./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX --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 5a1c69a049a9608f95ac90730c4f7554434241d21538bbd7cbbae38e9a8e04bb
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:11:10,244 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:11:10,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-08 18:11:10,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:11:10,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:11:10,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:11:10,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:11:10,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:11:10,364 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:11:10,366 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:11:10,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:11:10,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:11:10,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:11:10,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:11:10,371 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:11:10,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:11:10,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:11:10,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:11:10,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:11:10,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:11:10,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:11:10,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:11:10,377 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:11:10,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:11:10,377 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:11:10,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:11:10,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:11:10,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:11:10,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:11:10,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:11:10,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:11:10,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:11:10,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:11:10,380 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:11:10,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:11:10,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:11:10,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:11:10,381 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:11:10,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:11:10,381 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a1c69a049a9608f95ac90730c4f7554434241d21538bbd7cbbae38e9a8e04bb
[2024-11-08 18:11:10,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:11:10,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:11:10,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:11:10,752 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:11:10,756 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:11:10,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c
Unable to find full path for "g++"
[2024-11-08 18:11:12,898 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:11:13,108 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:11:13,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c
[2024-11-08 18:11:13,117 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/data/6b6a5d11e/98a5b0dd38df441cb42525ec716db6f0/FLAG448a1a647
[2024-11-08 18:11:13,132 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/data/6b6a5d11e/98a5b0dd38df441cb42525ec716db6f0
[2024-11-08 18:11:13,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:11:13,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:11:13,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:11:13,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:11:13,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:11:13,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46b953fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13, skipping insertion in model container
[2024-11-08 18:11:13,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,199 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:11:13,403 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_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1248,1261]
[2024-11-08 18:11:13,449 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:11:13,460 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:11:13,469 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_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1248,1261]
[2024-11-08 18:11:13,492 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:11:13,507 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:11:13,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13 WrapperNode
[2024-11-08 18:11:13,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:11:13,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:11:13,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:11:13,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:11:13,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,565 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 215
[2024-11-08 18:11:13,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:11:13,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:11:13,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:11:13,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:11:13,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,600 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].
[2024-11-08 18:11:13,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,619 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:11:13,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:11:13,620 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:11:13,620 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:11:13,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (1/1) ...
[2024-11-08 18:11:13,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:11:13,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:11:13,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:11:13,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:11:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:11:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:11:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:11:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:11:13,823 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:11:13,827 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:11:14,310 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live.
[2024-11-08 18:11:14,310 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:11:14,323 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:11:14,323 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 18:11:14,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:11:14 BoogieIcfgContainer
[2024-11-08 18:11:14,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:11:14,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:11:14,327 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:11:14,330 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:11:14,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:11:13" (1/3) ...
[2024-11-08 18:11:14,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7065eb56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:11:14, skipping insertion in model container
[2024-11-08 18:11:14,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:13" (2/3) ...
[2024-11-08 18:11:14,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7065eb56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:11:14, skipping insertion in model container
[2024-11-08 18:11:14,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:11:14" (3/3) ...
[2024-11-08 18:11:14,333 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pipeline.c
[2024-11-08 18:11:14,355 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:11:14,356 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:11:14,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:11:14,418 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;@516ce41c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:11:14,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 18:11:14,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 58 states have internal predecessors, (85), 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)
[2024-11-08 18:11:14,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-08 18:11:14,431 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:11:14,432 INFO L215 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]
[2024-11-08 18:11:14,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:11:14,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:11:14,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1934217472, now seen corresponding path program 1 times
[2024-11-08 18:11:14,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:11:14,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576667946]
[2024-11-08 18:11:14,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:11:14,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:11:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:11:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:11:15,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:11:15,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576667946]
[2024-11-08 18:11:15,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576667946] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:11:15,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:11:15,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:11:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051556649]
[2024-11-08 18:11:15,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:11:15,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:11:15,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:11:15,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:11:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:11:15,224 INFO L87 Difference]: Start difference. First operand has 59 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 58 states have internal predecessors, (85), 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 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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)
[2024-11-08 18:11:15,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:11:15,286 INFO L93 Difference]: Finished difference Result 94 states and 138 transitions.
[2024-11-08 18:11:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:11:15,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23
[2024-11-08 18:11:15,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:11:15,301 INFO L225 Difference]: With dead ends: 94
[2024-11-08 18:11:15,302 INFO L226 Difference]: Without dead ends: 57
[2024-11-08 18:11:15,305 INFO L431 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
[2024-11-08 18:11:15,309 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 225 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
[2024-11-08 18:11:15,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 225 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:11:15,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-08 18:11:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2024-11-08 18:11:15,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 56 states have internal predecessors, (81), 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)
[2024-11-08 18:11:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 81 transitions.
[2024-11-08 18:11:15,351 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 81 transitions. Word has length 23
[2024-11-08 18:11:15,352 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:11:15,352 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 81 transitions.
[2024-11-08 18:11:15,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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)
[2024-11-08 18:11:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 81 transitions.
[2024-11-08 18:11:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 18:11:15,354 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:11:15,355 INFO L215 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]
[2024-11-08 18:11:15,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:11:15,355 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:11:15,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:11:15,356 INFO L85 PathProgramCache]: Analyzing trace with hash -167105238, now seen corresponding path program 1 times
[2024-11-08 18:11:15,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:11:15,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571847293]
[2024-11-08 18:11:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:11:15,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:11:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:11:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:11:15,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:11:15,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571847293]
[2024-11-08 18:11:15,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571847293] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:11:15,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:11:15,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:11:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605098404]
[2024-11-08 18:11:15,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:11:15,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:11:15,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:11:15,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:11:15,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:11:15,589 INFO L87 Difference]: Start difference. First operand 57 states and 81 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2024-11-08 18:11:15,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:11:15,641 INFO L93 Difference]: Finished difference Result 94 states and 133 transitions.
[2024-11-08 18:11:15,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:11:15,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24
[2024-11-08 18:11:15,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:11:15,644 INFO L225 Difference]: With dead ends: 94
[2024-11-08 18:11:15,645 INFO L226 Difference]: Without dead ends: 59
[2024-11-08 18:11:15,645 INFO L431 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
[2024-11-08 18:11:15,648 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 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
[2024-11-08 18:11:15,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:11:15,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2024-11-08 18:11:15,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2024-11-08 18:11:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 58 states have internal predecessors, (83), 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)
[2024-11-08 18:11:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions.
[2024-11-08 18:11:15,662 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 24
[2024-11-08 18:11:15,662 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:11:15,662 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions.
[2024-11-08 18:11:15,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2024-11-08 18:11:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions.
[2024-11-08 18:11:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-08 18:11:15,665 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:11:15,666 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:11:15,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 18:11:15,666 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:11:15,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:11:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1983260903, now seen corresponding path program 1 times
[2024-11-08 18:11:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:11:15,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455088756]
[2024-11-08 18:11:15,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:11:15,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:11:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:11:16,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:11:16,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:11:16,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455088756]
[2024-11-08 18:11:16,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455088756] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:11:16,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:11:16,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 18:11:16,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100726204]
[2024-11-08 18:11:16,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:11:16,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:11:16,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:11:16,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:11:16,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:11:16,158 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:11:16,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:11:16,255 INFO L93 Difference]: Finished difference Result 100 states and 140 transitions.
[2024-11-08 18:11:16,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:11:16,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2024-11-08 18:11:16,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:11:16,257 INFO L225 Difference]: With dead ends: 100
[2024-11-08 18:11:16,257 INFO L226 Difference]: Without dead ends: 63
[2024-11-08 18:11:16,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:11:16,260 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 68 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:11:16,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 272 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:11:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2024-11-08 18:11:16,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62.
[2024-11-08 18:11:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 61 states have internal predecessors, (86), 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)
[2024-11-08 18:11:16,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 86 transitions.
[2024-11-08 18:11:16,270 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 86 transitions. Word has length 25
[2024-11-08 18:11:16,271 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:11:16,271 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 86 transitions.
[2024-11-08 18:11:16,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:11:16,271 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 86 transitions.
[2024-11-08 18:11:16,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 18:11:16,272 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:11:16,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:11:16,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 18:11:16,273 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:11:16,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:11:16,274 INFO L85 PathProgramCache]: Analyzing trace with hash 212999373, now seen corresponding path program 1 times
[2024-11-08 18:11:16,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:11:16,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943127319]
[2024-11-08 18:11:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:11:16,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:11:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:11:16,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:11:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:11:16,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:11:16,398 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 18:11:16,402 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 18:11:16,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 18:11:16,410 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-11-08 18:11:16,441 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null
[2024-11-08 18:11:16,450 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 18:11:16,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:11:16 BoogieIcfgContainer
[2024-11-08 18:11:16,456 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 18:11:16,461 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:11:16,461 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:11:16,461 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:11:16,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:11:14" (3/4) ...
[2024-11-08 18:11:16,465 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 18:11:16,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 18:11:16,467 INFO L158 Benchmark]: Toolchain (without parser) took 3330.41ms. Allocated memory was 117.4MB in the beginning and 186.6MB in the end (delta: 69.2MB). Free memory was 55.2MB in the beginning and 114.7MB in the end (delta: -59.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB.
[2024-11-08 18:11:16,467 INFO L158 Benchmark]: CDTParser took 3.80ms. Allocated memory is still 117.4MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:11:16,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.20ms. Allocated memory is still 155.2MB. Free memory was 127.7MB in the beginning and 115.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB.
[2024-11-08 18:11:16,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.23ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 111.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 18:11:16,471 INFO L158 Benchmark]: Boogie Preprocessor took 52.62ms. Allocated memory is still 155.2MB. Free memory was 111.6MB in the beginning and 108.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:11:16,471 INFO L158 Benchmark]: RCFGBuilder took 704.37ms. Allocated memory is still 155.2MB. Free memory was 108.8MB in the beginning and 108.5MB in the end (delta: 337.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 18:11:16,472 INFO L158 Benchmark]: TraceAbstraction took 2133.76ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 107.7MB in the beginning and 114.7MB in the end (delta: -7.0MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB.
[2024-11-08 18:11:16,473 INFO L158 Benchmark]: Witness Printer took 5.25ms. Allocated memory is still 186.6MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:11:16,475 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 3.80ms. Allocated memory is still 117.4MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 356.20ms. Allocated memory is still 155.2MB. Free memory was 127.7MB in the beginning and 115.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 56.23ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 111.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 52.62ms. Allocated memory is still 155.2MB. Free memory was 111.6MB in the beginning and 108.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 704.37ms. Allocated memory is still 155.2MB. Free memory was 108.8MB in the beginning and 108.5MB in the end (delta: 337.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 2133.76ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 107.7MB in the beginning and 114.7MB in the end (delta: -7.0MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB.
* Witness Printer took 5.25ms. Allocated memory is still 186.6MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of bitwiseAnd at line 83.
Possible FailurePath:
[L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32);
[L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 1);
[L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 1);
[L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (1 - 1);
[L32] const SORT_1 var_8 = 0;
[L33] const SORT_4 var_21 = 1;
[L35] SORT_1 input_2;
[L36] SORT_1 input_3;
[L37] SORT_4 input_5;
[L38] SORT_1 input_6;
[L39] SORT_4 input_7;
[L41] EXPR __VERIFIER_nondet_uint() & mask_SORT_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, var_21=1, var_8=0]
[L41] SORT_1 state_9 = __VERIFIER_nondet_uint() & mask_SORT_1;
[L42] EXPR __VERIFIER_nondet_uint() & mask_SORT_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, var_21=1, var_8=0]
[L42] SORT_1 state_11 = __VERIFIER_nondet_uint() & mask_SORT_1;
[L43] EXPR __VERIFIER_nondet_uint() & mask_SORT_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, var_21=1, var_8=0]
[L43] SORT_1 state_13 = __VERIFIER_nondet_uint() & mask_SORT_1;
[L44] EXPR __VERIFIER_nondet_uint() & mask_SORT_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, var_21=1, var_8=0]
[L44] SORT_1 state_26 = __VERIFIER_nondet_uint() & mask_SORT_1;
[L45] EXPR __VERIFIER_nondet_uint() & mask_SORT_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, var_21=1, var_8=0]
[L45] SORT_1 state_28 = __VERIFIER_nondet_uint() & mask_SORT_1;
[L47] SORT_1 init_10_arg_1 = var_8;
[L48] state_9 = init_10_arg_1
[L49] SORT_1 init_12_arg_1 = var_8;
[L50] state_11 = init_12_arg_1
[L51] SORT_1 init_14_arg_1 = var_8;
[L52] state_13 = init_14_arg_1
[L53] SORT_1 init_27_arg_1 = var_8;
[L54] state_26 = init_27_arg_1
[L55] SORT_1 init_29_arg_1 = var_8;
[L56] state_28 = init_29_arg_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_21=1, var_8=0]
[L59] input_2 = __VERIFIER_nondet_uint()
[L60] input_3 = __VERIFIER_nondet_uint()
[L61] input_5 = __VERIFIER_nondet_uchar()
[L62] input_6 = __VERIFIER_nondet_uint()
[L63] input_7 = __VERIFIER_nondet_uchar()
[L66] SORT_1 var_15_arg_0 = state_11;
[L67] SORT_1 var_15_arg_1 = state_13;
[L68] SORT_1 var_15 = var_15_arg_0 + var_15_arg_1;
VAL [mask_SORT_1=-1, mask_SORT_4=1, state_26=0, state_28=0, state_9=0, var_15=0, var_21=1, var_8=0]
[L69] EXPR var_15 & mask_SORT_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, state_26=0, state_28=0, state_9=0, var_21=1, var_8=0]
[L69] var_15 = var_15 & mask_SORT_1
[L70] SORT_1 var_16_arg_0 = state_9;
[L71] SORT_1 var_16_arg_1 = var_15;
[L72] SORT_4 var_16 = var_16_arg_0 == var_16_arg_1;
[L73] SORT_1 var_17_arg_0 = state_9;
[L74] SORT_1 var_17_arg_1 = var_8;
[L75] SORT_4 var_17 = var_17_arg_0 == var_17_arg_1;
[L76] SORT_4 var_18_arg_0 = var_16;
[L77] SORT_4 var_18_arg_1 = var_17;
VAL [mask_SORT_1=-1, mask_SORT_4=1, state_26=0, state_28=0, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_8=0]
[L78] EXPR var_18_arg_0 | var_18_arg_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, state_26=0, state_28=0, var_21=1, var_8=0]
[L78] SORT_4 var_18 = var_18_arg_0 | var_18_arg_1;
[L79] SORT_4 var_22_arg_0 = var_18;
[L80] SORT_4 var_22 = ~var_22_arg_0;
[L81] SORT_4 var_23_arg_0 = var_21;
[L82] SORT_4 var_23_arg_1 = var_22;
VAL [mask_SORT_1=-1, mask_SORT_4=1, state_26=0, state_28=0, var_21=1, var_23_arg_0=1, var_23_arg_1=-2, var_8=0]
[L83] EXPR var_23_arg_0 & var_23_arg_1
VAL [mask_SORT_1=-1, mask_SORT_4=1, state_26=0, state_28=0, var_21=1, var_8=0]
[L83] SORT_4 var_23 = var_23_arg_0 & var_23_arg_1;
[L84] EXPR var_23 & mask_SORT_4
VAL [mask_SORT_1=-1, mask_SORT_4=1, state_26=0, state_28=0, var_21=1, var_8=0]
[L84] var_23 = var_23 & mask_SORT_4
[L85] SORT_4 bad_24_arg_0 = var_23;
[L86] CALL __VERIFIER_assert(!(bad_24_arg_0))
[L21] COND TRUE !(cond)
[L21] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 718 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 494 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 224 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-08 18:11:16,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX --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 5a1c69a049a9608f95ac90730c4f7554434241d21538bbd7cbbae38e9a8e04bb
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:11:19,147 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:11:19,248 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2024-11-08 18:11:19,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:11:19,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:11:19,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:11:19,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:11:19,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:11:19,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:11:19,291 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:11:19,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:11:19,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:11:19,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:11:19,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:11:19,295 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:11:19,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:11:19,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:11:19,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:11:19,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:11:19,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:11:19,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:11:19,301 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 18:11:19,301 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 18:11:19,302 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:11:19,305 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 18:11:19,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:11:19,306 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:11:19,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:11:19,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:11:19,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:11:19,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:11:19,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:11:19,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:11:19,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:11:19,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:11:19,308 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 18:11:19,309 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 18:11:19,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:11:19,309 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:11:19,309 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:11:19,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:11:19,328 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a1c69a049a9608f95ac90730c4f7554434241d21538bbd7cbbae38e9a8e04bb
[2024-11-08 18:11:19,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:11:19,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:11:19,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:11:19,804 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:11:19,805 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:11:19,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c
Unable to find full path for "g++"
[2024-11-08 18:11:21,994 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:11:22,272 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:11:22,272 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c
[2024-11-08 18:11:22,281 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/data/8d1a82273/66e65eb1158d4060bcf3ddc234204966/FLAG6ab04fa92
[2024-11-08 18:11:22,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/data/8d1a82273/66e65eb1158d4060bcf3ddc234204966
[2024-11-08 18:11:22,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:11:22,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:11:22,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:11:22,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:11:22,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:11:22,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:11:22" (1/1) ...
[2024-11-08 18:11:22,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e635ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:22, skipping insertion in model container
[2024-11-08 18:11:22,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:11:22" (1/1) ...
[2024-11-08 18:11:22,668 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:11:22,947 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_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1248,1261]
[2024-11-08 18:11:23,017 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:11:23,037 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:11:23,055 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_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1248,1261]
[2024-11-08 18:11:23,087 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:11:23,108 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:11:23,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23 WrapperNode
[2024-11-08 18:11:23,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:11:23,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:11:23,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:11:23,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:11:23,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,158 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 119
[2024-11-08 18:11:23,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:11:23,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:11:23,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:11:23,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:11:23,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,179 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,199 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].
[2024-11-08 18:11:23,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:11:23,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:11:23,227 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:11:23,228 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:11:23,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (1/1) ...
[2024-11-08 18:11:23,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:11:23,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:11:23,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:11:23,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:11:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:11:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 18:11:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:11:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:11:23,425 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:11:23,427 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:11:23,635 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live.
[2024-11-08 18:11:23,635 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:11:23,651 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:11:23,652 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 18:11:23,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:11:23 BoogieIcfgContainer
[2024-11-08 18:11:23,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:11:23,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:11:23,654 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:11:23,656 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:11:23,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:11:22" (1/3) ...
[2024-11-08 18:11:23,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a45dd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:11:23, skipping insertion in model container
[2024-11-08 18:11:23,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:11:23" (2/3) ...
[2024-11-08 18:11:23,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a45dd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:11:23, skipping insertion in model container
[2024-11-08 18:11:23,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:11:23" (3/3) ...
[2024-11-08 18:11:23,659 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pipeline.c
[2024-11-08 18:11:23,678 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:11:23,678 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:11:23,746 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:11:23,753 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;@3908b885, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:11:23,754 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 18:11:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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)
[2024-11-08 18:11:23,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-08 18:11:23,769 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:11:23,771 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-08 18:11:23,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:11:23,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:11:23,780 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times
[2024-11-08 18:11:23,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:11:23,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087027322]
[2024-11-08 18:11:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:11:23,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:11:23,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:11:23,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:11:23,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:11:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:11:23,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-08 18:11:23,973 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:11:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:11:24,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:11:24,225 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:11:24,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087027322]
[2024-11-08 18:11:24,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087027322] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:11:24,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:11:24,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:11:24,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872333584]
[2024-11-08 18:11:24,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:11:24,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:11:24,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:11:24,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:11:24,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:11:24,269 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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)
[2024-11-08 18:11:24,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:11:24,312 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions.
[2024-11-08 18:11:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:11:24,315 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
[2024-11-08 18:11:24,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:11:24,325 INFO L225 Difference]: With dead ends: 18
[2024-11-08 18:11:24,325 INFO L226 Difference]: Without dead ends: 9
[2024-11-08 18:11:24,328 INFO L431 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
[2024-11-08 18:11:24,334 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:11:24,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:11:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-11-08 18:11:24,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-11-08 18:11:24,363 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)
[2024-11-08 18:11:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-11-08 18:11:24,365 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5
[2024-11-08 18:11:24,365 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:11:24,366 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-11-08 18:11:24,366 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)
[2024-11-08 18:11:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-11-08 18:11:24,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:11:24,366 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:11:24,367 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:11:24,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 18:11:24,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:11:24,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:11:24,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:11:24,572 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times
[2024-11-08 18:11:24,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:11:24,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053492982]
[2024-11-08 18:11:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:11:24,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:11:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:11:24,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:11:24,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:11:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:11:24,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-08 18:11:24,701 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:11:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:11:25,007 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:11:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:11:25,767 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:11:25,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053492982]
[2024-11-08 18:11:25,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053492982] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:11:25,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:11:25,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-11-08 18:11:25,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656315354]
[2024-11-08 18:11:25,770 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:11:25,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 18:11:25,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:11:25,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 18:11:25,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:11:25,774 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:11:25,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:11:25,907 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions.
[2024-11-08 18:11:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 18:11:25,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-11-08 18:11:25,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:11:25,909 INFO L225 Difference]: With dead ends: 14
[2024-11-08 18:11:25,909 INFO L226 Difference]: Without dead ends: 12
[2024-11-08 18:11:25,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:11:25,910 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:11:25,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:11:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2024-11-08 18:11:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2024-11-08 18:11:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:11:25,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2024-11-08 18:11:25,918 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8
[2024-11-08 18:11:25,918 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:11:25,918 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions.
[2024-11-08 18:11:25,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:11:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2024-11-08 18:11:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 18:11:25,919 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:11:25,920 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2024-11-08 18:11:25,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 18:11:26,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:11:26,121 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:11:26,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:11:26,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times
[2024-11-08 18:11:26,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:11:26,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508064771]
[2024-11-08 18:11:26,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 18:11:26,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:11:26,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:11:26,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:11:26,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 18:11:26,346 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 18:11:26,346 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:11:26,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-08 18:11:26,353 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:11:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:11:26,747 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:11:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 18:11:28,968 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:11:28,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508064771]
[2024-11-08 18:11:28,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508064771] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:11:28,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:11:28,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9
[2024-11-08 18:11:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638111582]
[2024-11-08 18:11:28,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:11:28,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 18:11:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:11:28,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 18:11:28,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-11-08 18:11:28,975 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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)
[2024-11-08 18:11:29,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:11:29,826 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions.
[2024-11-08 18:11:29,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 18:11:29,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-08 18:11:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:11:29,828 INFO L225 Difference]: With dead ends: 14
[2024-11-08 18:11:29,828 INFO L226 Difference]: Without dead ends: 0
[2024-11-08 18:11:29,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240
[2024-11-08 18:11:29,831 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:11:29,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:11:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 18:11:29,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 18:11:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:11:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 18:11:29,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11
[2024-11-08 18:11:29,837 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:11:29,837 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 18:11:29,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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)
[2024-11-08 18:11:29,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 18:11:29,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 18:11:29,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 18:11:29,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 18:11:30,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:11:30,046 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1]
[2024-11-08 18:11:30,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-08 18:11:36,037 WARN L286 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 98 DAG size of output: 41 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)
[2024-11-08 18:11:36,041 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 18:11:36,058 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-11-08 18:11:36,061 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-11-08 18:11:36,062 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-11-08 18:11:36,062 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-11-08 18:11:36,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:11:36 BoogieIcfgContainer
[2024-11-08 18:11:36,063 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 18:11:36,064 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:11:36,064 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:11:36,065 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:11:36,065 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:11:23" (3/4) ...
[2024-11-08 18:11:36,068 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-08 18:11:36,076 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges
[2024-11-08 18:11:36,077 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-08 18:11:36,077 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-08 18:11:36,077 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 18:11:36,117 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception:
java.lang.NullPointerException
at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80)
at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61)
at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1)
at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156)
at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91)
at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237)
at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106)
at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111)
at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168)
at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2024-11-08 18:11:36,122 INFO L158 Benchmark]: Toolchain (without parser) took 13535.46ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 55.3MB in the beginning and 40.3MB in the end (delta: 15.0MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB.
[2024-11-08 18:11:36,122 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:11:36,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.23ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 40.6MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-11-08 18:11:36,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.11ms. Allocated memory is still 79.7MB. Free memory was 40.6MB in the beginning and 38.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:11:36,123 INFO L158 Benchmark]: Boogie Preprocessor took 66.70ms. Allocated memory is still 79.7MB. Free memory was 38.7MB in the beginning and 36.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:11:36,123 INFO L158 Benchmark]: RCFGBuilder took 425.06ms. Allocated memory is still 79.7MB. Free memory was 36.2MB in the beginning and 47.3MB in the end (delta: -11.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-11-08 18:11:36,124 INFO L158 Benchmark]: TraceAbstraction took 12409.65ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 46.6MB in the beginning and 42.4MB in the end (delta: 4.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB.
[2024-11-08 18:11:36,124 INFO L158 Benchmark]: Witness Printer took 57.13ms. Allocated memory is still 117.4MB. Free memory was 42.4MB in the beginning and 40.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:11:36,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 521.23ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 40.6MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 49.11ms. Allocated memory is still 79.7MB. Free memory was 40.6MB in the beginning and 38.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 66.70ms. Allocated memory is still 79.7MB. Free memory was 38.7MB in the beginning and 36.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 425.06ms. Allocated memory is still 79.7MB. Free memory was 36.2MB in the beginning and 47.3MB in the end (delta: -11.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 12409.65ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 46.6MB in the beginning and 42.4MB in the end (delta: 4.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB.
* Witness Printer took 57.13ms. Allocated memory is still 117.4MB. Free memory was 42.4MB in the beginning and 40.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 21]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 11 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 11 QuantifiedInterpolants, 1811 SizeOfPredicates, 13 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 3/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
* Results from de.uni_freiburg.informatik.ultimate.witnessprinter:
- ExceptionOrErrorResult: NullPointerException: null
de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2024-11-08 18:11:36,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb3f7e32-60d2-4a85-9765-8d5c74a576b8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
ERROR: ExceptionOrErrorResult: NullPointerException: null