./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:08:20,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:08:20,484 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:08:20,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:08:20,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:08:20,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:08:20,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:08:20,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:08:20,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:08:20,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:08:20,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:08:20,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:08:20,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:08:20,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:08:20,524 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:08:20,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:08:20,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:08:20,524 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:08:20,524 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:08:20,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:08:20,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:08:20,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:08:20,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:08:20,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:08:20,526 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:08:20,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:08:20,526 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:08:20,526 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:08:20,526 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:08:20,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:20,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:20,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:20,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:20,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:08:20,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:20,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:20,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:20,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:20,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:08:20,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:08:20,528 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:08:20,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:08:20,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:08:20,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:08:20,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:08:20,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:08:20,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:08:20,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:08:20,530 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_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd [2024-11-24 00:08:20,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:08:20,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:08:20,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:08:20,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:08:20,888 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:08:20,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-11-24 00:08:24,585 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data/1e2f57b15/0e3fbfd00c0443bc9021aab0bd20a1b2/FLAG9188be940 [2024-11-24 00:08:24,874 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:08:24,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-11-24 00:08:24,885 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data/1e2f57b15/0e3fbfd00c0443bc9021aab0bd20a1b2/FLAG9188be940 [2024-11-24 00:08:24,905 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data/1e2f57b15/0e3fbfd00c0443bc9021aab0bd20a1b2 [2024-11-24 00:08:24,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:08:24,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:08:24,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:24,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:08:24,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:08:24,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:24" (1/1) ... [2024-11-24 00:08:24,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12580005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:24, skipping insertion in model container [2024-11-24 00:08:24,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:24" (1/1) ... [2024-11-24 00:08:24,944 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:08:25,154 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_efe0ab5c-baf8-4ddb-b754-b573a60c9799/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2024-11-24 00:08:25,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:25,245 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:08:25,258 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_efe0ab5c-baf8-4ddb-b754-b573a60c9799/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2024-11-24 00:08:25,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:25,314 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:08:25,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25 WrapperNode [2024-11-24 00:08:25,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:25,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:25,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:08:25,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:08:25,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,391 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2024-11-24 00:08:25,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:25,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:08:25,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:08:25,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:08:25,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,450 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:08:25,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,463 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:08:25,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:08:25,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:08:25,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:08:25,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (1/1) ... [2024-11-24 00:08:25,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:25,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:25,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:08:25,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:08:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:08:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:08:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:08:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:08:25,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:08:25,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:08:25,660 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:08:25,662 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:08:26,074 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-24 00:08:26,075 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:08:26,087 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:08:26,088 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:08:26,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:26 BoogieIcfgContainer [2024-11-24 00:08:26,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:08:26,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:08:26,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:08:26,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:08:26,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:08:24" (1/3) ... [2024-11-24 00:08:26,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a1ba0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:26, skipping insertion in model container [2024-11-24 00:08:26,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:25" (2/3) ... [2024-11-24 00:08:26,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a1ba0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:26, skipping insertion in model container [2024-11-24 00:08:26,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:26" (3/3) ... [2024-11-24 00:08:26,103 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-11-24 00:08:26,124 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:08:26,125 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-18.i that has 2 procedures, 62 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:08:26,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:08:26,227 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;@4cb70fdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:08:26,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:08:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 44 states have internal predecessors, (60), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:08:26,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:08:26,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:26,252 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:26,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:26,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:26,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1454587878, now seen corresponding path program 1 times [2024-11-24 00:08:26,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:26,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715810215] [2024-11-24 00:08:26,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:26,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 00:08:26,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:26,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715810215] [2024-11-24 00:08:26,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715810215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:08:26,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504916588] [2024-11-24 00:08:26,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:26,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:26,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:26,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:08:26,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:08:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:26,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:08:26,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 00:08:26,958 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:26,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504916588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:26,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:08:26,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:08:26,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641880230] [2024-11-24 00:08:26,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:26,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:08:26,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:26,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:08:26,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:27,000 INFO L87 Difference]: Start difference. First operand has 62 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 44 states have internal predecessors, (60), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:08:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:27,041 INFO L93 Difference]: Finished difference Result 121 states and 197 transitions. [2024-11-24 00:08:27,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:08:27,043 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2024-11-24 00:08:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:27,050 INFO L225 Difference]: With dead ends: 121 [2024-11-24 00:08:27,050 INFO L226 Difference]: Without dead ends: 58 [2024-11-24 00:08:27,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:27,058 INFO L435 NwaCegarLoop]: 89 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, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:27,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:27,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-24 00:08:27,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-24 00:08:27,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:08:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2024-11-24 00:08:27,108 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 107 [2024-11-24 00:08:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:27,108 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2024-11-24 00:08:27,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:08:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2024-11-24 00:08:27,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:08:27,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:27,113 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:27,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:08:27,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:27,314 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:27,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash 590765414, now seen corresponding path program 1 times [2024-11-24 00:08:27,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:27,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044372369] [2024-11-24 00:08:27,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:27,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:28,065 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:08:28,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:28,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044372369] [2024-11-24 00:08:28,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044372369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:28,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:28,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:08:28,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223555780] [2024-11-24 00:08:28,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:28,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:08:28,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:28,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:08:28,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:28,073 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:28,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:28,444 INFO L93 Difference]: Finished difference Result 170 states and 251 transitions. [2024-11-24 00:08:28,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:08:28,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107 [2024-11-24 00:08:28,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:28,450 INFO L225 Difference]: With dead ends: 170 [2024-11-24 00:08:28,450 INFO L226 Difference]: Without dead ends: 115 [2024-11-24 00:08:28,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:08:28,454 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 64 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:28,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 202 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:08:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-24 00:08:28,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 105. [2024-11-24 00:08:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 00:08:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 154 transitions. [2024-11-24 00:08:28,500 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 154 transitions. Word has length 107 [2024-11-24 00:08:28,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:28,500 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 154 transitions. [2024-11-24 00:08:28,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:28,501 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 154 transitions. [2024-11-24 00:08:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:08:28,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:28,503 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:28,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:08:28,505 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:28,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:28,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1608071440, now seen corresponding path program 1 times [2024-11-24 00:08:28,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:28,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36826229] [2024-11-24 00:08:28,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:28,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:08:29,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:29,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36826229] [2024-11-24 00:08:29,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36826229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:29,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:29,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:08:29,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026100383] [2024-11-24 00:08:29,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:29,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:08:29,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:29,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:08:29,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:08:29,056 INFO L87 Difference]: Start difference. First operand 105 states and 154 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:29,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:29,210 INFO L93 Difference]: Finished difference Result 192 states and 281 transitions. [2024-11-24 00:08:29,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:08:29,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-24 00:08:29,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:29,218 INFO L225 Difference]: With dead ends: 192 [2024-11-24 00:08:29,219 INFO L226 Difference]: Without dead ends: 128 [2024-11-24 00:08:29,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:08:29,221 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 33 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:29,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 173 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:08:29,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-24 00:08:29,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 103. [2024-11-24 00:08:29,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 68 states have (on average 1.25) internal successors, (85), 68 states have internal predecessors, (85), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 00:08:29,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2024-11-24 00:08:29,273 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 111 [2024-11-24 00:08:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:29,274 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2024-11-24 00:08:29,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2024-11-24 00:08:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:08:29,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:29,280 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:29,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:08:29,280 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:29,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:29,282 INFO L85 PathProgramCache]: Analyzing trace with hash -882690115, now seen corresponding path program 1 times [2024-11-24 00:08:29,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:29,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390195718] [2024-11-24 00:08:29,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:29,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:30,427 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:08:30,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:30,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390195718] [2024-11-24 00:08:30,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390195718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:30,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:30,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:08:30,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100629838] [2024-11-24 00:08:30,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:30,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:08:30,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:30,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:08:30,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:08:30,434 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:30,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:30,795 INFO L93 Difference]: Finished difference Result 196 states and 281 transitions. [2024-11-24 00:08:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:08:30,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 112 [2024-11-24 00:08:30,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:30,800 INFO L225 Difference]: With dead ends: 196 [2024-11-24 00:08:30,800 INFO L226 Difference]: Without dead ends: 128 [2024-11-24 00:08:30,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:08:30,803 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 95 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:30,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 196 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:08:30,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-24 00:08:30,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 119. [2024-11-24 00:08:30,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 84 states have internal predecessors, (107), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 00:08:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2024-11-24 00:08:30,850 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 171 transitions. Word has length 112 [2024-11-24 00:08:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:30,850 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 171 transitions. [2024-11-24 00:08:30,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 171 transitions. [2024-11-24 00:08:30,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:08:30,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:30,855 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:30,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:08:30,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:30,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash -566034441, now seen corresponding path program 1 times [2024-11-24 00:08:30,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:30,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523627731] [2024-11-24 00:08:30,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:30,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:08:30,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803970525] [2024-11-24 00:08:30,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:30,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:30,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:30,976 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:08:30,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:08:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:08:31,117 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:08:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:08:31,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:08:31,292 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:08:31,293 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:08:31,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:08:31,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:31,504 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-24 00:08:31,622 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:08:31,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:08:31 BoogieIcfgContainer [2024-11-24 00:08:31,627 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:08:31,628 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:08:31,629 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:08:31,629 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:08:31,630 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:26" (3/4) ... [2024-11-24 00:08:31,634 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:08:31,637 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:08:31,638 INFO L158 Benchmark]: Toolchain (without parser) took 6728.38ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 92.3MB in the beginning and 148.4MB in the end (delta: -56.1MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-11-24 00:08:31,638 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:08:31,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.85ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.7MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:08:31,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.83ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:08:31,641 INFO L158 Benchmark]: Boogie Preprocessor took 94.35ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:08:31,642 INFO L158 Benchmark]: RCFGBuilder took 601.10ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 58.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:08:31,642 INFO L158 Benchmark]: TraceAbstraction took 5535.45ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 57.7MB in the beginning and 148.5MB in the end (delta: -90.7MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2024-11-24 00:08:31,642 INFO L158 Benchmark]: Witness Printer took 8.95ms. Allocated memory is still 184.5MB. Free memory was 148.5MB in the beginning and 148.4MB in the end (delta: 36.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:08:31,646 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 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.85ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.7MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.83ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 94.35ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 601.10ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 58.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5535.45ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 57.7MB in the beginning and 148.5MB in the end (delta: -90.7MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. * Witness Printer took 8.95ms. Allocated memory is still 184.5MB. Free memory was 148.5MB in the beginning and 148.4MB in the end (delta: 36.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseOr at line 99, overapproximation of bitwiseOr at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_6 = 32; [L24] signed short int var_1_7 = 18477; [L25] signed short int var_1_8 = 5; [L26] float var_1_9 = 100.8; [L27] unsigned long int var_1_10 = 256; [L28] unsigned char var_1_11 = 0; [L29] unsigned char var_1_12 = 10; [L30] unsigned long int var_1_13 = 1879106797; [L31] unsigned long int var_1_14 = 1581421231; [L32] signed long int var_1_15 = -32; [L33] unsigned long int last_1_var_1_10 = 256; [L34] signed long int last_1_var_1_15 = -32; VAL [isInitial=0, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L103] isInitial = 1 [L104] FCALL initially() [L105] int k_loop; [L106] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L106] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L107] CALL updateLastVariables() [L95] last_1_var_1_10 = var_1_10 [L96] last_1_var_1_15 = var_1_15 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L107] RET updateLastVariables() [L108] CALL updateVariables() [L69] var_1_6 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L70] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L72] var_1_7 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L73] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L75] var_1_8 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L76] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L77] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L77] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L78] var_1_9 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L79] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L80] var_1_11 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L81] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L82] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L82] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L83] var_1_12 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L84] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L85] CALL assume_abort_if_not(var_1_12 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L85] RET assume_abort_if_not(var_1_12 <= 255) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L86] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L86] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L87] var_1_13 = __VERIFIER_nondet_ulong() [L88] CALL assume_abort_if_not(var_1_13 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L88] RET assume_abort_if_not(var_1_13 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L89] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L89] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L90] var_1_14 = __VERIFIER_nondet_ulong() [L91] CALL assume_abort_if_not(var_1_14 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L91] RET assume_abort_if_not(var_1_14 >= 1073741824) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L92] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L92] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L108] RET updateVariables() [L109] CALL step() [L38] unsigned long int stepLocal_1 = last_1_var_1_10; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L39] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L39] unsigned long int stepLocal_0 = last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))); [L40] COND FALSE !(stepLocal_0 != last_1_var_1_10) [L45] var_1_1 = var_1_9 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L47] signed short int stepLocal_2 = var_1_6; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, var_1_10=256, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L48] COND FALSE !(\read(var_1_11)) [L55] var_1_10 = var_1_7 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, var_1_10=16383, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L57] unsigned long int stepLocal_3 = var_1_10; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, stepLocal_3=16383, var_1_10=16383, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L58] COND FALSE !(var_1_1 <= var_1_9) [L65] var_1_15 = var_1_7 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, stepLocal_3=16383, var_1_10=16383, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L109] RET step() [L110] CALL, EXPR property() [L99] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L99-L100] return ((((last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10)))) != last_1_var_1_10) ? ((last_1_var_1_10 == (var_1_6 - (var_1_7 - var_1_8))) ? (var_1_1 == ((float) var_1_9)) : 1) : (var_1_1 == ((float) var_1_9))) && (var_1_11 ? (((var_1_7 % var_1_12) >= var_1_6) ? (var_1_10 == ((unsigned long int) ((var_1_13 + var_1_14) - var_1_7))) : (var_1_10 == ((unsigned long int) var_1_12))) : (var_1_10 == ((unsigned long int) var_1_7)))) && ((var_1_1 <= var_1_9) ? ((var_1_10 > (last_1_var_1_15 + (var_1_10 + var_1_7))) ? (var_1_15 == ((signed long int) var_1_7)) : (var_1_15 == ((signed long int) -5))) : (var_1_15 == ((signed long int) var_1_7))) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=202, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 660 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 363 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 297 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 44 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 770 NumberOfCodeBlocks, 770 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 1304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 254 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2370/2400 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:08:31,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:08:34,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:08:35,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:08:35,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:08:35,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:08:35,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:08:35,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:08:35,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:08:35,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:08:35,148 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:08:35,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:08:35,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:08:35,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:08:35,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:08:35,151 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:08:35,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:08:35,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:08:35,152 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:08:35,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:08:35,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:08:35,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:08:35,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:08:35,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:08:35,153 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:08:35,153 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:08:35,153 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:08:35,154 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:08:35,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:08:35,154 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:08:35,154 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:08:35,154 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:08:35,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:35,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:35,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:35,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:35,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:08:35,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:35,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:35,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:35,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:35,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:08:35,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:08:35,159 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:08:35,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:08:35,159 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:08:35,159 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:08:35,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:08:35,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:08:35,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:08:35,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:08:35,160 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_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd [2024-11-24 00:08:35,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:08:35,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:08:35,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:08:35,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:08:35,597 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:08:35,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-11-24 00:08:39,216 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data/1b27b4e67/ea7f7d12b48b4b9f92812c2e91faf1e2/FLAG701984274 [2024-11-24 00:08:39,583 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:08:39,585 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-11-24 00:08:39,600 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data/1b27b4e67/ea7f7d12b48b4b9f92812c2e91faf1e2/FLAG701984274 [2024-11-24 00:08:39,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/data/1b27b4e67/ea7f7d12b48b4b9f92812c2e91faf1e2 [2024-11-24 00:08:39,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:08:39,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:08:39,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:39,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:08:39,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:08:39,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:39" (1/1) ... [2024-11-24 00:08:39,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701437e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:39, skipping insertion in model container [2024-11-24 00:08:39,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:39" (1/1) ... [2024-11-24 00:08:39,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:08:39,917 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_efe0ab5c-baf8-4ddb-b754-b573a60c9799/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2024-11-24 00:08:40,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:40,030 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:08:40,048 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_efe0ab5c-baf8-4ddb-b754-b573a60c9799/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2024-11-24 00:08:40,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:40,122 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:08:40,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40 WrapperNode [2024-11-24 00:08:40,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:40,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:40,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:08:40,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:08:40,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,172 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-11-24 00:08:40,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:40,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:08:40,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:08:40,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:08:40,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,192 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,214 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:08:40,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,223 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:08:40,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:08:40,249 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:08:40,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:08:40,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (1/1) ... [2024-11-24 00:08:40,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:40,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:40,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:08:40,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:08:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:08:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:08:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:08:40,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:08:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:08:40,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:08:40,443 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:08:40,445 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:08:40,868 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-24 00:08:40,869 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:08:40,883 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:08:40,884 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:08:40,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:40 BoogieIcfgContainer [2024-11-24 00:08:40,884 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:08:40,887 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:08:40,887 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:08:40,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:08:40,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:08:39" (1/3) ... [2024-11-24 00:08:40,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c436fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:40, skipping insertion in model container [2024-11-24 00:08:40,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:40" (2/3) ... [2024-11-24 00:08:40,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c436fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:40, skipping insertion in model container [2024-11-24 00:08:40,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:40" (3/3) ... [2024-11-24 00:08:40,896 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-11-24 00:08:40,911 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:08:40,912 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-18.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:08:40,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:08:40,985 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;@472e5a70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:08:40,985 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:08:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:08:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:08:40,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:40,999 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:41,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:41,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:41,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1909201792, now seen corresponding path program 1 times [2024-11-24 00:08:41,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:41,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790548347] [2024-11-24 00:08:41,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:41,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:41,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:41,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:08:41,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:08:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:41,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:08:41,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-24 00:08:41,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:41,418 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:41,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790548347] [2024-11-24 00:08:41,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790548347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:41,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:41,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:08:41,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899326917] [2024-11-24 00:08:41,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:41,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:08:41,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:41,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:08:41,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:41,462 INFO L87 Difference]: Start difference. First operand has 52 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:08:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:41,492 INFO L93 Difference]: Finished difference Result 101 states and 165 transitions. [2024-11-24 00:08:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:08:41,494 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2024-11-24 00:08:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:41,502 INFO L225 Difference]: With dead ends: 101 [2024-11-24 00:08:41,503 INFO L226 Difference]: Without dead ends: 48 [2024-11-24 00:08:41,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:41,510 INFO L435 NwaCegarLoop]: 73 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, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:41,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-24 00:08:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-24 00:08:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:08:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-11-24 00:08:41,565 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 103 [2024-11-24 00:08:41,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:41,566 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-11-24 00:08:41,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:08:41,566 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-11-24 00:08:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:08:41,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:41,571 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:41,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 00:08:41,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:41,772 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:41,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1418069760, now seen corresponding path program 1 times [2024-11-24 00:08:41,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:41,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498666397] [2024-11-24 00:08:41,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:41,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:41,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:41,777 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:08:41,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:08:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:42,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:08:42,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:43,526 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:08:43,526 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:43,526 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:43,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498666397] [2024-11-24 00:08:43,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498666397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:43,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:43,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:08:43,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778572301] [2024-11-24 00:08:43,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:43,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:08:43,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:43,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:08:43,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:08:43,533 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:44,084 INFO L93 Difference]: Finished difference Result 140 states and 203 transitions. [2024-11-24 00:08:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:08:44,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2024-11-24 00:08:44,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:44,092 INFO L225 Difference]: With dead ends: 140 [2024-11-24 00:08:44,092 INFO L226 Difference]: Without dead ends: 95 [2024-11-24 00:08:44,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:08:44,094 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 42 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:44,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 208 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:08:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-24 00:08:44,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 80. [2024-11-24 00:08:44,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 00:08:44,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 116 transitions. [2024-11-24 00:08:44,157 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 116 transitions. Word has length 103 [2024-11-24 00:08:44,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:44,158 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 116 transitions. [2024-11-24 00:08:44,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:44,160 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 116 transitions. [2024-11-24 00:08:44,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:08:44,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:44,164 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:44,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 00:08:44,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:44,365 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:44,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:44,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1221041453, now seen corresponding path program 1 times [2024-11-24 00:08:44,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:44,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265317826] [2024-11-24 00:08:44,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:44,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:44,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:44,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:08:44,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 00:08:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:44,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:08:44,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:08:57,218 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:57,218 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:57,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265317826] [2024-11-24 00:08:57,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265317826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:57,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:57,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:08:57,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803217718] [2024-11-24 00:08:57,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:57,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:08:57,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:57,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:08:57,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:08:57,225 INFO L87 Difference]: Start difference. First operand 80 states and 116 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:58,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:58,495 INFO L93 Difference]: Finished difference Result 128 states and 175 transitions. [2024-11-24 00:08:58,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:08:58,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-24 00:08:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:58,503 INFO L225 Difference]: With dead ends: 128 [2024-11-24 00:08:58,503 INFO L226 Difference]: Without dead ends: 126 [2024-11-24 00:08:58,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:08:58,508 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 76 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:58,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 348 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:08:58,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-24 00:08:58,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 88. [2024-11-24 00:08:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 00:08:58,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2024-11-24 00:08:58,550 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 104 [2024-11-24 00:08:58,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:58,551 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2024-11-24 00:08:58,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:08:58,551 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2024-11-24 00:08:58,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:08:58,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:58,556 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:58,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-24 00:08:58,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:58,757 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:58,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:58,758 INFO L85 PathProgramCache]: Analyzing trace with hash 540983083, now seen corresponding path program 1 times [2024-11-24 00:08:58,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:58,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207085185] [2024-11-24 00:08:58,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:58,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:58,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:58,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:08:58,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 00:08:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:58,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:08:58,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:00,533 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 252 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-24 00:09:00,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:09:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-24 00:09:01,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:09:01,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207085185] [2024-11-24 00:09:01,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207085185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:09:01,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:09:01,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-24 00:09:01,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422711947] [2024-11-24 00:09:01,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:09:01,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:09:01,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:09:01,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:09:01,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:09:01,033 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-24 00:09:02,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:02,987 INFO L93 Difference]: Finished difference Result 205 states and 276 transitions. [2024-11-24 00:09:02,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:09:02,988 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 104 [2024-11-24 00:09:02,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:02,991 INFO L225 Difference]: With dead ends: 205 [2024-11-24 00:09:02,991 INFO L226 Difference]: Without dead ends: 160 [2024-11-24 00:09:02,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:09:02,993 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 129 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:02,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 238 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:09:02,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-24 00:09:03,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 124. [2024-11-24 00:09:03,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 80 states have internal predecessors, (92), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:09:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 168 transitions. [2024-11-24 00:09:03,030 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 168 transitions. Word has length 104 [2024-11-24 00:09:03,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:03,031 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 168 transitions. [2024-11-24 00:09:03,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-24 00:09:03,031 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 168 transitions. [2024-11-24 00:09:03,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:09:03,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:03,033 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:03,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-24 00:09:03,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:03,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:03,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:03,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1037980916, now seen corresponding path program 1 times [2024-11-24 00:09:03,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:09:03,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639086204] [2024-11-24 00:09:03,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:03,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:03,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:09:03,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:09:03,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 00:09:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:03,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:09:03,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 123 proven. 39 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-24 00:09:04,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:09:04,746 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:09:04,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639086204] [2024-11-24 00:09:04,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639086204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:09:04,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1200924806] [2024-11-24 00:09:04,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:04,746 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:09:04,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:09:04,751 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:09:04,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-24 00:09:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:05,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:09:05,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:09:58,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:09:58,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1200924806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:58,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:09:58,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 18 [2024-11-24 00:09:58,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018714121] [2024-11-24 00:09:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:58,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:09:58,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:09:58,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:09:58,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:09:58,513 INFO L87 Difference]: Start difference. First operand 124 states and 168 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:09:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:59,931 INFO L93 Difference]: Finished difference Result 158 states and 206 transitions. [2024-11-24 00:09:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:09:59,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-24 00:09:59,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:59,935 INFO L225 Difference]: With dead ends: 158 [2024-11-24 00:09:59,935 INFO L226 Difference]: Without dead ends: 156 [2024-11-24 00:09:59,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:09:59,937 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:59,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 421 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:09:59,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-24 00:09:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 130. [2024-11-24 00:09:59,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 86 states have internal predecessors, (100), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:09:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 176 transitions. [2024-11-24 00:09:59,980 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 176 transitions. Word has length 105 [2024-11-24 00:09:59,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:59,983 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 176 transitions. [2024-11-24 00:09:59,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:09:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 176 transitions. [2024-11-24 00:09:59,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:09:59,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:59,988 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:59,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-24 00:10:00,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-24 00:10:00,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:10:00,393 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:00,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:00,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1036133874, now seen corresponding path program 1 times [2024-11-24 00:10:00,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:00,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849765566] [2024-11-24 00:10:00,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:00,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:00,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:00,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:10:00,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-24 00:10:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:00,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:10:00,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:08,951 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 123 proven. 39 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-24 00:10:08,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:58,958 WARN L286 SmtUtils]: Spent 12.27s on a formula simplification that was a NOOP. DAG size: 238 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:13:14,735 WARN L286 SmtUtils]: Spent 7.76s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:13:48,077 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:13:48,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849765566] [2024-11-24 00:13:48,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849765566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:48,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [463823369] [2024-11-24 00:13:48,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:48,078 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:13:48,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:13:48,080 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:13:48,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-24 00:13:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:48,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:13:48,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:14:28,763 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:14:28,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [463823369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:14:28,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:14:28,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2024-11-24 00:14:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300732243] [2024-11-24 00:14:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:28,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:14:28,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:14:28,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:14:28,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2024-11-24 00:14:28,766 INFO L87 Difference]: Start difference. First operand 130 states and 176 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:14:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:30,526 INFO L93 Difference]: Finished difference Result 158 states and 205 transitions. [2024-11-24 00:14:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:14:30,527 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-24 00:14:30,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:14:30,529 INFO L225 Difference]: With dead ends: 158 [2024-11-24 00:14:30,529 INFO L226 Difference]: Without dead ends: 156 [2024-11-24 00:14:30,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 55.8s TimeCoverageRelationStatistics Valid=183, Invalid=873, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:14:30,531 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 40 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:14:30,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 363 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:14:30,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-24 00:14:30,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 130. [2024-11-24 00:14:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 86 states have internal predecessors, (100), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:14:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 176 transitions. [2024-11-24 00:14:30,559 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 176 transitions. Word has length 105 [2024-11-24 00:14:30,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:14:30,560 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 176 transitions. [2024-11-24 00:14:30,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:14:30,560 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 176 transitions. [2024-11-24 00:14:30,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:14:30,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:14:30,562 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:30,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-24 00:14:30,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-24 00:14:30,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:14:30,963 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:14:30,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash 200577269, now seen corresponding path program 1 times [2024-11-24 00:14:30,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:14:30,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581271489] [2024-11-24 00:14:30,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:30,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:14:30,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:14:30,967 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:14:30,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-24 00:14:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:31,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:14:31,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 00:14:41,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:17:43,254 WARN L286 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 176 DAG size of output: 113 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:17:54,568 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:17:54,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581271489] [2024-11-24 00:17:54,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581271489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:17:54,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2038883429] [2024-11-24 00:17:54,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:17:54,569 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:17:54,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:17:54,571 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:17:54,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-24 00:17:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:17:55,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:17:55,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:18:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 282 proven. 48 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-24 00:18:32,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:21:50,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2038883429] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:50,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:21:50,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 17] total 37 [2024-11-24 00:21:50,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622404761] [2024-11-24 00:21:50,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:50,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:21:50,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:21:50,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:21:50,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1507, Unknown=4, NotChecked=0, Total=1722 [2024-11-24 00:21:50,387 INFO L87 Difference]: Start difference. First operand 130 states and 176 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:22:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:19,818 INFO L93 Difference]: Finished difference Result 159 states and 208 transitions. [2024-11-24 00:22:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:22:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-24 00:22:19,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:19,822 INFO L225 Difference]: With dead ends: 159 [2024-11-24 00:22:19,822 INFO L226 Difference]: Without dead ends: 157 [2024-11-24 00:22:19,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 285 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 70.2s TimeCoverageRelationStatistics Valid=291, Invalid=2057, Unknown=4, NotChecked=0, Total=2352 [2024-11-24 00:22:19,824 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 56 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:19,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 400 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-24 00:22:19,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-24 00:22:19,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 132. [2024-11-24 00:22:19,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 87 states have (on average 1.1839080459770115) internal successors, (103), 88 states have internal predecessors, (103), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:22:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 179 transitions. [2024-11-24 00:22:19,858 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 179 transitions. Word has length 105 [2024-11-24 00:22:19,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:19,858 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 179 transitions. [2024-11-24 00:22:19,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:22:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 179 transitions. [2024-11-24 00:22:19,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:22:19,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:19,860 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:19,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-24 00:22:20,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-24 00:22:20,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:22:20,261 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:20,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1975584631, now seen corresponding path program 1 times [2024-11-24 00:22:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:22:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658143418] [2024-11-24 00:22:20,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:22:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:22:20,264 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:22:20,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe0ab5c-baf8-4ddb-b754-b573a60c9799/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-24 00:22:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:20,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:22:20,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 00:22:26,376 INFO L312 TraceCheckSpWp]: Computing backward predicates...