./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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 a68330c23bd8fa71b4f2c1a72229a125c9c545dc64c1e4d5015a2916cb213688 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:58,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:58,649 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 19:50:58,659 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:58,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:58,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:58,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:58,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:58,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:58,696 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:58,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:58,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:58,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:58,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:58,697 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:58,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:58,698 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:58,699 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:58,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:58,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:58,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:58,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:58,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:58,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:58,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:58,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:58,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:58,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:58,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:58,701 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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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 -> a68330c23bd8fa71b4f2c1a72229a125c9c545dc64c1e4d5015a2916cb213688 [2024-11-27 19:50:59,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:59,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:59,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:59,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:59,032 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:59,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c [2024-11-27 19:51:01,976 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data/8a548b831/82a94b9de2fb46faa00da1327cc5e04b/FLAGac9b4a51b [2024-11-27 19:51:02,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:51:02,418 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c [2024-11-27 19:51:02,441 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data/8a548b831/82a94b9de2fb46faa00da1327cc5e04b/FLAGac9b4a51b [2024-11-27 19:51:02,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data/8a548b831/82a94b9de2fb46faa00da1327cc5e04b [2024-11-27 19:51:02,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:51:02,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:51:02,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:02,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:51:02,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:51:02,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:02" (1/1) ... [2024-11-27 19:51:02,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c27baf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:02, skipping insertion in model container [2024-11-27 19:51:02,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:02" (1/1) ... [2024-11-27 19:51:02,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:51:02,774 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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c[1246,1259] [2024-11-27 19:51:03,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:03,132 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:51:03,143 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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c[1246,1259] [2024-11-27 19:51:03,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:03,313 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:51:03,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03 WrapperNode [2024-11-27 19:51:03,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:03,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:03,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:51:03,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:51:03,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,534 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1815 [2024-11-27 19:51:03,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:03,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:51:03,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:51:03,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:51:03,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,561 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,608 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:51:03,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,675 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:51:03,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:51:03,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:51:03,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:51:03,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (1/1) ... [2024-11-27 19:51:03,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:03,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:03,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:51:03,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:51:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:51:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:51:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:51:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:51:04,250 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:51:04,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:51:06,410 INFO L? ?]: Removed 1165 outVars from TransFormulas that were not future-live. [2024-11-27 19:51:06,411 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:51:06,423 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:51:06,424 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 19:51:06,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:06 BoogieIcfgContainer [2024-11-27 19:51:06,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:51:06,426 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:51:06,426 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:51:06,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:51:06,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:51:02" (1/3) ... [2024-11-27 19:51:06,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f72cade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:06, skipping insertion in model container [2024-11-27 19:51:06,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:03" (2/3) ... [2024-11-27 19:51:06,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f72cade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:06, skipping insertion in model container [2024-11-27 19:51:06,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:06" (3/3) ... [2024-11-27 19:51:06,433 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_DAIO.c [2024-11-27 19:51:06,466 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:51:06,468 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.v_DAIO.c that has 1 procedures, 230 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:51:06,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:51:06,551 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;@5888179a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:51:06,552 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:51:06,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 228 states have (on average 1.4956140350877194) internal successors, (341), 229 states have internal predecessors, (341), 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 19:51:06,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 19:51:06,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:06,563 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, 1, 1] [2024-11-27 19:51:06,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:06,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1464363741, now seen corresponding path program 1 times [2024-11-27 19:51:06,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:06,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027323196] [2024-11-27 19:51:06,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:06,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:07,769 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 19:51:07,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:07,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027323196] [2024-11-27 19:51:07,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027323196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:07,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:07,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:51:07,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587965032] [2024-11-27 19:51:07,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:07,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:51:07,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:07,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:51:07,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:51:07,803 INFO L87 Difference]: Start difference. First operand has 230 states, 228 states have (on average 1.4956140350877194) internal successors, (341), 229 states have internal predecessors, (341), 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 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 19:51:08,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:08,029 INFO L93 Difference]: Finished difference Result 435 states and 648 transitions. [2024-11-27 19:51:08,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:51:08,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2024-11-27 19:51:08,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:08,041 INFO L225 Difference]: With dead ends: 435 [2024-11-27 19:51:08,042 INFO L226 Difference]: Without dead ends: 231 [2024-11-27 19:51:08,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:51:08,048 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 319 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:08,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1289 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:51:08,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-27 19:51:08,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2024-11-27 19:51:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.48471615720524) internal successors, (340), 229 states have internal predecessors, (340), 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 19:51:08,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 340 transitions. [2024-11-27 19:51:08,111 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 340 transitions. Word has length 31 [2024-11-27 19:51:08,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:08,112 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 340 transitions. [2024-11-27 19:51:08,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 19:51:08,113 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 340 transitions. [2024-11-27 19:51:08,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 19:51:08,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:08,115 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, 1, 1, 1] [2024-11-27 19:51:08,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:51:08,116 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:08,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash 49670507, now seen corresponding path program 1 times [2024-11-27 19:51:08,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:08,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572439253] [2024-11-27 19:51:08,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:08,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:08,401 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 19:51:08,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:08,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572439253] [2024-11-27 19:51:08,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572439253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:08,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:08,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:51:08,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596540446] [2024-11-27 19:51:08,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:08,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:08,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:08,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:08,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:08,407 INFO L87 Difference]: Start difference. First operand 230 states and 340 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 19:51:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:08,461 INFO L93 Difference]: Finished difference Result 234 states and 344 transitions. [2024-11-27 19:51:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:08,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2024-11-27 19:51:08,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:08,463 INFO L225 Difference]: With dead ends: 234 [2024-11-27 19:51:08,467 INFO L226 Difference]: Without dead ends: 232 [2024-11-27 19:51:08,467 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 19:51:08,468 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 999 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 19:51:08,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 999 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:08,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-27 19:51:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-11-27 19:51:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.4805194805194806) internal successors, (342), 231 states have internal predecessors, (342), 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 19:51:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 342 transitions. [2024-11-27 19:51:08,493 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 342 transitions. Word has length 32 [2024-11-27 19:51:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:08,493 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 342 transitions. [2024-11-27 19:51:08,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 19:51:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 342 transitions. [2024-11-27 19:51:08,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-27 19:51:08,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:08,497 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, 1, 1, 1, 1] [2024-11-27 19:51:08,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:51:08,497 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:08,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:08,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1541481039, now seen corresponding path program 1 times [2024-11-27 19:51:08,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:08,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653201097] [2024-11-27 19:51:08,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:08,715 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 19:51:08,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653201097] [2024-11-27 19:51:08,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653201097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:08,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:08,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:51:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417668292] [2024-11-27 19:51:08,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:08,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:08,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:08,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:08,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:08,717 INFO L87 Difference]: Start difference. First operand 232 states and 342 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 19:51:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:08,776 INFO L93 Difference]: Finished difference Result 440 states and 649 transitions. [2024-11-27 19:51:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:08,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2024-11-27 19:51:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:08,779 INFO L225 Difference]: With dead ends: 440 [2024-11-27 19:51:08,782 INFO L226 Difference]: Without dead ends: 234 [2024-11-27 19:51:08,783 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 19:51:08,784 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 995 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 19:51:08,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 995 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:08,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-27 19:51:08,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-27 19:51:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.4763948497854078) internal successors, (344), 233 states have internal predecessors, (344), 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 19:51:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 344 transitions. [2024-11-27 19:51:08,803 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 344 transitions. Word has length 33 [2024-11-27 19:51:08,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:08,806 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 344 transitions. [2024-11-27 19:51:08,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 19:51:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 344 transitions. [2024-11-27 19:51:08,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 19:51:08,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:08,810 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, 1, 1, 1, 1, 1] [2024-11-27 19:51:08,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:51:08,810 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:08,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:08,811 INFO L85 PathProgramCache]: Analyzing trace with hash 98964480, now seen corresponding path program 1 times [2024-11-27 19:51:08,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:08,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710009408] [2024-11-27 19:51:08,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:08,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:51:08,941 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:51:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:51:09,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 19:51:09,111 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 19:51:09,112 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 19:51:09,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:51:09,117 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-27 19:51:09,209 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:51:09,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:51:09 BoogieIcfgContainer [2024-11-27 19:51:09,216 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:51:09,216 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:51:09,216 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:51:09,217 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:51:09,218 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:06" (3/4) ... [2024-11-27 19:51:09,221 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 19:51:09,221 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:51:09,223 INFO L158 Benchmark]: Toolchain (without parser) took 6748.94ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 90.8MB in the beginning and 119.6MB in the end (delta: -28.8MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2024-11-27 19:51:09,223 INFO L158 Benchmark]: CDTParser took 1.48ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:09,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 838.32ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 47.0MB in the end (delta: 43.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-27 19:51:09,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 219.09ms. Allocated memory is still 117.4MB. Free memory was 47.0MB in the beginning and 65.5MB in the end (delta: -18.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-27 19:51:09,224 INFO L158 Benchmark]: Boogie Preprocessor took 226.24ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 43.3MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 19:51:09,224 INFO L158 Benchmark]: RCFGBuilder took 2658.95ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 43.3MB in the beginning and 34.3MB in the end (delta: 9.0MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-11-27 19:51:09,224 INFO L158 Benchmark]: TraceAbstraction took 2789.60ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 33.7MB in the beginning and 119.6MB in the end (delta: -85.9MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2024-11-27 19:51:09,225 INFO L158 Benchmark]: Witness Printer took 5.19ms. Allocated memory is still 192.9MB. Free memory was 119.6MB in the beginning and 119.6MB in the end (delta: 7.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:51:09,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.48ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 838.32ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 47.0MB in the end (delta: 43.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 219.09ms. Allocated memory is still 117.4MB. Free memory was 47.0MB in the beginning and 65.5MB in the end (delta: -18.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 226.24ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 43.3MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2658.95ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 43.3MB in the beginning and 34.3MB in the end (delta: 9.0MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2789.60ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 33.7MB in the beginning and 119.6MB in the end (delta: -85.9MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Witness Printer took 5.19ms. Allocated memory is still 192.9MB. Free memory was 119.6MB in the beginning and 119.6MB in the end (delta: 7.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 300. 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_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 4); [L30] const SORT_10 msb_SORT_10 = (SORT_10)1 << (4 - 1); [L32] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 32); [L33] const SORT_16 msb_SORT_16 = (SORT_16)1 << (32 - 1); [L35] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 7); [L36] const SORT_32 msb_SORT_32 = (SORT_32)1 << (7 - 1); [L38] const SORT_40 mask_SORT_40 = (SORT_40)-1 >> (sizeof(SORT_40) * 8 - 9); [L39] const SORT_40 msb_SORT_40 = (SORT_40)1 << (9 - 1); [L41] const SORT_60 mask_SORT_60 = (SORT_60)-1 >> (sizeof(SORT_60) * 8 - 20); [L42] const SORT_60 msb_SORT_60 = (SORT_60)1 << (20 - 1); [L44] const SORT_357 mask_SORT_357 = (SORT_357)-1 >> (sizeof(SORT_357) * 8 - 2); [L45] const SORT_357 msb_SORT_357 = (SORT_357)1 << (2 - 1); [L47] const SORT_359 mask_SORT_359 = (SORT_359)-1 >> (sizeof(SORT_359) * 8 - 3); [L48] const SORT_359 msb_SORT_359 = (SORT_359)1 << (3 - 1); [L50] const SORT_1 var_13 = 0; [L51] const SORT_16 var_18 = 1; [L52] const SORT_16 var_23 = 0; [L53] const SORT_1 var_28 = 1; [L54] const SORT_32 var_33 = 0; [L55] const SORT_40 var_41 = 0; [L56] const SORT_10 var_48 = 0; [L57] const SORT_16 var_67 = 31; [L58] const SORT_16 var_71 = 32; [L59] const SORT_10 var_74 = 3; [L60] const SORT_16 var_90 = 2; [L61] const SORT_10 var_96 = 5; [L62] const SORT_10 var_117 = 7; [L63] const SORT_10 var_136 = 9; [L64] const SORT_32 var_233 = 4; [L65] const SORT_10 var_235 = 2; [L66] const SORT_32 var_254 = 1; [L67] const SORT_16 var_256 = 191; [L68] const SORT_10 var_259 = 6; [L69] const SORT_10 var_282 = 4; [L70] const SORT_10 var_307 = 8; [L71] const SORT_40 var_315 = 1; [L72] const SORT_10 var_321 = 10; [L73] const SORT_10 var_329 = 1; [L75] SORT_1 input_2; [L76] SORT_1 input_3; [L77] SORT_1 input_4; [L78] SORT_1 input_5; [L79] SORT_1 input_6; [L80] SORT_1 input_7; [L81] SORT_1 input_8; [L82] SORT_1 input_9; [L83] SORT_10 input_11; [L84] SORT_10 input_12; [L85] SORT_1 input_38; [L86] SORT_1 input_44; [L87] SORT_1 input_46; [L88] SORT_1 input_52; [L89] SORT_1 input_54; [L90] SORT_1 input_56; [L91] SORT_1 input_58; [L92] SORT_60 input_61; [L93] SORT_1 input_63; [L94] SORT_1 input_64; [L95] SORT_1 input_65; [L96] SORT_1 input_77; [L97] SORT_1 input_82; [L98] SORT_1 input_86; [L99] SORT_1 input_87; [L100] SORT_1 input_88; [L101] SORT_1 input_99; [L102] SORT_1 input_104; [L103] SORT_1 input_108; [L104] SORT_1 input_109; [L105] SORT_1 input_110; [L106] SORT_1 input_120; [L107] SORT_1 input_125; [L108] SORT_1 input_127; [L109] SORT_1 input_128; [L110] SORT_1 input_129; [L111] SORT_1 input_139; [L112] SORT_1 input_144; [L113] SORT_1 input_151; [L114] SORT_1 input_155; [L115] SORT_1 input_156; [L116] SORT_1 input_157; [L117] SORT_1 input_164; [L118] SORT_1 input_169; [L119] SORT_1 input_173; [L120] SORT_1 input_174; [L121] SORT_1 input_175; [L122] SORT_1 input_182; [L123] SORT_1 input_187; [L124] SORT_1 input_191; [L125] SORT_1 input_192; [L126] SORT_1 input_193; [L127] SORT_1 input_200; [L128] SORT_1 input_205; [L129] SORT_1 input_207; [L130] SORT_1 input_208; [L131] SORT_1 input_209; [L132] SORT_1 input_216; [L133] SORT_1 input_221; [L134] SORT_1 input_228; [L135] SORT_32 input_232; [L136] SORT_32 input_238; [L137] SORT_32 input_242; [L138] SORT_32 input_249; [L139] SORT_32 input_253; [L140] SORT_32 input_262; [L141] SORT_32 input_264; [L142] SORT_32 input_271; [L143] SORT_32 input_278; [L144] SORT_32 input_285; [L145] SORT_32 input_292; [L146] SORT_32 input_296; [L147] SORT_32 input_303; [L148] SORT_32 input_311; [L149] SORT_40 input_324; [L150] SORT_10 input_328; [L151] SORT_10 input_334; [L152] SORT_10 input_340; [L153] SORT_10 input_344; [L154] SORT_10 input_346; [L155] SORT_10 input_350; [L156] SORT_10 input_363; [L157] SORT_10 input_367; [L158] SORT_10 input_369; [L159] SORT_10 input_373; [L160] SORT_10 input_377; [L161] SORT_10 input_381; [L162] SORT_10 input_385; [L163] SORT_10 input_389; [L164] SORT_10 input_406; [L166] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L166] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L167] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L167] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L168] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L168] SORT_32 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L169] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L169] SORT_32 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L170] EXPR __VERIFIER_nondet_ushort() & mask_SORT_40 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L170] SORT_40 state_42 = __VERIFIER_nondet_ushort() & mask_SORT_40; [L171] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L171] SORT_10 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L173] SORT_1 init_15_arg_1 = var_13; [L174] state_14 = init_15_arg_1 [L175] SORT_1 init_21_arg_1 = var_13; [L176] state_20 = init_21_arg_1 [L177] SORT_32 init_35_arg_1 = var_33; [L178] state_34 = init_35_arg_1 [L179] SORT_32 init_37_arg_1 = var_33; [L180] state_36 = init_37_arg_1 [L181] SORT_40 init_43_arg_1 = var_41; [L182] state_42 = init_43_arg_1 [L183] SORT_10 init_50_arg_1 = var_48; [L184] state_49 = init_50_arg_1 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L187] input_2 = __VERIFIER_nondet_uchar() [L188] input_3 = __VERIFIER_nondet_uchar() [L189] input_4 = __VERIFIER_nondet_uchar() [L190] input_5 = __VERIFIER_nondet_uchar() [L191] input_6 = __VERIFIER_nondet_uchar() [L192] EXPR input_6 & mask_SORT_1 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L192] input_6 = input_6 & mask_SORT_1 [L193] input_7 = __VERIFIER_nondet_uchar() [L194] input_8 = __VERIFIER_nondet_uchar() [L195] input_9 = __VERIFIER_nondet_uchar() [L196] EXPR input_9 & mask_SORT_1 VAL [input_6=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L196] input_9 = input_9 & mask_SORT_1 [L197] input_11 = __VERIFIER_nondet_uchar() [L198] input_12 = __VERIFIER_nondet_uchar() [L199] input_38 = __VERIFIER_nondet_uchar() [L200] input_44 = __VERIFIER_nondet_uchar() [L201] input_46 = __VERIFIER_nondet_uchar() [L202] input_52 = __VERIFIER_nondet_uchar() [L203] input_54 = __VERIFIER_nondet_uchar() [L204] input_56 = __VERIFIER_nondet_uchar() [L205] input_58 = __VERIFIER_nondet_uchar() [L206] input_61 = __VERIFIER_nondet_uint() [L207] input_63 = __VERIFIER_nondet_uchar() [L208] input_64 = __VERIFIER_nondet_uchar() [L209] input_65 = __VERIFIER_nondet_uchar() [L210] input_77 = __VERIFIER_nondet_uchar() [L211] input_82 = __VERIFIER_nondet_uchar() [L212] input_86 = __VERIFIER_nondet_uchar() [L213] input_87 = __VERIFIER_nondet_uchar() [L214] input_88 = __VERIFIER_nondet_uchar() [L215] input_99 = __VERIFIER_nondet_uchar() [L216] input_104 = __VERIFIER_nondet_uchar() [L217] input_108 = __VERIFIER_nondet_uchar() [L218] input_109 = __VERIFIER_nondet_uchar() [L219] input_110 = __VERIFIER_nondet_uchar() [L220] input_120 = __VERIFIER_nondet_uchar() [L221] input_125 = __VERIFIER_nondet_uchar() [L222] input_127 = __VERIFIER_nondet_uchar() [L223] input_128 = __VERIFIER_nondet_uchar() [L224] input_129 = __VERIFIER_nondet_uchar() [L225] input_139 = __VERIFIER_nondet_uchar() [L226] input_144 = __VERIFIER_nondet_uchar() [L227] input_151 = __VERIFIER_nondet_uchar() [L228] input_155 = __VERIFIER_nondet_uchar() [L229] input_156 = __VERIFIER_nondet_uchar() [L230] input_157 = __VERIFIER_nondet_uchar() [L231] input_164 = __VERIFIER_nondet_uchar() [L232] input_169 = __VERIFIER_nondet_uchar() [L233] input_173 = __VERIFIER_nondet_uchar() [L234] input_174 = __VERIFIER_nondet_uchar() [L235] input_175 = __VERIFIER_nondet_uchar() [L236] input_182 = __VERIFIER_nondet_uchar() [L237] input_187 = __VERIFIER_nondet_uchar() [L238] input_191 = __VERIFIER_nondet_uchar() [L239] input_192 = __VERIFIER_nondet_uchar() [L240] input_193 = __VERIFIER_nondet_uchar() [L241] input_200 = __VERIFIER_nondet_uchar() [L242] input_205 = __VERIFIER_nondet_uchar() [L243] input_207 = __VERIFIER_nondet_uchar() [L244] input_208 = __VERIFIER_nondet_uchar() [L245] input_209 = __VERIFIER_nondet_uchar() [L246] input_216 = __VERIFIER_nondet_uchar() [L247] input_221 = __VERIFIER_nondet_uchar() [L248] input_228 = __VERIFIER_nondet_uchar() [L249] input_232 = __VERIFIER_nondet_uchar() [L250] input_238 = __VERIFIER_nondet_uchar() [L251] input_242 = __VERIFIER_nondet_uchar() [L252] input_249 = __VERIFIER_nondet_uchar() [L253] input_253 = __VERIFIER_nondet_uchar() [L254] input_262 = __VERIFIER_nondet_uchar() [L255] input_264 = __VERIFIER_nondet_uchar() [L256] input_271 = __VERIFIER_nondet_uchar() [L257] input_278 = __VERIFIER_nondet_uchar() [L258] input_285 = __VERIFIER_nondet_uchar() [L259] input_292 = __VERIFIER_nondet_uchar() [L260] input_296 = __VERIFIER_nondet_uchar() [L261] input_303 = __VERIFIER_nondet_uchar() [L262] input_311 = __VERIFIER_nondet_uchar() [L263] input_324 = __VERIFIER_nondet_ushort() [L264] input_328 = __VERIFIER_nondet_uchar() [L265] input_334 = __VERIFIER_nondet_uchar() [L266] input_340 = __VERIFIER_nondet_uchar() [L267] input_344 = __VERIFIER_nondet_uchar() [L268] input_346 = __VERIFIER_nondet_uchar() [L269] input_350 = __VERIFIER_nondet_uchar() [L270] input_363 = __VERIFIER_nondet_uchar() [L271] input_367 = __VERIFIER_nondet_uchar() [L272] input_369 = __VERIFIER_nondet_uchar() [L273] input_373 = __VERIFIER_nondet_uchar() [L274] input_377 = __VERIFIER_nondet_uchar() [L275] input_381 = __VERIFIER_nondet_uchar() [L276] input_385 = __VERIFIER_nondet_uchar() [L277] input_389 = __VERIFIER_nondet_uchar() [L278] input_406 = __VERIFIER_nondet_uchar() [L281] SORT_1 var_17_arg_0 = state_14; VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_17_arg_0=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L282] EXPR var_17_arg_0 & mask_SORT_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L282] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L283] SORT_16 var_17 = var_17_arg_0; [L284] SORT_16 var_19_arg_0 = var_17; [L285] SORT_16 var_19_arg_1 = var_18; [L286] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L287] SORT_1 var_22_arg_0 = state_20; VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_19=0, var_22_arg_0=0, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L288] EXPR var_22_arg_0 & mask_SORT_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_19=0, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L288] var_22_arg_0 = var_22_arg_0 & mask_SORT_1 [L289] SORT_16 var_22 = var_22_arg_0; [L290] SORT_16 var_24_arg_0 = var_22; [L291] SORT_16 var_24_arg_1 = var_23; [L292] SORT_1 var_24 = var_24_arg_0 == var_24_arg_1; [L293] SORT_1 var_25_arg_0 = var_19; [L294] SORT_1 var_25_arg_1 = var_24; VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_25_arg_0=0, var_25_arg_1=1, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L295] EXPR var_25_arg_0 | var_25_arg_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L295] SORT_1 var_25 = var_25_arg_0 | var_25_arg_1; [L296] SORT_1 var_29_arg_0 = var_25; [L297] SORT_1 var_29 = ~var_29_arg_0; [L298] SORT_1 var_30_arg_0 = var_28; [L299] SORT_1 var_30_arg_1 = var_29; VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_30_arg_0=1, var_30_arg_1=-2, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L300] EXPR var_30_arg_0 & var_30_arg_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L300] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L301] EXPR var_30 & mask_SORT_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L301] var_30 = var_30 & mask_SORT_1 [L302] SORT_1 bad_31_arg_0 = var_30; [L303] CALL __VERIFIER_assert(!(bad_31_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 3283 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2289 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 994 mSDtfsCounter, 82 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 19:51:09,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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 a68330c23bd8fa71b4f2c1a72229a125c9c545dc64c1e4d5015a2916cb213688 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:51:11,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:51:12,064 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-27 19:51:12,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:51:12,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:51:12,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:51:12,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:51:12,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:51:12,116 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:51:12,116 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:51:12,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:51:12,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:51:12,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:51:12,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:51:12,117 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:51:12,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:51:12,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:51:12,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:51:12,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:51:12,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:51:12,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:51:12,119 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 19:51:12,119 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 19:51:12,119 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 19:51:12,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:51:12,119 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:51:12,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:51:12,119 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:51:12,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:12,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:12,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:12,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:12,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:51:12,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:12,121 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:12,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:12,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:12,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:51:12,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:51:12,121 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:51:12,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:51:12,121 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 19:51:12,122 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 19:51:12,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:51:12,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:51:12,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:51:12,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:51:12,122 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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/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 -> a68330c23bd8fa71b4f2c1a72229a125c9c545dc64c1e4d5015a2916cb213688 [2024-11-27 19:51:12,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:51:12,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:51:12,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:51:12,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:51:12,452 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:51:12,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c [2024-11-27 19:51:15,483 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data/f5309acbf/8c2fe1b2f02c4a4e873dd486399040a6/FLAGc3c1d9aca [2024-11-27 19:51:15,837 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:51:15,838 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c [2024-11-27 19:51:15,861 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data/f5309acbf/8c2fe1b2f02c4a4e873dd486399040a6/FLAGc3c1d9aca [2024-11-27 19:51:16,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/data/f5309acbf/8c2fe1b2f02c4a4e873dd486399040a6 [2024-11-27 19:51:16,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:51:16,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:51:16,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:16,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:51:16,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:51:16,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526c23a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16, skipping insertion in model container [2024-11-27 19:51:16,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:51:16,298 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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c[1246,1259] [2024-11-27 19:51:16,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:16,579 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:51:16,588 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_303fe709-338f-4cf2-8ba1-c2d20f70e6af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c[1246,1259] [2024-11-27 19:51:16,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:16,785 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:51:16,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16 WrapperNode [2024-11-27 19:51:16,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:16,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:16,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:51:16,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:51:16,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,885 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1375 [2024-11-27 19:51:16,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:16,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:51:16,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:51:16,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:51:16,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,909 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,933 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:51:16,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,963 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:51:16,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:51:16,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:51:16,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:51:16,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (1/1) ... [2024-11-27 19:51:16,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:17,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:17,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:51:17,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:51:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:51:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 19:51:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:51:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:51:17,430 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:51:17,432 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:51:18,608 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-27 19:51:18,608 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:51:18,620 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:51:18,620 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 19:51:18,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:18 BoogieIcfgContainer [2024-11-27 19:51:18,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:51:18,624 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:51:18,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:51:18,634 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:51:18,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:51:16" (1/3) ... [2024-11-27 19:51:18,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211021eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:18, skipping insertion in model container [2024-11-27 19:51:18,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:16" (2/3) ... [2024-11-27 19:51:18,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211021eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:18, skipping insertion in model container [2024-11-27 19:51:18,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:18" (3/3) ... [2024-11-27 19:51:18,636 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_DAIO.c [2024-11-27 19:51:18,654 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:51:18,656 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.v_DAIO.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:51:18,717 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:51:18,733 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;@7388aecd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:51:18,734 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:51:18,738 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 19:51:18,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 19:51:18,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:18,744 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 19:51:18,745 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:18,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:18,751 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-27 19:51:18,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:51:18,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57324360] [2024-11-27 19:51:18,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:18,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:18,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:18,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:18,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:51:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:19,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 19:51:19,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:19,422 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 19:51:19,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:19,423 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:51:19,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57324360] [2024-11-27 19:51:19,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57324360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:19,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:19,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:51:19,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491869393] [2024-11-27 19:51:19,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:19,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:19,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:51:19,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:19,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:19,451 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 19:51:19,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:19,542 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-27 19:51:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:19,545 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 19:51:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:19,551 INFO L225 Difference]: With dead ends: 18 [2024-11-27 19:51:19,552 INFO L226 Difference]: Without dead ends: 10 [2024-11-27 19:51:19,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:19,557 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:19,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:51:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-27 19:51:19,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-27 19:51:19,585 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 19:51:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-27 19:51:19,594 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-27 19:51:19,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:19,594 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-27 19:51:19,595 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 19:51:19,595 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-27 19:51:19,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 19:51:19,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:19,595 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:19,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:51:19,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:19,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:19,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:19,802 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-27 19:51:19,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:51:19,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232503033] [2024-11-27 19:51:19,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:19,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:19,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:19,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:19,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303fe709-338f-4cf2-8ba1-c2d20f70e6af/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:51:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:20,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 19:51:20,315 INFO L279 TraceCheckSpWp]: Computing forward predicates...