./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC --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 57a4c1dd1a0e1e63afb50ba676ccfd7082f02bfe1ee31d7489d2556da0377f27 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:53:52,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:53:52,467 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:53:52,473 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:53:52,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:53:52,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:53:52,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:53:52,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:53:52,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:53:52,501 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:53:52,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:53:52,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:53:52,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:53:52,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:53:52,502 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:53:52,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:53:52,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:53:52,503 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:53:52,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:53:52,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:53:52,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:53:52,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:53:52,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:53:52,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:53:52,504 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:53:52,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:53:52,504 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:53:52,504 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:53:52,505 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:53:52,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:53:52,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:53:52,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:53:52,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:53:52,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:53:52,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:53:52,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:53:52,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:53:52,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:53:52,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:53:52,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:53:52,507 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:53:52,507 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:53:52,507 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:53:52,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:53:52,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:53:52,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:53:52,508 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:53:52,508 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:53:52,508 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_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC 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 -> 57a4c1dd1a0e1e63afb50ba676ccfd7082f02bfe1ee31d7489d2556da0377f27 [2024-11-23 22:53:52,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:53:52,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:53:52,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:53:52,894 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:53:52,894 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:53:52,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i [2024-11-23 22:53:56,180 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data/d2f209f15/1613c1ce10dc404ca3962931d3e64b61/FLAG9b5571cd1 [2024-11-23 22:53:56,464 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:53:56,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i [2024-11-23 22:53:56,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data/d2f209f15/1613c1ce10dc404ca3962931d3e64b61/FLAG9b5571cd1 [2024-11-23 22:53:56,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data/d2f209f15/1613c1ce10dc404ca3962931d3e64b61 [2024-11-23 22:53:56,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:53:56,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:53:56,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:53:56,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:53:56,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:53:56,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343e97c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56, skipping insertion in model container [2024-11-23 22:53:56,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:53:56,674 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_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i[916,929] [2024-11-23 22:53:56,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:53:56,749 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:53:56,762 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_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i[916,929] [2024-11-23 22:53:56,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:53:56,861 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:53:56,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56 WrapperNode [2024-11-23 22:53:56,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:53:56,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:53:56,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:53:56,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:53:56,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,944 INFO L138 Inliner]: procedures = 30, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 412 [2024-11-23 22:53:56,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:53:56,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:53:56,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:53:56,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:53:56,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,965 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,972 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-23 22:53:56,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,991 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:56,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:57,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:57,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:57,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:57,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:53:57,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:53:57,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:53:57,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:53:57,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (1/1) ... [2024-11-23 22:53:57,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:53:57,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:53:57,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:53:57,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:53:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:53:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-23 22:53:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-23 22:53:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 22:53:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-23 22:53:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-23 22:53:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 22:53:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:53:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:53:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 22:53:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:53:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:53:57,253 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:53:57,255 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:53:58,093 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2024-11-23 22:53:58,093 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:53:58,108 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:53:58,108 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:53:58,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:58 BoogieIcfgContainer [2024-11-23 22:53:58,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:53:58,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:53:58,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:53:58,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:53:58,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:53:56" (1/3) ... [2024-11-23 22:53:58,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c2e60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:53:58, skipping insertion in model container [2024-11-23 22:53:58,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:56" (2/3) ... [2024-11-23 22:53:58,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c2e60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:53:58, skipping insertion in model container [2024-11-23 22:53:58,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:58" (3/3) ... [2024-11-23 22:53:58,121 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-35.i [2024-11-23 22:53:58,140 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:53:58,142 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-35.i that has 2 procedures, 101 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:53:58,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:53:58,269 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;@437f9577, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:53:58,269 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:53:58,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 80 states have (on average 1.375) internal successors, (110), 81 states have internal predecessors, (110), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:53:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 22:53:58,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:58,293 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:58,294 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:58,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:58,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1594498760, now seen corresponding path program 1 times [2024-11-23 22:53:58,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:58,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469406624] [2024-11-23 22:53:58,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:58,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-23 22:53:58,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:58,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469406624] [2024-11-23 22:53:58,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469406624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:53:58,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196902584] [2024-11-23 22:53:58,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:58,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:53:58,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:53:58,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:53:58,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:53:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:59,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:53:59,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:53:59,280 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-23 22:53:59,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:53:59,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196902584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:59,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:53:59,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 22:53:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159633778] [2024-11-23 22:53:59,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:59,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:53:59,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:59,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:53:59,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:53:59,319 INFO L87 Difference]: Start difference. First operand has 101 states, 80 states have (on average 1.375) internal successors, (110), 81 states have internal predecessors, (110), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:53:59,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:59,351 INFO L93 Difference]: Finished difference Result 195 states and 304 transitions. [2024-11-23 22:53:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:53:59,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2024-11-23 22:53:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:59,360 INFO L225 Difference]: With dead ends: 195 [2024-11-23 22:53:59,360 INFO L226 Difference]: Without dead ends: 97 [2024-11-23 22:53:59,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:53:59,367 INFO L435 NwaCegarLoop]: 138 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, 138 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 [2024-11-23 22:53:59,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:53:59,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-23 22:53:59,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-23 22:53:59,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 77 states have internal predecessors, (102), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:53:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2024-11-23 22:53:59,419 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 143 [2024-11-23 22:53:59,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:59,420 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2024-11-23 22:53:59,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:53:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2024-11-23 22:53:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 22:53:59,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:59,429 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:59,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:53:59,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 22:53:59,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:59,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:59,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1876003112, now seen corresponding path program 1 times [2024-11-23 22:53:59,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:59,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488130577] [2024-11-23 22:53:59,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:59,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:54:00,029 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:54:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:54:00,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 22:54:00,336 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:54:00,337 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:54:00,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:54:00,344 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 22:54:00,447 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:54:00,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:54:00 BoogieIcfgContainer [2024-11-23 22:54:00,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:54:00,455 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:54:00,455 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:54:00,455 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:54:00,458 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:58" (3/4) ... [2024-11-23 22:54:00,461 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:54:00,462 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:54:00,464 INFO L158 Benchmark]: Toolchain (without parser) took 3971.00ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 69.9MB in the end (delta: 23.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-11-23 22:54:00,464 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:54:00,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.76ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 76.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:54:00,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.75ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 72.9MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:54:00,465 INFO L158 Benchmark]: Boogie Preprocessor took 68.49ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 69.8MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:54:00,466 INFO L158 Benchmark]: RCFGBuilder took 1095.18ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 41.0MB in the end (delta: 28.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:54:00,466 INFO L158 Benchmark]: TraceAbstraction took 2342.27ms. Allocated memory is still 117.4MB. Free memory was 40.5MB in the beginning and 69.9MB in the end (delta: -29.4MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-11-23 22:54:00,467 INFO L158 Benchmark]: Witness Printer took 7.85ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 69.9MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:54:00,469 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.76ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 76.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.75ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 72.9MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.49ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 69.8MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1095.18ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 41.0MB in the end (delta: 28.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2342.27ms. Allocated memory is still 117.4MB. Free memory was 40.5MB in the beginning and 69.9MB in the end (delta: -29.4MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Witness Printer took 7.85ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 69.9MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryFLOATComparisonOperation at line 65, overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someUnaryDOUBLEoperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 63. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 4.8, 255.1, -0.6, -10, 1, -2, 10, 5, -1, 1, 0, 1, 5, 64, 5 }; [L57] unsigned char last_1_WrapperStruct00_var_1_18 = 5; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_18=5] [L127] isInitial = 1 [L128] FCALL initially() [L130] CALL updateLastVariables() [L120] EXPR WrapperStruct00.var_1_18 [L120] last_1_WrapperStruct00_var_1_18 = WrapperStruct00.var_1_18 [L130] RET updateLastVariables() [L131] CALL updateVariables() [L90] WrapperStruct00.var_1_4 = __VERIFIER_nondet_float() [L91] EXPR WrapperStruct00.var_1_4 [L91] EXPR WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F [L91] EXPR WrapperStruct00.var_1_4 [L91] EXPR WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L91] EXPR (WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L91] CALL assume_abort_if_not((WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L91] RET assume_abort_if_not((WrapperStruct00.var_1_4 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L92] WrapperStruct00.var_1_5 = __VERIFIER_nondet_float() [L93] EXPR WrapperStruct00.var_1_5 [L93] EXPR WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F [L93] EXPR WrapperStruct00.var_1_5 [L93] EXPR WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L93] EXPR (WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L93] CALL assume_abort_if_not((WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L93] RET assume_abort_if_not((WrapperStruct00.var_1_5 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L94] WrapperStruct00.var_1_8 = __VERIFIER_nondet_uchar() [L95] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L96] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L97] WrapperStruct00.var_1_12 = __VERIFIER_nondet_char() [L98] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L99] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L100] WrapperStruct00.var_1_13 = __VERIFIER_nondet_char() [L101] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= -31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= -31) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L102] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 31) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L103] WrapperStruct00.var_1_14 = __VERIFIER_nondet_char() [L104] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L105] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L106] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L107] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L108] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L109] WrapperStruct00.var_1_17 = __VERIFIER_nondet_uchar() [L110] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_17 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_17 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L111] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_17 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_17 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L112] WrapperStruct00.var_1_19 = __VERIFIER_nondet_uchar() [L113] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= 32) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L114] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 64) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L114] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 64) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L115] WrapperStruct00.var_1_20 = __VERIFIER_nondet_uchar() [L116] EXPR WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_20 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L116] RET assume_abort_if_not(WrapperStruct00.var_1_20 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L117] EXPR WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_20 <= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L117] RET assume_abort_if_not(WrapperStruct00.var_1_20 <= 32) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L131] RET updateVariables() [L132] CALL step() [L61] signed long int stepLocal_0 = ~ last_1_WrapperStruct00_var_1_18; VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5, stepLocal_0=-6] [L62] COND TRUE last_1_WrapperStruct00_var_1_18 >= stepLocal_0 [L63] EXPR WrapperStruct00.var_1_4 [L63] EXPR WrapperStruct00.var_1_5 [L63] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) [L65] EXPR WrapperStruct00.var_1_1 [L65] EXPR WrapperStruct00.var_1_5 [L65] EXPR WrapperStruct00.var_1_4 [L65] unsigned char stepLocal_1 = (WrapperStruct00.var_1_1 * WrapperStruct00.var_1_5) >= WrapperStruct00.var_1_4; [L66] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5, stepLocal_1=1] [L66] COND TRUE WrapperStruct00.var_1_17 && stepLocal_1 [L67] EXPR WrapperStruct00.var_1_19 [L67] EXPR WrapperStruct00.var_1_20 [L67] WrapperStruct00.var_1_18 = (2 + ((WrapperStruct00.var_1_19 - WrapperStruct00.var_1_20) + 32)) [L71] WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L71] COND FALSE !(WrapperStruct00.var_1_8) [L74] EXPR WrapperStruct00.var_1_17 [L74] WrapperStruct00.var_1_15 = (! WrapperStruct00.var_1_17) [L76] WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L76] COND FALSE !(WrapperStruct00.var_1_15) [L79] WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L79] COND FALSE !(WrapperStruct00.var_1_15) [L86] EXPR WrapperStruct00.var_1_11 [L86] WrapperStruct00.var_1_6 = WrapperStruct00.var_1_11 [L132] RET step() [L133] CALL, EXPR property() [L123] EXPR (last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1 [L123] EXPR WrapperStruct00.var_1_1 [L123] EXPR WrapperStruct00.var_1_4 [L123] EXPR WrapperStruct00.var_1_5 [L123] EXPR (last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L123] EXPR ((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L123] EXPR (((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11)))) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_11 == ((signed char) ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L123] EXPR ((((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11)))) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_11 == ((signed char) ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_8 ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_17)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L123] EXPR (((((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11)))) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_11 == ((signed char) ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_8 ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_17))))) && ((WrapperStruct00.var_1_17 && ((WrapperStruct00.var_1_1 * WrapperStruct00.var_1_5) >= WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_18 == ((unsigned char) (2 + ((WrapperStruct00.var_1_19 - WrapperStruct00.var_1_20) + 32)))) : (WrapperStruct00.var_1_18 == ((unsigned char) WrapperStruct00.var_1_19))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L123-L124] return (((((last_1_WrapperStruct00_var_1_18 >= (~ last_1_WrapperStruct00_var_1_18)) ? (WrapperStruct00.var_1_1 == ((float) (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5))) : 1) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_6 == ((signed short int) (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11)))) : (WrapperStruct00.var_1_6 == ((signed short int) WrapperStruct00.var_1_11)))) && (WrapperStruct00.var_1_15 ? (WrapperStruct00.var_1_11 == ((signed char) ((WrapperStruct00.var_1_12 + ((((10) < (WrapperStruct00.var_1_13)) ? (10) : (WrapperStruct00.var_1_13)))) + WrapperStruct00.var_1_14))) : 1)) && (WrapperStruct00.var_1_8 ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_17))))) && ((WrapperStruct00.var_1_17 && ((WrapperStruct00.var_1_1 * WrapperStruct00.var_1_5) >= WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_18 == ((unsigned char) (2 + ((WrapperStruct00.var_1_19 - WrapperStruct00.var_1_20) + 32)))) : (WrapperStruct00.var_1_18 == ((unsigned char) WrapperStruct00.var_1_19))) ; [L133] RET, EXPR property() [L133] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_18=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 138 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 508 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1190/1224 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 [2024-11-23 22:54:00,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC --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 57a4c1dd1a0e1e63afb50ba676ccfd7082f02bfe1ee31d7489d2556da0377f27 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:54:03,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:54:03,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 22:54:03,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:54:03,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:54:03,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:54:03,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:54:03,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:54:03,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:54:03,594 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:54:03,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:54:03,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:54:03,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:54:03,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:54:03,595 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:54:03,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:54:03,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:54:03,596 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:54:03,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:54:03,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:54:03,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:54:03,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:54:03,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:54:03,596 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:54:03,597 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:54:03,597 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:54:03,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:54:03,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:54:03,597 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:54:03,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:54:03,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:54:03,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:54:03,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:54:03,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:54:03,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:03,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:54:03,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:54:03,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:54:03,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:54:03,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:03,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:54:03,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:54:03,600 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_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC 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 -> 57a4c1dd1a0e1e63afb50ba676ccfd7082f02bfe1ee31d7489d2556da0377f27 [2024-11-23 22:54:03,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:54:03,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:54:03,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:54:03,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:54:03,973 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:54:03,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i [2024-11-23 22:54:07,140 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data/7b440e138/b6a00fa8f01d4b9fb266c2f206f35a82/FLAG4551b9d7e [2024-11-23 22:54:07,400 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:54:07,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i [2024-11-23 22:54:07,411 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data/7b440e138/b6a00fa8f01d4b9fb266c2f206f35a82/FLAG4551b9d7e [2024-11-23 22:54:07,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/data/7b440e138/b6a00fa8f01d4b9fb266c2f206f35a82 [2024-11-23 22:54:07,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:54:07,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:54:07,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:54:07,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:54:07,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:54:07,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:07,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23736329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07, skipping insertion in model container [2024-11-23 22:54:07,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:07,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:54:07,659 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_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i[916,929] [2024-11-23 22:54:07,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:54:07,784 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:54:07,798 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_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-35.i[916,929] [2024-11-23 22:54:07,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:54:07,938 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:54:07,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07 WrapperNode [2024-11-23 22:54:07,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:54:07,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:54:07,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:54:07,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:54:07,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:07,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,033 INFO L138 Inliner]: procedures = 34, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 408 [2024-11-23 22:54:08,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:54:08,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:54:08,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:54:08,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:54:08,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,094 INFO L175 MemorySlicer]: Split 119 memory accesses to 2 slices as follows [2, 117]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 35 writes are split as follows [0, 35]. [2024-11-23 22:54:08,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,138 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:54:08,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:54:08,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:54:08,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:54:08,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (1/1) ... [2024-11-23 22:54:08,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:08,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:08,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:54:08,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:54:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:54:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-23 22:54:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-23 22:54:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:54:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 22:54:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-23 22:54:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-23 22:54:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-23 22:54:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-23 22:54:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-23 22:54:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-23 22:54:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-23 22:54:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-23 22:54:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-23 22:54:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-23 22:54:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:54:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:54:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-23 22:54:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-23 22:54:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:54:08,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:54:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-23 22:54:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-23 22:54:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-23 22:54:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-23 22:54:08,498 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:54:08,500 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:54:09,925 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2024-11-23 22:54:09,925 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:54:09,939 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:54:09,943 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:54:09,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:09 BoogieIcfgContainer [2024-11-23 22:54:09,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:54:09,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:54:09,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:54:09,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:54:09,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:54:07" (1/3) ... [2024-11-23 22:54:09,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6614b9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:09, skipping insertion in model container [2024-11-23 22:54:09,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:07" (2/3) ... [2024-11-23 22:54:09,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6614b9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:09, skipping insertion in model container [2024-11-23 22:54:09,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:09" (3/3) ... [2024-11-23 22:54:09,957 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-35.i [2024-11-23 22:54:09,977 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:54:09,978 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-35.i that has 2 procedures, 101 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:54:10,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:54:10,060 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;@2e730339, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:54:10,061 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:54:10,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 80 states have (on average 1.375) internal successors, (110), 81 states have internal predecessors, (110), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:54:10,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 22:54:10,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:10,079 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:10,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:10,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:10,086 INFO L85 PathProgramCache]: Analyzing trace with hash 82601040, now seen corresponding path program 1 times [2024-11-23 22:54:10,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:10,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850755556] [2024-11-23 22:54:10,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:10,100 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 [2024-11-23 22:54:10,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:10,103 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 22:54:10,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:54:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:10,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:54:10,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-23 22:54:10,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:10,893 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:10,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850755556] [2024-11-23 22:54:10,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850755556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:10,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:10,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:54:10,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78182354] [2024-11-23 22:54:10,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:10,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:54:10,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:10,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:54:10,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:54:10,927 INFO L87 Difference]: Start difference. First operand has 101 states, 80 states have (on average 1.375) internal successors, (110), 81 states have internal predecessors, (110), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:10,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:10,964 INFO L93 Difference]: Finished difference Result 195 states and 304 transitions. [2024-11-23 22:54:10,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:54:10,967 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2024-11-23 22:54:10,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:10,975 INFO L225 Difference]: With dead ends: 195 [2024-11-23 22:54:10,975 INFO L226 Difference]: Without dead ends: 97 [2024-11-23 22:54:10,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:54:10,983 INFO L435 NwaCegarLoop]: 138 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, 138 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 [2024-11-23 22:54:10,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:11,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-23 22:54:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-23 22:54:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 77 states have internal predecessors, (102), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:54:11,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2024-11-23 22:54:11,038 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 143 [2024-11-23 22:54:11,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:11,039 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2024-11-23 22:54:11,039 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:54:11,040 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2024-11-23 22:54:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 22:54:11,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:11,047 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:11,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:54:11,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:54:11,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:11,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:11,251 INFO L85 PathProgramCache]: Analyzing trace with hash -198903312, now seen corresponding path program 1 times [2024-11-23 22:54:11,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:11,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922812232] [2024-11-23 22:54:11,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:11,254 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 [2024-11-23 22:54:11,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:11,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 22:54:11,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:54:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:11,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:54:11,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:12,041 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 19 treesize of output 1 [2024-11-23 22:54:12,170 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 [2024-11-23 22:54:12,262 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 [2024-11-23 22:54:12,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:12,586 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 41 treesize of output 28 [2024-11-23 22:54:12,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:12,872 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 37 treesize of output 28 [2024-11-23 22:54:12,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:12,924 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 43 treesize of output 39 [2024-11-23 22:54:13,074 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 97 treesize of output 73 [2024-11-23 22:54:13,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 22:54:13,090 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:13,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 107 [2024-11-23 22:54:13,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 45 [2024-11-23 22:54:13,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:13,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 58 treesize of output 22 [2024-11-23 22:54:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 335 proven. 18 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-23 22:54:13,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:54:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 22:54:14,112 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:54:14,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922812232] [2024-11-23 22:54:14,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922812232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:54:14,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:54:14,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2024-11-23 22:54:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229905628] [2024-11-23 22:54:14,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:54:14,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:54:14,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:54:14,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:54:14,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:54:14,117 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 15 states have internal predecessors, (82), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-23 22:54:24,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:24,039 INFO L93 Difference]: Finished difference Result 461 states and 642 transitions. [2024-11-23 22:54:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-23 22:54:24,040 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 15 states have internal predecessors, (82), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) Word has length 143 [2024-11-23 22:54:24,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:24,045 INFO L225 Difference]: With dead ends: 461 [2024-11-23 22:54:24,045 INFO L226 Difference]: Without dead ends: 367 [2024-11-23 22:54:24,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 272 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=396, Invalid=1410, Unknown=0, NotChecked=0, Total=1806 [2024-11-23 22:54:24,048 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 600 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:24,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 823 Invalid, 1729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [255 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-23 22:54:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-23 22:54:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 180. [2024-11-23 22:54:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 147 states have (on average 1.3265306122448979) internal successors, (195), 148 states have internal predecessors, (195), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 22:54:24,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 251 transitions. [2024-11-23 22:54:24,097 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 251 transitions. Word has length 143 [2024-11-23 22:54:24,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:24,098 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 251 transitions. [2024-11-23 22:54:24,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 15 states have internal predecessors, (82), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-23 22:54:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 251 transitions. [2024-11-23 22:54:24,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 22:54:24,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:24,101 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:24,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:54:24,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:54:24,302 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:24,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:24,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1887847054, now seen corresponding path program 1 times [2024-11-23 22:54:24,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:54:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753454709] [2024-11-23 22:54:24,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:24,304 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 [2024-11-23 22:54:24,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:54:24,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 22:54:24,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:54:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:24,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-23 22:54:24,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:25,061 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 19 treesize of output 1 [2024-11-23 22:54:25,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-23 22:54:26,646 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:26,647 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 140 treesize of output 67 [2024-11-23 22:54:27,214 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:27,214 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 135 treesize of output 77 [2024-11-23 22:54:28,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:28,082 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 150 treesize of output 80 [2024-11-23 22:54:28,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:28,761 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 145 treesize of output 90 [2024-11-23 22:54:29,685 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:29,686 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 155 treesize of output 103 [2024-11-23 22:54:30,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 106 [2024-11-23 22:54:34,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:34,077 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 187 treesize of output 135 [2024-11-23 22:54:35,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:35,540 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 197 treesize of output 148 [2024-11-23 22:54:37,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:54:37,424 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 280 treesize of output 187 [2024-11-23 22:54:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 534 proven. 24 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-23 22:54:48,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:07,614 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int#1| |c_~#WrapperStruct00~0.base|))) (let ((.cse4 (let ((.cse6 (select .cse0 (bvadd (_ bv4 32) |c_~#WrapperStruct00~0.offset|)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6)))) (.cse3 (let ((.cse5 (select .cse0 (bvadd (_ bv8 32) |c_~#WrapperStruct00~0.offset|)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (let ((.cse1 (fp.add c_currentRoundingMode .cse4 .cse3))) (and (or (not (= (_ bv0 8) ((_ extract 7 0) (select .cse0 (bvadd (_ bv21 32) |c_~#WrapperStruct00~0.offset|))))) (forall ((|v_skolemized_q#valueAsBitvector_26| (_ BitVec 32))) (not (= .cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_26|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_26|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_26|)))))) (forall ((|v_skolemized_q#valueAsBitvector_26| (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_26|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_26|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_26|)))) (or (not (= .cse1 .cse2)) (fp.geq (fp.mul c_currentRoundingMode .cse2 .cse3) .cse4)))))))) is different from false [2024-11-23 22:55:24,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:24,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753454709] [2024-11-23 22:55:24,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753454709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:55:24,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1098080118] [2024-11-23 22:55:24,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:24,790 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:55:24,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:55:24,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:55:24,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-23 22:55:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:26,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-23 22:55:27,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:30,827 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 1 [2024-11-23 22:55:46,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-23 22:56:05,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:05,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 63 [2024-11-23 22:56:11,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:11,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 71 [2024-11-23 22:56:23,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:23,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 120 treesize of output 74 [2024-11-23 22:56:30,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:30,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 120 treesize of output 74 [2024-11-23 22:56:38,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:38,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 82 [2024-11-23 22:56:51,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:51,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 85 [2024-11-23 22:57:00,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:00,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 85 [2024-11-23 22:57:09,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:09,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 85 [2024-11-23 22:57:19,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:19,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 188 treesize of output 121 [2024-11-23 22:57:49,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:49,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 198 treesize of output 143 [2024-11-23 22:58:01,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:58:01,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 206 treesize of output 154 [2024-11-23 22:58:21,586 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 22:58:21,586 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:58:21,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1098080118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:58:21,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:58:21,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [25] total 41 [2024-11-23 22:58:21,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829196832] [2024-11-23 22:58:21,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:58:21,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 22:58:21,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:58:21,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 22:58:21,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1640, Unknown=1, NotChecked=84, Total=1980 [2024-11-23 22:58:21,592 INFO L87 Difference]: Start difference. First operand 180 states and 251 transitions. Second operand has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 17 states have internal predecessors, (65), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 22:59:07,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:59:21,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:59:32,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:59:42,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:59:48,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:59:54,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:00:23,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:00:24,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:00:28,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:00:33,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:00:37,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:00:49,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:00:57,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:57,052 INFO L93 Difference]: Finished difference Result 705 states and 974 transitions. [2024-11-23 23:00:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 23:00:57,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 17 states have internal predecessors, (65), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 143 [2024-11-23 23:00:57,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:57,065 INFO L225 Difference]: With dead ends: 705 [2024-11-23 23:00:57,065 INFO L226 Difference]: Without dead ends: 528 [2024-11-23 23:00:57,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 267 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 138.0s TimeCoverageRelationStatistics Valid=331, Invalid=2122, Unknown=1, NotChecked=96, Total=2550 [2024-11-23 23:00:57,073 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 463 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 67 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:57,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 548 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1197 Invalid, 8 Unknown, 0 Unchecked, 117.0s Time] [2024-11-23 23:00:57,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-23 23:00:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 328. [2024-11-23 23:00:57,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 241 states have (on average 1.2531120331950207) internal successors, (302), 244 states have internal predecessors, (302), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 23:00:57,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 448 transitions. [2024-11-23 23:00:57,189 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 448 transitions. Word has length 143 [2024-11-23 23:00:57,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:57,190 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 448 transitions. [2024-11-23 23:00:57,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 17 states have internal predecessors, (65), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 23:00:57,191 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 448 transitions. [2024-11-23 23:00:57,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 23:00:57,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:57,195 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:57,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:00:57,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:00:57,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:00:57,597 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:57,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:57,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1984418416, now seen corresponding path program 1 times [2024-11-23 23:00:57,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:00:57,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912244365] [2024-11-23 23:00:57,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:57,599 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 [2024-11-23 23:00:57,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:00:57,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:00:57,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:01:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:11,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-23 23:01:11,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:01:12,345 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 19 treesize of output 1 [2024-11-23 23:01:18,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-23 23:01:28,676 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:01:28,677 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 140 treesize of output 67 [2024-11-23 23:01:34,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:01:34,105 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 135 treesize of output 77 [2024-11-23 23:01:42,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:01:42,823 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 145 treesize of output 90 [2024-11-23 23:01:51,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:01:51,762 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 155 treesize of output 103 [2024-11-23 23:02:02,160 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:02:02,160 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 165 treesize of output 116 [2024-11-23 23:02:14,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:02:14,351 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 175 treesize of output 129 [2024-11-23 23:02:27,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:02:27,275 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 185 treesize of output 142 [2024-11-23 23:02:41,254 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:02:41,255 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 195 treesize of output 155 [2024-11-23 23:02:57,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:02:57,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 278 treesize of output 194 [2024-11-23 23:03:09,392 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:03:09,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 298 treesize of output 208 [2024-11-23 23:03:21,421 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 347 treesize of output 271 [2024-11-23 23:03:21,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:03:21,631 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:03:21,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 271 treesize of output 315 [2024-11-23 23:03:34,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 176 [2024-11-23 23:03:48,047 WARN L286 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:04:07,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:04:07,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 623 treesize of output 380 [2024-11-23 23:04:22,631 WARN L286 SmtUtils]: Spent 5.79s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:04:28,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:04:28,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 773 treesize of output 317 [2024-11-23 23:04:34,575 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-23 23:04:34,576 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:04:34,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:04:34,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912244365] [2024-11-23 23:04:34,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912244365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:04:34,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:04:34,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-23 23:04:34,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702034777] [2024-11-23 23:04:34,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:34,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 23:04:34,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:04:34,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 23:04:34,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:04:34,578 INFO L87 Difference]: Start difference. First operand 328 states and 448 transitions. Second operand has 24 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 23 states have internal predecessors, (80), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-23 23:05:11,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:05:18,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:05:27,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:05:32,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:05:44,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:05:48,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:05:52,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:05:58,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:06:02,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:06:07,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:06:11,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:06:16,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:06:25,677 WARN L286 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 170 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:06:31,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:06:39,648 WARN L286 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 168 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:06:50,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:06:55,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:07:45,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:07:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:58,422 INFO L93 Difference]: Finished difference Result 941 states and 1287 transitions. [2024-11-23 23:07:58,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 23:07:58,424 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 23 states have internal predecessors, (80), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 143 [2024-11-23 23:07:58,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:58,430 INFO L225 Difference]: With dead ends: 941 [2024-11-23 23:07:58,430 INFO L226 Difference]: Without dead ends: 616 [2024-11-23 23:07:58,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 93.7s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2024-11-23 23:07:58,432 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 525 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 46 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:58,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1087 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1582 Invalid, 11 Unknown, 0 Unchecked, 164.8s Time] [2024-11-23 23:07:58,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-23 23:07:58,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 355. [2024-11-23 23:07:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 265 states have (on average 1.2528301886792452) internal successors, (332), 268 states have internal predecessors, (332), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 23:07:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 478 transitions. [2024-11-23 23:07:58,511 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 478 transitions. Word has length 143 [2024-11-23 23:07:58,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:58,512 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 478 transitions. [2024-11-23 23:07:58,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 23 states have internal predecessors, (80), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-23 23:07:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 478 transitions. [2024-11-23 23:07:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 23:07:58,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:58,516 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:58,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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)] Ended with exit code 0 [2024-11-23 23:07:58,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:07:58,716 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:58,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash 601681908, now seen corresponding path program 1 times [2024-11-23 23:07:58,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:07:58,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464402437] [2024-11-23 23:07:58,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:58,718 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 [2024-11-23 23:07:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:07:58,721 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:07:58,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:07:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:59,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:07:59,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:07:59,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:07:59,315 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:07:59,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464402437] [2024-11-23 23:07:59,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464402437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:59,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:59,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:07:59,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730821909] [2024-11-23 23:07:59,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:59,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:07:59,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:07:59,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:07:59,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:07:59,317 INFO L87 Difference]: Start difference. First operand 355 states and 478 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:00,133 INFO L93 Difference]: Finished difference Result 707 states and 953 transitions. [2024-11-23 23:08:00,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:08:00,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-23 23:08:00,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:00,143 INFO L225 Difference]: With dead ends: 707 [2024-11-23 23:08:00,144 INFO L226 Difference]: Without dead ends: 355 [2024-11-23 23:08:00,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:00,146 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:00,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:08:00,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-23 23:08:00,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2024-11-23 23:08:00,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 265 states have (on average 1.2452830188679245) internal successors, (330), 268 states have internal predecessors, (330), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 23:08:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 476 transitions. [2024-11-23 23:08:00,225 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 476 transitions. Word has length 143 [2024-11-23 23:08:00,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:00,226 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 476 transitions. [2024-11-23 23:08:00,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 476 transitions. [2024-11-23 23:08:00,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 23:08:00,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:00,229 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:00,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:00,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:00,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:00,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1459068276, now seen corresponding path program 1 times [2024-11-23 23:08:00,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:08:00,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423102944] [2024-11-23 23:08:00,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:00,431 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 [2024-11-23 23:08:00,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:08:00,433 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:08:00,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:00,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:08:00,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:01,383 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-23 23:08:01,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:08:01,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:08:01,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423102944] [2024-11-23 23:08:01,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423102944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:01,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:01,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:08:01,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800254728] [2024-11-23 23:08:01,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:01,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:08:01,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:08:01,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:08:01,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:08:01,386 INFO L87 Difference]: Start difference. First operand 355 states and 476 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:08:02,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:02,271 INFO L93 Difference]: Finished difference Result 711 states and 955 transitions. [2024-11-23 23:08:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:08:02,272 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2024-11-23 23:08:02,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:02,275 INFO L225 Difference]: With dead ends: 711 [2024-11-23 23:08:02,275 INFO L226 Difference]: Without dead ends: 359 [2024-11-23 23:08:02,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:08:02,277 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:02,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:08:02,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-23 23:08:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-23 23:08:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 269 states have (on average 1.2342007434944238) internal successors, (332), 272 states have internal predecessors, (332), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 23:08:02,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 478 transitions. [2024-11-23 23:08:02,335 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 478 transitions. Word has length 143 [2024-11-23 23:08:02,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:02,335 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 478 transitions. [2024-11-23 23:08:02,335 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:08:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 478 transitions. [2024-11-23 23:08:02,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 23:08:02,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:02,338 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:02,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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)] Ended with exit code 0 [2024-11-23 23:08:02,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:02,538 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:02,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:02,539 INFO L85 PathProgramCache]: Analyzing trace with hash 271237040, now seen corresponding path program 1 times [2024-11-23 23:08:02,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:08:02,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993259415] [2024-11-23 23:08:02,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:02,539 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 [2024-11-23 23:08:02,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:08:02,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:08:02,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:02,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:08:02,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:03,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:08:03,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:08:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993259415] [2024-11-23 23:08:03,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993259415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:03,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:03,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:08:03,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875892812] [2024-11-23 23:08:03,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:03,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:08:03,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:08:03,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:08:03,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:08:03,454 INFO L87 Difference]: Start difference. First operand 359 states and 478 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:04,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:04,224 INFO L93 Difference]: Finished difference Result 715 states and 953 transitions. [2024-11-23 23:08:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:08:04,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-23 23:08:04,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:04,228 INFO L225 Difference]: With dead ends: 715 [2024-11-23 23:08:04,228 INFO L226 Difference]: Without dead ends: 359 [2024-11-23 23:08:04,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:08:04,230 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:04,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 398 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:08:04,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-23 23:08:04,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-23 23:08:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 269 states have (on average 1.2267657992565055) internal successors, (330), 272 states have internal predecessors, (330), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 23:08:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 476 transitions. [2024-11-23 23:08:04,303 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 476 transitions. Word has length 143 [2024-11-23 23:08:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:04,304 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 476 transitions. [2024-11-23 23:08:04,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 476 transitions. [2024-11-23 23:08:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-23 23:08:04,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:04,308 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:04,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:04,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:04,508 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:04,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash 73027740, now seen corresponding path program 1 times [2024-11-23 23:08:04,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:08:04,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604490296] [2024-11-23 23:08:04,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:04,510 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 [2024-11-23 23:08:04,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:08:04,511 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:08:04,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:04,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:08:04,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 23:08:05,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:08:05,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:08:05,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604490296] [2024-11-23 23:08:05,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604490296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:05,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:05,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:08:05,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716858487] [2024-11-23 23:08:05,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:05,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:08:05,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:08:05,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:08:05,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:08:05,907 INFO L87 Difference]: Start difference. First operand 359 states and 476 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:22,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:22,650 INFO L93 Difference]: Finished difference Result 1048 states and 1388 transitions. [2024-11-23 23:08:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:08:22,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-23 23:08:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:22,657 INFO L225 Difference]: With dead ends: 1048 [2024-11-23 23:08:22,657 INFO L226 Difference]: Without dead ends: 692 [2024-11-23 23:08:22,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:08:22,661 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 109 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:22,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 575 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2024-11-23 23:08:22,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-23 23:08:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 363. [2024-11-23 23:08:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 273 states have (on average 1.2197802197802199) internal successors, (333), 276 states have internal predecessors, (333), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-23 23:08:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 479 transitions. [2024-11-23 23:08:22,747 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 479 transitions. Word has length 144 [2024-11-23 23:08:22,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:22,747 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 479 transitions. [2024-11-23 23:08:22,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 23:08:22,748 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 479 transitions. [2024-11-23 23:08:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-23 23:08:22,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:22,752 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:22,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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)] Ended with exit code 0 [2024-11-23 23:08:22,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:22,953 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:08:22,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:22,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1543234645, now seen corresponding path program 1 times [2024-11-23 23:08:22,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:08:22,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874449263] [2024-11-23 23:08:22,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:22,954 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 [2024-11-23 23:08:22,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:08:22,956 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:08:22,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f76c81e3-ebf1-475b-8753-ca5b395a9ab2/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:08:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:23,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 23:08:23,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:23,550 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 19 treesize of output 1 [2024-11-23 23:08:25,147 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 [2024-11-23 23:08:26,211 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 [2024-11-23 23:08:27,251 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 [2024-11-23 23:08:28,442 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 27 treesize of output 15 [2024-11-23 23:08:28,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:08:28,688 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 33 treesize of output 35 [2024-11-23 23:08:29,612 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 87 treesize of output 65 [2024-11-23 23:08:29,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:08:29,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:08:29,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 103 [2024-11-23 23:08:32,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:08:32,099 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 58 treesize of output 51 [2024-11-23 23:08:32,430 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:08:32,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 49 treesize of output 19 [2024-11-23 23:08:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 303 proven. 18 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-23 23:08:33,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:08:43,089 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 23:08:43,089 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:08:43,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874449263] [2024-11-23 23:08:43,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874449263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:08:43,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:08:43,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2024-11-23 23:08:43,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034953099] [2024-11-23 23:08:43,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:08:43,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:08:43,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:08:43,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:08:43,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:08:43,092 INFO L87 Difference]: Start difference. First operand 363 states and 479 transitions. Second operand has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25)