./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label28.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 826ab2ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label28.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0a5cf50440c9e896d19b51bcdf6c9c62935ca0e3dc457582cf7d4a77a7eac75
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 13:51:35,033 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-13 13:51:35,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-13 13:51:35,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 13:51:35,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 13:51:35,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 13:51:35,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 13:51:35,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 13:51:35,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 13:51:35,142 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-13 13:51:35,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 13:51:35,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 13:51:35,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 13:51:35,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-13 13:51:35,143 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-13 13:51:35,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 13:51:35,143 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-13 13:51:35,143 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-13 13:51:35,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-13 13:51:35,144 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-13 13:51:35,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-13 13:51:35,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 13:51:35,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 13:51:35,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 13:51:35,144 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-13 13:51:35,144 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-13 13:51:35,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-13 13:51:35,145 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-13 13:51:35,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 13:51:35,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-13 13:51:35,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 13:51:35,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-13 13:51:35,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 13:51:35,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 13:51:35,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 13:51:35,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 13:51:35,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-13 13:51:35,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 13:51:35,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 13:51:35,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 13:51:35,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 13:51:35,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 13:51:35,147 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a5cf50440c9e896d19b51bcdf6c9c62935ca0e3dc457582cf7d4a77a7eac75
[2024-11-13 13:51:35,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 13:51:35,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 13:51:35,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 13:51:35,511 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-13 13:51:35,512 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-13 13:51:35,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem01_label28.c
Unable to find full path for "g++"
[2024-11-13 13:51:37,544 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-13 13:51:37,949 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-13 13:51:37,950 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/sv-benchmarks/c/eca-rers2012/Problem01_label28.c
[2024-11-13 13:51:37,962 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/data/b51636689/e68f775fbd924e9cb0155da99dbebeaa/FLAG0d68abf5f
[2024-11-13 13:51:37,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/data/b51636689/e68f775fbd924e9cb0155da99dbebeaa
[2024-11-13 13:51:37,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 13:51:37,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 13:51:37,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 13:51:37,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 13:51:38,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 13:51:38,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:51:37" (1/1) ...
[2024-11-13 13:51:38,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3700b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38, skipping insertion in model container
[2024-11-13 13:51:38,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:51:37" (1/1) ...
[2024-11-13 13:51:38,059 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-13 13:51:38,452 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_9407dc20-1b53-41df-8cc1-e64e5379618b/sv-benchmarks/c/eca-rers2012/Problem01_label28.c[17117,17130]
[2024-11-13 13:51:38,520 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 13:51:38,537 INFO L200 MainTranslator]: Completed pre-run
[2024-11-13 13:51:38,670 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_9407dc20-1b53-41df-8cc1-e64e5379618b/sv-benchmarks/c/eca-rers2012/Problem01_label28.c[17117,17130]
[2024-11-13 13:51:38,695 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-13 13:51:38,718 INFO L204 MainTranslator]: Completed translation
[2024-11-13 13:51:38,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38 WrapperNode
[2024-11-13 13:51:38,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 13:51:38,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 13:51:38,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 13:51:38,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 13:51:38,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,803 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657
[2024-11-13 13:51:38,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 13:51:38,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 13:51:38,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 13:51:38,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 13:51:38,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,820 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,855 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-13 13:51:38,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 13:51:38,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 13:51:38,924 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 13:51:38,925 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-13 13:51:38,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (1/1) ...
[2024-11-13 13:51:38,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 13:51:38,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:51:38,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 13:51:38,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 13:51:39,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 13:51:39,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 13:51:39,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 13:51:39,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 13:51:39,083 INFO L238 CfgBuilder]: Building ICFG
[2024-11-13 13:51:39,085 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 13:51:40,439 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live.
[2024-11-13 13:51:40,441 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-13 13:51:40,465 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 13:51:40,467 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 13:51:40,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:51:40 BoogieIcfgContainer
[2024-11-13 13:51:40,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 13:51:40,471 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 13:51:40,471 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 13:51:40,477 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-13 13:51:40,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:51:37" (1/3) ...
[2024-11-13 13:51:40,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e9bf97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:51:40, skipping insertion in model container
[2024-11-13 13:51:40,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:38" (2/3) ...
[2024-11-13 13:51:40,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e9bf97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:51:40, skipping insertion in model container
[2024-11-13 13:51:40,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:51:40" (3/3) ...
[2024-11-13 13:51:40,479 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label28.c
[2024-11-13 13:51:40,495 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 13:51:40,496 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem01_label28.c that has 1 procedures, 198 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 13:51:40,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 13:51:40,589 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;@722b9000, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 13:51:40,590 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 13:51:40,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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)
[2024-11-13 13:51:40,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2024-11-13 13:51:40,607 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:51:40,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:40,609 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:51:40,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:51:40,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1028850651, now seen corresponding path program 1 times
[2024-11-13 13:51:40,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:51:40,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549532813]
[2024-11-13 13:51:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:40,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:51:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:51:41,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:51:41,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549532813]
[2024-11-13 13:51:41,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549532813] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:51:41,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:51:41,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 13:51:41,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461906705]
[2024-11-13 13:51:41,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:51:41,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:51:41,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:51:41,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:51:41,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:41,405 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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)
[2024-11-13 13:51:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:51:42,425 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions.
[2024-11-13 13:51:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:51:42,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 93
[2024-11-13 13:51:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:51:42,437 INFO L225 Difference]: With dead ends: 528
[2024-11-13 13:51:42,437 INFO L226 Difference]: Without dead ends: 266
[2024-11-13 13:51:42,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:42,443 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 102 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-13 13:51:42,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-13 13:51:42,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2024-11-13 13:51:42,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2024-11-13 13:51:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 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)
[2024-11-13 13:51:42,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions.
[2024-11-13 13:51:42,509 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 93
[2024-11-13 13:51:42,510 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:51:42,511 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions.
[2024-11-13 13:51:42,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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)
[2024-11-13 13:51:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions.
[2024-11-13 13:51:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2024-11-13 13:51:42,517 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:51:42,517 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:42,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 13:51:42,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:51:42,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:51:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1435241042, now seen corresponding path program 1 times
[2024-11-13 13:51:42,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:51:42,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572484702]
[2024-11-13 13:51:42,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:42,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:51:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:42,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:51:42,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:51:42,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572484702]
[2024-11-13 13:51:42,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572484702] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:51:42,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:51:42,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 13:51:42,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322499403]
[2024-11-13 13:51:42,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:51:42,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:51:42,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:51:42,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:51:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:42,680 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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)
[2024-11-13 13:51:43,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:51:43,272 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions.
[2024-11-13 13:51:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:51:43,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 98
[2024-11-13 13:51:43,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:51:43,278 INFO L225 Difference]: With dead ends: 792
[2024-11-13 13:51:43,281 INFO L226 Difference]: Without dead ends: 528
[2024-11-13 13:51:43,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:43,283 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-13 13:51:43,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-13 13:51:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states.
[2024-11-13 13:51:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528.
[2024-11-13 13:51:43,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 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)
[2024-11-13 13:51:43,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions.
[2024-11-13 13:51:43,324 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 98
[2024-11-13 13:51:43,324 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:51:43,324 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions.
[2024-11-13 13:51:43,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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)
[2024-11-13 13:51:43,324 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions.
[2024-11-13 13:51:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-13 13:51:43,331 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:51:43,331 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:43,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 13:51:43,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:51:43,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:51:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash 200268999, now seen corresponding path program 1 times
[2024-11-13 13:51:43,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:51:43,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791790508]
[2024-11-13 13:51:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:43,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:51:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:51:43,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:51:43,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791790508]
[2024-11-13 13:51:43,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791790508] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:51:43,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:51:43,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 13:51:43,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597736719]
[2024-11-13 13:51:43,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:51:43,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:51:43,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:51:43,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:51:43,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:43,714 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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)
[2024-11-13 13:51:44,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:51:44,241 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions.
[2024-11-13 13:51:44,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:51:44,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 108
[2024-11-13 13:51:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:51:44,245 INFO L225 Difference]: With dead ends: 1447
[2024-11-13 13:51:44,245 INFO L226 Difference]: Without dead ends: 921
[2024-11-13 13:51:44,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:44,247 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-13 13:51:44,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 56 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-13 13:51:44,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states.
[2024-11-13 13:51:44,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790.
[2024-11-13 13:51:44,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.3219264892268694) internal successors, (1043), 789 states have internal predecessors, (1043), 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)
[2024-11-13 13:51:44,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1043 transitions.
[2024-11-13 13:51:44,277 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1043 transitions. Word has length 108
[2024-11-13 13:51:44,277 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:51:44,277 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 1043 transitions.
[2024-11-13 13:51:44,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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)
[2024-11-13 13:51:44,277 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1043 transitions.
[2024-11-13 13:51:44,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-11-13 13:51:44,280 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:51:44,281 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:44,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 13:51:44,281 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:51:44,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:51:44,282 INFO L85 PathProgramCache]: Analyzing trace with hash 410142230, now seen corresponding path program 1 times
[2024-11-13 13:51:44,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:51:44,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951894221]
[2024-11-13 13:51:44,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:44,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:51:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:44,536 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-13 13:51:44,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:51:44,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951894221]
[2024-11-13 13:51:44,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951894221] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:51:44,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:51:44,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 13:51:44,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938016586]
[2024-11-13 13:51:44,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:51:44,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:51:44,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:51:44,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:51:44,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:44,540 INFO L87 Difference]: Start difference. First operand 790 states and 1043 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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)
[2024-11-13 13:51:45,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:51:45,086 INFO L93 Difference]: Finished difference Result 1840 states and 2437 transitions.
[2024-11-13 13:51:45,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:51:45,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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 109
[2024-11-13 13:51:45,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:51:45,091 INFO L225 Difference]: With dead ends: 1840
[2024-11-13 13:51:45,091 INFO L226 Difference]: Without dead ends: 1052
[2024-11-13 13:51:45,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:45,094 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 131 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-13 13:51:45,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 61 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-13 13:51:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states.
[2024-11-13 13:51:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052.
[2024-11-13 13:51:45,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.2759276879162702) internal successors, (1341), 1051 states have internal predecessors, (1341), 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)
[2024-11-13 13:51:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1341 transitions.
[2024-11-13 13:51:45,128 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1341 transitions. Word has length 109
[2024-11-13 13:51:45,128 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:51:45,128 INFO L471 AbstractCegarLoop]: Abstraction has 1052 states and 1341 transitions.
[2024-11-13 13:51:45,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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)
[2024-11-13 13:51:45,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1341 transitions.
[2024-11-13 13:51:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2024-11-13 13:51:45,132 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:51:45,132 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:45,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 13:51:45,133 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:51:45,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:51:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1512298175, now seen corresponding path program 1 times
[2024-11-13 13:51:45,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:51:45,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141256008]
[2024-11-13 13:51:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:45,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:51:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:51:45,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:51:45,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141256008]
[2024-11-13 13:51:45,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141256008] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:51:45,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:51:45,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:51:45,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530336159]
[2024-11-13 13:51:45,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:51:45,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 13:51:45,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:51:45,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 13:51:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 13:51:45,394 INFO L87 Difference]: Start difference. First operand 1052 states and 1341 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 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)
[2024-11-13 13:51:46,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:51:46,190 INFO L93 Difference]: Finished difference Result 2626 states and 3312 transitions.
[2024-11-13 13:51:46,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-13 13:51:46,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 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 112
[2024-11-13 13:51:46,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:51:46,196 INFO L225 Difference]: With dead ends: 2626
[2024-11-13 13:51:46,196 INFO L226 Difference]: Without dead ends: 1576
[2024-11-13 13:51:46,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 13:51:46,198 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 259 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-13 13:51:46,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 60 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-13 13:51:46,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states.
[2024-11-13 13:51:46,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445.
[2024-11-13 13:51:46,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2465373961218837) internal successors, (1800), 1444 states have internal predecessors, (1800), 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)
[2024-11-13 13:51:46,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1800 transitions.
[2024-11-13 13:51:46,235 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1800 transitions. Word has length 112
[2024-11-13 13:51:46,235 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:51:46,235 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1800 transitions.
[2024-11-13 13:51:46,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 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)
[2024-11-13 13:51:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1800 transitions.
[2024-11-13 13:51:46,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-11-13 13:51:46,238 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:51:46,238 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:46,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 13:51:46,238 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:51:46,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:51:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash -676887042, now seen corresponding path program 1 times
[2024-11-13 13:51:46,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:51:46,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763794160]
[2024-11-13 13:51:46,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:46,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:51:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 13:51:46,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:51:46,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763794160]
[2024-11-13 13:51:46,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763794160] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:51:46,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:51:46,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:51:46,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140944244]
[2024-11-13 13:51:46,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:51:46,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:51:46,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:51:46,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:51:46,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:46,383 INFO L87 Difference]: Start difference. First operand 1445 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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)
[2024-11-13 13:51:46,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:51:46,931 INFO L93 Difference]: Finished difference Result 1709 states and 2111 transitions.
[2024-11-13 13:51:46,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:51:46,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 130
[2024-11-13 13:51:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:51:46,940 INFO L225 Difference]: With dead ends: 1709
[2024-11-13 13:51:46,941 INFO L226 Difference]: Without dead ends: 1707
[2024-11-13 13:51:46,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 13:51:46,944 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 63 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-13 13:51:46,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-13 13:51:46,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states.
[2024-11-13 13:51:46,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1445.
[2024-11-13 13:51:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2458448753462603) internal successors, (1799), 1444 states have internal predecessors, (1799), 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)
[2024-11-13 13:51:46,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1799 transitions.
[2024-11-13 13:51:47,001 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1799 transitions. Word has length 130
[2024-11-13 13:51:47,002 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:51:47,002 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1799 transitions.
[2024-11-13 13:51:47,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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)
[2024-11-13 13:51:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1799 transitions.
[2024-11-13 13:51:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2024-11-13 13:51:47,009 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:51:47,009 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:47,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-13 13:51:47,010 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:51:47,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:51:47,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2002273323, now seen corresponding path program 1 times
[2024-11-13 13:51:47,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:51:47,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808735147]
[2024-11-13 13:51:47,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:47,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:51:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked.
[2024-11-13 13:51:47,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:51:47,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808735147]
[2024-11-13 13:51:47,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808735147] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:51:47,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:51:47,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 13:51:47,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817960649]
[2024-11-13 13:51:47,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:51:47,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 13:51:47,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:51:47,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 13:51:47,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 13:51:47,406 INFO L87 Difference]: Start difference. First operand 1445 states and 1799 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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)
[2024-11-13 13:51:48,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:51:48,464 INFO L93 Difference]: Finished difference Result 3281 states and 4085 transitions.
[2024-11-13 13:51:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-13 13:51:48,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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 185
[2024-11-13 13:51:48,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:51:48,472 INFO L225 Difference]: With dead ends: 3281
[2024-11-13 13:51:48,473 INFO L226 Difference]: Without dead ends: 1838
[2024-11-13 13:51:48,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 13:51:48,476 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 225 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-13 13:51:48,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 58 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-13 13:51:48,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states.
[2024-11-13 13:51:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1707.
[2024-11-13 13:51:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.194021101992966) internal successors, (2037), 1706 states have internal predecessors, (2037), 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)
[2024-11-13 13:51:48,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2037 transitions.
[2024-11-13 13:51:48,527 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2037 transitions. Word has length 185
[2024-11-13 13:51:48,528 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:51:48,528 INFO L471 AbstractCegarLoop]: Abstraction has 1707 states and 2037 transitions.
[2024-11-13 13:51:48,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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)
[2024-11-13 13:51:48,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2037 transitions.
[2024-11-13 13:51:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199
[2024-11-13 13:51:48,533 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-13 13:51:48,533 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:48,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 13:51:48,534 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:51:48,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:51:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1176442389, now seen corresponding path program 1 times
[2024-11-13 13:51:48,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:51:48,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137127806]
[2024-11-13 13:51:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:48,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:51:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked.
[2024-11-13 13:51:49,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:51:49,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137127806]
[2024-11-13 13:51:49,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137127806] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 13:51:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992175725]
[2024-11-13 13:51:49,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:51:49,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:51:49,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 13:51:49,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 13:51:49,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-13 13:51:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:51:49,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-13 13:51:49,269 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 13:51:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2024-11-13 13:51:49,579 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 13:51:49,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992175725] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:51:49,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 13:51:49,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2024-11-13 13:51:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001495553]
[2024-11-13 13:51:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:51:49,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 13:51:49,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:51:49,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 13:51:49,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 13:51:49,581 INFO L87 Difference]: Start difference. First operand 1707 states and 2037 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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)
[2024-11-13 13:51:50,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:51:50,198 INFO L93 Difference]: Finished difference Result 3410 states and 4071 transitions.
[2024-11-13 13:51:50,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-13 13:51:50,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 198
[2024-11-13 13:51:50,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:51:50,201 INFO L225 Difference]: With dead ends: 3410
[2024-11-13 13:51:50,201 INFO L226 Difference]: Without dead ends: 0
[2024-11-13 13:51:50,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 13:51:50,205 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 45 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-13 13:51:50,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 190 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-13 13:51:50,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-13 13:51:50,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-13 13:51:50,206 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)
[2024-11-13 13:51:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-13 13:51:50,207 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 198
[2024-11-13 13:51:50,207 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:51:50,207 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-13 13:51:50,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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)
[2024-11-13 13:51:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-13 13:51:50,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-13 13:51:50,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-13 13:51:50,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-13 13:51:50,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 13:51:50,421 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 13:51:50,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-13 13:51:50,642 INFO L173 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-13 13:51:50,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:51:50 BoogieIcfgContainer
[2024-11-13 13:51:50,669 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-13 13:51:50,670 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-13 13:51:50,670 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-13 13:51:50,670 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-13 13:51:50,671 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:51:40" (3/4) ...
[2024-11-13 13:51:50,674 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-13 13:51:50,702 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-13 13:51:50,707 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-13 13:51:50,708 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-13 13:51:50,709 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-13 13:51:50,891 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml
[2024-11-13 13:51:50,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/witness.yml
[2024-11-13 13:51:50,892 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-13 13:51:50,895 INFO L158 Benchmark]: Toolchain (without parser) took 12898.51ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 90.7MB in the beginning and 93.2MB in the end (delta: -2.5MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB.
[2024-11-13 13:51:50,896 INFO L158 Benchmark]: CDTParser took 1.60ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 75.2MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-13 13:51:50,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 723.09ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 64.1MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-13 13:51:50,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.83ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 58.5MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-13 13:51:50,898 INFO L158 Benchmark]: Boogie Preprocessor took 118.95ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 53.7MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-13 13:51:50,898 INFO L158 Benchmark]: RCFGBuilder took 1544.52ms. Allocated memory is still 117.4MB. Free memory was 53.7MB in the beginning and 70.0MB in the end (delta: -16.3MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB.
[2024-11-13 13:51:50,899 INFO L158 Benchmark]: TraceAbstraction took 10198.57ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 69.7MB in the beginning and 105.1MB in the end (delta: -35.4MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB.
[2024-11-13 13:51:50,899 INFO L158 Benchmark]: Witness Printer took 223.36ms. Allocated memory is still 176.2MB. Free memory was 105.1MB in the beginning and 93.2MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-13 13:51:50,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.60ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 75.2MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 723.09ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 64.1MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 82.83ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 58.5MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 118.95ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 53.7MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 1544.52ms. Allocated memory is still 117.4MB. Free memory was 53.7MB in the beginning and 70.0MB in the end (delta: -16.3MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB.
* TraceAbstraction took 10198.57ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 69.7MB in the beginning and 105.1MB in the end (delta: -35.4MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB.
* Witness Printer took 223.36ms. Allocated memory is still 176.2MB. Free memory was 105.1MB in the beginning and 93.2MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 465]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1119 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1119 mSDsluCounter, 529 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 604 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3249 IncrementalHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 604 mSolverCounterUnsat, 477 mSDtfsCounter, 3249 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1707occurred in iteration=7, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 655 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1231 NumberOfCodeBlocks, 1231 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1222 ConstructedInterpolants, 0 QuantifiedInterpolants, 2704 SizeOfPredicates, 0 NumberOfNonLiveVariables, 405 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 691/702 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
- InvariantResult [Line: 593]: Loop Invariant
Derived loop invariant: ((((((a21 == 1) && (a16 <= 5)) || (((a21 == 1) && (a17 == 1)) && (a20 == 1))) || ((a21 <= 0) && (a20 == 1))) || ((a7 != 1) && (a21 == 1))) || (((a21 <= 0) && (a17 == 1)) && (a16 <= 5)))
RESULT: Ultimate proved your program to be correct!
[2024-11-13 13:51:50,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9407dc20-1b53-41df-8cc1-e64e5379618b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE