./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB --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 a08177a217967a14ae274e8c5e7353d301abaa21d3437088fff2fbb57c26aa06 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:53:42,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:53:42,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:53:42,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:53:42,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:53:42,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:53:42,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:53:42,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:53:42,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:53:42,729 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:53:42,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:53:42,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:53:42,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:53:42,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:53:42,730 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:53:42,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:53:42,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:53:42,731 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:53:42,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:53:42,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:53:42,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:53:42,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:53:42,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:53:42,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:53:42,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:53:42,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:53:42,733 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:53:42,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:53:42,733 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:53:42,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:53:42,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:53:42,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:53:42,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:53:42,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:53:42,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:53:42,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:53:42,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:53:42,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:53:42,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:53:42,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:53:42,736 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:53:42,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:53:42,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:53:42,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:53:42,736 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:53:42,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:53:42,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:53:42,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:53:42,737 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a08177a217967a14ae274e8c5e7353d301abaa21d3437088fff2fbb57c26aa06 [2024-11-27 19:53:43,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:53:43,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:53:43,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:53:43,129 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:53:43,130 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:53:43,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i [2024-11-27 19:53:46,961 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data/c73ebb811/6826e469bb6b4471959f5930a9cae565/FLAG00e66780a [2024-11-27 19:53:47,305 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:53:47,306 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i [2024-11-27 19:53:47,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data/c73ebb811/6826e469bb6b4471959f5930a9cae565/FLAG00e66780a [2024-11-27 19:53:47,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data/c73ebb811/6826e469bb6b4471959f5930a9cae565 [2024-11-27 19:53:47,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:53:47,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:53:47,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:53:47,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:53:47,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:53:47,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:47,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fb6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47, skipping insertion in model container [2024-11-27 19:53:47,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:47,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:53:47,575 WARN L250 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_8b7c130d-1c11-45e8-bd2b-159355bb3785/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i[916,929] [2024-11-27 19:53:47,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:53:47,682 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:53:47,697 WARN L250 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_8b7c130d-1c11-45e8-bd2b-159355bb3785/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i[916,929] [2024-11-27 19:53:47,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:53:47,831 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:53:47,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47 WrapperNode [2024-11-27 19:53:47,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:53:47,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:53:47,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:53:47,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:53:47,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:47,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:47,944 INFO L138 Inliner]: procedures = 30, calls = 132, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 442 [2024-11-27 19:53:47,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:53:47,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:53:47,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:53:47,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:53:47,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:47,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:47,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:47,996 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-27 19:53:47,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:47,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:48,042 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:48,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:48,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:48,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:48,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:48,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:53:48,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:53:48,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:53:48,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:53:48,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (1/1) ... [2024-11-27 19:53:48,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:53:48,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:53:48,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:53:48,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-27 19:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-27 19:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-27 19:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 19:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-27 19:53:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 19:53:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:53:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:53:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 19:53:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:53:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:53:48,354 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:53:48,357 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:53:49,207 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-27 19:53:49,208 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:53:49,223 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:53:49,223 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:53:49,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:53:49 BoogieIcfgContainer [2024-11-27 19:53:49,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:53:49,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:53:49,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:53:49,253 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:53:49,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:53:47" (1/3) ... [2024-11-27 19:53:49,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4987641e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:53:49, skipping insertion in model container [2024-11-27 19:53:49,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:53:47" (2/3) ... [2024-11-27 19:53:49,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4987641e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:53:49, skipping insertion in model container [2024-11-27 19:53:49,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:53:49" (3/3) ... [2024-11-27 19:53:49,259 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-55.i [2024-11-27 19:53:49,282 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:53:49,284 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-55.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:53:49,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:53:49,402 INFO L333 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, 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;@6f31f15a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:53:49,403 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:53:49,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 96 states have (on average 1.4375) internal successors, (138), 97 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:53:49,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-27 19:53:49,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:49,427 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:49,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:49,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:49,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1876789283, now seen corresponding path program 1 times [2024-11-27 19:53:49,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:49,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379443197] [2024-11-27 19:53:49,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:49,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:53:50,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:50,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379443197] [2024-11-27 19:53:50,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379443197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:50,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:50,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:53:50,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801084279] [2024-11-27 19:53:50,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:50,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:53:50,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:50,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:53:50,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:53:50,433 INFO L87 Difference]: Start difference. First operand has 111 states, 96 states have (on average 1.4375) internal successors, (138), 97 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:50,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:50,516 INFO L93 Difference]: Finished difference Result 218 states and 334 transitions. [2024-11-27 19:53:50,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:53:50,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-27 19:53:50,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:50,528 INFO L225 Difference]: With dead ends: 218 [2024-11-27 19:53:50,529 INFO L226 Difference]: Without dead ends: 110 [2024-11-27 19:53:50,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:53:50,536 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:50,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 445 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:53:50,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-27 19:53:50,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2024-11-27 19:53:50,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:53:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-11-27 19:53:50,588 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 115 [2024-11-27 19:53:50,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:50,590 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-11-27 19:53:50,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-11-27 19:53:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-27 19:53:50,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:50,596 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:50,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:53:50,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:50,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:50,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1738119643, now seen corresponding path program 1 times [2024-11-27 19:53:50,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:50,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766685801] [2024-11-27 19:53:50,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:50,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:53:51,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766685801] [2024-11-27 19:53:51,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766685801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:51,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:51,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:53:51,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765178322] [2024-11-27 19:53:51,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:51,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:53:51,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:51,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:53:51,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:53:51,125 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:51,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:51,213 INFO L93 Difference]: Finished difference Result 218 states and 315 transitions. [2024-11-27 19:53:51,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:53:51,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-27 19:53:51,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:51,219 INFO L225 Difference]: With dead ends: 218 [2024-11-27 19:53:51,221 INFO L226 Difference]: Without dead ends: 112 [2024-11-27 19:53:51,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:53:51,223 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:51,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 446 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:53:51,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-27 19:53:51,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-27 19:53:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:53:51,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-11-27 19:53:51,249 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 115 [2024-11-27 19:53:51,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:51,249 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-11-27 19:53:51,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:51,250 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-11-27 19:53:51,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-27 19:53:51,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:51,256 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:51,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:53:51,257 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:51,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:51,257 INFO L85 PathProgramCache]: Analyzing trace with hash 36887719, now seen corresponding path program 1 times [2024-11-27 19:53:51,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:51,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804599505] [2024-11-27 19:53:51,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:51,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:53:51,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:51,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804599505] [2024-11-27 19:53:51,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804599505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:51,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:51,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:53:51,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280779547] [2024-11-27 19:53:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:51,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:53:51,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:51,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:53:51,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:53:51,659 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:51,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:51,718 INFO L93 Difference]: Finished difference Result 222 states and 319 transitions. [2024-11-27 19:53:51,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:53:51,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-27 19:53:51,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:51,723 INFO L225 Difference]: With dead ends: 222 [2024-11-27 19:53:51,723 INFO L226 Difference]: Without dead ends: 114 [2024-11-27 19:53:51,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:53:51,724 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:51,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:53:51,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-27 19:53:51,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-27 19:53:51,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.3838383838383839) internal successors, (137), 99 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:53:51,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2024-11-27 19:53:51,737 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 115 [2024-11-27 19:53:51,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:51,737 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2024-11-27 19:53:51,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:51,738 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2024-11-27 19:53:51,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-27 19:53:51,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:51,740 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:51,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:53:51,740 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:51,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:51,741 INFO L85 PathProgramCache]: Analyzing trace with hash 38734761, now seen corresponding path program 1 times [2024-11-27 19:53:51,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:51,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926441774] [2024-11-27 19:53:51,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:51,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:53:52,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:52,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926441774] [2024-11-27 19:53:52,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926441774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:52,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:52,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:53:52,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056962081] [2024-11-27 19:53:52,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:52,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:53:52,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:52,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:53:52,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:53:52,040 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:52,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:52,073 INFO L93 Difference]: Finished difference Result 223 states and 319 transitions. [2024-11-27 19:53:52,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:53:52,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-27 19:53:52,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:52,077 INFO L225 Difference]: With dead ends: 223 [2024-11-27 19:53:52,079 INFO L226 Difference]: Without dead ends: 113 [2024-11-27 19:53:52,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:53:52,081 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:52,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:53:52,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-27 19:53:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-27 19:53:52,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:53:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 160 transitions. [2024-11-27 19:53:52,106 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 160 transitions. Word has length 115 [2024-11-27 19:53:52,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:52,107 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 160 transitions. [2024-11-27 19:53:52,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:52,107 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 160 transitions. [2024-11-27 19:53:52,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-27 19:53:52,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:52,114 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:52,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:53:52,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:52,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:52,115 INFO L85 PathProgramCache]: Analyzing trace with hash -257716476, now seen corresponding path program 1 times [2024-11-27 19:53:52,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:52,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249057219] [2024-11-27 19:53:52,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:52,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:53:53,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:53,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249057219] [2024-11-27 19:53:53,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249057219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:53,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:53,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:53:53,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390417398] [2024-11-27 19:53:53,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:53,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:53:53,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:53,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:53:53,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:53:53,782 INFO L87 Difference]: Start difference. First operand 113 states and 160 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:54,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:54,678 INFO L93 Difference]: Finished difference Result 390 states and 551 transitions. [2024-11-27 19:53:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:53:54,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-27 19:53:54,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:54,682 INFO L225 Difference]: With dead ends: 390 [2024-11-27 19:53:54,682 INFO L226 Difference]: Without dead ends: 280 [2024-11-27 19:53:54,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:53:54,684 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 280 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:54,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 474 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 19:53:54,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-27 19:53:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 172. [2024-11-27 19:53:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 145 states have (on average 1.3724137931034484) internal successors, (199), 145 states have internal predecessors, (199), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:53:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 247 transitions. [2024-11-27 19:53:54,739 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 247 transitions. Word has length 117 [2024-11-27 19:53:54,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:54,740 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 247 transitions. [2024-11-27 19:53:54,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:54,740 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 247 transitions. [2024-11-27 19:53:54,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 19:53:54,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:54,744 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:54,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:53:54,745 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:54,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:54,746 INFO L85 PathProgramCache]: Analyzing trace with hash 37312769, now seen corresponding path program 1 times [2024-11-27 19:53:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:54,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859713385] [2024-11-27 19:53:54,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:54,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:53:56,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:56,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859713385] [2024-11-27 19:53:56,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859713385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:56,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:56,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 19:53:56,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984464090] [2024-11-27 19:53:56,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:56,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:53:56,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:56,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:53:56,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:53:56,282 INFO L87 Difference]: Start difference. First operand 172 states and 247 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:57,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:57,478 INFO L93 Difference]: Finished difference Result 390 states and 550 transitions. [2024-11-27 19:53:57,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 19:53:57,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-27 19:53:57,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:57,481 INFO L225 Difference]: With dead ends: 390 [2024-11-27 19:53:57,482 INFO L226 Difference]: Without dead ends: 280 [2024-11-27 19:53:57,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:53:57,483 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 282 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:57,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 601 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:53:57,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-27 19:53:57,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 180. [2024-11-27 19:53:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 153 states have (on average 1.3660130718954249) internal successors, (209), 153 states have internal predecessors, (209), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:53:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 257 transitions. [2024-11-27 19:53:57,513 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 257 transitions. Word has length 118 [2024-11-27 19:53:57,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:57,514 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 257 transitions. [2024-11-27 19:53:57,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:53:57,514 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 257 transitions. [2024-11-27 19:53:57,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-27 19:53:57,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:57,519 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:57,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:53:57,519 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:57,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:57,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1227907559, now seen corresponding path program 1 times [2024-11-27 19:53:57,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:57,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430181317] [2024-11-27 19:53:57,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:57,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:53:59,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:59,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430181317] [2024-11-27 19:53:59,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430181317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:59,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:59,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:53:59,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740675747] [2024-11-27 19:53:59,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:59,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:53:59,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:59,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:53:59,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:53:59,426 INFO L87 Difference]: Start difference. First operand 180 states and 257 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:53:59,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:59,974 INFO L93 Difference]: Finished difference Result 361 states and 506 transitions. [2024-11-27 19:53:59,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:53:59,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-27 19:53:59,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:59,978 INFO L225 Difference]: With dead ends: 361 [2024-11-27 19:53:59,979 INFO L226 Difference]: Without dead ends: 245 [2024-11-27 19:53:59,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:53:59,981 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 136 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:59,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 432 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:53:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-27 19:54:00,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 184. [2024-11-27 19:54:00,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 157 states have (on average 1.356687898089172) internal successors, (213), 157 states have internal predecessors, (213), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:54:00,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 261 transitions. [2024-11-27 19:54:00,005 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 261 transitions. Word has length 119 [2024-11-27 19:54:00,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:00,006 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 261 transitions. [2024-11-27 19:54:00,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:00,007 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 261 transitions. [2024-11-27 19:54:00,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-27 19:54:00,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:00,011 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:00,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:54:00,011 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:00,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:00,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1143831703, now seen corresponding path program 1 times [2024-11-27 19:54:00,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:00,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145499355] [2024-11-27 19:54:00,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:00,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:00,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:00,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145499355] [2024-11-27 19:54:00,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145499355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:00,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:00,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:54:00,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483064581] [2024-11-27 19:54:00,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:00,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:00,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:00,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:00,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:00,987 INFO L87 Difference]: Start difference. First operand 184 states and 261 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:01,632 INFO L93 Difference]: Finished difference Result 358 states and 502 transitions. [2024-11-27 19:54:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:54:01,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-27 19:54:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:01,635 INFO L225 Difference]: With dead ends: 358 [2024-11-27 19:54:01,635 INFO L226 Difference]: Without dead ends: 246 [2024-11-27 19:54:01,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:54:01,637 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 56 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:01,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 683 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:54:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-27 19:54:01,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 205. [2024-11-27 19:54:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 178 states have (on average 1.3426966292134832) internal successors, (239), 178 states have internal predecessors, (239), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:54:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 287 transitions. [2024-11-27 19:54:01,655 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 287 transitions. Word has length 119 [2024-11-27 19:54:01,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:01,656 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 287 transitions. [2024-11-27 19:54:01,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:01,656 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 287 transitions. [2024-11-27 19:54:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 19:54:01,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:01,658 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:01,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:54:01,659 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:01,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:01,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1120230060, now seen corresponding path program 1 times [2024-11-27 19:54:01,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:01,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148197177] [2024-11-27 19:54:01,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:01,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:03,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:03,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148197177] [2024-11-27 19:54:03,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148197177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:03,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:03,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:54:03,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307582045] [2024-11-27 19:54:03,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:03,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:54:03,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:03,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:54:03,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:03,682 INFO L87 Difference]: Start difference. First operand 205 states and 287 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:04,042 INFO L93 Difference]: Finished difference Result 453 states and 636 transitions. [2024-11-27 19:54:04,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:54:04,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-27 19:54:04,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:04,045 INFO L225 Difference]: With dead ends: 453 [2024-11-27 19:54:04,048 INFO L226 Difference]: Without dead ends: 323 [2024-11-27 19:54:04,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:54:04,050 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 100 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:04,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 418 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:54:04,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-27 19:54:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 320. [2024-11-27 19:54:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 280 states have (on average 1.3464285714285715) internal successors, (377), 280 states have internal predecessors, (377), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:54:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 449 transitions. [2024-11-27 19:54:04,084 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 449 transitions. Word has length 120 [2024-11-27 19:54:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:04,084 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 449 transitions. [2024-11-27 19:54:04,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 449 transitions. [2024-11-27 19:54:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 19:54:04,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:04,087 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:04,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:54:04,087 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:04,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:04,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1102352610, now seen corresponding path program 1 times [2024-11-27 19:54:04,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:04,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017933954] [2024-11-27 19:54:04,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:04,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 19:54:04,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:04,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017933954] [2024-11-27 19:54:04,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017933954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:54:04,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783299921] [2024-11-27 19:54:04,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:04,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:04,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:04,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:54:04,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:54:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:04,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:54:04,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:04,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:04,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783299921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:04,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:54:04,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-27 19:54:04,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729787194] [2024-11-27 19:54:04,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:04,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:54:04,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:04,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:54:04,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:54:04,814 INFO L87 Difference]: Start difference. First operand 320 states and 449 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:04,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:04,884 INFO L93 Difference]: Finished difference Result 560 states and 789 transitions. [2024-11-27 19:54:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:54:04,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-27 19:54:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:04,889 INFO L225 Difference]: With dead ends: 560 [2024-11-27 19:54:04,891 INFO L226 Difference]: Without dead ends: 326 [2024-11-27 19:54:04,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:54:04,892 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:04,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 587 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-27 19:54:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2024-11-27 19:54:04,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 286 states have (on average 1.3391608391608392) internal successors, (383), 286 states have internal predecessors, (383), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:54:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 455 transitions. [2024-11-27 19:54:04,939 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 455 transitions. Word has length 121 [2024-11-27 19:54:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:04,939 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 455 transitions. [2024-11-27 19:54:04,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 455 transitions. [2024-11-27 19:54:04,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 19:54:04,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:04,945 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:04,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 19:54:05,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:05,146 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:05,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2113469860, now seen corresponding path program 1 times [2024-11-27 19:54:05,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:05,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474129270] [2024-11-27 19:54:05,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:05,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:05,568 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:05,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:05,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474129270] [2024-11-27 19:54:05,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474129270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:05,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:05,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:54:05,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973269298] [2024-11-27 19:54:05,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:05,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:54:05,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:05,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:54:05,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:54:05,571 INFO L87 Difference]: Start difference. First operand 326 states and 455 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:06,054 INFO L93 Difference]: Finished difference Result 642 states and 892 transitions. [2024-11-27 19:54:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:54:06,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-27 19:54:06,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:06,058 INFO L225 Difference]: With dead ends: 642 [2024-11-27 19:54:06,058 INFO L226 Difference]: Without dead ends: 402 [2024-11-27 19:54:06,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:06,060 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 41 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:06,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 459 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:54:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-27 19:54:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 332. [2024-11-27 19:54:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 292 states have (on average 1.3390410958904109) internal successors, (391), 292 states have internal predecessors, (391), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:54:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 463 transitions. [2024-11-27 19:54:06,105 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 463 transitions. Word has length 121 [2024-11-27 19:54:06,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:06,107 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 463 transitions. [2024-11-27 19:54:06,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 463 transitions. [2024-11-27 19:54:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 19:54:06,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:06,111 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:06,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:54:06,111 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:06,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1769101728, now seen corresponding path program 1 times [2024-11-27 19:54:06,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:06,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004398308] [2024-11-27 19:54:06,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:06,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:06,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004398308] [2024-11-27 19:54:06,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004398308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:06,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:06,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:54:06,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431632912] [2024-11-27 19:54:06,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:06,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:54:06,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:06,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:54:06,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:54:06,259 INFO L87 Difference]: Start difference. First operand 332 states and 463 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:06,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:06,288 INFO L93 Difference]: Finished difference Result 481 states and 672 transitions. [2024-11-27 19:54:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:54:06,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-27 19:54:06,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:06,291 INFO L225 Difference]: With dead ends: 481 [2024-11-27 19:54:06,292 INFO L226 Difference]: Without dead ends: 335 [2024-11-27 19:54:06,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:54:06,295 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:06,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:06,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-27 19:54:06,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2024-11-27 19:54:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 295 states have (on average 1.335593220338983) internal successors, (394), 295 states have internal predecessors, (394), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:54:06,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 466 transitions. [2024-11-27 19:54:06,337 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 466 transitions. Word has length 121 [2024-11-27 19:54:06,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:06,338 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 466 transitions. [2024-11-27 19:54:06,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:06,339 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 466 transitions. [2024-11-27 19:54:06,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 19:54:06,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:06,344 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:06,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:54:06,344 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:06,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:06,345 INFO L85 PathProgramCache]: Analyzing trace with hash -2054832001, now seen corresponding path program 1 times [2024-11-27 19:54:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:06,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896616590] [2024-11-27 19:54:06,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:06,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:07,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:07,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896616590] [2024-11-27 19:54:07,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896616590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:07,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:07,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:54:07,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115225076] [2024-11-27 19:54:07,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:07,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:07,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:07,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:07,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:07,841 INFO L87 Difference]: Start difference. First operand 335 states and 466 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:08,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:08,866 INFO L93 Difference]: Finished difference Result 623 states and 866 transitions. [2024-11-27 19:54:08,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:54:08,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-27 19:54:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:08,870 INFO L225 Difference]: With dead ends: 623 [2024-11-27 19:54:08,870 INFO L226 Difference]: Without dead ends: 375 [2024-11-27 19:54:08,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:54:08,873 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 58 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:08,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 730 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:54:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-27 19:54:08,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 330. [2024-11-27 19:54:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 290 states have (on average 1.3275862068965518) internal successors, (385), 290 states have internal predecessors, (385), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:54:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 457 transitions. [2024-11-27 19:54:08,901 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 457 transitions. Word has length 121 [2024-11-27 19:54:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:08,901 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 457 transitions. [2024-11-27 19:54:08,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 457 transitions. [2024-11-27 19:54:08,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 19:54:08,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:08,906 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:08,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 19:54:08,907 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:08,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:08,908 INFO L85 PathProgramCache]: Analyzing trace with hash -784431070, now seen corresponding path program 1 times [2024-11-27 19:54:08,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:08,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359569310] [2024-11-27 19:54:08,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:08,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 19:54:09,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:09,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359569310] [2024-11-27 19:54:09,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359569310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:54:09,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311298632] [2024-11-27 19:54:09,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:09,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:09,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:09,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:54:09,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:54:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:09,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:54:09,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:09,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:09,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311298632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:09,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:54:09,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-27 19:54:09,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642291550] [2024-11-27 19:54:09,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:09,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:54:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:09,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:54:09,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:54:09,790 INFO L87 Difference]: Start difference. First operand 330 states and 457 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:09,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:09,846 INFO L93 Difference]: Finished difference Result 579 states and 804 transitions. [2024-11-27 19:54:09,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:54:09,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-27 19:54:09,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:09,850 INFO L225 Difference]: With dead ends: 579 [2024-11-27 19:54:09,850 INFO L226 Difference]: Without dead ends: 336 [2024-11-27 19:54:09,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:54:09,852 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:09,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 594 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:09,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-27 19:54:09,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2024-11-27 19:54:09,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 296 states have (on average 1.320945945945946) internal successors, (391), 296 states have internal predecessors, (391), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:54:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 463 transitions. [2024-11-27 19:54:09,883 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 463 transitions. Word has length 122 [2024-11-27 19:54:09,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:09,884 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 463 transitions. [2024-11-27 19:54:09,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:09,885 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 463 transitions. [2024-11-27 19:54:09,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-27 19:54:09,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:09,888 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:09,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:54:10,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 19:54:10,089 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:10,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:10,089 INFO L85 PathProgramCache]: Analyzing trace with hash -394872803, now seen corresponding path program 1 times [2024-11-27 19:54:10,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:10,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735348001] [2024-11-27 19:54:10,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:10,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:10,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:10,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735348001] [2024-11-27 19:54:10,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735348001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:10,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:10,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:54:10,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419982468] [2024-11-27 19:54:10,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:10,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:10,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:10,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:10,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:10,555 INFO L87 Difference]: Start difference. First operand 336 states and 463 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:11,095 INFO L93 Difference]: Finished difference Result 917 states and 1260 transitions. [2024-11-27 19:54:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:54:11,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-27 19:54:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:11,101 INFO L225 Difference]: With dead ends: 917 [2024-11-27 19:54:11,101 INFO L226 Difference]: Without dead ends: 668 [2024-11-27 19:54:11,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:54:11,103 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 204 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:11,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 653 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:54:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-27 19:54:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 583. [2024-11-27 19:54:11,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 517 states have (on average 1.3152804642166345) internal successors, (680), 517 states have internal predecessors, (680), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 19:54:11,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 800 transitions. [2024-11-27 19:54:11,145 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 800 transitions. Word has length 124 [2024-11-27 19:54:11,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:11,145 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 800 transitions. [2024-11-27 19:54:11,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:11,146 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 800 transitions. [2024-11-27 19:54:11,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-27 19:54:11,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:11,148 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:11,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:54:11,148 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:11,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:11,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2083816545, now seen corresponding path program 1 times [2024-11-27 19:54:11,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:11,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107469275] [2024-11-27 19:54:11,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:11,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:12,621 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:12,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:12,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107469275] [2024-11-27 19:54:12,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107469275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:12,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:12,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:54:12,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164838407] [2024-11-27 19:54:12,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:12,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:12,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:12,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:12,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:12,623 INFO L87 Difference]: Start difference. First operand 583 states and 800 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:13,143 INFO L93 Difference]: Finished difference Result 914 states and 1248 transitions. [2024-11-27 19:54:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:54:13,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-27 19:54:13,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:13,149 INFO L225 Difference]: With dead ends: 914 [2024-11-27 19:54:13,149 INFO L226 Difference]: Without dead ends: 645 [2024-11-27 19:54:13,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:54:13,151 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 46 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:13,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 534 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:54:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-27 19:54:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 581. [2024-11-27 19:54:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 515 states have (on average 1.3106796116504855) internal successors, (675), 515 states have internal predecessors, (675), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 19:54:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 795 transitions. [2024-11-27 19:54:13,202 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 795 transitions. Word has length 124 [2024-11-27 19:54:13,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:13,203 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 795 transitions. [2024-11-27 19:54:13,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 795 transitions. [2024-11-27 19:54:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 19:54:13,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:13,208 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:13,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 19:54:13,208 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:13,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:13,209 INFO L85 PathProgramCache]: Analyzing trace with hash 786667071, now seen corresponding path program 1 times [2024-11-27 19:54:13,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:13,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797197117] [2024-11-27 19:54:13,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:13,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:13,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:13,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797197117] [2024-11-27 19:54:13,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797197117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:13,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:13,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:54:13,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710928519] [2024-11-27 19:54:13,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:13,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:54:13,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:13,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:54:13,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:54:13,378 INFO L87 Difference]: Start difference. First operand 581 states and 795 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:13,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:13,422 INFO L93 Difference]: Finished difference Result 1075 states and 1472 transitions. [2024-11-27 19:54:13,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:54:13,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2024-11-27 19:54:13,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:13,427 INFO L225 Difference]: With dead ends: 1075 [2024-11-27 19:54:13,427 INFO L226 Difference]: Without dead ends: 581 [2024-11-27 19:54:13,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:54:13,429 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:13,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 298 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:13,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-27 19:54:13,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2024-11-27 19:54:13,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 515 states have (on average 1.3029126213592233) internal successors, (671), 515 states have internal predecessors, (671), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 19:54:13,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 791 transitions. [2024-11-27 19:54:13,474 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 791 transitions. Word has length 126 [2024-11-27 19:54:13,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:13,475 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 791 transitions. [2024-11-27 19:54:13,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:13,475 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 791 transitions. [2024-11-27 19:54:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 19:54:13,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:13,478 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:13,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 19:54:13,479 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:13,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:13,480 INFO L85 PathProgramCache]: Analyzing trace with hash 253819977, now seen corresponding path program 1 times [2024-11-27 19:54:13,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:13,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375770012] [2024-11-27 19:54:13,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:13,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:54:13,627 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:54:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:54:13,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 19:54:13,822 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 19:54:13,823 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 19:54:13,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 19:54:13,830 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:13,924 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:54:13,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:54:13 BoogieIcfgContainer [2024-11-27 19:54:13,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:54:13,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:54:13,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:54:13,929 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:54:13,930 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:53:49" (3/4) ... [2024-11-27 19:54:13,932 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 19:54:13,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:54:13,934 INFO L158 Benchmark]: Toolchain (without parser) took 26592.02ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 92.1MB in the beginning and 165.6MB in the end (delta: -73.5MB). Peak memory consumption was 233.0MB. Max. memory is 16.1GB. [2024-11-27 19:54:13,935 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:13,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.97ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 76.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:54:13,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.20ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 72.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:13,936 INFO L158 Benchmark]: Boogie Preprocessor took 118.73ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 69.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:54:13,936 INFO L158 Benchmark]: RCFGBuilder took 1159.14ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 38.8MB in the end (delta: 30.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 19:54:13,936 INFO L158 Benchmark]: TraceAbstraction took 24700.51ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 38.2MB in the beginning and 165.6MB in the end (delta: -127.4MB). Peak memory consumption was 174.3MB. Max. memory is 16.1GB. [2024-11-27 19:54:13,937 INFO L158 Benchmark]: Witness Printer took 5.16ms. Allocated memory is still 419.4MB. Free memory was 165.6MB in the beginning and 165.6MB in the end (delta: 56.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:54:13,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.97ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 76.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.20ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 72.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 118.73ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 69.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1159.14ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 38.8MB in the end (delta: 30.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 24700.51ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 38.2MB in the beginning and 165.6MB in the end (delta: -127.4MB). Peak memory consumption was 174.3MB. Max. memory is 16.1GB. * Witness Printer took 5.16ms. Allocated memory is still 419.4MB. Free memory was 165.6MB in the beginning and 165.6MB in the end (delta: 56.8kB). Peak memory consumption was 8.4MB. 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 shiftRight at line 79, overapproximation of shiftRight at line 79, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryDOUBLEComparisonOperation at line 116, overapproximation of someBinaryDOUBLEComparisonOperation at line 103, overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of someBinaryDOUBLEComparisonOperation at line 99, overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of someBinaryDOUBLEComparisonOperation at line 103, overapproximation of someBinaryDOUBLEComparisonOperation at line 99, overapproximation of someBinaryDOUBLEComparisonOperation at line 101. Possible FailurePath: [L38] unsigned char isInitial = 0; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 10, 0, 0, 256.75, 63.5, 1.8, 0.25, 16.5, -5, 128, 4.6, 500, 2, 100 }; [L55] signed long int last_1_WrapperStruct00_var_1_12 = -5; [L56] unsigned char last_1_WrapperStruct00_var_1_17 = 2; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L120] isInitial = 1 [L121] FCALL initially() [L123] CALL updateLastVariables() [L112] EXPR WrapperStruct00.var_1_12 [L112] last_1_WrapperStruct00_var_1_12 = WrapperStruct00.var_1_12 [L113] EXPR WrapperStruct00.var_1_17 [L113] last_1_WrapperStruct00_var_1_17 = WrapperStruct00.var_1_17 [L123] RET updateLastVariables() [L124] CALL updateVariables() [L90] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L91] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L92] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L93] WrapperStruct00.var_1_5 = __VERIFIER_nondet_uchar() [L94] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L95] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L96] WrapperStruct00.var_1_8 = __VERIFIER_nondet_double() [L97] EXPR WrapperStruct00.var_1_8 [L97] EXPR WrapperStruct00.var_1_8 >= 0.0F && WrapperStruct00.var_1_8 <= -1.0e-20F [L97] EXPR WrapperStruct00.var_1_8 [L97] EXPR WrapperStruct00.var_1_8 >= 0.0F && WrapperStruct00.var_1_8 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L97] EXPR (WrapperStruct00.var_1_8 >= 0.0F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L97] CALL assume_abort_if_not((WrapperStruct00.var_1_8 >= 0.0F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L97] RET assume_abort_if_not((WrapperStruct00.var_1_8 >= 0.0F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L98] WrapperStruct00.var_1_9 = __VERIFIER_nondet_double() [L99] EXPR WrapperStruct00.var_1_9 [L99] EXPR WrapperStruct00.var_1_9 >= 0.0F && WrapperStruct00.var_1_9 <= -1.0e-20F [L99] EXPR WrapperStruct00.var_1_9 [L99] EXPR WrapperStruct00.var_1_9 >= 0.0F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L99] EXPR (WrapperStruct00.var_1_9 >= 0.0F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L99] CALL assume_abort_if_not((WrapperStruct00.var_1_9 >= 0.0F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L99] RET assume_abort_if_not((WrapperStruct00.var_1_9 >= 0.0F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L100] WrapperStruct00.var_1_10 = __VERIFIER_nondet_double() [L101] EXPR WrapperStruct00.var_1_10 [L101] EXPR WrapperStruct00.var_1_10 >= 0.0F && WrapperStruct00.var_1_10 <= -1.0e-20F [L101] EXPR WrapperStruct00.var_1_10 [L101] EXPR WrapperStruct00.var_1_10 >= 0.0F && WrapperStruct00.var_1_10 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L101] EXPR (WrapperStruct00.var_1_10 >= 0.0F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L101] CALL assume_abort_if_not((WrapperStruct00.var_1_10 >= 0.0F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L101] RET assume_abort_if_not((WrapperStruct00.var_1_10 >= 0.0F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L102] WrapperStruct00.var_1_11 = __VERIFIER_nondet_double() [L103] EXPR WrapperStruct00.var_1_11 [L103] EXPR WrapperStruct00.var_1_11 >= 0.0F && WrapperStruct00.var_1_11 <= -1.0e-20F [L103] EXPR WrapperStruct00.var_1_11 [L103] EXPR WrapperStruct00.var_1_11 >= 0.0F && WrapperStruct00.var_1_11 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L103] EXPR (WrapperStruct00.var_1_11 >= 0.0F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L103] CALL assume_abort_if_not((WrapperStruct00.var_1_11 >= 0.0F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L103] RET assume_abort_if_not((WrapperStruct00.var_1_11 >= 0.0F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L104] WrapperStruct00.var_1_14 = __VERIFIER_nondet_uchar() [L105] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L106] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L107] WrapperStruct00.var_1_18 = __VERIFIER_nondet_uchar() [L108] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_18 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_18 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L109] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_18 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L109] RET assume_abort_if_not(WrapperStruct00.var_1_18 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L124] RET updateVariables() [L125] CALL step() [L60] unsigned char stepLocal_1 = last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17; [L61] signed long int stepLocal_0 = last_1_WrapperStruct00_var_1_17; [L62] WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2, stepLocal_1=0] [L62] COND TRUE WrapperStruct00.var_1_2 [L63] stepLocal_1 && WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2] [L63] COND FALSE !(stepLocal_1 && WrapperStruct00.var_1_5) [L73] WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2] [L73] COND TRUE WrapperStruct00.var_1_2 [L74] EXPR WrapperStruct00.var_1_8 [L74] EXPR WrapperStruct00.var_1_9 [L74] EXPR WrapperStruct00.var_1_10 [L74] EXPR WrapperStruct00.var_1_11 [L74] WrapperStruct00.var_1_7 = (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11) [L76] EXPR WrapperStruct00.var_1_8 [L76] WrapperStruct00.var_1_15 = WrapperStruct00.var_1_8 [L77] EXPR WrapperStruct00.var_1_14 [L77] WrapperStruct00.var_1_16 = WrapperStruct00.var_1_14 [L78] EXPR WrapperStruct00.var_1_18 [L78] WrapperStruct00.var_1_17 = WrapperStruct00.var_1_18 [L79] EXPR WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2] [L79] EXPR -4 >> WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2] [L79] EXPR WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2] [L79] EXPR (((-4 >> WrapperStruct00.var_1_1)) < (WrapperStruct00.var_1_1)) ? ((-4 >> WrapperStruct00.var_1_1)) : (WrapperStruct00.var_1_1) [L79] EXPR WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2] [L79] EXPR -4 >> WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2] [L79] EXPR (((-4 >> WrapperStruct00.var_1_1)) < (WrapperStruct00.var_1_1)) ? ((-4 >> WrapperStruct00.var_1_1)) : (WrapperStruct00.var_1_1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2] [L79] signed long int stepLocal_3 = ((((-4 >> WrapperStruct00.var_1_1)) < (WrapperStruct00.var_1_1)) ? ((-4 >> WrapperStruct00.var_1_1)) : (WrapperStruct00.var_1_1)); [L80] EXPR WrapperStruct00.var_1_1 [L80] signed long int stepLocal_2 = WrapperStruct00.var_1_1 / -8; [L81] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2, stepLocal_0=2, stepLocal_2=-1, stepLocal_3=-256] [L81] COND FALSE !((~ WrapperStruct00.var_1_17) <= stepLocal_3) [L86] EXPR WrapperStruct00.var_1_17 [L86] EXPR WrapperStruct00.var_1_14 [L86] WrapperStruct00.var_1_12 = (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_14) [L125] RET step() [L126] CALL, EXPR property() [L116] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17)) [L116] EXPR (last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR (WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17))) && (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1) [L116] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1 [L116] EXPR WrapperStruct00.var_1_7 [L116] EXPR WrapperStruct00.var_1_8 [L116] EXPR WrapperStruct00.var_1_9 [L116] EXPR WrapperStruct00.var_1_10 [L116] EXPR WrapperStruct00.var_1_11 [L116] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR (WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17))) && (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR ((WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17))) && (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1)) && (((~ WrapperStruct00.var_1_17) <= (((((-4 >> WrapperStruct00.var_1_1)) < (WrapperStruct00.var_1_1)) ? ((-4 >> WrapperStruct00.var_1_1)) : (WrapperStruct00.var_1_1)))) ? (((WrapperStruct00.var_1_14 - 64) < (WrapperStruct00.var_1_1 / -8)) ? (WrapperStruct00.var_1_12 == ((signed long int) WrapperStruct00.var_1_1)) : 1) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_14)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR (((WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17))) && (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1)) && (((~ WrapperStruct00.var_1_17) <= (((((-4 >> WrapperStruct00.var_1_1)) < (WrapperStruct00.var_1_1)) ? ((-4 >> WrapperStruct00.var_1_1)) : (WrapperStruct00.var_1_1)))) ? (((WrapperStruct00.var_1_14 - 64) < (WrapperStruct00.var_1_1 / -8)) ? (WrapperStruct00.var_1_12 == ((signed long int) WrapperStruct00.var_1_1)) : 1) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_14))))) && (WrapperStruct00.var_1_15 == ((float) WrapperStruct00.var_1_8)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR ((((WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17))) && (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1)) && (((~ WrapperStruct00.var_1_17) <= (((((-4 >> WrapperStruct00.var_1_1)) < (WrapperStruct00.var_1_1)) ? ((-4 >> WrapperStruct00.var_1_1)) : (WrapperStruct00.var_1_1)))) ? (((WrapperStruct00.var_1_14 - 64) < (WrapperStruct00.var_1_1 / -8)) ? (WrapperStruct00.var_1_12 == ((signed long int) WrapperStruct00.var_1_1)) : 1) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_14))))) && (WrapperStruct00.var_1_15 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_16 == ((unsigned long int) WrapperStruct00.var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116] EXPR (((((WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17))) && (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1)) && (((~ WrapperStruct00.var_1_17) <= (((((-4 >> WrapperStruct00.var_1_1)) < (WrapperStruct00.var_1_1)) ? ((-4 >> WrapperStruct00.var_1_1)) : (WrapperStruct00.var_1_1)))) ? (((WrapperStruct00.var_1_14 - 64) < (WrapperStruct00.var_1_1 / -8)) ? (WrapperStruct00.var_1_12 == ((signed long int) WrapperStruct00.var_1_1)) : 1) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_14))))) && (WrapperStruct00.var_1_15 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_16 == ((unsigned long int) WrapperStruct00.var_1_14))) && (WrapperStruct00.var_1_17 == ((unsigned char) WrapperStruct00.var_1_18)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L116-L117] return (((((WrapperStruct00.var_1_2 ? (((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) && WrapperStruct00.var_1_5) ? ((last_1_WrapperStruct00_var_1_12 >= last_1_WrapperStruct00_var_1_17) ? (WrapperStruct00.var_1_1 == ((unsigned short int) 5)) : (WrapperStruct00.var_1_1 == ((unsigned short int) ((((25) < (last_1_WrapperStruct00_var_1_17)) ? (25) : (last_1_WrapperStruct00_var_1_17)))))) : 1) : (WrapperStruct00.var_1_1 == ((unsigned short int) last_1_WrapperStruct00_var_1_17))) && (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_7 == ((double) (((WrapperStruct00.var_1_8 + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) - WrapperStruct00.var_1_11))) : 1)) && (((~ WrapperStruct00.var_1_17) <= (((((-4 >> WrapperStruct00.var_1_1)) < (WrapperStruct00.var_1_1)) ? ((-4 >> WrapperStruct00.var_1_1)) : (WrapperStruct00.var_1_1)))) ? (((WrapperStruct00.var_1_14 - 64) < (WrapperStruct00.var_1_1 / -8)) ? (WrapperStruct00.var_1_12 == ((signed long int) WrapperStruct00.var_1_1)) : 1) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_14))))) && (WrapperStruct00.var_1_15 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_16 == ((unsigned long int) WrapperStruct00.var_1_14))) && (WrapperStruct00.var_1_17 == ((unsigned char) WrapperStruct00.var_1_18)) ; [L126] RET, EXPR property() [L126] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=-5, last_1_WrapperStruct00_var_1_17=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.5s, OverallIterations: 18, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1209 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1206 mSDsluCounter, 8402 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5948 mSDsCounter, 212 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2260 IncrementalHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 212 mSolverCounterUnsat, 2454 mSDtfsCounter, 2260 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 406 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=583occurred in iteration=15, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 580 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 2402 NumberOfCodeBlocks, 2402 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2257 ConstructedInterpolants, 0 QuantifiedInterpolants, 3762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 900 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 19 InterpolantComputations, 17 PerfectInterpolantSequences, 4950/5016 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-27 19:54:13,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB --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 a08177a217967a14ae274e8c5e7353d301abaa21d3437088fff2fbb57c26aa06 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:54:17,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:54:17,289 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 19:54:17,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:54:17,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:54:17,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:54:17,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:54:17,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:54:17,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:54:17,358 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:54:17,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:54:17,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:54:17,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:54:17,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:54:17,360 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:54:17,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 19:54:17,361 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 19:54:17,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:54:17,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:54:17,362 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:54:17,362 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:54:17,362 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:54:17,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:54:17,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:54:17,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:54:17,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:17,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:54:17,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:54:17,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:54:17,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:54:17,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:17,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:54:17,367 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:54:17,367 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:54:17,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:54:17,367 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 19:54:17,367 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 19:54:17,368 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:54:17,368 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:54:17,369 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:54:17,369 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:54:17,369 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a08177a217967a14ae274e8c5e7353d301abaa21d3437088fff2fbb57c26aa06 [2024-11-27 19:54:17,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:54:17,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:54:17,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:54:17,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:54:17,799 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:54:17,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i [2024-11-27 19:54:21,673 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data/83839222a/52e6d094d3d647b1b27bceb5c9d427ca/FLAG406407de5 [2024-11-27 19:54:22,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:54:22,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i [2024-11-27 19:54:22,114 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data/83839222a/52e6d094d3d647b1b27bceb5c9d427ca/FLAG406407de5 [2024-11-27 19:54:22,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/data/83839222a/52e6d094d3d647b1b27bceb5c9d427ca [2024-11-27 19:54:22,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:54:22,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:54:22,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:54:22,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:54:22,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:54:22,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6ac6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22, skipping insertion in model container [2024-11-27 19:54:22,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:54:22,411 WARN L250 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_8b7c130d-1c11-45e8-bd2b-159355bb3785/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i[916,929] [2024-11-27 19:54:22,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:54:22,555 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:54:22,574 WARN L250 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_8b7c130d-1c11-45e8-bd2b-159355bb3785/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-55.i[916,929] [2024-11-27 19:54:22,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:54:22,666 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:54:22,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22 WrapperNode [2024-11-27 19:54:22,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:54:22,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:54:22,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:54:22,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:54:22,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,767 INFO L138 Inliner]: procedures = 40, calls = 132, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 415 [2024-11-27 19:54:22,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:54:22,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:54:22,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:54:22,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:54:22,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,792 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,817 INFO L175 MemorySlicer]: Split 109 memory accesses to 2 slices as follows [2, 107]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 32 writes are split as follows [0, 32]. [2024-11-27 19:54:22,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,846 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:54:22,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:54:22,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:54:22,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:54:22,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (1/1) ... [2024-11-27 19:54:22,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:22,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:22,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:54:22,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:54:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:54:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-27 19:54:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-27 19:54:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-27 19:54:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-27 19:54:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-27 19:54:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-27 19:54:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 19:54:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 19:54:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 19:54:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 19:54:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-27 19:54:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-27 19:54:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 19:54:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 19:54:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-27 19:54:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-27 19:54:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-27 19:54:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-27 19:54:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-27 19:54:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-27 19:54:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-27 19:54:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-27 19:54:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-27 19:54:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-27 19:54:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:54:22,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:54:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-27 19:54:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-27 19:54:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:54:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:54:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-27 19:54:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-27 19:54:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-27 19:54:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-27 19:54:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 19:54:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 19:54:23,161 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:54:23,164 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:54:31,264 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-27 19:54:31,265 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:54:31,285 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:54:31,286 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:54:31,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:54:31 BoogieIcfgContainer [2024-11-27 19:54:31,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:54:31,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:54:31,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:54:31,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:54:31,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:54:22" (1/3) ... [2024-11-27 19:54:31,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbc3945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:54:31, skipping insertion in model container [2024-11-27 19:54:31,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:22" (2/3) ... [2024-11-27 19:54:31,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbc3945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:54:31, skipping insertion in model container [2024-11-27 19:54:31,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:54:31" (3/3) ... [2024-11-27 19:54:31,308 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-55.i [2024-11-27 19:54:31,326 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:54:31,329 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-55.i that has 2 procedures, 99 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:54:31,452 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:54:31,476 INFO L333 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, 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;@3dc3ce7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:54:31,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:54:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:54:31,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-27 19:54:31,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:31,500 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:31,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:31,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2007882332, now seen corresponding path program 1 times [2024-11-27 19:54:31,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:31,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036262438] [2024-11-27 19:54:31,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:31,532 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 [2024-11-27 19:54:31,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:54:31,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:54:31,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:32,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:54:32,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:32,431 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-27 19:54:32,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:32,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:32,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036262438] [2024-11-27 19:54:32,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036262438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:32,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:32,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:54:32,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546127704] [2024-11-27 19:54:32,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:32,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:54:32,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:32,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:54:32,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:54:32,473 INFO L87 Difference]: Start difference. First operand has 99 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:32,512 INFO L93 Difference]: Finished difference Result 191 states and 298 transitions. [2024-11-27 19:54:32,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:54:32,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-27 19:54:32,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:32,523 INFO L225 Difference]: With dead ends: 191 [2024-11-27 19:54:32,524 INFO L226 Difference]: Without dead ends: 95 [2024-11-27 19:54:32,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:54:32,535 INFO L435 NwaCegarLoop]: 137 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, 137 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 [2024-11-27 19:54:32,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-27 19:54:32,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-27 19:54:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 81 states have (on average 1.3950617283950617) internal successors, (113), 81 states have internal predecessors, (113), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:54:32,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2024-11-27 19:54:32,612 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 113 [2024-11-27 19:54:32,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:32,613 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-11-27 19:54:32,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions. [2024-11-27 19:54:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-27 19:54:32,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:32,618 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:32,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-27 19:54:32,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:32,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:32,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:32,820 INFO L85 PathProgramCache]: Analyzing trace with hash 104285460, now seen corresponding path program 1 times [2024-11-27 19:54:32,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:32,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961937517] [2024-11-27 19:54:32,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:32,822 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 [2024-11-27 19:54:32,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:54:32,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:54:32,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:33,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:54:33,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-27 19:54:33,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:33,864 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:33,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961937517] [2024-11-27 19:54:33,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961937517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:33,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:33,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:54:33,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077166172] [2024-11-27 19:54:33,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:33,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:54:33,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:33,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:54:33,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:33,873 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:34,071 INFO L93 Difference]: Finished difference Result 189 states and 274 transitions. [2024-11-27 19:54:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:54:34,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-27 19:54:34,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:34,074 INFO L225 Difference]: With dead ends: 189 [2024-11-27 19:54:34,075 INFO L226 Difference]: Without dead ends: 97 [2024-11-27 19:54:34,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:34,077 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:34,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 394 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:54:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-27 19:54:34,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-27 19:54:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 83 states have internal predecessors, (115), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:54:34,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2024-11-27 19:54:34,093 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 113 [2024-11-27 19:54:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:34,095 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2024-11-27 19:54:34,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2024-11-27 19:54:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-27 19:54:34,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:34,098 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:34,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-27 19:54:34,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:34,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:34,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:34,300 INFO L85 PathProgramCache]: Analyzing trace with hash 836252886, now seen corresponding path program 1 times [2024-11-27 19:54:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:34,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854096606] [2024-11-27 19:54:34,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:34,302 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 [2024-11-27 19:54:34,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:54:34,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:54:34,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-27 19:54:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:35,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:54:35,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:35,374 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:35,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:35,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854096606] [2024-11-27 19:54:35,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854096606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:35,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:35,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:54:35,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866063036] [2024-11-27 19:54:35,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:35,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:54:35,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:35,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:54:35,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:54:35,381 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:35,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:35,782 INFO L93 Difference]: Finished difference Result 196 states and 282 transitions. [2024-11-27 19:54:35,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:54:35,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-27 19:54:35,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:35,786 INFO L225 Difference]: With dead ends: 196 [2024-11-27 19:54:35,786 INFO L226 Difference]: Without dead ends: 102 [2024-11-27 19:54:35,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:54:35,789 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:35,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 512 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:54:35,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-27 19:54:35,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-11-27 19:54:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:54:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2024-11-27 19:54:35,803 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 113 [2024-11-27 19:54:35,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:35,804 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2024-11-27 19:54:35,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:35,804 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2024-11-27 19:54:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-27 19:54:35,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:35,807 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:35,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-27 19:54:36,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:36,008 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:36,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1516311256, now seen corresponding path program 1 times [2024-11-27 19:54:36,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:36,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081056650] [2024-11-27 19:54:36,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:36,010 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 [2024-11-27 19:54:36,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:54:36,017 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:54:36,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-27 19:54:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:36,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:54:36,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:36,888 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:36,889 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:36,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:36,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081056650] [2024-11-27 19:54:36,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081056650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:36,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:36,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:54:36,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812661230] [2024-11-27 19:54:36,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:36,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:36,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:36,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:36,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:36,894 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:37,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:37,426 INFO L93 Difference]: Finished difference Result 202 states and 287 transitions. [2024-11-27 19:54:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:54:37,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-27 19:54:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:37,437 INFO L225 Difference]: With dead ends: 202 [2024-11-27 19:54:37,437 INFO L226 Difference]: Without dead ends: 104 [2024-11-27 19:54:37,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:37,439 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:37,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 630 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:54:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-27 19:54:37,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-27 19:54:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:54:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 145 transitions. [2024-11-27 19:54:37,459 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 145 transitions. Word has length 113 [2024-11-27 19:54:37,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:37,459 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 145 transitions. [2024-11-27 19:54:37,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:37,460 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 145 transitions. [2024-11-27 19:54:37,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-27 19:54:37,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:37,462 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:37,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-27 19:54:37,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:37,663 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:37,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:37,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1003648678, now seen corresponding path program 1 times [2024-11-27 19:54:37,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:37,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097960761] [2024-11-27 19:54:37,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:37,667 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 [2024-11-27 19:54:37,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:54:37,670 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:54:37,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (6)] Waiting until timeout for monitored process [2024-11-27 19:54:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:38,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:54:38,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:54:38,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:38,580 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:38,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097960761] [2024-11-27 19:54:38,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097960761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:38,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:38,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:54:38,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913029352] [2024-11-27 19:54:38,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:38,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:54:38,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:38,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:54:38,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:54:38,582 INFO L87 Difference]: Start difference. First operand 103 states and 145 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:39,080 INFO L93 Difference]: Finished difference Result 206 states and 291 transitions. [2024-11-27 19:54:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:54:39,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-27 19:54:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:39,087 INFO L225 Difference]: With dead ends: 206 [2024-11-27 19:54:39,087 INFO L226 Difference]: Without dead ends: 106 [2024-11-27 19:54:39,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:54:39,089 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:39,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 749 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:54:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-27 19:54:39,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-27 19:54:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3516483516483517) internal successors, (123), 91 states have internal predecessors, (123), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:54:39,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions. [2024-11-27 19:54:39,101 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 113 [2024-11-27 19:54:39,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:39,102 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 147 transitions. [2024-11-27 19:54:39,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:54:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions. [2024-11-27 19:54:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-27 19:54:39,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:39,105 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:39,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (6)] Forceful destruction successful, exit code 0 [2024-11-27 19:54:39,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:39,306 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:39,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:39,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1001801636, now seen corresponding path program 1 times [2024-11-27 19:54:39,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:39,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976328341] [2024-11-27 19:54:39,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:39,307 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 [2024-11-27 19:54:39,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:54:39,309 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:54:39,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-27 19:54:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:40,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:54:40,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:40,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:54:40,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-27 19:54:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-27 19:54:40,490 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:40,490 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:40,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976328341] [2024-11-27 19:54:40,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976328341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:40,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:40,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:54:40,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986602653] [2024-11-27 19:54:40,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:40,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:40,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:40,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:40,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:40,492 INFO L87 Difference]: Start difference. First operand 105 states and 147 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:42,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:54:45,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:54:49,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:54:50,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:50,348 INFO L93 Difference]: Finished difference Result 208 states and 292 transitions. [2024-11-27 19:54:50,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:54:50,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-27 19:54:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:50,351 INFO L225 Difference]: With dead ends: 208 [2024-11-27 19:54:50,351 INFO L226 Difference]: Without dead ends: 106 [2024-11-27 19:54:50,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:54:50,353 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 117 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:50,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 393 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-27 19:54:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-27 19:54:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-27 19:54:50,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:54:50,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 146 transitions. [2024-11-27 19:54:50,365 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 146 transitions. Word has length 113 [2024-11-27 19:54:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:50,365 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 146 transitions. [2024-11-27 19:54:50,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 146 transitions. [2024-11-27 19:54:50,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-27 19:54:50,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:50,368 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:50,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-27 19:54:50,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:50,568 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:50,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:50,569 INFO L85 PathProgramCache]: Analyzing trace with hash -766924584, now seen corresponding path program 1 times [2024-11-27 19:54:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:50,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786556665] [2024-11-27 19:54:50,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:50,570 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 [2024-11-27 19:54:50,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:54:50,572 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:54:50,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (8)] Waiting until timeout for monitored process [2024-11-27 19:54:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:51,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:54:51,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:51,416 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 19:54:51,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:51,417 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786556665] [2024-11-27 19:54:51,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786556665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:51,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:51,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:54:51,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672416458] [2024-11-27 19:54:51,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:51,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:51,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:51,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:51,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:51,424 INFO L87 Difference]: Start difference. First operand 105 states and 146 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 19:54:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:51,858 INFO L93 Difference]: Finished difference Result 211 states and 294 transitions. [2024-11-27 19:54:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:54:51,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 115 [2024-11-27 19:54:51,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:51,860 INFO L225 Difference]: With dead ends: 211 [2024-11-27 19:54:51,861 INFO L226 Difference]: Without dead ends: 107 [2024-11-27 19:54:51,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:54:51,862 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:51,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 569 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:54:51,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-27 19:54:51,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-27 19:54:51,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3296703296703296) internal successors, (121), 91 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:54:51,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2024-11-27 19:54:51,874 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 115 [2024-11-27 19:54:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:51,874 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2024-11-27 19:54:51,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 19:54:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2024-11-27 19:54:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-27 19:54:51,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:51,877 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:51,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (8)] Forceful destruction successful, exit code 0 [2024-11-27 19:54:52,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:54:52,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:52,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:52,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2091780778, now seen corresponding path program 1 times [2024-11-27 19:54:52,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:52,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592557651] [2024-11-27 19:54:52,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:52,079 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 [2024-11-27 19:54:52,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:54:52,081 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:54:52,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (9)] Waiting until timeout for monitored process [2024-11-27 19:54:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:52,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:54:52,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:53,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:54:53,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-27 19:54:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 19:54:53,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:53,316 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:53,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592557651] [2024-11-27 19:54:53,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592557651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:53,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:53,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:54:53,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139792132] [2024-11-27 19:54:53,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:53,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:53,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:53,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:53,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:53,319 INFO L87 Difference]: Start difference. First operand 105 states and 145 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:54:58,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:02,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:06,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:06,860 INFO L93 Difference]: Finished difference Result 208 states and 288 transitions. [2024-11-27 19:55:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:55:06,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-27 19:55:06,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:06,863 INFO L225 Difference]: With dead ends: 208 [2024-11-27 19:55:06,863 INFO L226 Difference]: Without dead ends: 106 [2024-11-27 19:55:06,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:55:06,865 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 106 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:06,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 385 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2024-11-27 19:55:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-27 19:55:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-27 19:55:06,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3186813186813187) internal successors, (120), 91 states have internal predecessors, (120), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:55:06,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2024-11-27 19:55:06,886 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 115 [2024-11-27 19:55:06,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:06,887 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2024-11-27 19:55:06,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:55:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2024-11-27 19:55:06,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-27 19:55:06,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:06,892 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:06,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (9)] Ended with exit code 0 [2024-11-27 19:55:07,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:55:07,093 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:07,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:07,094 INFO L85 PathProgramCache]: Analyzing trace with hash 713823132, now seen corresponding path program 1 times [2024-11-27 19:55:07,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:55:07,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152216913] [2024-11-27 19:55:07,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:07,095 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 [2024-11-27 19:55:07,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:55:07,097 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:55:07,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (10)] Waiting until timeout for monitored process [2024-11-27 19:55:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:07,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:55:07,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:08,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:55:08,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-27 19:55:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-27 19:55:08,446 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:55:08,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:55:08,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152216913] [2024-11-27 19:55:08,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152216913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:08,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:08,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:55:08,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110971624] [2024-11-27 19:55:08,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:08,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:55:08,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:55:08,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:55:08,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:55:08,452 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:55:09,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:13,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:18,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:18,504 INFO L93 Difference]: Finished difference Result 207 states and 285 transitions. [2024-11-27 19:55:18,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:55:18,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-11-27 19:55:18,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:18,506 INFO L225 Difference]: With dead ends: 207 [2024-11-27 19:55:18,506 INFO L226 Difference]: Without dead ends: 105 [2024-11-27 19:55:18,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:55:18,508 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 98 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:18,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 381 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2024-11-27 19:55:18,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-27 19:55:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2024-11-27 19:55:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 89 states have (on average 1.3146067415730338) internal successors, (117), 89 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:55:18,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 141 transitions. [2024-11-27 19:55:18,519 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 141 transitions. Word has length 117 [2024-11-27 19:55:18,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:18,519 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 141 transitions. [2024-11-27 19:55:18,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:55:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 141 transitions. [2024-11-27 19:55:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-27 19:55:18,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:18,522 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:18,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (10)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:18,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:55:18,723 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:18,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash 899307348, now seen corresponding path program 1 times [2024-11-27 19:55:18,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:55:18,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041507191] [2024-11-27 19:55:18,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:18,725 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 [2024-11-27 19:55:18,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:55:18,730 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:55:18,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (11)] Waiting until timeout for monitored process [2024-11-27 19:55:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:19,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 19:55:19,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:20,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:55:20,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 172 treesize of output 64 [2024-11-27 19:55:20,348 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 140 proven. 24 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-27 19:55:20,349 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:55:20,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:55:20,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 1 [2024-11-27 19:55:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 19:55:21,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:55:21,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041507191] [2024-11-27 19:55:21,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041507191] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:55:21,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:55:21,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-27 19:55:21,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140424914] [2024-11-27 19:55:21,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:55:21,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:55:21,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:55:21,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:55:21,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:55:21,007 INFO L87 Difference]: Start difference. First operand 103 states and 141 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-27 19:55:22,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:23,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:28,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:31,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:35,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:36,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:36,956 INFO L93 Difference]: Finished difference Result 216 states and 294 transitions. [2024-11-27 19:55:36,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:55:36,957 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 119 [2024-11-27 19:55:36,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:36,958 INFO L225 Difference]: With dead ends: 216 [2024-11-27 19:55:36,959 INFO L226 Difference]: Without dead ends: 105 [2024-11-27 19:55:36,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-27 19:55:36,960 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 104 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:36,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 563 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 15.2s Time] [2024-11-27 19:55:36,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-27 19:55:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2024-11-27 19:55:36,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 89 states have internal predecessors, (115), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:55:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 139 transitions. [2024-11-27 19:55:36,974 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 139 transitions. Word has length 119 [2024-11-27 19:55:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:36,976 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 139 transitions. [2024-11-27 19:55:36,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-27 19:55:36,976 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 139 transitions. [2024-11-27 19:55:36,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-27 19:55:36,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:36,981 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:37,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (11)] Ended with exit code 0 [2024-11-27 19:55:37,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:55:37,182 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:37,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:37,182 INFO L85 PathProgramCache]: Analyzing trace with hash -54632810, now seen corresponding path program 1 times [2024-11-27 19:55:37,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:55:37,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902225134] [2024-11-27 19:55:37,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:37,183 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 [2024-11-27 19:55:37,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:55:37,189 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:55:37,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (12)] Waiting until timeout for monitored process [2024-11-27 19:55:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:37,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:55:37,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:38,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:55:38,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-27 19:55:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-27 19:55:38,564 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:55:38,564 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:55:38,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902225134] [2024-11-27 19:55:38,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902225134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:38,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:38,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:55:38,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696868631] [2024-11-27 19:55:38,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:38,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:55:38,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:55:38,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:55:38,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:55:38,566 INFO L87 Difference]: Start difference. First operand 103 states and 139 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:55:40,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:43,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:48,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:55:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:48,674 INFO L93 Difference]: Finished difference Result 204 states and 276 transitions. [2024-11-27 19:55:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:55:48,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-27 19:55:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:48,676 INFO L225 Difference]: With dead ends: 204 [2024-11-27 19:55:48,676 INFO L226 Difference]: Without dead ends: 104 [2024-11-27 19:55:48,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:55:48,677 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 86 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:48,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 367 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-27 19:55:48,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-27 19:55:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-27 19:55:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 89 states have internal predecessors, (114), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:55:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 138 transitions. [2024-11-27 19:55:48,683 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 138 transitions. Word has length 119 [2024-11-27 19:55:48,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:48,684 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 138 transitions. [2024-11-27 19:55:48,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 19:55:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 138 transitions. [2024-11-27 19:55:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 19:55:48,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:48,685 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:48,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (12)] Ended with exit code 0 [2024-11-27 19:55:48,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:55:48,886 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:48,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:48,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1186045660, now seen corresponding path program 1 times [2024-11-27 19:55:48,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:55:48,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542203706] [2024-11-27 19:55:48,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:48,887 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 [2024-11-27 19:55:48,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:55:48,889 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:55:48,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (13)] Waiting until timeout for monitored process [2024-11-27 19:55:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:49,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 19:55:49,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:49,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 19:55:49,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 19:55:49,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2024-11-27 19:55:50,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2024-11-27 19:55:50,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2024-11-27 19:55:54,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:55:54,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 61 [2024-11-27 19:56:03,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:56:03,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 67 [2024-11-27 19:56:04,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:56:04,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 67 [2024-11-27 19:56:05,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:56:05,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 66 [2024-11-27 19:56:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 169 proven. 30 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-27 19:56:05,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:56:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:56:18,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:56:18,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542203706] [2024-11-27 19:56:18,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542203706] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 19:56:18,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:56:18,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-11-27 19:56:18,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095989027] [2024-11-27 19:56:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:18,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:56:18,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:56:18,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:56:18,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=113, Unknown=6, NotChecked=0, Total=156 [2024-11-27 19:56:18,083 INFO L87 Difference]: Start difference. First operand 103 states and 138 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:56:34,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:56:36,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:56:40,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:56:44,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:56:47,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:56:48,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:48,110 INFO L93 Difference]: Finished difference Result 250 states and 335 transitions. [2024-11-27 19:56:48,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:56:48,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-27 19:56:48,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:48,114 INFO L225 Difference]: With dead ends: 250 [2024-11-27 19:56:48,114 INFO L226 Difference]: Without dead ends: 150 [2024-11-27 19:56:48,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 36.8s TimeCoverageRelationStatistics Valid=43, Invalid=130, Unknown=9, NotChecked=0, Total=182 [2024-11-27 19:56:48,116 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 102 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:48,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 277 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 109 Invalid, 2 Unknown, 0 Unchecked, 18.0s Time] [2024-11-27 19:56:48,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-27 19:56:48,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 105. [2024-11-27 19:56:48,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:56:48,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2024-11-27 19:56:48,125 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 140 transitions. Word has length 121 [2024-11-27 19:56:48,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:48,126 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 140 transitions. [2024-11-27 19:56:48,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:56:48,126 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 140 transitions. [2024-11-27 19:56:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 19:56:48,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:48,128 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:48,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (13)] Ended with exit code 0 [2024-11-27 19:56:48,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:56:48,329 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:48,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:48,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1608747486, now seen corresponding path program 1 times [2024-11-27 19:56:48,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:56:48,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249374179] [2024-11-27 19:56:48,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:48,330 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 [2024-11-27 19:56:48,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:56:48,336 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:56:48,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (14)] Waiting until timeout for monitored process [2024-11-27 19:56:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:49,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 19:56:49,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:56:49,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:56:49,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2024-11-27 19:56:49,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:56:49,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 12 [2024-11-27 19:56:49,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-27 19:56:49,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:56:49,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 33 [2024-11-27 19:56:50,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:56:50,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-11-27 19:56:50,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:56:50,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 41 [2024-11-27 19:56:50,390 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:56:50,390 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:56:50,390 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:56:50,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249374179] [2024-11-27 19:56:50,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249374179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:50,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:50,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:56:50,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706126676] [2024-11-27 19:56:50,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:50,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:56:50,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:56:50,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:56:50,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:56:50,394 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:56:52,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:56:57,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:56:58,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:00,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:04,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:06,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:11,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:14,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:18,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:23,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:27,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:27,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:27,387 INFO L93 Difference]: Finished difference Result 358 states and 479 transitions. [2024-11-27 19:57:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:57:27,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-27 19:57:27,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:27,410 INFO L225 Difference]: With dead ends: 358 [2024-11-27 19:57:27,411 INFO L226 Difference]: Without dead ends: 256 [2024-11-27 19:57:27,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:57:27,412 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 199 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 41 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:27,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 514 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 332 Invalid, 5 Unknown, 0 Unchecked, 36.7s Time] [2024-11-27 19:57:27,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-27 19:57:27,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 173. [2024-11-27 19:57:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 146 states have internal predecessors, (184), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:57:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 232 transitions. [2024-11-27 19:57:27,435 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 232 transitions. Word has length 121 [2024-11-27 19:57:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:27,436 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 232 transitions. [2024-11-27 19:57:27,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:57:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 232 transitions. [2024-11-27 19:57:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-27 19:57:27,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:27,438 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:27,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (14)] Forceful destruction successful, exit code 0 [2024-11-27 19:57:27,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:57:27,639 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:27,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:27,640 INFO L85 PathProgramCache]: Analyzing trace with hash -135338314, now seen corresponding path program 1 times [2024-11-27 19:57:27,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:27,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093298461] [2024-11-27 19:57:27,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:27,640 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 [2024-11-27 19:57:27,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:57:27,644 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:57:27,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (15)] Waiting until timeout for monitored process [2024-11-27 19:57:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:28,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:57:28,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:57:28,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:57:28,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:57:28,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:57:28,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:57:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:57:28,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 42 [2024-11-27 19:57:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:57:29,837 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:29,837 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:29,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093298461] [2024-11-27 19:57:29,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093298461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:29,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:29,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:57:29,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932677537] [2024-11-27 19:57:29,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:29,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:57:29,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:29,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:57:29,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:57:29,841 INFO L87 Difference]: Start difference. First operand 173 states and 232 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:57:34,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:38,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:43,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:43,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:43,479 INFO L93 Difference]: Finished difference Result 336 states and 449 transitions. [2024-11-27 19:57:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:57:43,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-27 19:57:43,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:43,482 INFO L225 Difference]: With dead ends: 336 [2024-11-27 19:57:43,482 INFO L226 Difference]: Without dead ends: 221 [2024-11-27 19:57:43,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:57:43,484 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 115 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 27 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:43,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 492 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 151 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2024-11-27 19:57:43,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-27 19:57:43,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 187. [2024-11-27 19:57:43,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 159 states have (on average 1.251572327044025) internal successors, (199), 159 states have internal predecessors, (199), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:57:43,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 247 transitions. [2024-11-27 19:57:43,506 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 247 transitions. Word has length 123 [2024-11-27 19:57:43,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:43,507 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 247 transitions. [2024-11-27 19:57:43,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:57:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 247 transitions. [2024-11-27 19:57:43,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-27 19:57:43,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:43,522 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:43,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (15)] Ended with exit code 0 [2024-11-27 19:57:43,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:57:43,723 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:43,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:43,724 INFO L85 PathProgramCache]: Analyzing trace with hash -269351820, now seen corresponding path program 1 times [2024-11-27 19:57:43,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:43,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244773586] [2024-11-27 19:57:43,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:43,724 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 [2024-11-27 19:57:43,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:57:43,726 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:57:43,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (16)] Waiting until timeout for monitored process [2024-11-27 19:57:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:45,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 19:57:45,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:45,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 19:57:45,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 19:57:45,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-27 19:57:49,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:57:49,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2024-11-27 19:57:58,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:57:58,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 41 [2024-11-27 19:57:58,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:57:58,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 51 [2024-11-27 19:58:10,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:58:10,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-11-27 19:58:11,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:58:11,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 77 [2024-11-27 19:58:13,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:58:13,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 98 treesize of output 95 [2024-11-27 19:58:17,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:58:17,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 124 treesize of output 98 [2024-11-27 19:58:18,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:58:18,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 98 [2024-11-27 19:58:18,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:58:18,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 93 treesize of output 39 [2024-11-27 19:58:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 217 proven. 30 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-27 19:58:18,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:58:18,810 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:58:18,810 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:58:18,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244773586] [2024-11-27 19:58:18,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244773586] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 19:58:18,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:58:18,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-27 19:58:18,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143953846] [2024-11-27 19:58:18,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:18,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:58:18,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:58:18,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:58:18,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=225, Unknown=7, NotChecked=0, Total=306 [2024-11-27 19:58:18,812 INFO L87 Difference]: Start difference. First operand 187 states and 247 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:58:20,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:24,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:28,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:32,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:36,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:39,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:40,118 INFO L93 Difference]: Finished difference Result 338 states and 449 transitions. [2024-11-27 19:58:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:58:40,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-27 19:58:40,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:40,121 INFO L225 Difference]: With dead ends: 338 [2024-11-27 19:58:40,122 INFO L226 Difference]: Without dead ends: 235 [2024-11-27 19:58:40,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 29.9s TimeCoverageRelationStatistics Valid=79, Invalid=256, Unknown=7, NotChecked=0, Total=342 [2024-11-27 19:58:40,123 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 94 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:40,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 369 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 3 Unknown, 0 Unchecked, 21.2s Time] [2024-11-27 19:58:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-27 19:58:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 194. [2024-11-27 19:58:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 166 states have (on average 1.2469879518072289) internal successors, (207), 166 states have internal predecessors, (207), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:58:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 255 transitions. [2024-11-27 19:58:40,156 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 255 transitions. Word has length 123 [2024-11-27 19:58:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:40,157 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 255 transitions. [2024-11-27 19:58:40,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:58:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 255 transitions. [2024-11-27 19:58:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-27 19:58:40,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:40,159 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:40,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (16)] Ended with exit code 0 [2024-11-27 19:58:40,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:58:40,360 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:40,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:40,360 INFO L85 PathProgramCache]: Analyzing trace with hash -986909223, now seen corresponding path program 1 times [2024-11-27 19:58:40,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:58:40,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102912856] [2024-11-27 19:58:40,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:40,361 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 [2024-11-27 19:58:40,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:58:40,364 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:58:40,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (17)] Waiting until timeout for monitored process [2024-11-27 19:58:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:41,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:58:41,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:58:41,262 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:58:41,262 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:58:41,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102912856] [2024-11-27 19:58:41,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102912856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:41,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:58:41,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:58:41,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32735110] [2024-11-27 19:58:41,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:41,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:58:41,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:58:41,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:58:41,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:58:41,264 INFO L87 Difference]: Start difference. First operand 194 states and 255 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:58:44,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:48,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:52,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:53,415 INFO L93 Difference]: Finished difference Result 337 states and 443 transitions. [2024-11-27 19:58:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:58:53,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-27 19:58:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:53,418 INFO L225 Difference]: With dead ends: 337 [2024-11-27 19:58:53,418 INFO L226 Difference]: Without dead ends: 227 [2024-11-27 19:58:53,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:58:53,420 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 32 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:53,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 376 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-11-27 19:58:53,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-27 19:58:53,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 197. [2024-11-27 19:58:53,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 169 states have (on average 1.2485207100591715) internal successors, (211), 169 states have internal predecessors, (211), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:58:53,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 259 transitions. [2024-11-27 19:58:53,438 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 259 transitions. Word has length 123 [2024-11-27 19:58:53,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:53,439 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 259 transitions. [2024-11-27 19:58:53,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:58:53,439 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 259 transitions. [2024-11-27 19:58:53,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-27 19:58:53,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:53,441 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:53,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (17)] Forceful destruction successful, exit code 0 [2024-11-27 19:58:53,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:58:53,642 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:53,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:53,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1998026473, now seen corresponding path program 1 times [2024-11-27 19:58:53,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:58:53,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641991481] [2024-11-27 19:58:53,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:53,643 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 [2024-11-27 19:58:53,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:58:53,645 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:58:53,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (18)] Waiting until timeout for monitored process [2024-11-27 19:58:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:54,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:58:54,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:58:54,246 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:58:54,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:58:54,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641991481] [2024-11-27 19:58:54,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641991481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:54,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:58:54,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:58:54,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131677197] [2024-11-27 19:58:54,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:54,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:58:54,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:58:54,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:58:54,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:58:54,248 INFO L87 Difference]: Start difference. First operand 197 states and 259 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:58:57,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:58:57,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:57,971 INFO L93 Difference]: Finished difference Result 313 states and 414 transitions. [2024-11-27 19:58:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:58:57,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-27 19:58:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:57,975 INFO L225 Difference]: With dead ends: 313 [2024-11-27 19:58:57,975 INFO L226 Difference]: Without dead ends: 200 [2024-11-27 19:58:57,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:58:57,979 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:57,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-27 19:58:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-27 19:58:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-27 19:58:58,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 172 states have (on average 1.244186046511628) internal successors, (214), 172 states have internal predecessors, (214), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:58:58,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 262 transitions. [2024-11-27 19:58:58,008 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 262 transitions. Word has length 123 [2024-11-27 19:58:58,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:58,009 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 262 transitions. [2024-11-27 19:58:58,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:58:58,009 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 262 transitions. [2024-11-27 19:58:58,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-27 19:58:58,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:58,010 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:58,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (18)] Ended with exit code 0 [2024-11-27 19:58:58,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:58:58,211 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:58,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash -341578651, now seen corresponding path program 1 times [2024-11-27 19:58:58,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:58:58,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063574476] [2024-11-27 19:58:58,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:58,213 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 [2024-11-27 19:58:58,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:58:58,215 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:58:58,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (19)] Waiting until timeout for monitored process [2024-11-27 19:58:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:58,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:58:58,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:58:58,799 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:58:58,799 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:58:58,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063574476] [2024-11-27 19:58:58,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063574476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:58,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:58:58,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:58:58,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284740865] [2024-11-27 19:58:58,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:58,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:58:58,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:58:58,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:58:58,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:58:58,802 INFO L87 Difference]: Start difference. First operand 200 states and 262 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:58:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:58,901 INFO L93 Difference]: Finished difference Result 319 states and 420 transitions. [2024-11-27 19:58:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:58:58,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-27 19:58:58,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:58,909 INFO L225 Difference]: With dead ends: 319 [2024-11-27 19:58:58,909 INFO L226 Difference]: Without dead ends: 203 [2024-11-27 19:58:58,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:58:58,911 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:58,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 498 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:58:58,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-27 19:58:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-27 19:58:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 175 states have (on average 1.24) internal successors, (217), 175 states have internal predecessors, (217), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:58:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 265 transitions. [2024-11-27 19:58:58,935 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 265 transitions. Word has length 124 [2024-11-27 19:58:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:58,935 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 265 transitions. [2024-11-27 19:58:58,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:58:58,936 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 265 transitions. [2024-11-27 19:58:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 19:58:58,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:58,937 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:58,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (19)] Ended with exit code 0 [2024-11-27 19:58:59,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:58:59,138 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:59,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:59,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1517869044, now seen corresponding path program 1 times [2024-11-27 19:58:59,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:58:59,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247398725] [2024-11-27 19:58:59,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:59,139 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 [2024-11-27 19:58:59,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:58:59,141 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:58:59,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (20)] Waiting until timeout for monitored process [2024-11-27 19:58:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:59,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:58:59,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:59,872 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:58:59,872 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:58:59,873 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:58:59,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247398725] [2024-11-27 19:58:59,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247398725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:59,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:58:59,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:58:59,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270524205] [2024-11-27 19:58:59,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:59,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:58:59,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:58:59,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:58:59,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:58:59,876 INFO L87 Difference]: Start difference. First operand 203 states and 265 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:59:01,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:59:03,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:59:03,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:03,246 INFO L93 Difference]: Finished difference Result 360 states and 469 transitions. [2024-11-27 19:59:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:59:03,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2024-11-27 19:59:03,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:03,249 INFO L225 Difference]: With dead ends: 360 [2024-11-27 19:59:03,249 INFO L226 Difference]: Without dead ends: 240 [2024-11-27 19:59:03,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:59:03,250 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 36 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:03,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 389 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 19:59:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-27 19:59:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 202. [2024-11-27 19:59:03,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 174 states have (on average 1.2298850574712643) internal successors, (214), 174 states have internal predecessors, (214), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 19:59:03,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 262 transitions. [2024-11-27 19:59:03,279 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 262 transitions. Word has length 126 [2024-11-27 19:59:03,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:59:03,280 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 262 transitions. [2024-11-27 19:59:03,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:59:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 262 transitions. [2024-11-27 19:59:03,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 19:59:03,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:59:03,281 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:59:03,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (20)] Ended with exit code 0 [2024-11-27 19:59:03,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 19:59:03,482 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:59:03,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:59:03,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1650381472, now seen corresponding path program 1 times [2024-11-27 19:59:03,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:59:03,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55710983] [2024-11-27 19:59:03,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:59:03,483 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 [2024-11-27 19:59:03,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 19:59:03,484 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 19:59:03,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (21)] Waiting until timeout for monitored process [2024-11-27 19:59:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:04,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 19:59:04,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:59:04,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 19:59:04,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-27 19:59:04,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:04,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 48 [2024-11-27 19:59:09,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:09,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 74 [2024-11-27 19:59:18,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:18,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 90 [2024-11-27 19:59:31,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:31,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 103 [2024-11-27 19:59:48,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:48,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 101 treesize of output 106 [2024-11-27 19:59:49,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:49,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 101 treesize of output 106 [2024-11-27 19:59:51,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:51,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 96 treesize of output 105 [2024-11-27 19:59:51,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:51,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 122 treesize of output 105 [2024-11-27 19:59:51,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:59:51,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 100 treesize of output 105 [2024-11-27 19:59:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 189 proven. 30 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-27 19:59:51,973 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:59:52,426 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 19:59:52,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:59:52,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55710983] [2024-11-27 19:59:52,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55710983] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 19:59:52,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:59:52,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 16 [2024-11-27 19:59:52,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191523575] [2024-11-27 19:59:52,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:59:52,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:59:52,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:59:52,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:59:52,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=169, Unknown=10, NotChecked=0, Total=240 [2024-11-27 19:59:52,429 INFO L87 Difference]: Start difference. First operand 202 states and 262 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 19:59:56,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:01,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:03,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:03,933 INFO L93 Difference]: Finished difference Result 353 states and 456 transitions. [2024-11-27 20:00:03,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:00:03,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2024-11-27 20:00:03,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:03,936 INFO L225 Difference]: With dead ends: 353 [2024-11-27 20:00:03,936 INFO L226 Difference]: Without dead ends: 232 [2024-11-27 20:00:03,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 41.5s TimeCoverageRelationStatistics Valid=67, Invalid=195, Unknown=10, NotChecked=0, Total=272 [2024-11-27 20:00:03,937 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 74 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:03,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 286 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2024-11-27 20:00:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-27 20:00:03,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2024-11-27 20:00:03,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 174 states have (on average 1.2183908045977012) internal successors, (212), 174 states have internal predecessors, (212), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 20:00:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 260 transitions. [2024-11-27 20:00:03,958 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 260 transitions. Word has length 126 [2024-11-27 20:00:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:03,959 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 260 transitions. [2024-11-27 20:00:03,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:00:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 260 transitions. [2024-11-27 20:00:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 20:00:03,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:03,961 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:03,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (21)] Ended with exit code 0 [2024-11-27 20:00:04,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:00:04,162 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:04,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1903586533, now seen corresponding path program 1 times [2024-11-27 20:00:04,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:00:04,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734288485] [2024-11-27 20:00:04,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:04,163 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 [2024-11-27 20:00:04,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:00:04,166 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:00:04,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (22)] Waiting until timeout for monitored process [2024-11-27 20:00:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:05,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:00:05,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:00:05,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:00:05,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:00:05,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:00:05,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2024-11-27 20:00:05,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:00:05,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 16 [2024-11-27 20:00:05,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-27 20:00:05,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 15 [2024-11-27 20:00:05,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-27 20:00:05,815 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:00:05,815 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:00:05,815 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:00:05,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734288485] [2024-11-27 20:00:05,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734288485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:00:05,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:00:05,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:00:05,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011435907] [2024-11-27 20:00:05,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:00:05,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:00:05,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:00:05,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:00:05,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:00:05,817 INFO L87 Difference]: Start difference. First operand 202 states and 260 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:00:08,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:13,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:14,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:18,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:24,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:28,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:29,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:29,305 INFO L93 Difference]: Finished difference Result 496 states and 634 transitions. [2024-11-27 20:00:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:00:29,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2024-11-27 20:00:29,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:29,308 INFO L225 Difference]: With dead ends: 496 [2024-11-27 20:00:29,308 INFO L226 Difference]: Without dead ends: 373 [2024-11-27 20:00:29,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:00:29,310 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 270 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 39 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:29,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 626 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 443 Invalid, 2 Unknown, 0 Unchecked, 23.2s Time] [2024-11-27 20:00:29,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-27 20:00:29,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 311. [2024-11-27 20:00:29,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 269 states have (on average 1.2156133828996283) internal successors, (327), 269 states have internal predecessors, (327), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:00:29,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 399 transitions. [2024-11-27 20:00:29,343 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 399 transitions. Word has length 126 [2024-11-27 20:00:29,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:29,343 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 399 transitions. [2024-11-27 20:00:29,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:00:29,343 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 399 transitions. [2024-11-27 20:00:29,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-27 20:00:29,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:29,347 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:29,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (22)] Ended with exit code 0 [2024-11-27 20:00:29,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:00:29,548 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:29,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:29,548 INFO L85 PathProgramCache]: Analyzing trace with hash 188016103, now seen corresponding path program 1 times [2024-11-27 20:00:29,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:00:29,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681155126] [2024-11-27 20:00:29,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:29,549 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 [2024-11-27 20:00:29,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:00:29,551 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:00:29,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (23)] Waiting until timeout for monitored process [2024-11-27 20:00:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:30,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:00:30,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:00:30,777 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:00:30,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 29 [2024-11-27 20:00:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:00:30,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:00:30,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:00:30,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681155126] [2024-11-27 20:00:30,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681155126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:00:30,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:00:30,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:00:30,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232740392] [2024-11-27 20:00:30,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:00:30,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:00:30,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:00:30,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:00:30,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:00:30,901 INFO L87 Difference]: Start difference. First operand 311 states and 399 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:00:33,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:00:34,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:36,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:38,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:00:42,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:00:47,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:00:51,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:00:58,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:01:02,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:01:06,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:01:10,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:01:13,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:01:13,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:01:13,576 INFO L93 Difference]: Finished difference Result 809 states and 1050 transitions. [2024-11-27 20:01:13,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:01:13,578 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-27 20:01:13,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:01:13,582 INFO L225 Difference]: With dead ends: 809 [2024-11-27 20:01:13,582 INFO L226 Difference]: Without dead ends: 586 [2024-11-27 20:01:13,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:01:13,585 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 197 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 22 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:01:13,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 738 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 691 Invalid, 4 Unknown, 0 Unchecked, 42.5s Time] [2024-11-27 20:01:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-11-27 20:01:13,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 326. [2024-11-27 20:01:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 284 states have (on average 1.2077464788732395) internal successors, (343), 284 states have internal predecessors, (343), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:01:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 415 transitions. [2024-11-27 20:01:13,632 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 415 transitions. Word has length 127 [2024-11-27 20:01:13,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:01:13,633 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 415 transitions. [2024-11-27 20:01:13,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:01:13,633 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 415 transitions. [2024-11-27 20:01:13,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:01:13,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:01:13,635 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:13,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (23)] Ended with exit code 0 [2024-11-27 20:01:13,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:01:13,836 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:01:13,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:13,837 INFO L85 PathProgramCache]: Analyzing trace with hash -633109046, now seen corresponding path program 1 times [2024-11-27 20:01:13,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:01:13,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014151062] [2024-11-27 20:01:13,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:13,838 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 [2024-11-27 20:01:13,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:01:13,840 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:01:13,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (24)] Waiting until timeout for monitored process [2024-11-27 20:01:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:14,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:01:14,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:01:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:01:15,237 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:01:15,237 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:01:15,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014151062] [2024-11-27 20:01:15,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014151062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:01:15,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:01:15,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:01:15,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349677902] [2024-11-27 20:01:15,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:01:15,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:01:15,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:01:15,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:01:15,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:01:15,239 INFO L87 Difference]: Start difference. First operand 326 states and 415 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:01:18,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:01:19,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:01:20,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:01:20,210 INFO L93 Difference]: Finished difference Result 650 states and 834 transitions. [2024-11-27 20:01:20,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:01:20,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-27 20:01:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:01:20,214 INFO L225 Difference]: With dead ends: 650 [2024-11-27 20:01:20,214 INFO L226 Difference]: Without dead ends: 416 [2024-11-27 20:01:20,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:01:20,216 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 52 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:01:20,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 665 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-27 20:01:20,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-27 20:01:20,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 336. [2024-11-27 20:01:20,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 294 states have (on average 1.2040816326530612) internal successors, (354), 294 states have internal predecessors, (354), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:01:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 426 transitions. [2024-11-27 20:01:20,267 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 426 transitions. Word has length 128 [2024-11-27 20:01:20,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:01:20,267 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 426 transitions. [2024-11-27 20:01:20,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-27 20:01:20,267 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 426 transitions. [2024-11-27 20:01:20,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:01:20,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:01:20,271 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:01:20,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (24)] Ended with exit code 0 [2024-11-27 20:01:20,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 20:01:20,471 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:01:20,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:01:20,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1972914508, now seen corresponding path program 1 times [2024-11-27 20:01:20,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:01:20,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604270493] [2024-11-27 20:01:20,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:01:20,473 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 [2024-11-27 20:01:20,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:01:20,478 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 20:01:20,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b7c130d-1c11-45e8-bd2b-159355bb3785/bin/uautomizer-verify-aQ6SnzHsRB/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 (25)] Waiting until timeout for monitored process