./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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 a29f19ee668a272ed21698ceeb530ae70127eecfee6eac63ae27dac8400ddad7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:58:46,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:58:46,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:58:46,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:58:46,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:58:46,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:58:46,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:58:46,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:58:46,780 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:58:46,781 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:58:46,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:58:46,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:58:46,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:58:46,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:58:46,781 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:58:46,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:58:46,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:58:46,782 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:58:46,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:58:46,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:58:46,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:58:46,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:58:46,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:58:46,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:58:46,785 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:58:46,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:58:46,785 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:58:46,786 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:58:46,786 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:58:46,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:58:46,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:58:46,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:58:46,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:58:46,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:58:46,788 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:58:46,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:58:46,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:58:46,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:58:46,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:58:46,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:58:46,788 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:58:46,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:58:46,789 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:58:46,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:58:46,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:58:46,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:58:46,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:58:46,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:58:46,790 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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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 -> a29f19ee668a272ed21698ceeb530ae70127eecfee6eac63ae27dac8400ddad7 [2024-11-23 22:58:47,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:58:47,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:58:47,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:58:47,222 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:58:47,222 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:58:47,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i [2024-11-23 22:58:50,483 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data/e5da09a40/f140ded0804842918a90989da90bce17/FLAG6c14df0ce [2024-11-23 22:58:50,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:58:50,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i [2024-11-23 22:58:50,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data/e5da09a40/f140ded0804842918a90989da90bce17/FLAG6c14df0ce [2024-11-23 22:58:50,895 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data/e5da09a40/f140ded0804842918a90989da90bce17 [2024-11-23 22:58:50,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:58:50,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:58:50,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:58:50,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:58:50,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:58:50,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:58:50" (1/1) ... [2024-11-23 22:58:50,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed01837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:50, skipping insertion in model container [2024-11-23 22:58:50,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:58:50" (1/1) ... [2024-11-23 22:58:50,929 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:58:51,115 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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i[914,927] [2024-11-23 22:58:51,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:58:51,210 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:58:51,224 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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i[914,927] [2024-11-23 22:58:51,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:58:51,277 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:58:51,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51 WrapperNode [2024-11-23 22:58:51,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:58:51,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:58:51,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:58:51,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:58:51,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,323 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-11-23 22:58:51,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:58:51,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:58:51,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:58:51,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:58:51,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,367 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]. [2024-11-23 22:58:51,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,380 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:58:51,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:58:51,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:58:51,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:58:51,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (1/1) ... [2024-11-23 22:58:51,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:58:51,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:58:51,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:58:51,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:58:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:58:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:58:51,479 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:58:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:58:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:58:51,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:58:51,564 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:58:51,567 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:58:51,858 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-23 22:58:51,858 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:58:51,869 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:58:51,870 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:58:51,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:51 BoogieIcfgContainer [2024-11-23 22:58:51,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:58:51,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:58:51,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:58:51,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:58:51,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:58:50" (1/3) ... [2024-11-23 22:58:51,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702f08a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:58:51, skipping insertion in model container [2024-11-23 22:58:51,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:51" (2/3) ... [2024-11-23 22:58:51,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702f08a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:58:51, skipping insertion in model container [2024-11-23 22:58:51,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:51" (3/3) ... [2024-11-23 22:58:51,885 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-3.i [2024-11-23 22:58:51,905 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:58:51,907 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-3.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:58:51,991 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:58:52,009 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;@4985b2fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:58:52,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:58:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 22:58:52,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 22:58:52,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:52,030 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:52,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:52,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:52,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1440556874, now seen corresponding path program 1 times [2024-11-23 22:58:52,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:52,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548709870] [2024-11-23 22:58:52,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:52,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:58:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-23 22:58:52,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:58:52,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548709870] [2024-11-23 22:58:52,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548709870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:58:52,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671171771] [2024-11-23 22:58:52,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:52,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:58:52,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:58:52,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:58:52,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:58:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:52,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:58:52,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:58:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-23 22:58:52,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:58:52,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671171771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:58:52,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:58:52,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 22:58:52,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129248421] [2024-11-23 22:58:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:58:52,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:58:52,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:58:52,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:58:52,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:58:52,756 INFO L87 Difference]: Start difference. First operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 22:58:52,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:58:52,800 INFO L93 Difference]: Finished difference Result 91 states and 151 transitions. [2024-11-23 22:58:52,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:58:52,803 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-23 22:58:52,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:58:52,813 INFO L225 Difference]: With dead ends: 91 [2024-11-23 22:58:52,813 INFO L226 Difference]: Without dead ends: 45 [2024-11-23 22:58:52,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:58:52,822 INFO L435 NwaCegarLoop]: 64 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, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:58:52,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:58:52,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-23 22:58:52,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-23 22:58:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 22:58:52,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2024-11-23 22:58:52,876 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 97 [2024-11-23 22:58:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:58:52,877 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2024-11-23 22:58:52,877 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 22:58:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2024-11-23 22:58:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 22:58:52,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:52,882 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:52,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:58:53,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:58:53,083 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:53,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:53,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1296867252, now seen corresponding path program 1 times [2024-11-23 22:58:53,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:53,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736605307] [2024-11-23 22:58:53,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:53,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:58:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:54,041 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-23 22:58:54,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:58:54,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736605307] [2024-11-23 22:58:54,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736605307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:58:54,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232834357] [2024-11-23 22:58:54,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:54,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:58:54,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:58:54,049 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:58:54,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:58:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:54,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:58:54,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:58:54,443 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 22:58:54,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:58:54,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232834357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:58:54,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:58:54,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 10 [2024-11-23 22:58:54,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933287782] [2024-11-23 22:58:54,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:58:54,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:58:54,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:58:54,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:58:54,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:58:54,450 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 22:58:55,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:58:55,050 INFO L93 Difference]: Finished difference Result 121 states and 170 transitions. [2024-11-23 22:58:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:58:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-23 22:58:55,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:58:55,054 INFO L225 Difference]: With dead ends: 121 [2024-11-23 22:58:55,055 INFO L226 Difference]: Without dead ends: 79 [2024-11-23 22:58:55,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:58:55,058 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 106 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:58:55,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 163 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:58:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-23 22:58:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 74. [2024-11-23 22:58:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 22:58:55,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 103 transitions. [2024-11-23 22:58:55,103 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 103 transitions. Word has length 97 [2024-11-23 22:58:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:58:55,103 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 103 transitions. [2024-11-23 22:58:55,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 22:58:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 103 transitions. [2024-11-23 22:58:55,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 22:58:55,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:55,110 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:55,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:58:55,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:58:55,316 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:55,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1976925622, now seen corresponding path program 1 times [2024-11-23 22:58:55,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:55,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727642129] [2024-11-23 22:58:55,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:55,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:58:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:58:55,482 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:58:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:58:55,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 22:58:55,663 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:58:55,665 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:58:55,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:58:55,673 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 22:58:55,772 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:58:55,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:58:55 BoogieIcfgContainer [2024-11-23 22:58:55,776 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:58:55,777 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:58:55,777 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:58:55,778 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:58:55,779 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:51" (3/4) ... [2024-11-23 22:58:55,782 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:58:55,783 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:58:55,784 INFO L158 Benchmark]: Toolchain (without parser) took 4885.08ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 45.5MB in the end (delta: 55.1MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2024-11-23 22:58:55,784 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:58:55,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.11ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 88.1MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:58:55,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.95ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 86.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:58:55,786 INFO L158 Benchmark]: Boogie Preprocessor took 69.12ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:58:55,786 INFO L158 Benchmark]: RCFGBuilder took 476.27ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 69.3MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:58:55,787 INFO L158 Benchmark]: TraceAbstraction took 3901.76ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 46.4MB in the end (delta: 22.5MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-11-23 22:58:55,787 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 142.6MB. Free memory was 46.4MB in the beginning and 45.5MB in the end (delta: 933.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:58:55,789 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.11ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 88.1MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.95ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 86.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.12ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 476.27ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 69.3MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3901.76ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 46.4MB in the end (delta: 22.5MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 142.6MB. Free memory was 46.4MB in the beginning and 45.5MB in the end (delta: 933.5kB). 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 someBinaryDOUBLEComparisonOperation at line 89, overapproximation of someBinaryDOUBLEComparisonOperation at line 81. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] signed long int var_1_6 = -64; [L26] signed long int var_1_7 = -5; [L27] signed long int var_1_8 = 500; [L28] signed long int var_1_9 = -5; [L29] signed long int var_1_10 = -100; [L30] unsigned char var_1_11 = 1; [L31] double var_1_12 = 127.5; [L32] double var_1_13 = 7.25; [L33] unsigned char var_1_14 = 1; [L34] unsigned char var_1_15 = 0; VAL [isInitial=0, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L93] isInitial = 1 [L94] FCALL initially() [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L64] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L64] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L65] var_1_5 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L66] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L67] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L67] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L68] var_1_7 = __VERIFIER_nondet_long() [L69] CALL assume_abort_if_not(var_1_7 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=500, var_1_9=-5] [L69] RET assume_abort_if_not(var_1_7 >= -1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=500, var_1_9=-5] [L70] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=500, var_1_9=-5] [L70] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=500, var_1_9=-5] [L71] var_1_8 = __VERIFIER_nondet_long() [L72] CALL assume_abort_if_not(var_1_8 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=-5] [L72] RET assume_abort_if_not(var_1_8 >= -1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=-5] [L73] CALL assume_abort_if_not(var_1_8 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=-5] [L73] RET assume_abort_if_not(var_1_8 <= 1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=-5] [L74] var_1_9 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_9 >= -536870912) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L75] RET assume_abort_if_not(var_1_9 >= -536870912) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L76] CALL assume_abort_if_not(var_1_9 <= 536870912) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L76] RET assume_abort_if_not(var_1_9 <= 536870912) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L77] var_1_10 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_10 >= -536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L78] RET assume_abort_if_not(var_1_10 >= -536870911) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L79] CALL assume_abort_if_not(var_1_10 <= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L79] RET assume_abort_if_not(var_1_10 <= 536870911) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L80] var_1_13 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L81] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L82] var_1_15 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L83] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L84] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L84] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L97] RET updateVariables() [L98] CALL step() [L38] var_1_12 = var_1_13 [L39] var_1_14 = var_1_15 VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L40] COND FALSE !(! var_1_14) [L43] var_1_6 = ((((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) + var_1_10) + var_1_7) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=2147483644, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L45] signed long int stepLocal_2 = var_1_7; [L46] signed long int stepLocal_1 = var_1_9; VAL [isInitial=1, stepLocal_1=536870912, stepLocal_2=1073741821, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=2147483644, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L47] COND FALSE !(var_1_8 <= stepLocal_2) VAL [isInitial=1, stepLocal_1=536870912, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=2147483644, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L54] unsigned char stepLocal_0 = var_1_14; VAL [isInitial=1, stepLocal_0=-255, stepLocal_1=536870912, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=2147483644, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L55] COND FALSE !(! var_1_11) VAL [isInitial=1, stepLocal_0=-255, stepLocal_1=536870912, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=2147483644, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return (((((! var_1_11) ? ((var_1_11 && var_1_14) ? (var_1_1 == ((unsigned char) (var_1_4 || var_1_5))) : 1) : 1) && ((! var_1_14) ? (var_1_6 == ((signed long int) (var_1_7 + var_1_8))) : (var_1_6 == ((signed long int) ((((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) + var_1_10) + var_1_7))))) && ((var_1_8 <= var_1_7) ? ((var_1_10 >= var_1_9) ? (var_1_11 == ((unsigned char) (! var_1_5))) : (var_1_11 == ((unsigned char) (var_1_14 || (! var_1_5))))) : 1)) && (var_1_12 == ((double) var_1_13))) && (var_1_14 == ((unsigned char) var_1_15)) ; VAL [\result=0, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=2147483644, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=2147483644, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] [L19] reach_error() VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=2147483649, var_1_13=2147483649, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=2147483644, var_1_7=1073741821, var_1_8=1073741822, var_1_9=536870912] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 3, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 227 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 130 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 384 ConstructedInterpolants, 0 QuantifiedInterpolants, 466 SizeOfPredicates, 1 NumberOfNonLiveVariables, 458 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1649/1680 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 22:58:55,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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 a29f19ee668a272ed21698ceeb530ae70127eecfee6eac63ae27dac8400ddad7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:58:59,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:58:59,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 22:58:59,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:58:59,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:58:59,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:58:59,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:58:59,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:58:59,225 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:58:59,225 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:58:59,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:58:59,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:58:59,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:58:59,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:58:59,228 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:58:59,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:58:59,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:58:59,228 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:58:59,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:58:59,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:58:59,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:58:59,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:58:59,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:58:59,229 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:58:59,229 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:58:59,229 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:58:59,229 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:58:59,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:58:59,231 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:58:59,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:58:59,232 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:58:59,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:58:59,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:58:59,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:58:59,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:58:59,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:58:59,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:58:59,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:58:59,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:58:59,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:58:59,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:58:59,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:58:59,234 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:58:59,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:58:59,235 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:58:59,235 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:58:59,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:58:59,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:58:59,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:58:59,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:58:59,236 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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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 -> a29f19ee668a272ed21698ceeb530ae70127eecfee6eac63ae27dac8400ddad7 [2024-11-23 22:58:59,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:58:59,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:58:59,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:58:59,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:58:59,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:58:59,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i [2024-11-23 22:59:03,119 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data/e636ae9f9/55f37b77ba4b49e9ac6cce0b05ab19c1/FLAGfefe99b21 [2024-11-23 22:59:03,430 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:59:03,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i [2024-11-23 22:59:03,443 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data/e636ae9f9/55f37b77ba4b49e9ac6cce0b05ab19c1/FLAGfefe99b21 [2024-11-23 22:59:03,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/data/e636ae9f9/55f37b77ba4b49e9ac6cce0b05ab19c1 [2024-11-23 22:59:03,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:59:03,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:59:03,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:59:03,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:59:03,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:59:03,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:59:03" (1/1) ... [2024-11-23 22:59:03,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdaaa89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:03, skipping insertion in model container [2024-11-23 22:59:03,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:59:03" (1/1) ... [2024-11-23 22:59:03,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:59:03,954 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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i[914,927] [2024-11-23 22:59:04,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:59:04,031 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:59:04,044 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_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-3.i[914,927] [2024-11-23 22:59:04,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:59:04,089 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:59:04,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04 WrapperNode [2024-11-23 22:59:04,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:59:04,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:59:04,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:59:04,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:59:04,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,150 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-23 22:59:04,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:59:04,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:59:04,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:59:04,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:59:04,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,170 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,183 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]. [2024-11-23 22:59:04,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,192 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:59:04,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:59:04,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:59:04,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:59:04,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (1/1) ... [2024-11-23 22:59:04,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:04,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:04,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:59:04,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:59:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:59:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:59:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:59:04,281 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:59:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:59:04,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:59:04,396 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:59:04,398 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:59:04,783 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-23 22:59:04,784 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:59:04,804 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:59:04,805 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:59:04,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:04 BoogieIcfgContainer [2024-11-23 22:59:04,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:59:04,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:59:04,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:59:04,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:59:04,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:59:03" (1/3) ... [2024-11-23 22:59:04,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb04aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:59:04, skipping insertion in model container [2024-11-23 22:59:04,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:04" (2/3) ... [2024-11-23 22:59:04,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb04aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:59:04, skipping insertion in model container [2024-11-23 22:59:04,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:04" (3/3) ... [2024-11-23 22:59:04,826 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-3.i [2024-11-23 22:59:04,846 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:59:04,849 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-3.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:59:04,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:59:04,927 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;@5b0ee162, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:59:04,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:59:04,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 22:59:04,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 22:59:04,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:04,944 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:04,945 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:04,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:04,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1440556874, now seen corresponding path program 1 times [2024-11-23 22:59:04,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:59:04,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860604958] [2024-11-23 22:59:04,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:04,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:59:04,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:59:05,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:59:05,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 22:59:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:05,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:59:05,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-23 22:59:05,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:05,284 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:59:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860604958] [2024-11-23 22:59:05,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860604958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:05,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:05,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:59:05,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194991072] [2024-11-23 22:59:05,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:05,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:59:05,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:59:05,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:59:05,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:59:05,318 INFO L87 Difference]: Start difference. First operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 22:59:05,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:05,347 INFO L93 Difference]: Finished difference Result 91 states and 151 transitions. [2024-11-23 22:59:05,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:59:05,350 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-23 22:59:05,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:05,356 INFO L225 Difference]: With dead ends: 91 [2024-11-23 22:59:05,356 INFO L226 Difference]: Without dead ends: 45 [2024-11-23 22:59:05,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:59:05,363 INFO L435 NwaCegarLoop]: 64 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, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:59:05,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:59:05,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-23 22:59:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-23 22:59:05,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 22:59:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2024-11-23 22:59:05,430 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 97 [2024-11-23 22:59:05,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:05,431 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2024-11-23 22:59:05,433 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 22:59:05,434 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2024-11-23 22:59:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 22:59:05,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:05,442 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:05,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 22:59:05,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:59:05,643 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:05,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:05,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1296867252, now seen corresponding path program 1 times [2024-11-23 22:59:05,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:59:05,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415750455] [2024-11-23 22:59:05,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:05,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:59:05,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:59:05,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:59:05,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 22:59:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:05,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:59:05,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 22:59:06,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:06,169 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:59:06,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415750455] [2024-11-23 22:59:06,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415750455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:06,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:06,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:59:06,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239479631] [2024-11-23 22:59:06,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:06,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:59:06,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:59:06,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:59:06,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:59:06,172 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 22:59:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:07,260 INFO L93 Difference]: Finished difference Result 121 states and 170 transitions. [2024-11-23 22:59:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:59:07,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-23 22:59:07,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:07,263 INFO L225 Difference]: With dead ends: 121 [2024-11-23 22:59:07,263 INFO L226 Difference]: Without dead ends: 79 [2024-11-23 22:59:07,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:59:07,265 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 106 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:59:07,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 218 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:59:07,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-23 22:59:07,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 74. [2024-11-23 22:59:07,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 22:59:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 103 transitions. [2024-11-23 22:59:07,289 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 103 transitions. Word has length 97 [2024-11-23 22:59:07,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:07,290 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 103 transitions. [2024-11-23 22:59:07,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-23 22:59:07,290 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 103 transitions. [2024-11-23 22:59:07,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 22:59:07,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:07,292 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:07,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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)] Forceful destruction successful, exit code 0 [2024-11-23 22:59:07,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:59:07,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:07,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:07,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1976925622, now seen corresponding path program 1 times [2024-11-23 22:59:07,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:59:07,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385794166] [2024-11-23 22:59:07,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:07,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:59:07,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:59:07,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:59:07,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-23 22:59:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:07,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 22:59:07,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:00:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 157 proven. 128 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-23 23:00:58,204 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:09,978 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:04:09,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385794166] [2024-11-23 23:04:09,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385794166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:09,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [560346307] [2024-11-23 23:04:09,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:09,979 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:04:09,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:04:09,992 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:04:09,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-23 23:04:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:10,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 23:04:10,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 245 proven. 36 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-23 23:04:58,725 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:08:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 39 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-23 23:08:17,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [560346307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:08:17,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:08:17,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 14] total 39 [2024-11-23 23:08:17,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406511809] [2024-11-23 23:08:17,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:08:17,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-23 23:08:17,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:08:17,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-23 23:08:17,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=1754, Unknown=0, NotChecked=0, Total=2256 [2024-11-23 23:08:17,828 INFO L87 Difference]: Start difference. First operand 74 states and 103 transitions. Second operand has 39 states, 39 states have (on average 2.641025641025641) internal successors, (103), 37 states have internal predecessors, (103), 9 states have call successors, (44), 7 states have call predecessors, (44), 14 states have return successors, (45), 10 states have call predecessors, (45), 9 states have call successors, (45) [2024-11-23 23:08:22,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:22,331 INFO L93 Difference]: Finished difference Result 145 states and 186 transitions. [2024-11-23 23:08:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 23:08:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.641025641025641) internal successors, (103), 37 states have internal predecessors, (103), 9 states have call successors, (44), 7 states have call predecessors, (44), 14 states have return successors, (45), 10 states have call predecessors, (45), 9 states have call successors, (45) Word has length 97 [2024-11-23 23:08:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:22,334 INFO L225 Difference]: With dead ends: 145 [2024-11-23 23:08:22,334 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:08:22,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 266 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1363 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1104, Invalid=3318, Unknown=0, NotChecked=0, Total=4422 [2024-11-23 23:08:22,344 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 73 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:22,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 225 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:08:22,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:08:22,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:08:22,348 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) [2024-11-23 23:08:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:08:22,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2024-11-23 23:08:22,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:22,349 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:08:22,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.641025641025641) internal successors, (103), 37 states have internal predecessors, (103), 9 states have call successors, (44), 7 states have call predecessors, (44), 14 states have return successors, (45), 10 states have call predecessors, (45), 9 states have call successors, (45) [2024-11-23 23:08:22,352 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:08:22,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:08:22,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:08:22,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:08:22,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-23 23:08:22,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 23:08:22,761 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 23:08:22,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:08:25,724 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:08:25,745 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-23 23:08:25,746 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-23 23:08:25,746 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-23 23:08:25,746 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-23 23:08:25,747 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 23:08:25,747 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-23 23:08:25,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:08:25 BoogieIcfgContainer [2024-11-23 23:08:25,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:08:25,751 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:08:25,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:08:25,752 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:08:25,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:04" (3/4) ... [2024-11-23 23:08:25,756 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:08:25,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-23 23:08:25,770 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-23 23:08:25,770 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-23 23:08:25,772 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:08:25,773 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:08:25,879 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:08:25,880 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:08:25,880 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:08:25,880 INFO L158 Benchmark]: Toolchain (without parser) took 562176.97ms. Allocated memory was 83.9MB in the beginning and 1.5GB in the end (delta: 1.5GB). Free memory was 59.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2024-11-23 23:08:25,881 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:08:25,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.33ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 47.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:08:25,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.67ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 45.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:08:25,882 INFO L158 Benchmark]: Boogie Preprocessor took 47.78ms. Allocated memory is still 83.9MB. Free memory was 45.3MB in the beginning and 43.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:08:25,882 INFO L158 Benchmark]: RCFGBuilder took 600.70ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 29.2MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:08:25,882 INFO L158 Benchmark]: TraceAbstraction took 560940.96ms. Allocated memory was 83.9MB in the beginning and 1.5GB in the end (delta: 1.5GB). Free memory was 28.6MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 896.6MB. Max. memory is 16.1GB. [2024-11-23 23:08:25,883 INFO L158 Benchmark]: Witness Printer took 128.40ms. Allocated memory is still 1.5GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:08:25,885 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.33ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 47.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.67ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 45.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.78ms. Allocated memory is still 83.9MB. Free memory was 45.3MB in the beginning and 43.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 600.70ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 29.2MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 560940.96ms. Allocated memory was 83.9MB in the beginning and 1.5GB in the end (delta: 1.5GB). Free memory was 28.6MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 896.6MB. Max. memory is 16.1GB. * Witness Printer took 128.40ms. Allocated memory is still 1.5GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.5MB). 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: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - 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, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 557.9s, OverallIterations: 3, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 507 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 338 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 802 IncrementalHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 169 mSDtfsCounter, 802 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 452 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1410 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=2, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 550.2s InterpolantComputationTime, 388 NumberOfCodeBlocks, 388 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 480 ConstructedInterpolants, 0 QuantifiedInterpolants, 4189 SizeOfPredicates, 40 NumberOfNonLiveVariables, 632 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 1897/2100 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: 95]: Loop Invariant Derived loop invariant: ((((var_1_5 <= 0) && (var_1_14 >= 1)) && (var_1_14 <= 1)) && (1 == var_1_11)) RESULT: Ultimate proved your program to be correct! [2024-11-23 23:08:25,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5382e5-50d8-480d-9d35-a9b6d3c60b09/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