./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB --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 64bit --witnessprinter.graph.data.programhash ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:54:01,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:54:01,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 19:54:01,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:54:01,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:54:01,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:54:01,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:54:01,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:54:01,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:54:01,262 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:54:01,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:54:01,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:54:01,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:54:01,264 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:54:01,264 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:54:01,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:54:01,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:54:01,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:54:01,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:54:01,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:54:01,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:54:01,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:54:01,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:54:01,266 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:54:01,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:54:01,267 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:54:01,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:54:01,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:54:01,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:54:01,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:01,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:54:01,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:01,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:54:01,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:54:01,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:54:01,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:54:01,269 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_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 [2024-11-27 19:54:01,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:54:01,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:54:01,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:54:01,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:54:01,635 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:54:01,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2024-11-27 19:54:04,691 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data/17949be19/8bf13e0867594b04a54b22b323d29f93/FLAGfb82f6842 [2024-11-27 19:54:05,080 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:54:05,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2024-11-27 19:54:05,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data/17949be19/8bf13e0867594b04a54b22b323d29f93/FLAGfb82f6842 [2024-11-27 19:54:05,134 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data/17949be19/8bf13e0867594b04a54b22b323d29f93 [2024-11-27 19:54:05,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:54:05,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:54:05,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:54:05,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:54:05,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:54:05,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d13cf45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05, skipping insertion in model container [2024-11-27 19:54:05,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:54:05,390 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_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1245,1258] [2024-11-27 19:54:05,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:54:05,517 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:54:05,530 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_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1245,1258] [2024-11-27 19:54:05,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:54:05,581 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:54:05,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05 WrapperNode [2024-11-27 19:54:05,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:54:05,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:54:05,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:54:05,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:54:05,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,673 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 258 [2024-11-27 19:54:05,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:54:05,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:54:05,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:54:05,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:54:05,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,737 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-27 19:54:05,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:54:05,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:54:05,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:54:05,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:54:05,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (1/1) ... [2024-11-27 19:54:05,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:05,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:05,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:54:05,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:54:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:54:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:54:05,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 19:54:05,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:54:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:54:06,022 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:54:06,026 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:54:06,824 INFO L? ?]: Removed 124 outVars from TransFormulas that were not future-live. [2024-11-27 19:54:06,824 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:54:06,840 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:54:06,841 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 19:54:06,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:54:06 BoogieIcfgContainer [2024-11-27 19:54:06,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:54:06,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:54:06,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:54:06,853 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:54:06,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:54:05" (1/3) ... [2024-11-27 19:54:06,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62323093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:54:06, skipping insertion in model container [2024-11-27 19:54:06,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:05" (2/3) ... [2024-11-27 19:54:06,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62323093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:54:06, skipping insertion in model container [2024-11-27 19:54:06,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:54:06" (3/3) ... [2024-11-27 19:54:06,857 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b06.c [2024-11-27 19:54:06,877 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:54:06,878 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_b06.c that has 1 procedures, 62 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:54:06,958 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:54:06,980 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;@3f613819, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:54:06,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:54:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 61 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:06,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 19:54:06,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:06,996 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:06,997 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:07,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:07,004 INFO L85 PathProgramCache]: Analyzing trace with hash 234501229, now seen corresponding path program 1 times [2024-11-27 19:54:07,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:07,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158106647] [2024-11-27 19:54:07,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:07,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:54:07,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:07,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158106647] [2024-11-27 19:54:07,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158106647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:07,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:07,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:54:07,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355872999] [2024-11-27 19:54:07,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:07,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:54:07,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:07,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:54:07,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:07,931 INFO L87 Difference]: Start difference. First operand has 62 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 61 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:07,978 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2024-11-27 19:54:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:54:07,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-27 19:54:07,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:07,988 INFO L225 Difference]: With dead ends: 105 [2024-11-27 19:54:07,989 INFO L226 Difference]: Without dead ends: 61 [2024-11-27 19:54:07,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:07,995 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:07,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:08,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-27 19:54:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-27 19:54:08,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.45) internal successors, (87), 60 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:08,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 87 transitions. [2024-11-27 19:54:08,039 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 87 transitions. Word has length 25 [2024-11-27 19:54:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:08,039 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 87 transitions. [2024-11-27 19:54:08,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:08,039 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 87 transitions. [2024-11-27 19:54:08,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-27 19:54:08,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:08,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:08,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:54:08,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:08,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:08,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1318701210, now seen corresponding path program 1 times [2024-11-27 19:54:08,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:08,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464356908] [2024-11-27 19:54:08,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:08,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:54:08,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:08,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464356908] [2024-11-27 19:54:08,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464356908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:08,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:08,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:54:08,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337159545] [2024-11-27 19:54:08,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:08,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:54:08,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:08,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:54:08,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:08,338 INFO L87 Difference]: Start difference. First operand 61 states and 87 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:08,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:08,399 INFO L93 Difference]: Finished difference Result 106 states and 151 transitions. [2024-11-27 19:54:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:54:08,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-27 19:54:08,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:08,403 INFO L225 Difference]: With dead ends: 106 [2024-11-27 19:54:08,403 INFO L226 Difference]: Without dead ends: 63 [2024-11-27 19:54:08,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:08,406 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:08,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:08,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-27 19:54:08,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-27 19:54:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.435483870967742) internal successors, (89), 62 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:08,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 89 transitions. [2024-11-27 19:54:08,418 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 89 transitions. Word has length 26 [2024-11-27 19:54:08,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:08,418 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 89 transitions. [2024-11-27 19:54:08,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 89 transitions. [2024-11-27 19:54:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-27 19:54:08,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:08,420 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:08,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:54:08,421 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:08,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:08,422 INFO L85 PathProgramCache]: Analyzing trace with hash 971969638, now seen corresponding path program 1 times [2024-11-27 19:54:08,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:08,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122122004] [2024-11-27 19:54:08,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:08,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:54:08,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:08,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122122004] [2024-11-27 19:54:08,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122122004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:08,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:08,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:54:08,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259702102] [2024-11-27 19:54:08,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:08,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:54:08,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:08,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:54:08,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:54:08,929 INFO L87 Difference]: Start difference. First operand 63 states and 89 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:09,060 INFO L93 Difference]: Finished difference Result 112 states and 158 transitions. [2024-11-27 19:54:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:54:09,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-27 19:54:09,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:09,063 INFO L225 Difference]: With dead ends: 112 [2024-11-27 19:54:09,063 INFO L226 Difference]: Without dead ends: 67 [2024-11-27 19:54:09,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:54:09,064 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 73 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:09,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 300 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:54:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-27 19:54:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2024-11-27 19:54:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.4153846153846155) internal successors, (92), 65 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 92 transitions. [2024-11-27 19:54:09,071 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 92 transitions. Word has length 27 [2024-11-27 19:54:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:09,071 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 92 transitions. [2024-11-27 19:54:09,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2024-11-27 19:54:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-27 19:54:09,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:09,072 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:09,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:54:09,073 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:09,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:09,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1630832937, now seen corresponding path program 1 times [2024-11-27 19:54:09,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:09,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363535252] [2024-11-27 19:54:09,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:09,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:54:10,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:10,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363535252] [2024-11-27 19:54:10,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363535252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:10,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:10,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:54:10,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913961717] [2024-11-27 19:54:10,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:10,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:54:10,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:10,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:54:10,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:54:10,053 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:10,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:10,282 INFO L93 Difference]: Finished difference Result 131 states and 183 transitions. [2024-11-27 19:54:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:54:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-27 19:54:10,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:10,287 INFO L225 Difference]: With dead ends: 131 [2024-11-27 19:54:10,287 INFO L226 Difference]: Without dead ends: 83 [2024-11-27 19:54:10,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:54:10,288 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 114 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:10,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 364 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:54:10,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-27 19:54:10,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2024-11-27 19:54:10,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4155844155844155) internal successors, (109), 77 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:10,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2024-11-27 19:54:10,298 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 28 [2024-11-27 19:54:10,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:10,299 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2024-11-27 19:54:10,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:10,299 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2024-11-27 19:54:10,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-27 19:54:10,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:10,300 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:10,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:54:10,301 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:10,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:10,302 INFO L85 PathProgramCache]: Analyzing trace with hash 975174637, now seen corresponding path program 1 times [2024-11-27 19:54:10,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:10,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238465719] [2024-11-27 19:54:10,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:10,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:54:10,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:10,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238465719] [2024-11-27 19:54:10,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238465719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:10,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:10,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 19:54:10,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458470851] [2024-11-27 19:54:10,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:10,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:54:10,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:10,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:54:10,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:54:10,780 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:10,928 INFO L93 Difference]: Finished difference Result 124 states and 173 transitions. [2024-11-27 19:54:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:54:10,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-27 19:54:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:10,930 INFO L225 Difference]: With dead ends: 124 [2024-11-27 19:54:10,930 INFO L226 Difference]: Without dead ends: 76 [2024-11-27 19:54:10,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:54:10,931 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 64 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:10,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 406 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:54:10,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-27 19:54:10,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2024-11-27 19:54:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4166666666666667) internal successors, (102), 72 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2024-11-27 19:54:10,947 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 28 [2024-11-27 19:54:10,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:10,947 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2024-11-27 19:54:10,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2024-11-27 19:54:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 19:54:10,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:10,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:10,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:54:10,952 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:10,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:10,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1730187906, now seen corresponding path program 1 times [2024-11-27 19:54:10,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:10,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154973827] [2024-11-27 19:54:10,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:10,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:54:10,999 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:54:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:54:11,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 19:54:11,073 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 19:54:11,074 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 19:54:11,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:54:11,080 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-27 19:54:11,128 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:54:11,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:54:11 BoogieIcfgContainer [2024-11-27 19:54:11,135 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:54:11,135 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:54:11,136 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:54:11,136 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:54:11,137 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:54:06" (3/4) ... [2024-11-27 19:54:11,143 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 19:54:11,145 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:54:11,146 INFO L158 Benchmark]: Toolchain (without parser) took 6006.64ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 91.9MB in the beginning and 55.3MB in the end (delta: 36.6MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2024-11-27 19:54:11,147 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:11,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.20ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 77.9MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:54:11,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.92ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 72.3MB in the end (delta: 5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:11,149 INFO L158 Benchmark]: Boogie Preprocessor took 120.94ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 68.6MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:54:11,150 INFO L158 Benchmark]: RCFGBuilder took 1044.93ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 88.8MB in the end (delta: -20.2MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-11-27 19:54:11,152 INFO L158 Benchmark]: TraceAbstraction took 4290.45ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 88.2MB in the beginning and 56.6MB in the end (delta: 31.6MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2024-11-27 19:54:11,152 INFO L158 Benchmark]: Witness Printer took 9.52ms. Allocated memory is still 142.6MB. Free memory was 56.6MB in the beginning and 55.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:11,155 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.20ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 77.9MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.92ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 72.3MB in the end (delta: 5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 120.94ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 68.6MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1044.93ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 88.8MB in the end (delta: -20.2MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4290.45ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 88.2MB in the beginning and 56.6MB in the end (delta: 31.6MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. * Witness Printer took 9.52ms. Allocated memory is still 142.6MB. Free memory was 56.6MB in the beginning and 55.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: 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 bitwiseAnd at line 89. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 2); [L30] const SORT_11 msb_SORT_11 = (SORT_11)1 << (2 - 1); [L32] const SORT_15 mask_SORT_15 = (SORT_15)-1 >> (sizeof(SORT_15) * 8 - 32); [L33] const SORT_15 msb_SORT_15 = (SORT_15)1 << (32 - 1); [L35] const SORT_1 var_5 = 0; [L36] const SORT_11 var_12 = 0; [L37] const SORT_15 var_17 = 2; [L38] const SORT_1 var_22 = 1; [L39] const SORT_11 var_39 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L43] SORT_1 input_4; [L44] SORT_11 input_26; [L45] SORT_11 input_40; [L46] SORT_1 input_45; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L48] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L49] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_11 VAL [mask_SORT_11=3, mask_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L50] SORT_11 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L51] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L51] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] SORT_1 init_7_arg_1 = var_5; [L54] state_6 = init_7_arg_1 [L55] SORT_1 init_9_arg_1 = var_5; [L56] state_8 = init_9_arg_1 [L57] SORT_11 init_14_arg_1 = var_12; [L58] state_13 = init_14_arg_1 [L59] SORT_1 init_32_arg_1 = var_5; [L60] state_31 = init_32_arg_1 VAL [mask_SORT_11=3, mask_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L63] input_2 = __VERIFIER_nondet_uchar() [L64] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L64] input_2 = input_2 & mask_SORT_1 [L65] input_3 = __VERIFIER_nondet_uchar() [L66] EXPR input_3 & mask_SORT_1 VAL [input_2=0, mask_SORT_11=3, mask_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L66] input_3 = input_3 & mask_SORT_1 [L67] input_4 = __VERIFIER_nondet_uchar() [L68] input_26 = __VERIFIER_nondet_uchar() [L69] input_40 = __VERIFIER_nondet_uchar() [L70] input_45 = __VERIFIER_nondet_uchar() [L73] SORT_1 var_10_arg_0 = state_6; [L74] SORT_1 var_10_arg_1 = state_8; [L75] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L76] SORT_11 var_16_arg_0 = state_13; VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_10=1, var_12=0, var_16_arg_0=0, var_17=2, var_22=1, var_39=1, var_5=0] [L77] EXPR var_16_arg_0 & mask_SORT_11 VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_10=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L77] var_16_arg_0 = var_16_arg_0 & mask_SORT_11 [L78] SORT_15 var_16 = var_16_arg_0; [L79] SORT_15 var_18_arg_0 = var_16; [L80] SORT_15 var_18_arg_1 = var_17; [L81] SORT_1 var_18 = var_18_arg_0 != var_18_arg_1; [L82] SORT_1 var_19_arg_0 = var_10; [L83] SORT_1 var_19_arg_1 = var_18; VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_39=1, var_5=0] [L84] EXPR var_19_arg_0 & var_19_arg_1 VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L84] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L85] SORT_1 var_23_arg_0 = var_19; [L86] SORT_1 var_23 = ~var_23_arg_0; [L87] SORT_1 var_24_arg_0 = var_22; [L88] SORT_1 var_24_arg_1 = var_23; VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_22=1, var_24_arg_0=1, var_24_arg_1=-2, var_39=1, var_5=0] [L89] EXPR var_24_arg_0 & var_24_arg_1 VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L89] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L90] EXPR var_24 & mask_SORT_1 VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L90] var_24 = var_24 & mask_SORT_1 [L91] SORT_1 bad_25_arg_0 = var_24; [L92] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 251 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 1552 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1163 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 389 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 [2024-11-27 19:54:11,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/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_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB --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 64bit --witnessprinter.graph.data.programhash ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:54:14,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:54:14,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-27 19:54:14,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:54:14,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:54:14,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:54:14,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:54:14,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:54:14,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:54:14,401 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:54:14,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:54:14,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:54:14,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:54:14,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:54:14,403 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:54:14,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:54:14,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:54:14,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:54:14,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:54:14,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:54:14,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:54:14,406 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 19:54:14,406 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 19:54:14,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 19:54:14,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:54:14,406 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:54:14,406 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:54:14,407 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:54:14,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:54:14,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:54:14,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:54:14,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:14,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:54:14,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:54:14,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:54:14,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:54:14,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:14,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:54:14,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:54:14,410 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:54:14,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:54:14,410 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 19:54:14,410 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 19:54:14,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:54:14,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:54:14,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:54:14,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:54:14,412 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_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 [2024-11-27 19:54:14,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:54:14,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:54:14,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:54:14,795 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:54:14,795 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:54:14,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2024-11-27 19:54:18,199 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data/cd78249d5/24bdc6b5207d4223b82467c848322a2d/FLAGb0d85d7b9 [2024-11-27 19:54:18,476 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:54:18,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2024-11-27 19:54:18,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data/cd78249d5/24bdc6b5207d4223b82467c848322a2d/FLAGb0d85d7b9 [2024-11-27 19:54:18,503 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/data/cd78249d5/24bdc6b5207d4223b82467c848322a2d [2024-11-27 19:54:18,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:54:18,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:54:18,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:54:18,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:54:18,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:54:18,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:18,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb34332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18, skipping insertion in model container [2024-11-27 19:54:18,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:18,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:54:18,761 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_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1245,1258] [2024-11-27 19:54:18,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:54:18,885 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:54:18,907 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_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1245,1258] [2024-11-27 19:54:18,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:54:18,988 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:54:18,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18 WrapperNode [2024-11-27 19:54:18,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:54:18,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:54:18,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:54:18,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:54:19,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,060 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 154 [2024-11-27 19:54:19,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:54:19,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:54:19,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:54:19,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:54:19,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,100 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-27 19:54:19,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,112 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:54:19,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:54:19,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:54:19,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:54:19,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (1/1) ... [2024-11-27 19:54:19,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:54:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:19,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:54:19,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:54:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:54:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 19:54:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 19:54:19,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:54:19,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:54:19,374 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:54:19,376 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:54:19,743 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-27 19:54:19,747 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:54:19,764 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:54:19,764 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 19:54:19,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:54:19 BoogieIcfgContainer [2024-11-27 19:54:19,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:54:19,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:54:19,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:54:19,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:54:19,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:54:18" (1/3) ... [2024-11-27 19:54:19,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439a71f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:54:19, skipping insertion in model container [2024-11-27 19:54:19,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:54:18" (2/3) ... [2024-11-27 19:54:19,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439a71f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:54:19, skipping insertion in model container [2024-11-27 19:54:19,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:54:19" (3/3) ... [2024-11-27 19:54:19,783 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b06.c [2024-11-27 19:54:19,804 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:54:19,808 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_b06.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:54:19,902 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:54:19,923 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;@49ed642a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:54:19,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:54:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:19,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 19:54:19,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:19,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 19:54:19,936 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:19,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:19,946 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-27 19:54:19,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:19,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595513359] [2024-11-27 19:54:19,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:19,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:19,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:19,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:54:19,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:54:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:20,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 19:54:20,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:54:20,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:20,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:20,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595513359] [2024-11-27 19:54:20,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595513359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:20,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:20,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:54:20,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90987520] [2024-11-27 19:54:20,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:20,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:54:20,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:20,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:54:20,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:20,687 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:20,739 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2024-11-27 19:54:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:54:20,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 19:54:20,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:20,751 INFO L225 Difference]: With dead ends: 17 [2024-11-27 19:54:20,751 INFO L226 Difference]: Without dead ends: 9 [2024-11-27 19:54:20,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:54:20,760 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:20,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:20,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-27 19:54:20,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-27 19:54:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-27 19:54:20,798 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-27 19:54:20,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:20,798 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-27 19:54:20,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-27 19:54:20,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 19:54:20,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:20,800 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:20,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:54:21,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:21,002 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:21,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-27 19:54:21,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:21,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832340353] [2024-11-27 19:54:21,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:21,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:21,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:21,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:54:21,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:54:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:21,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 19:54:21,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:54:22,030 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:54:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:54:23,460 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:23,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832340353] [2024-11-27 19:54:23,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832340353] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:54:23,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:54:23,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 19:54:23,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194081174] [2024-11-27 19:54:23,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:54:23,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 19:54:23,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:23,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 19:54:23,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:54:23,465 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:23,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:23,722 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-27 19:54:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:54:23,723 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-27 19:54:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:23,724 INFO L225 Difference]: With dead ends: 14 [2024-11-27 19:54:23,724 INFO L226 Difference]: Without dead ends: 12 [2024-11-27 19:54:23,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:54:23,726 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:23,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:54:23,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-27 19:54:23,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-27 19:54:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:23,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-27 19:54:23,738 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-27 19:54:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:23,738 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-27 19:54:23,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-27 19:54:23,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-27 19:54:23,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:23,740 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-27 19:54:23,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:54:23,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:23,941 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:23,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:23,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-27 19:54:23,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:54:23,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288424051] [2024-11-27 19:54:23,943 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:54:23,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:23,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:23,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:54:23,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:54:24,107 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:54:24,107 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:54:24,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 19:54:24,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:54:24,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:54:25,822 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:54:25,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:54:25,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288424051] [2024-11-27 19:54:25,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288424051] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:54:25,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:54:25,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 19:54:25,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539889621] [2024-11-27 19:54:25,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:54:25,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 19:54:25,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:54:25,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 19:54:25,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:54:25,829 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:25,959 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-11-27 19:54:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:54:25,960 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-27 19:54:25,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:25,960 INFO L225 Difference]: With dead ends: 12 [2024-11-27 19:54:25,960 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 19:54:25,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:54:25,961 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:25,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:54:25,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 19:54:25,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 19:54:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 19:54:25,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-27 19:54:25,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:25,965 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:54:25,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:54:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:54:25,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 19:54:25,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 19:54:25,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:54:26,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:26,173 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-27 19:54:26,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 19:54:26,310 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:54:26,324 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-27 19:54:26,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:54:26 BoogieIcfgContainer [2024-11-27 19:54:26,328 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:54:26,330 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:54:26,330 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:54:26,330 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:54:26,331 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:54:19" (3/4) ... [2024-11-27 19:54:26,334 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 19:54:26,346 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-27 19:54:26,349 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-27 19:54:26,350 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 19:54:26,350 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:54:26,350 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:54:26,456 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 19:54:26,456 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 19:54:26,456 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:54:26,458 INFO L158 Benchmark]: Toolchain (without parser) took 7949.57ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 60.9MB in the beginning and 90.2MB in the end (delta: -29.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-11-27 19:54:26,458 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:26,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.43ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 46.6MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:54:26,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.58ms. Allocated memory is still 83.9MB. Free memory was 46.6MB in the beginning and 44.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:26,461 INFO L158 Benchmark]: Boogie Preprocessor took 66.14ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 42.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:26,461 INFO L158 Benchmark]: RCFGBuilder took 629.95ms. Allocated memory is still 83.9MB. Free memory was 42.6MB in the beginning and 26.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:54:26,461 INFO L158 Benchmark]: TraceAbstraction took 6557.18ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 25.9MB in the beginning and 95.8MB in the end (delta: -69.9MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2024-11-27 19:54:26,462 INFO L158 Benchmark]: Witness Printer took 126.71ms. Allocated memory is still 125.8MB. Free memory was 95.8MB in the beginning and 90.2MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:54:26,464 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.43ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 46.6MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.58ms. Allocated memory is still 83.9MB. Free memory was 46.6MB in the beginning and 44.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.14ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 42.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 629.95ms. Allocated memory is still 83.9MB. Free memory was 42.6MB in the beginning and 26.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6557.18ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 25.9MB in the beginning and 95.8MB in the end (delta: -69.9MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Witness Printer took 126.71ms. Allocated memory is still 125.8MB. Free memory was 95.8MB in the beginning and 90.2MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 13 QuantifiedInterpolants, 1764 SizeOfPredicates, 27 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 5/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: (((((((0 == state_13) || (1 == state_13)) && (2 == var_17)) && (1 == var_39)) && (3 == mask_SORT_11)) && (1 == mask_SORT_1)) && (0 == var_12)) RESULT: Ultimate proved your program to be correct! [2024-11-27 19:54:26,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9f45d9-a7ca-4a18-9a92-4ebc5440c9d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE