./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd --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 aefc3819119098044c907ff26053410d2cb0cf50c17d46011b6486debfa94f96 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:52:20,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:52:20,611 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:52:20,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:52:20,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:52:20,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:52:20,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:52:20,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:52:20,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:52:20,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:52:20,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:52:20,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:52:20,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:52:20,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:52:20,653 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:52:20,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:52:20,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:52:20,655 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:52:20,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:52:20,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:52:20,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:52:20,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:52:20,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:52:20,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:52:20,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:20,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:52:20,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:52:20,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:52:20,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:52:20,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:52:20,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:52:20,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:52:20,659 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:52:20,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:52:20,660 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_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd 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 -> aefc3819119098044c907ff26053410d2cb0cf50c17d46011b6486debfa94f96 [2024-11-13 14:52:20,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:52:20,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:52:20,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:52:20,984 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:52:20,984 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:52:20,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i Unable to find full path for "g++" [2024-11-13 14:52:22,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:52:23,147 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:52:23,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i [2024-11-13 14:52:23,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/data/c7e0a987a/d37f5a145dbf42a6b79021d599a103d3/FLAGa39956cb4 [2024-11-13 14:52:23,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/data/c7e0a987a/d37f5a145dbf42a6b79021d599a103d3 [2024-11-13 14:52:23,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:52:23,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:52:23,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:23,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:52:23,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:52:23,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc6d327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23, skipping insertion in model container [2024-11-13 14:52:23,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:52:23,653 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_56e913dd-178d-41e7-bd77-e2b46992ab96/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i[913,926] [2024-11-13 14:52:23,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:23,748 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:52:23,760 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_56e913dd-178d-41e7-bd77-e2b46992ab96/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i[913,926] [2024-11-13 14:52:23,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:23,829 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:52:23,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23 WrapperNode [2024-11-13 14:52:23,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:23,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:23,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:52:23,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:52:23,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,919 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2024-11-13 14:52:23,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:23,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:52:23,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:52:23,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:52:23,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,958 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]. [2024-11-13 14:52:23,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:52:23,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:52:23,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:52:23,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:52:23,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (1/1) ... [2024-11-13 14:52:23,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:24,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:24,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:52:24,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:52:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:52:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:52:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:52:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:52:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:52:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:52:24,153 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:52:24,155 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:52:24,566 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-13 14:52:24,567 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:52:24,580 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:52:24,582 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:52:24,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:24 BoogieIcfgContainer [2024-11-13 14:52:24,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:52:24,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:52:24,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:52:24,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:52:24,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:52:23" (1/3) ... [2024-11-13 14:52:24,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d919371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:24, skipping insertion in model container [2024-11-13 14:52:24,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:23" (2/3) ... [2024-11-13 14:52:24,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d919371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:24, skipping insertion in model container [2024-11-13 14:52:24,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:24" (3/3) ... [2024-11-13 14:52:24,595 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-49.i [2024-11-13 14:52:24,612 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:52:24,614 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-49.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:52:24,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:52:24,697 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;@73683496, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:52:24,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:52:24,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 38 states have internal predecessors, (51), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 14:52:24,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:24,714 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:24,715 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:24,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:24,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1404969132, now seen corresponding path program 1 times [2024-11-13 14:52:24,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:24,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327340063] [2024-11-13 14:52:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:24,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:24,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:52:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:24,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:52:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:24,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:24,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:52:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:24,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:52:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:24,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 14:52:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:52:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:52:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 14:52:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:52:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 14:52:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:52:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:52:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 14:52:25,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:25,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327340063] [2024-11-13 14:52:25,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327340063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:25,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:25,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:25,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562149544] [2024-11-13 14:52:25,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:25,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:52:25,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:52:25,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:25,096 INFO L87 Difference]: Start difference. First operand has 54 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 38 states have internal predecessors, (51), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:25,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:25,126 INFO L93 Difference]: Finished difference Result 101 states and 166 transitions. [2024-11-13 14:52:25,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:52:25,128 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2024-11-13 14:52:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:25,136 INFO L225 Difference]: With dead ends: 101 [2024-11-13 14:52:25,136 INFO L226 Difference]: Without dead ends: 50 [2024-11-13 14:52:25,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:25,142 INFO L432 NwaCegarLoop]: 72 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, 72 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 [2024-11-13 14:52:25,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:52:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-13 14:52:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-13 14:52:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:25,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions. [2024-11-13 14:52:25,184 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 93 [2024-11-13 14:52:25,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:25,184 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 72 transitions. [2024-11-13 14:52:25,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 14:52:25,185 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2024-11-13 14:52:25,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 14:52:25,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:25,188 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:25,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:52:25,189 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:25,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:25,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1122498480, now seen corresponding path program 1 times [2024-11-13 14:52:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:25,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606792820] [2024-11-13 14:52:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:25,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:52:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:52:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:52:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:52:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:52:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 14:52:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:52:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:52:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 14:52:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:52:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 14:52:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:52:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:52:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:52:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:25,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:25,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606792820] [2024-11-13 14:52:25,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606792820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:25,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:25,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:52:25,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266083199] [2024-11-13 14:52:25,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:25,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:52:25,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:52:25,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:52:25,920 INFO L87 Difference]: Start difference. First operand 50 states and 72 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:26,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:26,199 INFO L93 Difference]: Finished difference Result 105 states and 148 transitions. [2024-11-13 14:52:26,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:52:26,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-11-13 14:52:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:26,201 INFO L225 Difference]: With dead ends: 105 [2024-11-13 14:52:26,201 INFO L226 Difference]: Without dead ends: 58 [2024-11-13 14:52:26,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:52:26,203 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 52 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:26,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 127 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:52:26,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-13 14:52:26,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2024-11-13 14:52:26,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:26,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2024-11-13 14:52:26,214 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 93 [2024-11-13 14:52:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:26,215 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2024-11-13 14:52:26,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2024-11-13 14:52:26,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 14:52:26,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:26,218 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:26,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:52:26,218 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:26,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:26,218 INFO L85 PathProgramCache]: Analyzing trace with hash -699198194, now seen corresponding path program 1 times [2024-11-13 14:52:26,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:26,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736579364] [2024-11-13 14:52:26,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:26,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:52:26,324 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:52:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:52:26,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:52:26,456 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:52:26,457 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:52:26,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:52:26,464 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 14:52:26,543 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:52:26,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:52:26 BoogieIcfgContainer [2024-11-13 14:52:26,551 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:52:26,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:52:26,552 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:52:26,552 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:52:26,553 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:24" (3/4) ... [2024-11-13 14:52:26,555 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:52:26,557 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:52:26,558 INFO L158 Benchmark]: Toolchain (without parser) took 3090.95ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 88.7MB in the end (delta: 30.3MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-13 14:52:26,559 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:26,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.90ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 105.3MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:52:26,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.43ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 101.5MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:52:26,562 INFO L158 Benchmark]: Boogie Preprocessor took 56.64ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 94.2MB in the end (delta: 7.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:26,562 INFO L158 Benchmark]: RCFGBuilder took 605.36ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 74.8MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:52:26,562 INFO L158 Benchmark]: TraceAbstraction took 1964.04ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 88.7MB in the end (delta: -14.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:26,563 INFO L158 Benchmark]: Witness Printer took 5.88ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 88.7MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:26,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.90ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 105.3MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.43ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 101.5MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.64ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 94.2MB in the end (delta: 7.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 605.36ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 74.8MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1964.04ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 88.7MB in the end (delta: -14.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.88ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 88.7MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 50, overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someBinaryFLOATComparisonOperation at line 66. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] float var_1_2 = 1000000000000000.4; [L24] float var_1_3 = 1000.2; [L25] unsigned short int var_1_4 = 256; [L26] unsigned short int var_1_5 = 4; [L27] unsigned short int var_1_6 = 10; [L28] signed short int var_1_8 = 128; [L29] signed short int var_1_9 = -2; [L30] unsigned char var_1_10 = 0; [L31] unsigned char var_1_11 = 0; [L32] unsigned char var_1_12 = 0; [L33] unsigned char var_1_13 = 1; VAL [isInitial=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=5000000000000002/5, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] FCALL updateLastVariables() [L99] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_float() [L66] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L66] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L67] var_1_3 = __VERIFIER_nondet_float() [L68] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L68] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L69] var_1_4 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L70] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L71] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L71] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L72] var_1_5 = __VERIFIER_nondet_ushort() [L73] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L73] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L74] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=10, var_1_8=128, var_1_9=-2] [L74] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=10, var_1_8=128, var_1_9=-2] [L75] var_1_6 = __VERIFIER_nondet_ushort() [L76] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_8=128, var_1_9=-2] [L76] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_8=128, var_1_9=-2] [L77] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=-2] [L77] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=-2] [L78] var_1_9 = __VERIFIER_nondet_short() [L79] CALL assume_abort_if_not(var_1_9 >= -32766) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L79] RET assume_abort_if_not(var_1_9 >= -32766) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_9 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L80] RET assume_abort_if_not(var_1_9 <= 32766) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L81] var_1_11 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L82] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L83] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L84] var_1_12 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L85] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L86] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=128, var_1_9=0] [L99] RET updateVariables() [L100] CALL step() [L37] var_1_8 = ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] [L38] EXPR 50 >> var_1_4 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] [L38] COND FALSE !((50 >> var_1_4) <= var_1_8) [L41] var_1_10 = (! var_1_11) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] [L43] COND TRUE ! var_1_12 VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] [L44] COND TRUE var_1_4 >= ((((var_1_6) < (var_1_8)) ? (var_1_6) : (var_1_8))) [L45] var_1_13 = (var_1_10 && var_1_11) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] [L50] COND FALSE !(var_1_2 >= 64.5f) [L61] var_1_1 = 50 VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR (((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11)))) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] [L91-L92] return ((((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11))))) && ((! var_1_12) ? ((var_1_4 >= ((((var_1_6) < (var_1_8)) ? (var_1_6) : (var_1_8)))) ? (var_1_13 == ((unsigned char) (var_1_10 && var_1_11))) : (var_1_13 == ((unsigned char) var_1_11))) : 1) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=1, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 199 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 124 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 728/728 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 14:52:26,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd --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 aefc3819119098044c907ff26053410d2cb0cf50c17d46011b6486debfa94f96 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:52:29,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:52:29,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 14:52:29,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:52:29,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:52:29,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:52:29,315 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:52:29,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:52:29,316 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:52:29,316 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:52:29,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:52:29,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:52:29,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:52:29,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:52:29,318 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:52:29,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:52:29,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:52:29,319 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:52:29,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:52:29,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:52:29,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:52:29,321 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:52:29,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:52:29,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:52:29,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:52:29,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:52:29,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:29,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:52:29,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:52:29,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:52:29,328 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:52:29,328 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:52:29,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:52:29,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:52:29,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:52:29,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:52:29,329 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_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd 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 -> aefc3819119098044c907ff26053410d2cb0cf50c17d46011b6486debfa94f96 [2024-11-13 14:52:29,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:52:29,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:52:29,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:52:29,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:52:29,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:52:29,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i Unable to find full path for "g++" [2024-11-13 14:52:31,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:52:31,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:52:31,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i [2024-11-13 14:52:31,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/data/30e02ef25/18787660be2149069b3dc6ca7e331a73/FLAGfc3592bcd [2024-11-13 14:52:32,186 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/data/30e02ef25/18787660be2149069b3dc6ca7e331a73 [2024-11-13 14:52:32,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:52:32,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:52:32,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:32,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:52:32,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:52:32,199 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c332fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32, skipping insertion in model container [2024-11-13 14:52:32,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:52:32,387 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_56e913dd-178d-41e7-bd77-e2b46992ab96/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i[913,926] [2024-11-13 14:52:32,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:32,486 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:52:32,496 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_56e913dd-178d-41e7-bd77-e2b46992ab96/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-49.i[913,926] [2024-11-13 14:52:32,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:32,569 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:52:32,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32 WrapperNode [2024-11-13 14:52:32,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:32,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:32,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:52:32,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:52:32,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,623 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2024-11-13 14:52:32,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:32,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:52:32,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:52:32,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:52:32,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,636 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,647 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]. [2024-11-13 14:52:32,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:52:32,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:52:32,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:52:32,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:52:32,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (1/1) ... [2024-11-13 14:52:32,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:32,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:32,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:52:32,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:52:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:52:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:52:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:52:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:52:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:52:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:52:32,812 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:52:32,813 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:52:33,062 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 14:52:33,062 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:52:33,072 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:52:33,072 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:52:33,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:33 BoogieIcfgContainer [2024-11-13 14:52:33,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:52:33,075 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:52:33,075 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:52:33,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:52:33,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:52:32" (1/3) ... [2024-11-13 14:52:33,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537bd51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:33, skipping insertion in model container [2024-11-13 14:52:33,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:32" (2/3) ... [2024-11-13 14:52:33,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537bd51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:33, skipping insertion in model container [2024-11-13 14:52:33,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:33" (3/3) ... [2024-11-13 14:52:33,083 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-49.i [2024-11-13 14:52:33,099 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:52:33,101 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-49.i that has 2 procedures, 47 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:52:33,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:52:33,186 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;@b4f7ff0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:52:33,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:52:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:33,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 14:52:33,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:33,203 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:33,204 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:33,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:33,208 INFO L85 PathProgramCache]: Analyzing trace with hash -834343704, now seen corresponding path program 1 times [2024-11-13 14:52:33,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:33,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240784] [2024-11-13 14:52:33,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:33,219 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 [2024-11-13 14:52:33,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:33,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 14:52:33,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 14:52:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:33,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 14:52:33,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-13 14:52:33,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:33,536 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:33,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240784] [2024-11-13 14:52:33,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:33,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:33,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:33,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565988992] [2024-11-13 14:52:33,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:33,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:52:33,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:52:33,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:33,570 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:33,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:33,592 INFO L93 Difference]: Finished difference Result 87 states and 146 transitions. [2024-11-13 14:52:33,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:52:33,594 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2024-11-13 14:52:33,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:33,599 INFO L225 Difference]: With dead ends: 87 [2024-11-13 14:52:33,599 INFO L226 Difference]: Without dead ends: 43 [2024-11-13 14:52:33,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:33,605 INFO L432 NwaCegarLoop]: 62 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, 62 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 [2024-11-13 14:52:33,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:52:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-13 14:52:33,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-13 14:52:33,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:33,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 62 transitions. [2024-11-13 14:52:33,643 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 62 transitions. Word has length 90 [2024-11-13 14:52:33,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:33,644 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 62 transitions. [2024-11-13 14:52:33,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:33,644 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2024-11-13 14:52:33,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 14:52:33,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:33,648 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:33,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 14:52:33,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 14:52:33,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:33,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:33,849 INFO L85 PathProgramCache]: Analyzing trace with hash -937704084, now seen corresponding path program 1 times [2024-11-13 14:52:33,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:33,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578793895] [2024-11-13 14:52:33,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:33,851 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 [2024-11-13 14:52:33,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:33,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 14:52:33,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 14:52:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:34,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:52:34,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 14:52:34,199 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:52:34,199 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:52:34,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578793895] [2024-11-13 14:52:34,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578793895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:34,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:34,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:52:34,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430839116] [2024-11-13 14:52:34,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:34,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:52:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:52:34,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:52:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:52:34,203 INFO L87 Difference]: Start difference. First operand 43 states and 62 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:34,503 INFO L93 Difference]: Finished difference Result 91 states and 128 transitions. [2024-11-13 14:52:34,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:52:34,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2024-11-13 14:52:34,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:34,507 INFO L225 Difference]: With dead ends: 91 [2024-11-13 14:52:34,508 INFO L226 Difference]: Without dead ends: 51 [2024-11-13 14:52:34,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:52:34,511 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 43 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:34,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 99 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:52:34,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-13 14:52:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2024-11-13 14:52:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 14:52:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 64 transitions. [2024-11-13 14:52:34,529 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 64 transitions. Word has length 90 [2024-11-13 14:52:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:34,530 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 64 transitions. [2024-11-13 14:52:34,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 14:52:34,530 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 64 transitions. [2024-11-13 14:52:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 14:52:34,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:34,533 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:34,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 14:52:34,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 14:52:34,734 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:34,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:34,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1854098801, now seen corresponding path program 1 times [2024-11-13 14:52:34,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:52:34,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636721572] [2024-11-13 14:52:34,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:34,735 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 [2024-11-13 14:52:34,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:52:34,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 14:52:34,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e913dd-178d-41e7-bd77-e2b46992ab96/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 14:52:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:34,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:52:34,921 INFO L278 TraceCheckSpWp]: Computing forward predicates...