./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.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_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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_b089947a-3a5d-496f-99d7-b98af2417671/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 9be54bf039b1b69bac47621c18caa89883f4e5db7b74fe4f3e62990547785f77 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:01:03,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:01:03,220 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:01:03,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:01:03,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:01:03,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:01:03,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:01:03,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:01:03,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:01:03,280 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:01:03,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:01:03,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:01:03,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:01:03,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:01:03,284 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:01:03,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:01:03,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:01:03,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:01:03,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:01:03,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:01:03,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:01:03,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:01:03,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:01:03,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:01:03,287 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:01:03,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:01:03,287 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:01:03,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:01:03,288 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:01:03,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:03,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:03,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:03,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:03,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:01:03,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:03,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:03,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:03,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:03,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:01:03,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:01:03,290 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:01:03,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:01:03,290 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:01:03,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:01:03,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:01:03,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:01:03,291 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:01:03,291 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:01:03,292 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_b089947a-3a5d-496f-99d7-b98af2417671/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 -> 9be54bf039b1b69bac47621c18caa89883f4e5db7b74fe4f3e62990547785f77 [2024-11-24 02:01:03,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:01:03,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:01:03,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:01:03,681 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:01:03,681 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:01:03,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2024-11-24 02:01:06,945 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data/a9176789b/693c823704074b21a74ae02db551efe5/FLAGc2e5f913f [2024-11-24 02:01:07,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:01:07,286 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2024-11-24 02:01:07,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data/a9176789b/693c823704074b21a74ae02db551efe5/FLAGc2e5f913f [2024-11-24 02:01:07,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data/a9176789b/693c823704074b21a74ae02db551efe5 [2024-11-24 02:01:07,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:01:07,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:01:07,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:07,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:01:07,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:01:07,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788683bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07, skipping insertion in model container [2024-11-24 02:01:07,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:01:07,554 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_b089947a-3a5d-496f-99d7-b98af2417671/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i[915,928] [2024-11-24 02:01:07,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:07,623 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:01:07,635 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_b089947a-3a5d-496f-99d7-b98af2417671/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i[915,928] [2024-11-24 02:01:07,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:07,680 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:01:07,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07 WrapperNode [2024-11-24 02:01:07,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:07,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:07,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:01:07,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:01:07,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,728 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-11-24 02:01:07,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:07,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:01:07,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:01:07,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:01:07,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,758 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 02:01:07,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,764 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:01:07,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:01:07,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:01:07,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:01:07,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (1/1) ... [2024-11-24 02:01:07,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:07,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:07,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:01:07,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:01:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:01:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:01:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:01:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:01:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:01:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:01:07,950 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:01:07,953 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:01:08,330 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-24 02:01:08,330 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:01:08,342 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:01:08,343 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:01:08,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:08 BoogieIcfgContainer [2024-11-24 02:01:08,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:01:08,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:01:08,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:01:08,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:01:08,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:01:07" (1/3) ... [2024-11-24 02:01:08,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55aca753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:08, skipping insertion in model container [2024-11-24 02:01:08,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:07" (2/3) ... [2024-11-24 02:01:08,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55aca753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:08, skipping insertion in model container [2024-11-24 02:01:08,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:08" (3/3) ... [2024-11-24 02:01:08,355 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-33.i [2024-11-24 02:01:08,373 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:01:08,375 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-33.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:01:08,441 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:08,456 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;@6144af54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:08,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:01:08,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 39 states have (on average 1.435897435897436) internal successors, (56), 40 states have internal predecessors, (56), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-24 02:01:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 02:01:08,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:08,472 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:08,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:08,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:08,478 INFO L85 PathProgramCache]: Analyzing trace with hash -981592420, now seen corresponding path program 1 times [2024-11-24 02:01:08,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:08,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861867693] [2024-11-24 02:01:08,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:08,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 02:01:08,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:08,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861867693] [2024-11-24 02:01:08,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861867693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:08,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870792251] [2024-11-24 02:01:08,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:08,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:08,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:08,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:08,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:01:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:08,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:01:08,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:08,950 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-24 02:01:08,953 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:08,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870792251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:08,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:01:08,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:01:08,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161815023] [2024-11-24 02:01:08,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:08,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:01:08,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:08,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:01:08,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:08,989 INFO L87 Difference]: Start difference. First operand has 50 states, 39 states have (on average 1.435897435897436) internal successors, (56), 40 states have internal predecessors, (56), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 02:01:09,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:09,010 INFO L93 Difference]: Finished difference Result 91 states and 144 transitions. [2024-11-24 02:01:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:01:09,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-11-24 02:01:09,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:09,018 INFO L225 Difference]: With dead ends: 91 [2024-11-24 02:01:09,019 INFO L226 Difference]: Without dead ends: 44 [2024-11-24 02:01:09,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:09,025 INFO L435 NwaCegarLoop]: 60 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, 60 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 [2024-11-24 02:01:09,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:09,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-24 02:01:09,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-24 02:01:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-24 02:01:09,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2024-11-24 02:01:09,071 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 64 [2024-11-24 02:01:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:09,071 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2024-11-24 02:01:09,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 02:01:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2024-11-24 02:01:09,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 02:01:09,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:09,075 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:09,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:01:09,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 02:01:09,276 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:09,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash 912199136, now seen corresponding path program 1 times [2024-11-24 02:01:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585060792] [2024-11-24 02:01:09,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:09,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:01:09,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:09,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585060792] [2024-11-24 02:01:09,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585060792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:09,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:09,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:01:09,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390593838] [2024-11-24 02:01:09,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:09,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:01:09,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:09,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:01:09,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:09,582 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:09,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:09,793 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2024-11-24 02:01:09,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:01:09,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 64 [2024-11-24 02:01:09,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:09,797 INFO L225 Difference]: With dead ends: 140 [2024-11-24 02:01:09,797 INFO L226 Difference]: Without dead ends: 99 [2024-11-24 02:01:09,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:09,799 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 82 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:09,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 151 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:09,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-24 02:01:09,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2024-11-24 02:01:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 70 states have internal predecessors, (87), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:01:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 119 transitions. [2024-11-24 02:01:09,820 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 119 transitions. Word has length 64 [2024-11-24 02:01:09,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:09,820 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 119 transitions. [2024-11-24 02:01:09,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 119 transitions. [2024-11-24 02:01:09,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 02:01:09,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:09,823 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:09,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:01:09,823 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:09,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:09,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1827602144, now seen corresponding path program 1 times [2024-11-24 02:01:09,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:09,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024514879] [2024-11-24 02:01:09,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:09,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:01:10,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:10,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024514879] [2024-11-24 02:01:10,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024514879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:10,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:10,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:01:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643847957] [2024-11-24 02:01:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:10,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:01:10,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:10,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:01:10,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:01:10,211 INFO L87 Difference]: Start difference. First operand 89 states and 119 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:10,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:10,431 INFO L93 Difference]: Finished difference Result 185 states and 244 transitions. [2024-11-24 02:01:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:01:10,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 68 [2024-11-24 02:01:10,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:10,435 INFO L225 Difference]: With dead ends: 185 [2024-11-24 02:01:10,435 INFO L226 Difference]: Without dead ends: 99 [2024-11-24 02:01:10,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:01:10,436 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 77 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:10,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 226 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:01:10,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-24 02:01:10,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2024-11-24 02:01:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 70 states have internal predecessors, (86), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:01:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 118 transitions. [2024-11-24 02:01:10,452 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 118 transitions. Word has length 68 [2024-11-24 02:01:10,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:10,452 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 118 transitions. [2024-11-24 02:01:10,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:10,452 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 118 transitions. [2024-11-24 02:01:10,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 02:01:10,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:10,454 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:10,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:01:10,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:10,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:10,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1456247902, now seen corresponding path program 1 times [2024-11-24 02:01:10,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:10,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380562738] [2024-11-24 02:01:10,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:10,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:01:12,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:12,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380562738] [2024-11-24 02:01:12,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380562738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:12,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:12,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:01:12,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640279963] [2024-11-24 02:01:12,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:12,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:01:12,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:12,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:01:12,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:01:12,120 INFO L87 Difference]: Start difference. First operand 89 states and 118 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:12,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:12,537 INFO L93 Difference]: Finished difference Result 229 states and 300 transitions. [2024-11-24 02:01:12,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:01:12,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 68 [2024-11-24 02:01:12,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:12,540 INFO L225 Difference]: With dead ends: 229 [2024-11-24 02:01:12,542 INFO L226 Difference]: Without dead ends: 143 [2024-11-24 02:01:12,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:01:12,546 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 47 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:12,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 259 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:01:12,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-24 02:01:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 123. [2024-11-24 02:01:12,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 95 states have (on average 1.2) internal successors, (114), 95 states have internal predecessors, (114), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 02:01:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 162 transitions. [2024-11-24 02:01:12,595 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 162 transitions. Word has length 68 [2024-11-24 02:01:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:12,596 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 162 transitions. [2024-11-24 02:01:12,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 162 transitions. [2024-11-24 02:01:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 02:01:12,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:12,597 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:12,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:01:12,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:12,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:12,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2136306272, now seen corresponding path program 1 times [2024-11-24 02:01:12,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:12,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962746774] [2024-11-24 02:01:12,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:01:16,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:16,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962746774] [2024-11-24 02:01:16,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962746774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:16,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:16,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 02:01:16,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327574057] [2024-11-24 02:01:16,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:16,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:01:16,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:16,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:01:16,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:01:16,688 INFO L87 Difference]: Start difference. First operand 123 states and 162 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:18,833 INFO L93 Difference]: Finished difference Result 153 states and 192 transitions. [2024-11-24 02:01:18,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:01:18,834 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 68 [2024-11-24 02:01:18,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:18,836 INFO L225 Difference]: With dead ends: 153 [2024-11-24 02:01:18,836 INFO L226 Difference]: Without dead ends: 151 [2024-11-24 02:01:18,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2024-11-24 02:01:18,838 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 164 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:18,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 271 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 02:01:18,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-24 02:01:18,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 137. [2024-11-24 02:01:18,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 109 states have (on average 1.1743119266055047) internal successors, (128), 109 states have internal predecessors, (128), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 02:01:18,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 176 transitions. [2024-11-24 02:01:18,859 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 176 transitions. Word has length 68 [2024-11-24 02:01:18,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:18,860 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 176 transitions. [2024-11-24 02:01:18,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:18,860 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 176 transitions. [2024-11-24 02:01:18,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-24 02:01:18,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:18,863 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:18,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:01:18,864 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:18,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash 749449845, now seen corresponding path program 1 times [2024-11-24 02:01:18,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:18,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745469255] [2024-11-24 02:01:18,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:18,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2024-11-24 02:01:19,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:19,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745469255] [2024-11-24 02:01:19,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745469255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:19,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:19,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:01:19,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407163600] [2024-11-24 02:01:19,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:19,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:01:19,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:19,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:01:19,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:19,269 INFO L87 Difference]: Start difference. First operand 137 states and 176 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 02:01:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:19,322 INFO L93 Difference]: Finished difference Result 147 states and 186 transitions. [2024-11-24 02:01:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:01:19,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-11-24 02:01:19,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:19,325 INFO L225 Difference]: With dead ends: 147 [2024-11-24 02:01:19,325 INFO L226 Difference]: Without dead ends: 90 [2024-11-24 02:01:19,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:19,327 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 28 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:19,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 93 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:19,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-24 02:01:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2024-11-24 02:01:19,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.0952380952380953) internal successors, (69), 63 states have internal predecessors, (69), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:01:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 101 transitions. [2024-11-24 02:01:19,343 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 101 transitions. Word has length 131 [2024-11-24 02:01:19,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:19,343 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 101 transitions. [2024-11-24 02:01:19,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 02:01:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 101 transitions. [2024-11-24 02:01:19,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-24 02:01:19,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:19,346 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:19,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:01:19,347 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:19,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:19,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1557815806, now seen corresponding path program 1 times [2024-11-24 02:01:19,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:19,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528125048] [2024-11-24 02:01:19,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:19,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:19,767 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 40 proven. 27 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-24 02:01:19,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528125048] [2024-11-24 02:01:19,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528125048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71514654] [2024-11-24 02:01:19,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:19,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:19,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:19,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:19,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:01:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:19,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 02:01:19,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 331 proven. 15 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-24 02:01:25,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:01:28,537 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 50 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-24 02:01:28,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71514654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:01:28,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:01:28,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 8] total 15 [2024-11-24 02:01:28,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457612372] [2024-11-24 02:01:28,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:01:28,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:01:28,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:28,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:01:28,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:01:28,543 INFO L87 Difference]: Start difference. First operand 82 states and 101 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 02:01:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:28,867 INFO L93 Difference]: Finished difference Result 153 states and 178 transitions. [2024-11-24 02:01:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:01:28,868 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 133 [2024-11-24 02:01:28,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:28,871 INFO L225 Difference]: With dead ends: 153 [2024-11-24 02:01:28,873 INFO L226 Difference]: Without dead ends: 102 [2024-11-24 02:01:28,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 257 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:01:28,874 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 61 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:28,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 263 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:01:28,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-24 02:01:28,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2024-11-24 02:01:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 75 states have (on average 1.0533333333333332) internal successors, (79), 75 states have internal predecessors, (79), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:01:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2024-11-24 02:01:28,906 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 133 [2024-11-24 02:01:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:28,907 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2024-11-24 02:01:28,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 02:01:28,909 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2024-11-24 02:01:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-24 02:01:28,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:28,915 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:28,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 02:01:29,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-24 02:01:29,115 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:29,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 853881226, now seen corresponding path program 1 times [2024-11-24 02:01:29,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:29,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723122324] [2024-11-24 02:01:29,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:29,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 02:01:29,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055125317] [2024-11-24 02:01:29,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:29,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:29,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:29,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:29,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 02:01:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:29,768 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:01:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:29,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 02:01:29,966 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 02:01:29,968 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 02:01:30,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 02:01:30,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:30,182 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:30,308 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 02:01:30,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 02:01:30 BoogieIcfgContainer [2024-11-24 02:01:30,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 02:01:30,317 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:01:30,318 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:01:30,318 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:01:30,319 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:08" (3/4) ... [2024-11-24 02:01:30,325 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 02:01:30,326 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:01:30,329 INFO L158 Benchmark]: Toolchain (without parser) took 23001.95ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 116.8MB in the beginning and 260.9MB in the end (delta: -144.2MB). Peak memory consumption was 283.4MB. Max. memory is 16.1GB. [2024-11-24 02:01:30,330 INFO L158 Benchmark]: CDTParser took 1.77ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:01:30,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.36ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 104.2MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:01:30,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.64ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:01:30,331 INFO L158 Benchmark]: Boogie Preprocessor took 47.05ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 99.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:01:30,333 INFO L158 Benchmark]: RCFGBuilder took 566.59ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 84.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 02:01:30,333 INFO L158 Benchmark]: TraceAbstraction took 21969.56ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 84.0MB in the beginning and 261.1MB in the end (delta: -177.1MB). Peak memory consumption was 249.8MB. Max. memory is 16.1GB. [2024-11-24 02:01:30,334 INFO L158 Benchmark]: Witness Printer took 9.63ms. Allocated memory is still 570.4MB. Free memory was 261.1MB in the beginning and 260.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:01:30,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.77ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.36ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 104.2MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.64ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.05ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 99.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 566.59ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 84.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21969.56ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 84.0MB in the beginning and 261.1MB in the end (delta: -177.1MB). Peak memory consumption was 249.8MB. Max. memory is 16.1GB. * Witness Printer took 9.63ms. Allocated memory is still 570.4MB. Free memory was 261.1MB in the beginning and 260.9MB in the end (delta: 117.5kB). 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 83, overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryArithmeticFLOAToperation at line 60. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -10; [L23] unsigned char var_1_7 = 200; [L24] unsigned char var_1_8 = 4; [L25] signed char var_1_9 = 50; [L26] signed char var_1_12 = -5; [L27] float var_1_13 = 999999999999.8; [L28] float var_1_14 = 100.5; [L29] float var_1_15 = 32.75; [L30] unsigned char var_1_16 = 1; [L31] unsigned char var_1_17 = 1; [L32] unsigned char var_1_18 = 128; [L33] unsigned char last_1_var_1_7 = 200; [L34] signed char last_1_var_1_9 = 50; VAL [isInitial=0, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=4, var_1_9=50] [L87] isInitial = 1 [L88] FCALL initially() [L90] CALL updateLastVariables() [L79] last_1_var_1_7 = var_1_7 [L80] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=4, var_1_9=50] [L90] RET updateLastVariables() [L91] CALL updateVariables() [L64] var_1_8 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L65] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L66] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L66] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L67] var_1_12 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L68] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L69] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L69] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L74] var_1_17 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L75] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L76] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L76] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L91] RET updateVariables() [L92] CALL step() [L38] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=1, var_1_9=50] [L38] signed long int stepLocal_0 = (last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9; [L39] COND FALSE !(stepLocal_0 < -1) [L42] var_1_1 = (128 - (last_1_var_1_7 + last_1_var_1_7)) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-272, var_1_7=200, var_1_8=1, var_1_9=50] [L44] var_1_16 = var_1_17 [L45] var_1_18 = var_1_8 [L46] signed short int stepLocal_2 = var_1_1; [L47] unsigned char stepLocal_1 = (var_1_1 * var_1_18) < -10000; VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_1=0, stepLocal_2=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=200, var_1_8=1, var_1_9=50] [L48] COND TRUE \read(var_1_16) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_1=0, stepLocal_2=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=200, var_1_8=1, var_1_9=50] [L49] COND FALSE !(stepLocal_1 && var_1_16) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_2=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=200, var_1_8=1, var_1_9=50] [L55] COND TRUE var_1_18 == var_1_18 [L56] var_1_7 = var_1_8 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_2=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=1, var_1_9=50] [L58] signed short int stepLocal_3 = var_1_1; VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_2=-272, stepLocal_3=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=1, var_1_9=50] [L59] COND FALSE !(var_1_18 == stepLocal_3) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_2=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=1, var_1_9=50] [L92] RET step() [L93] CALL, EXPR property() [L83] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=1, var_1_9=50] [L83-L84] return ((((((((last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (last_1_var_1_7 + last_1_var_1_7))))) && ((var_1_18 == var_1_18) ? (var_1_7 == ((unsigned char) var_1_8)) : 1)) && (var_1_16 ? ((((var_1_1 * var_1_18) < -10000) && var_1_16) ? ((var_1_1 > var_1_1) ? (var_1_9 == ((signed char) var_1_12)) : 1) : 1) : 1)) && ((var_1_18 == var_1_1) ? (var_1_13 == ((float) (var_1_14 - var_1_15))) : 1)) && (var_1_16 == ((unsigned char) var_1_17))) && (var_1_18 == ((unsigned char) var_1_8)) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND FALSE !(!(cond)) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=1, var_1_9=50] [L93] RET __VERIFIER_assert(property()) [L94] isInitial = 0 VAL [isInitial=0, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=1, var_1_9=50] [L90] CALL updateLastVariables() [L79] last_1_var_1_7 = var_1_7 [L80] last_1_var_1_9 = var_1_9 VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=1, var_1_9=50] [L90] RET updateLastVariables() [L91] CALL updateVariables() [L64] var_1_8 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_9=50] [L65] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_9=50] [L66] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L66] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L67] var_1_12 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L68] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L69] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L69] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L74] var_1_17 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=-255, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=-255, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L75] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=-255, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L76] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=-255, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=-255, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L76] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=-255, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L91] RET updateVariables() [L92] CALL step() [L38] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=-255, var_1_18=1, var_1_1=-272, var_1_7=1, var_1_8=126, var_1_9=50] [L38] signed long int stepLocal_0 = (last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9; [L39] COND FALSE !(stepLocal_0 < -1) [L42] var_1_1 = (128 - (last_1_var_1_7 + last_1_var_1_7)) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=-255, var_1_18=1, var_1_1=126, var_1_7=1, var_1_8=126, var_1_9=50] [L44] var_1_16 = var_1_17 [L45] var_1_18 = var_1_8 [L46] signed short int stepLocal_2 = var_1_1; [L47] unsigned char stepLocal_1 = (var_1_1 * var_1_18) < -10000; VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, stepLocal_1=0, stepLocal_2=126, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=1, var_1_8=126, var_1_9=50] [L48] COND TRUE \read(var_1_16) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, stepLocal_1=0, stepLocal_2=126, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=1, var_1_8=126, var_1_9=50] [L49] COND FALSE !(stepLocal_1 && var_1_16) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, stepLocal_2=126, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=1, var_1_8=126, var_1_9=50] [L55] COND TRUE var_1_18 == var_1_18 [L56] var_1_7 = var_1_8 VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, stepLocal_2=126, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=126, var_1_8=126, var_1_9=50] [L58] signed short int stepLocal_3 = var_1_1; VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, stepLocal_2=126, stepLocal_3=126, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=126, var_1_8=126, var_1_9=50] [L59] COND TRUE var_1_18 == stepLocal_3 [L60] var_1_13 = (var_1_14 - var_1_15) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, stepLocal_2=126, var_1_12=-127, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=126, var_1_8=126, var_1_9=50] [L92] RET step() [L93] CALL, EXPR property() [L83] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=126, var_1_8=126, var_1_9=50] [L83-L84] return ((((((((last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (last_1_var_1_7 + last_1_var_1_7))))) && ((var_1_18 == var_1_18) ? (var_1_7 == ((unsigned char) var_1_8)) : 1)) && (var_1_16 ? ((((var_1_1 * var_1_18) < -10000) && var_1_16) ? ((var_1_1 > var_1_1) ? (var_1_9 == ((signed char) var_1_12)) : 1) : 1) : 1)) && ((var_1_18 == var_1_1) ? (var_1_13 == ((float) (var_1_14 - var_1_15))) : 1)) && (var_1_16 == ((unsigned char) var_1_17))) && (var_1_18 == ((unsigned char) var_1_8)) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=126, var_1_8=126, var_1_9=50] [L19] reach_error() VAL [isInitial=0, last_1_var_1_7=1, last_1_var_1_9=50, var_1_12=-127, var_1_16=-255, var_1_17=-255, var_1_18=126, var_1_1=126, var_1_7=126, var_1_8=126, var_1_9=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.8s, OverallIterations: 8, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 459 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 459 mSDsluCounter, 1323 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 976 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 640 IncrementalHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 347 mSDtfsCounter, 640 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 340 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=5, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 66 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 1063 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 916 ConstructedInterpolants, 0 QuantifiedInterpolants, 4038 SizeOfPredicates, 15 NumberOfNonLiveVariables, 481 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2633/2716 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 [2024-11-24 02:01:30,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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_b089947a-3a5d-496f-99d7-b98af2417671/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 9be54bf039b1b69bac47621c18caa89883f4e5db7b74fe4f3e62990547785f77 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:01:33,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:01:33,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 02:01:33,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:01:33,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:01:33,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:01:33,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:01:33,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:01:33,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:01:33,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:01:33,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:01:33,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:01:33,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:01:33,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:01:33,544 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:01:33,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:01:33,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:01:33,545 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:01:33,545 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:01:33,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:01:33,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:01:33,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:01:33,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:01:33,546 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 02:01:33,546 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 02:01:33,546 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 02:01:33,546 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:01:33,546 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:01:33,546 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:01:33,546 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:01:33,547 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:01:33,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:33,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:33,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:33,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:33,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:01:33,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:33,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:33,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:33,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:33,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:01:33,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:01:33,548 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:01:33,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:01:33,548 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 02:01:33,549 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 02:01:33,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:01:33,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:01:33,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:01:33,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:01:33,549 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_b089947a-3a5d-496f-99d7-b98af2417671/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 -> 9be54bf039b1b69bac47621c18caa89883f4e5db7b74fe4f3e62990547785f77 [2024-11-24 02:01:33,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:01:33,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:01:33,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:01:33,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:01:33,898 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:01:33,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2024-11-24 02:01:37,342 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data/f42f4b33a/84b31d9a3fd241c9900028a1243b1be3/FLAG94cbf7eb1 [2024-11-24 02:01:37,705 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:01:37,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2024-11-24 02:01:37,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data/f42f4b33a/84b31d9a3fd241c9900028a1243b1be3/FLAG94cbf7eb1 [2024-11-24 02:01:37,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/data/f42f4b33a/84b31d9a3fd241c9900028a1243b1be3 [2024-11-24 02:01:37,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:01:37,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:01:37,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:37,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:01:37,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:01:37,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:37" (1/1) ... [2024-11-24 02:01:37,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b25c13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:37, skipping insertion in model container [2024-11-24 02:01:37,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:37" (1/1) ... [2024-11-24 02:01:37,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:01:37,977 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_b089947a-3a5d-496f-99d7-b98af2417671/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i[915,928] [2024-11-24 02:01:38,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:38,076 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:01:38,093 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_b089947a-3a5d-496f-99d7-b98af2417671/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i[915,928] [2024-11-24 02:01:38,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:38,157 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:01:38,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38 WrapperNode [2024-11-24 02:01:38,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:38,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:38,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:01:38,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:01:38,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,224 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-11-24 02:01:38,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:38,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:01:38,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:01:38,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:01:38,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,254 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 02:01:38,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,263 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:01:38,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:01:38,276 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:01:38,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:01:38,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (1/1) ... [2024-11-24 02:01:38,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:38,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:38,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:01:38,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:01:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:01:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 02:01:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:01:38,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:01:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:01:38,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:01:38,458 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:01:38,460 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:01:38,890 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-24 02:01:38,890 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:01:38,901 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:01:38,902 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:01:38,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:38 BoogieIcfgContainer [2024-11-24 02:01:38,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:01:38,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:01:38,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:01:38,912 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:01:38,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:01:37" (1/3) ... [2024-11-24 02:01:38,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3882a2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:38, skipping insertion in model container [2024-11-24 02:01:38,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:38" (2/3) ... [2024-11-24 02:01:38,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3882a2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:38, skipping insertion in model container [2024-11-24 02:01:38,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:38" (3/3) ... [2024-11-24 02:01:38,915 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-33.i [2024-11-24 02:01:38,935 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:01:38,937 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-33.i that has 2 procedures, 40 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:01:39,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:39,047 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;@7172d5f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:39,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:01:39,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-24 02:01:39,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 02:01:39,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:39,063 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:39,063 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:39,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1891658366, now seen corresponding path program 1 times [2024-11-24 02:01:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:01:39,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055226409] [2024-11-24 02:01:39,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:39,084 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 [2024-11-24 02:01:39,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:01:39,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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) [2024-11-24 02:01:39,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:39,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:01:39,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-24 02:01:39,357 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:39,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:01:39,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055226409] [2024-11-24 02:01:39,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055226409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:39,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:39,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 02:01:39,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551416270] [2024-11-24 02:01:39,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:39,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:01:39,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:01:39,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:01:39,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:39,402 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 02:01:39,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:39,442 INFO L93 Difference]: Finished difference Result 73 states and 114 transitions. [2024-11-24 02:01:39,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:01:39,445 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2024-11-24 02:01:39,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:39,454 INFO L225 Difference]: With dead ends: 73 [2024-11-24 02:01:39,454 INFO L226 Difference]: Without dead ends: 36 [2024-11-24 02:01:39,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:39,464 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:39,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-24 02:01:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-24 02:01:39,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-24 02:01:39,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2024-11-24 02:01:39,524 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 60 [2024-11-24 02:01:39,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:39,525 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-11-24 02:01:39,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 02:01:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2024-11-24 02:01:39,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 02:01:39,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:39,528 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:39,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:39,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:39,729 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:39,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:39,730 INFO L85 PathProgramCache]: Analyzing trace with hash -458830138, now seen corresponding path program 1 times [2024-11-24 02:01:39,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:01:39,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706989431] [2024-11-24 02:01:39,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:39,731 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 [2024-11-24 02:01:39,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:01:39,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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) [2024-11-24 02:01:39,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:39,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:01:39,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:01:40,272 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:40,273 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:01:40,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706989431] [2024-11-24 02:01:40,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706989431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:40,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:40,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:01:40,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19230958] [2024-11-24 02:01:40,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:40,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:40,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:01:40,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:40,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:40,277 INFO L87 Difference]: Start difference. First operand 36 states and 48 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:40,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:40,671 INFO L93 Difference]: Finished difference Result 112 states and 149 transitions. [2024-11-24 02:01:40,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:01:40,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 60 [2024-11-24 02:01:40,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:40,677 INFO L225 Difference]: With dead ends: 112 [2024-11-24 02:01:40,677 INFO L226 Difference]: Without dead ends: 79 [2024-11-24 02:01:40,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:01:40,678 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:40,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 171 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:01:40,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-24 02:01:40,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2024-11-24 02:01:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 48 states have internal predecessors, (59), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:01:40,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2024-11-24 02:01:40,718 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 60 [2024-11-24 02:01:40,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:40,719 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2024-11-24 02:01:40,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:40,719 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2024-11-24 02:01:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 02:01:40,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:40,724 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:40,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:40,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:40,928 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:40,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:40,929 INFO L85 PathProgramCache]: Analyzing trace with hash -851857148, now seen corresponding path program 1 times [2024-11-24 02:01:40,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:01:40,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79917272] [2024-11-24 02:01:40,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:40,932 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 [2024-11-24 02:01:40,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:01:40,935 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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) [2024-11-24 02:01:40,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:41,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 02:01:41,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:41,313 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-24 02:01:41,314 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:41,318 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:01:41,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79917272] [2024-11-24 02:01:41,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79917272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:41,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:41,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:01:41,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005950226] [2024-11-24 02:01:41,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:41,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:01:41,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:01:41,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:01:41,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:01:41,320 INFO L87 Difference]: Start difference. First operand 67 states and 91 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 02:01:42,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:42,046 INFO L93 Difference]: Finished difference Result 151 states and 195 transitions. [2024-11-24 02:01:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:01:42,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2024-11-24 02:01:42,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:42,055 INFO L225 Difference]: With dead ends: 151 [2024-11-24 02:01:42,055 INFO L226 Difference]: Without dead ends: 87 [2024-11-24 02:01:42,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:01:42,059 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 89 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:42,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 127 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:01:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-24 02:01:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2024-11-24 02:01:42,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.15) internal successors, (69), 60 states have internal predecessors, (69), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:01:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 101 transitions. [2024-11-24 02:01:42,083 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 101 transitions. Word has length 60 [2024-11-24 02:01:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:42,084 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 101 transitions. [2024-11-24 02:01:42,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 02:01:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2024-11-24 02:01:42,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 02:01:42,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:42,086 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:42,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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)] Ended with exit code 0 [2024-11-24 02:01:42,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:42,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:42,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:42,288 INFO L85 PathProgramCache]: Analyzing trace with hash 237329020, now seen corresponding path program 1 times [2024-11-24 02:01:42,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:01:42,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705068795] [2024-11-24 02:01:42,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:42,288 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 [2024-11-24 02:01:42,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:01:42,293 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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) [2024-11-24 02:01:42,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 (5)] Waiting until timeout for monitored process [2024-11-24 02:01:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:42,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 02:01:42,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:01:42,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:42,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:01:42,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705068795] [2024-11-24 02:01:42,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705068795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:42,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:42,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:42,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970383824] [2024-11-24 02:01:42,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:42,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:01:42,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:01:42,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:01:42,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:01:42,755 INFO L87 Difference]: Start difference. First operand 83 states and 101 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:43,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:43,496 INFO L93 Difference]: Finished difference Result 267 states and 324 transitions. [2024-11-24 02:01:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:01:43,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 61 [2024-11-24 02:01:43,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:43,499 INFO L225 Difference]: With dead ends: 267 [2024-11-24 02:01:43,499 INFO L226 Difference]: Without dead ends: 187 [2024-11-24 02:01:43,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:01:43,501 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 72 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:43,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 247 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:01:43,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-24 02:01:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 121. [2024-11-24 02:01:43,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 87 states have internal predecessors, (98), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 02:01:43,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 146 transitions. [2024-11-24 02:01:43,556 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 146 transitions. Word has length 61 [2024-11-24 02:01:43,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:43,556 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 146 transitions. [2024-11-24 02:01:43,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:01:43,557 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 146 transitions. [2024-11-24 02:01:43,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 02:01:43,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:43,558 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:43,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 (5)] Ended with exit code 0 [2024-11-24 02:01:43,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:43,763 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:43,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:43,764 INFO L85 PathProgramCache]: Analyzing trace with hash 239176062, now seen corresponding path program 1 times [2024-11-24 02:01:43,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:01:43,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007514928] [2024-11-24 02:01:43,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:43,765 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 [2024-11-24 02:01:43,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:01:43,767 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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) [2024-11-24 02:01:43,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:01:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:43,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 02:01:43,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:02:04,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:02:04,442 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:02:04,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007514928] [2024-11-24 02:02:04,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007514928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:04,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:04,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:02:04,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335969168] [2024-11-24 02:02:04,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:04,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:02:04,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:02:04,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:02:04,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:02:04,444 INFO L87 Difference]: Start difference. First operand 121 states and 146 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:02:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:05,018 INFO L93 Difference]: Finished difference Result 128 states and 153 transitions. [2024-11-24 02:02:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:02:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 61 [2024-11-24 02:02:05,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:05,021 INFO L225 Difference]: With dead ends: 128 [2024-11-24 02:02:05,021 INFO L226 Difference]: Without dead ends: 126 [2024-11-24 02:02:05,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:02:05,022 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 34 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:05,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 190 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:02:05,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-24 02:02:05,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2024-11-24 02:02:05,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 90 states have internal predecessors, (101), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 02:02:05,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2024-11-24 02:02:05,052 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 61 [2024-11-24 02:02:05,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:05,053 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2024-11-24 02:02:05,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:02:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2024-11-24 02:02:05,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 02:02:05,054 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:05,054 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:05,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:02:05,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:02:05,258 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:05,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:05,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1560266929, now seen corresponding path program 1 times [2024-11-24 02:02:05,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:02:05,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509870423] [2024-11-24 02:02:05,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:05,260 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 [2024-11-24 02:02:05,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:02:05,262 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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) [2024-11-24 02:02:05,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:02:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:05,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 02:02:05,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:05,443 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:02:05,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:02:05,443 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:02:05,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509870423] [2024-11-24 02:02:05,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509870423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:05,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:05,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:02:05,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768853751] [2024-11-24 02:02:05,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:05,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:02:05,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:02:05,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:02:05,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:05,445 INFO L87 Difference]: Start difference. First operand 124 states and 149 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:02:05,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:05,612 INFO L93 Difference]: Finished difference Result 134 states and 159 transitions. [2024-11-24 02:02:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:02:05,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 62 [2024-11-24 02:02:05,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:05,618 INFO L225 Difference]: With dead ends: 134 [2024-11-24 02:02:05,618 INFO L226 Difference]: Without dead ends: 90 [2024-11-24 02:02:05,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:05,619 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:05,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 77 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:02:05,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-24 02:02:05,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2024-11-24 02:02:05,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 59 states have (on average 1.0677966101694916) internal successors, (63), 59 states have internal predecessors, (63), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:02:05,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2024-11-24 02:02:05,643 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 62 [2024-11-24 02:02:05,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:05,643 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2024-11-24 02:02:05,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 02:02:05,644 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2024-11-24 02:02:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 02:02:05,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:05,650 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:05,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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)] Ended with exit code 0 [2024-11-24 02:02:05,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:02:05,851 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:05,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:05,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1133709702, now seen corresponding path program 1 times [2024-11-24 02:02:05,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:02:05,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003997660] [2024-11-24 02:02:05,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:05,852 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 [2024-11-24 02:02:05,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:02:05,854 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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) [2024-11-24 02:02:05,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:02:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:06,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 02:02:06,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 346 proven. 14 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 02:02:36,511 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:03:12,599 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:03:12,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003997660] [2024-11-24 02:03:12,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003997660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:03:12,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1789824039] [2024-11-24 02:03:12,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:12,599 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 02:03:12,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 02:03:12,602 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 02:03:12,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-24 02:03:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:13,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 02:03:13,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:04:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 68 proven. 293 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 02:04:30,059 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:05:11,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1789824039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:05:11,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:05:11,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20] total 22 [2024-11-24 02:05:11,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033808672] [2024-11-24 02:05:11,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 02:05:11,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 02:05:11,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:05:11,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 02:05:11,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 02:05:11,218 INFO L87 Difference]: Start difference. First operand 82 states and 95 transitions. Second operand has 23 states, 23 states have (on average 3.5217391304347827) internal successors, (81), 22 states have internal predecessors, (81), 5 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-24 02:05:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:34,423 INFO L93 Difference]: Finished difference Result 160 states and 174 transitions. [2024-11-24 02:05:34,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-24 02:05:34,424 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.5217391304347827) internal successors, (81), 22 states have internal predecessors, (81), 5 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 119 [2024-11-24 02:05:34,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:34,426 INFO L225 Difference]: With dead ends: 160 [2024-11-24 02:05:34,426 INFO L226 Difference]: Without dead ends: 158 [2024-11-24 02:05:34,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 65.1s TimeCoverageRelationStatistics Valid=587, Invalid=2605, Unknown=0, NotChecked=0, Total=3192 [2024-11-24 02:05:34,429 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 86 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:34,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 172 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 02:05:34,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-24 02:05:34,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 98. [2024-11-24 02:05:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.056338028169014) internal successors, (75), 71 states have internal predecessors, (75), 16 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:05:34,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2024-11-24 02:05:34,466 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 119 [2024-11-24 02:05:34,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:34,469 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2024-11-24 02:05:34,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.5217391304347827) internal successors, (81), 22 states have internal predecessors, (81), 5 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-24 02:05:34,470 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2024-11-24 02:05:34,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 02:05:34,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:34,472 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:34,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:05:34,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-24 02:05:34,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 02:05:34,873 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:34,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:34,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1131862660, now seen corresponding path program 1 times [2024-11-24 02:05:34,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:05:34,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840528864] [2024-11-24 02:05:34,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:34,875 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 [2024-11-24 02:05:34,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:05:34,879 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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) [2024-11-24 02:05:34,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:05:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:35,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 02:05:35,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:05:46,676 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 278 proven. 2 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-24 02:05:46,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:05:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-11-24 02:05:54,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:05:54,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840528864] [2024-11-24 02:05:54,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840528864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:05:54,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:05:54,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2024-11-24 02:05:54,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924423229] [2024-11-24 02:05:54,311 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 02:05:54,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 02:05:54,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:05:54,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 02:05:54,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:05:54,316 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-24 02:05:55,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:55,432 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2024-11-24 02:05:55,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 02:05:55,433 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 119 [2024-11-24 02:05:55,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:55,434 INFO L225 Difference]: With dead ends: 103 [2024-11-24 02:05:55,434 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 02:05:55,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:05:55,435 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 25 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:55,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 197 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 02:05:55,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 02:05:55,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 02:05:55,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:05:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 02:05:55,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 119 [2024-11-24 02:05:55,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:55,440 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 02:05:55,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-24 02:05:55,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 02:05:55,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 02:05:55,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 02:05:55,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:05:55,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 [2024-11-24 02:05:55,648 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:55,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 02:06:00,464 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 02:06:00,481 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,482 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,482 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,482 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,482 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-24 02:06:00,483 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,483 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-24 02:06:00,483 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,483 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,483 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,484 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,484 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,484 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-24 02:06:00,484 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-24 02:06:00,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 02:06:00 BoogieIcfgContainer [2024-11-24 02:06:00,487 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 02:06:00,488 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:06:00,488 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:06:00,488 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:06:00,489 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:38" (3/4) ... [2024-11-24 02:06:00,492 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 02:06:00,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 02:06:00,503 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-24 02:06:00,503 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 02:06:00,504 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 02:06:00,504 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 02:06:00,610 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 02:06:00,611 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 02:06:00,611 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:06:00,612 INFO L158 Benchmark]: Toolchain (without parser) took 262860.48ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 91.9MB in the beginning and 788.1MB in the end (delta: -696.2MB). Peak memory consumption was 539.8MB. Max. memory is 16.1GB. [2024-11-24 02:06:00,612 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:06:00,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.24ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 78.8MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:06:00,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.06ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:06:00,613 INFO L158 Benchmark]: Boogie Preprocessor took 50.19ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:06:00,614 INFO L158 Benchmark]: RCFGBuilder took 626.44ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 61.3MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:06:00,614 INFO L158 Benchmark]: TraceAbstraction took 261582.30ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 60.7MB in the beginning and 796.4MB in the end (delta: -735.7MB). Peak memory consumption was 506.2MB. Max. memory is 16.1GB. [2024-11-24 02:06:00,615 INFO L158 Benchmark]: Witness Printer took 123.07ms. Allocated memory is still 1.4GB. Free memory was 796.4MB in the beginning and 788.1MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:06:00,617 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.24ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 78.8MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.06ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.19ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 626.44ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 61.3MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 261582.30ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 60.7MB in the beginning and 796.4MB in the end (delta: -735.7MB). Peak memory consumption was 506.2MB. Max. memory is 16.1GB. * Witness Printer took 123.07ms. Allocated memory is still 1.4GB. Free memory was 796.4MB in the beginning and 788.1MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 256.6s, OverallIterations: 8, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 374 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 369 mSDsluCounter, 1229 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 911 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 922 IncrementalHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 318 mSDtfsCounter, 922 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 922 GetRequests, 803 SyntacticMatches, 2 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 67.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=5, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 152 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 225.2s InterpolantComputationTime, 721 NumberOfCodeBlocks, 721 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 830 ConstructedInterpolants, 1 QuantifiedInterpolants, 6933 SizeOfPredicates, 86 NumberOfNonLiveVariables, 1239 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2359/2692 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 89]: Loop Invariant Derived loop invariant: (((((((((50 == last_1_var_1_9) && (var_1_8 == var_1_18)) && (var_1_16 <= 1)) && (var_1_8 == var_1_7)) && (var_1_9 == 50)) && (0 != var_1_16)) && (var_1_17 <= 1)) && (var_1_17 >= 1)) || ((((((((50 == last_1_var_1_9) && (var_1_16 >= 1)) && (0 == ((56 + last_1_var_1_7) % 256))) && (var_1_16 <= 1)) && (var_1_9 == 50)) && (0 == ((var_1_7 + 56) % 256))) && (var_1_17 <= 1)) && (var_1_17 >= 1))) RESULT: Ultimate proved your program to be correct! [2024-11-24 02:06:00,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b089947a-3a5d-496f-99d7-b98af2417671/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 Writing output log to file Ultimate.log Result: TRUE