./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label22.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f365a0f129fa90e96f59a2a67efc46f6bd75f705664f3dab23b0f5e5824e9e07
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:57:29,805 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:57:29,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 00:57:29,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:57:29,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:57:29,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:57:29,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:57:29,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:57:29,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:57:29,935 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:57:29,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:57:29,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:57:29,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:57:29,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:57:29,937 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:57:29,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:57:29,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 00:57:29,937 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:57:29,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 00:57:29,937 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:57:29,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:57:29,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 00:57:29,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:57:29,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 00:57:29,938 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:57:29,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 00:57:29,938 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:57:29,938 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:57:29,939 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:57:29,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:57:29,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:57:29,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:57:29,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:57:29,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:57:29,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:57:29,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:57:29,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:57:29,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:57:29,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:57:29,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:57:29,942 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 00:57:29,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 00:57:29,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 00:57:29,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:57:29,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:57:29,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:57:29,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:57:29,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:57:29,943 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_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f365a0f129fa90e96f59a2a67efc46f6bd75f705664f3dab23b0f5e5824e9e07
[2024-11-24 00:57:30,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:57:30,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:57:30,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:57:30,301 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:57:30,301 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:57:30,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/eca-rers2012/Problem03_label22.c
[2024-11-24 00:57:33,413 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/data/0e9688df4/080a97512fa546039a1203de6c05dd6b/FLAG6da70615a
[2024-11-24 00:57:33,859 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:57:33,862 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/sv-benchmarks/c/eca-rers2012/Problem03_label22.c
[2024-11-24 00:57:33,882 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/data/0e9688df4/080a97512fa546039a1203de6c05dd6b/FLAG6da70615a
[2024-11-24 00:57:33,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/data/0e9688df4/080a97512fa546039a1203de6c05dd6b
[2024-11-24 00:57:33,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:57:33,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:57:33,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:57:33,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:57:33,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:57:33,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:57:33" (1/1) ...
[2024-11-24 00:57:33,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5031d24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:33, skipping insertion in model container
[2024-11-24 00:57:33,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:57:33" (1/1) ...
[2024-11-24 00:57:34,080 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:57:34,860 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_c6f4285a-da41-4707-a750-e001bae53d38/sv-benchmarks/c/eca-rers2012/Problem03_label22.c[56764,56777]
[2024-11-24 00:57:34,918 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:57:34,932 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:57:35,232 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_c6f4285a-da41-4707-a750-e001bae53d38/sv-benchmarks/c/eca-rers2012/Problem03_label22.c[56764,56777]
[2024-11-24 00:57:35,253 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:57:35,283 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:57:35,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35 WrapperNode
[2024-11-24 00:57:35,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:57:35,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:57:35,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:57:35,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:57:35,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,485 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771
[2024-11-24 00:57:35,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:57:35,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:57:35,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:57:35,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:57:35,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,519 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,574 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-24 00:57:35,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,630 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:57:35,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:57:35,711 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:57:35,711 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:57:35,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (1/1) ...
[2024-11-24 00:57:35,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:57:35,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:57:35,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:57:35,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:57:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:57:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:57:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:57:35,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:57:35,901 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:57:35,903 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:57:38,771 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live.
[2024-11-24 00:57:38,771 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:57:38,789 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:57:38,790 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-24 00:57:38,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:57:38 BoogieIcfgContainer
[2024-11-24 00:57:38,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:57:38,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:57:38,793 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:57:38,798 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:57:38,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:57:33" (1/3) ...
[2024-11-24 00:57:38,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ae07cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:57:38, skipping insertion in model container
[2024-11-24 00:57:38,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:35" (2/3) ...
[2024-11-24 00:57:38,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ae07cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:57:38, skipping insertion in model container
[2024-11-24 00:57:38,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:57:38" (3/3) ...
[2024-11-24 00:57:38,801 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem03_label22.c
[2024-11-24 00:57:38,819 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:57:38,822 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem03_label22.c that has 1 procedures, 302 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 00:57:38,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:57:38,923 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31cf075f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:57:38,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 00:57:38,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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)
[2024-11-24 00:57:38,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-24 00:57:38,954 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:38,955 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:38,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:38,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:38,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1133598669, now seen corresponding path program 1 times
[2024-11-24 00:57:38,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:38,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140281935]
[2024-11-24 00:57:38,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:38,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:40,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:57:40,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:40,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140281935]
[2024-11-24 00:57:40,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140281935] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:40,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:57:40,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:57:40,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340240792]
[2024-11-24 00:57:40,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:40,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:40,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:40,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:40,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:57:40,430 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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)
[2024-11-24 00:57:42,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:42,100 INFO L93 Difference]: Finished difference Result 857 states and 1498 transitions.
[2024-11-24 00:57:42,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:42,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 167
[2024-11-24 00:57:42,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:42,121 INFO L225 Difference]: With dead ends: 857
[2024-11-24 00:57:42,122 INFO L226 Difference]: Without dead ends: 462
[2024-11-24 00:57:42,126 INFO L434 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
[2024-11-24 00:57:42,132 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 121 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:42,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 187 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-24 00:57:42,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states.
[2024-11-24 00:57:42,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 460.
[2024-11-24 00:57:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.5381263616557734) internal successors, (706), 459 states have internal predecessors, (706), 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)
[2024-11-24 00:57:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 706 transitions.
[2024-11-24 00:57:42,234 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 706 transitions. Word has length 167
[2024-11-24 00:57:42,235 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:42,235 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 706 transitions.
[2024-11-24 00:57:42,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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)
[2024-11-24 00:57:42,236 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 706 transitions.
[2024-11-24 00:57:42,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2024-11-24 00:57:42,240 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:42,240 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:42,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:57:42,241 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:42,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash 166120884, now seen corresponding path program 1 times
[2024-11-24 00:57:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:42,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197981895]
[2024-11-24 00:57:42,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:42,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:57:42,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:42,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197981895]
[2024-11-24 00:57:42,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197981895] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:42,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:57:42,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:57:42,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121857389]
[2024-11-24 00:57:42,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:42,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:42,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:42,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:42,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:57:42,628 INFO L87 Difference]: Start difference. First operand 460 states and 706 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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)
[2024-11-24 00:57:43,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:43,983 INFO L93 Difference]: Finished difference Result 1344 states and 2079 transitions.
[2024-11-24 00:57:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:43,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 175
[2024-11-24 00:57:43,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:43,988 INFO L225 Difference]: With dead ends: 1344
[2024-11-24 00:57:43,988 INFO L226 Difference]: Without dead ends: 886
[2024-11-24 00:57:43,989 INFO L434 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
[2024-11-24 00:57:43,990 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 247 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:43,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 92 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-24 00:57:43,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states.
[2024-11-24 00:57:44,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 870.
[2024-11-24 00:57:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 869 states have (on average 1.5120828538550057) internal successors, (1314), 869 states have internal predecessors, (1314), 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)
[2024-11-24 00:57:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1314 transitions.
[2024-11-24 00:57:44,032 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1314 transitions. Word has length 175
[2024-11-24 00:57:44,033 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:44,033 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1314 transitions.
[2024-11-24 00:57:44,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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)
[2024-11-24 00:57:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1314 transitions.
[2024-11-24 00:57:44,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188
[2024-11-24 00:57:44,038 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:44,039 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:44,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 00:57:44,039 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:44,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:44,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2000740269, now seen corresponding path program 1 times
[2024-11-24 00:57:44,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:44,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190597780]
[2024-11-24 00:57:44,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:44,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:57:44,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:44,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190597780]
[2024-11-24 00:57:44,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190597780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:44,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:57:44,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:57:44,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540581640]
[2024-11-24 00:57:44,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:44,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:44,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:44,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:44,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:57:44,665 INFO L87 Difference]: Start difference. First operand 870 states and 1314 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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)
[2024-11-24 00:57:45,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:45,939 INFO L93 Difference]: Finished difference Result 2554 states and 3869 transitions.
[2024-11-24 00:57:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:45,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 187
[2024-11-24 00:57:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:45,947 INFO L225 Difference]: With dead ends: 2554
[2024-11-24 00:57:45,947 INFO L226 Difference]: Without dead ends: 1686
[2024-11-24 00:57:45,948 INFO L434 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
[2024-11-24 00:57:45,949 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 233 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:45,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 416 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-24 00:57:45,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states.
[2024-11-24 00:57:45,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1684.
[2024-11-24 00:57:45,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.3368983957219251) internal successors, (2250), 1683 states have internal predecessors, (2250), 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)
[2024-11-24 00:57:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2250 transitions.
[2024-11-24 00:57:46,005 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2250 transitions. Word has length 187
[2024-11-24 00:57:46,005 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:46,006 INFO L471 AbstractCegarLoop]: Abstraction has 1684 states and 2250 transitions.
[2024-11-24 00:57:46,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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)
[2024-11-24 00:57:46,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2250 transitions.
[2024-11-24 00:57:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2024-11-24 00:57:46,016 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:46,016 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:46,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 00:57:46,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:46,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:46,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1982576624, now seen corresponding path program 1 times
[2024-11-24 00:57:46,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:46,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98839115]
[2024-11-24 00:57:46,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:46,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:57:46,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:46,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98839115]
[2024-11-24 00:57:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98839115] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:46,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:57:46,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:57:46,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755007537]
[2024-11-24 00:57:46,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:46,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:46,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:46,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:46,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:57:46,365 INFO L87 Difference]: Start difference. First operand 1684 states and 2250 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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)
[2024-11-24 00:57:47,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:47,638 INFO L93 Difference]: Finished difference Result 5005 states and 6690 transitions.
[2024-11-24 00:57:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:47,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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 190
[2024-11-24 00:57:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:47,655 INFO L225 Difference]: With dead ends: 5005
[2024-11-24 00:57:47,655 INFO L226 Difference]: Without dead ends: 3323
[2024-11-24 00:57:47,658 INFO L434 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
[2024-11-24 00:57:47,659 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 241 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:47,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 174 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-24 00:57:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states.
[2024-11-24 00:57:47,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3320.
[2024-11-24 00:57:47,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 1.2853269056944863) internal successors, (4266), 3319 states have internal predecessors, (4266), 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)
[2024-11-24 00:57:47,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4266 transitions.
[2024-11-24 00:57:47,771 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4266 transitions. Word has length 190
[2024-11-24 00:57:47,771 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:47,771 INFO L471 AbstractCegarLoop]: Abstraction has 3320 states and 4266 transitions.
[2024-11-24 00:57:47,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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)
[2024-11-24 00:57:47,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4266 transitions.
[2024-11-24 00:57:47,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203
[2024-11-24 00:57:47,780 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:47,781 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:47,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 00:57:47,782 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:47,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:47,783 INFO L85 PathProgramCache]: Analyzing trace with hash 326250757, now seen corresponding path program 1 times
[2024-11-24 00:57:47,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:47,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184471433]
[2024-11-24 00:57:47,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:47,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:48,393 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:57:48,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:48,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184471433]
[2024-11-24 00:57:48,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184471433] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:48,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:57:48,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:57:48,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917650998]
[2024-11-24 00:57:48,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:48,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:48,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:48,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:48,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:57:48,397 INFO L87 Difference]: Start difference. First operand 3320 states and 4266 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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)
[2024-11-24 00:57:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:49,719 INFO L93 Difference]: Finished difference Result 9900 states and 12723 transitions.
[2024-11-24 00:57:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 202
[2024-11-24 00:57:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:49,743 INFO L225 Difference]: With dead ends: 9900
[2024-11-24 00:57:49,744 INFO L226 Difference]: Without dead ends: 6582
[2024-11-24 00:57:49,748 INFO L434 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
[2024-11-24 00:57:49,749 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 202 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:49,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 418 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-24 00:57:49,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states.
[2024-11-24 00:57:49,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 6577.
[2024-11-24 00:57:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 6576 states have (on average 1.224756690997567) internal successors, (8054), 6576 states have internal predecessors, (8054), 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)
[2024-11-24 00:57:49,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 8054 transitions.
[2024-11-24 00:57:49,966 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 8054 transitions. Word has length 202
[2024-11-24 00:57:49,967 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:49,967 INFO L471 AbstractCegarLoop]: Abstraction has 6577 states and 8054 transitions.
[2024-11-24 00:57:49,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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)
[2024-11-24 00:57:49,967 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 8054 transitions.
[2024-11-24 00:57:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209
[2024-11-24 00:57:49,977 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:49,977 INFO L218 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:49,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 00:57:49,979 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:49,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:49,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1195043644, now seen corresponding path program 1 times
[2024-11-24 00:57:49,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:49,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560452607]
[2024-11-24 00:57:49,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:49,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:57:50,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:50,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560452607]
[2024-11-24 00:57:50,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560452607] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:50,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:57:50,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:57:50,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342738456]
[2024-11-24 00:57:50,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:50,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:50,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:50,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:50,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:57:50,432 INFO L87 Difference]: Start difference. First operand 6577 states and 8054 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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)
[2024-11-24 00:57:51,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:51,880 INFO L93 Difference]: Finished difference Result 16215 states and 19826 transitions.
[2024-11-24 00:57:51,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:51,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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 208
[2024-11-24 00:57:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:51,925 INFO L225 Difference]: With dead ends: 16215
[2024-11-24 00:57:51,926 INFO L226 Difference]: Without dead ends: 9640
[2024-11-24 00:57:51,938 INFO L434 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
[2024-11-24 00:57:51,940 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 203 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:51,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 155 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-24 00:57:51,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9640 states.
[2024-11-24 00:57:52,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9640 to 9638.
[2024-11-24 00:57:52,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9638 states, 9637 states have (on average 1.2039016291376985) internal successors, (11602), 9637 states have internal predecessors, (11602), 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)
[2024-11-24 00:57:52,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9638 states to 9638 states and 11602 transitions.
[2024-11-24 00:57:52,227 INFO L78 Accepts]: Start accepts. Automaton has 9638 states and 11602 transitions. Word has length 208
[2024-11-24 00:57:52,228 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:52,228 INFO L471 AbstractCegarLoop]: Abstraction has 9638 states and 11602 transitions.
[2024-11-24 00:57:52,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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)
[2024-11-24 00:57:52,229 INFO L276 IsEmpty]: Start isEmpty. Operand 9638 states and 11602 transitions.
[2024-11-24 00:57:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2024-11-24 00:57:52,245 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:52,246 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:52,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 00:57:52,246 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:52,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:52,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1486955153, now seen corresponding path program 1 times
[2024-11-24 00:57:52,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:52,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349481207]
[2024-11-24 00:57:52,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:52,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:57:53,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:53,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349481207]
[2024-11-24 00:57:53,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349481207] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:57:53,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754779171]
[2024-11-24 00:57:53,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:53,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:57:53,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:57:53,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:57:53,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 00:57:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:53,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-24 00:57:53,376 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:57:53,818 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:57:53,819 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:57:53,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754779171] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:53,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:57:53,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-24 00:57:53,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202470730]
[2024-11-24 00:57:53,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:53,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:53,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:53,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:53,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:57:53,821 INFO L87 Difference]: Start difference. First operand 9638 states and 11602 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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)
[2024-11-24 00:57:54,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:54,960 INFO L93 Difference]: Finished difference Result 19277 states and 23207 transitions.
[2024-11-24 00:57:54,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:54,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 215
[2024-11-24 00:57:54,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:54,994 INFO L225 Difference]: With dead ends: 19277
[2024-11-24 00:57:54,994 INFO L226 Difference]: Without dead ends: 9641
[2024-11-24 00:57:55,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:57:55,005 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 111 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:55,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 98 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-24 00:57:55,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9641 states.
[2024-11-24 00:57:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 9638.
[2024-11-24 00:57:55,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9638 states, 9637 states have (on average 1.1977793919269482) internal successors, (11543), 9637 states have internal predecessors, (11543), 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)
[2024-11-24 00:57:55,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9638 states to 9638 states and 11543 transitions.
[2024-11-24 00:57:55,194 INFO L78 Accepts]: Start accepts. Automaton has 9638 states and 11543 transitions. Word has length 215
[2024-11-24 00:57:55,195 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:55,195 INFO L471 AbstractCegarLoop]: Abstraction has 9638 states and 11543 transitions.
[2024-11-24 00:57:55,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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)
[2024-11-24 00:57:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 9638 states and 11543 transitions.
[2024-11-24 00:57:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249
[2024-11-24 00:57:55,211 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:55,212 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:55,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-24 00:57:55,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:57:55,413 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:55,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash -178927718, now seen corresponding path program 1 times
[2024-11-24 00:57:55,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:55,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881573645]
[2024-11-24 00:57:55,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:55,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 92 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked.
[2024-11-24 00:57:56,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881573645]
[2024-11-24 00:57:56,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881573645] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:57:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511626258]
[2024-11-24 00:57:56,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:56,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:57:56,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:57:56,093 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:57:56,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 00:57:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:56,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:57:56,363 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:57:56,483 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2024-11-24 00:57:56,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:57:56,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511626258] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:56,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:57:56,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-11-24 00:57:56,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867829182]
[2024-11-24 00:57:56,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:56,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:56,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:56,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:56,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:57:56,485 INFO L87 Difference]: Start difference. First operand 9638 states and 11543 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 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)
[2024-11-24 00:57:57,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:57,136 INFO L93 Difference]: Finished difference Result 19238 states and 23035 transitions.
[2024-11-24 00:57:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:57,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 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 248
[2024-11-24 00:57:57,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:57,158 INFO L225 Difference]: With dead ends: 19238
[2024-11-24 00:57:57,158 INFO L226 Difference]: Without dead ends: 9602
[2024-11-24 00:57:57,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:57:57,167 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 308 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:57,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-24 00:57:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9602 states.
[2024-11-24 00:57:57,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9602 to 9602.
[2024-11-24 00:57:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9602 states, 9601 states have (on average 1.1872721591500885) internal successors, (11399), 9601 states have internal predecessors, (11399), 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)
[2024-11-24 00:57:57,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9602 states to 9602 states and 11399 transitions.
[2024-11-24 00:57:57,488 INFO L78 Accepts]: Start accepts. Automaton has 9602 states and 11399 transitions. Word has length 248
[2024-11-24 00:57:57,488 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:57,488 INFO L471 AbstractCegarLoop]: Abstraction has 9602 states and 11399 transitions.
[2024-11-24 00:57:57,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 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)
[2024-11-24 00:57:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 9602 states and 11399 transitions.
[2024-11-24 00:57:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270
[2024-11-24 00:57:57,509 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:57,510 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:57,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-24 00:57:57,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:57:57,715 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:57,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:57,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1189467201, now seen corresponding path program 1 times
[2024-11-24 00:57:57,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:57,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100093083]
[2024-11-24 00:57:57,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:57,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:57:58,237 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2024-11-24 00:57:58,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:57:58,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100093083]
[2024-11-24 00:57:58,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100093083] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:57:58,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:57:58,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:57:58,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482363072]
[2024-11-24 00:57:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:57:58,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:57:58,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:57:58,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:57:58,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:57:58,240 INFO L87 Difference]: Start difference. First operand 9602 states and 11399 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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)
[2024-11-24 00:57:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:57:59,492 INFO L93 Difference]: Finished difference Result 25330 states and 29968 transitions.
[2024-11-24 00:57:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:57:59,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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 269
[2024-11-24 00:57:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:57:59,531 INFO L225 Difference]: With dead ends: 25330
[2024-11-24 00:57:59,531 INFO L226 Difference]: Without dead ends: 15730
[2024-11-24 00:57:59,540 INFO L434 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
[2024-11-24 00:57:59,541 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 205 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:57:59,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 115 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-24 00:57:59,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15730 states.
[2024-11-24 00:57:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15730 to 15728.
[2024-11-24 00:57:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15728 states, 15727 states have (on average 1.1773383353468558) internal successors, (18516), 15727 states have internal predecessors, (18516), 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)
[2024-11-24 00:57:59,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15728 states to 15728 states and 18516 transitions.
[2024-11-24 00:57:59,869 INFO L78 Accepts]: Start accepts. Automaton has 15728 states and 18516 transitions. Word has length 269
[2024-11-24 00:57:59,869 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:57:59,869 INFO L471 AbstractCegarLoop]: Abstraction has 15728 states and 18516 transitions.
[2024-11-24 00:57:59,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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)
[2024-11-24 00:57:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 15728 states and 18516 transitions.
[2024-11-24 00:57:59,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277
[2024-11-24 00:57:59,899 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:57:59,900 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:57:59,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-24 00:57:59,900 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:57:59,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:57:59,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1680499850, now seen corresponding path program 1 times
[2024-11-24 00:57:59,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:57:59,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473948044]
[2024-11-24 00:57:59,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:57:59,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:57:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 68 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2024-11-24 00:58:00,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:00,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473948044]
[2024-11-24 00:58:00,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473948044] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:58:00,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855826717]
[2024-11-24 00:58:00,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:00,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:58:00,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:58:00,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:58:00,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 00:58:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:00,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:58:00,735 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:58:00,898 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:58:00,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:58:00,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855826717] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:00,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:58:00,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-24 00:58:00,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8707965]
[2024-11-24 00:58:00,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:00,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:58:00,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:00,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:58:00,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:58:00,903 INFO L87 Difference]: Start difference. First operand 15728 states and 18516 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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)
[2024-11-24 00:58:02,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:02,137 INFO L93 Difference]: Finished difference Result 30838 states and 36191 transitions.
[2024-11-24 00:58:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:58:02,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 276
[2024-11-24 00:58:02,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:02,174 INFO L225 Difference]: With dead ends: 30838
[2024-11-24 00:58:02,174 INFO L226 Difference]: Without dead ends: 15112
[2024-11-24 00:58:02,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:58:02,188 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 177 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:02,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 336 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-24 00:58:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15112 states.
[2024-11-24 00:58:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15112 to 15106.
[2024-11-24 00:58:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15106 states, 15105 states have (on average 1.140946706388613) internal successors, (17234), 15105 states have internal predecessors, (17234), 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)
[2024-11-24 00:58:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15106 states to 15106 states and 17234 transitions.
[2024-11-24 00:58:02,497 INFO L78 Accepts]: Start accepts. Automaton has 15106 states and 17234 transitions. Word has length 276
[2024-11-24 00:58:02,497 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:02,497 INFO L471 AbstractCegarLoop]: Abstraction has 15106 states and 17234 transitions.
[2024-11-24 00:58:02,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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)
[2024-11-24 00:58:02,498 INFO L276 IsEmpty]: Start isEmpty. Operand 15106 states and 17234 transitions.
[2024-11-24 00:58:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277
[2024-11-24 00:58:02,522 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:02,522 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:58:02,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-24 00:58:02,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-24 00:58:02,723 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:02,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:02,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1655882943, now seen corresponding path program 1 times
[2024-11-24 00:58:02,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:02,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746120468]
[2024-11-24 00:58:02,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:02,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:03,479 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 94 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked.
[2024-11-24 00:58:03,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:03,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746120468]
[2024-11-24 00:58:03,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746120468] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:58:03,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552446046]
[2024-11-24 00:58:03,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:03,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:58:03,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:58:03,482 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:58:03,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-24 00:58:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:03,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-24 00:58:03,743 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:58:03,876 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:58:03,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:58:03,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552446046] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:03,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:58:03,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-24 00:58:03,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492304166]
[2024-11-24 00:58:03,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:03,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:58:03,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:03,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:58:03,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:58:03,878 INFO L87 Difference]: Start difference. First operand 15106 states and 17234 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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)
[2024-11-24 00:58:05,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:05,104 INFO L93 Difference]: Finished difference Result 35291 states and 40808 transitions.
[2024-11-24 00:58:05,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:58:05,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 276
[2024-11-24 00:58:05,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:05,151 INFO L225 Difference]: With dead ends: 35291
[2024-11-24 00:58:05,151 INFO L226 Difference]: Without dead ends: 20187
[2024-11-24 00:58:05,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:58:05,165 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 163 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:05,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 135 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-24 00:58:05,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20187 states.
[2024-11-24 00:58:05,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20187 to 19775.
[2024-11-24 00:58:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19775 states, 19774 states have (on average 1.1240517851724487) internal successors, (22227), 19774 states have internal predecessors, (22227), 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)
[2024-11-24 00:58:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19775 states to 19775 states and 22227 transitions.
[2024-11-24 00:58:05,527 INFO L78 Accepts]: Start accepts. Automaton has 19775 states and 22227 transitions. Word has length 276
[2024-11-24 00:58:05,527 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:05,527 INFO L471 AbstractCegarLoop]: Abstraction has 19775 states and 22227 transitions.
[2024-11-24 00:58:05,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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)
[2024-11-24 00:58:05,527 INFO L276 IsEmpty]: Start isEmpty. Operand 19775 states and 22227 transitions.
[2024-11-24 00:58:05,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301
[2024-11-24 00:58:05,611 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:05,612 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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, 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]
[2024-11-24 00:58:05,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-24 00:58:05,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:58:05,812 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:05,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:05,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1246965763, now seen corresponding path program 1 times
[2024-11-24 00:58:05,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:05,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159174297]
[2024-11-24 00:58:05,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:05,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:06,427 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:58:06,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:06,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159174297]
[2024-11-24 00:58:06,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159174297] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:06,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:58:06,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:58:06,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404521503]
[2024-11-24 00:58:06,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:06,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:58:06,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:06,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:58:06,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:58:06,430 INFO L87 Difference]: Start difference. First operand 19775 states and 22227 transitions. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 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)
[2024-11-24 00:58:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:07,844 INFO L93 Difference]: Finished difference Result 42390 states and 47516 transitions.
[2024-11-24 00:58:07,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:58:07,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 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 300
[2024-11-24 00:58:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:07,881 INFO L225 Difference]: With dead ends: 42390
[2024-11-24 00:58:07,882 INFO L226 Difference]: Without dead ends: 22617
[2024-11-24 00:58:07,894 INFO L434 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
[2024-11-24 00:58:07,895 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 289 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:07,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 172 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-24 00:58:07,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22617 states.
[2024-11-24 00:58:08,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22617 to 21399.
[2024-11-24 00:58:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21399 states, 21398 states have (on average 1.117020282269371) internal successors, (23902), 21398 states have internal predecessors, (23902), 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)
[2024-11-24 00:58:08,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21399 states to 21399 states and 23902 transitions.
[2024-11-24 00:58:08,269 INFO L78 Accepts]: Start accepts. Automaton has 21399 states and 23902 transitions. Word has length 300
[2024-11-24 00:58:08,269 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:08,270 INFO L471 AbstractCegarLoop]: Abstraction has 21399 states and 23902 transitions.
[2024-11-24 00:58:08,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 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)
[2024-11-24 00:58:08,270 INFO L276 IsEmpty]: Start isEmpty. Operand 21399 states and 23902 transitions.
[2024-11-24 00:58:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304
[2024-11-24 00:58:08,287 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:08,288 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:58:08,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-24 00:58:08,289 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:08,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash 646862978, now seen corresponding path program 1 times
[2024-11-24 00:58:08,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:08,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309350556]
[2024-11-24 00:58:08,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked.
[2024-11-24 00:58:08,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:08,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309350556]
[2024-11-24 00:58:08,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309350556] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:08,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:58:08,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:58:08,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522568999]
[2024-11-24 00:58:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:08,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:58:08,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:08,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:58:08,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:58:08,595 INFO L87 Difference]: Start difference. First operand 21399 states and 23902 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 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)
[2024-11-24 00:58:09,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:09,620 INFO L93 Difference]: Finished difference Result 51961 states and 58199 transitions.
[2024-11-24 00:58:09,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:58:09,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 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 303
[2024-11-24 00:58:09,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:09,660 INFO L225 Difference]: With dead ends: 51961
[2024-11-24 00:58:09,661 INFO L226 Difference]: Without dead ends: 30564
[2024-11-24 00:58:09,677 INFO L434 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
[2024-11-24 00:58:09,678 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 156 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:09,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 142 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-24 00:58:09,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30564 states.
[2024-11-24 00:58:10,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30564 to 25666.
[2024-11-24 00:58:10,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25666 states, 25665 states have (on average 1.1227742061172803) internal successors, (28816), 25665 states have internal predecessors, (28816), 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)
[2024-11-24 00:58:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25666 states to 25666 states and 28816 transitions.
[2024-11-24 00:58:10,105 INFO L78 Accepts]: Start accepts. Automaton has 25666 states and 28816 transitions. Word has length 303
[2024-11-24 00:58:10,106 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:10,106 INFO L471 AbstractCegarLoop]: Abstraction has 25666 states and 28816 transitions.
[2024-11-24 00:58:10,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 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)
[2024-11-24 00:58:10,106 INFO L276 IsEmpty]: Start isEmpty. Operand 25666 states and 28816 transitions.
[2024-11-24 00:58:10,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309
[2024-11-24 00:58:10,126 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:10,126 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:58:10,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-24 00:58:10,127 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:10,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:10,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1127420156, now seen corresponding path program 1 times
[2024-11-24 00:58:10,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:10,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608931178]
[2024-11-24 00:58:10,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:10,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked.
[2024-11-24 00:58:10,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:10,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608931178]
[2024-11-24 00:58:10,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608931178] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:58:10,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8254138]
[2024-11-24 00:58:10,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:10,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:58:10,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:58:10,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:58:10,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-24 00:58:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:10,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:58:10,999 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:58:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked.
[2024-11-24 00:58:11,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:58:11,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8254138] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:11,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:58:11,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-24 00:58:11,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792351777]
[2024-11-24 00:58:11,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:11,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:58:11,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:11,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:58:11,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:58:11,487 INFO L87 Difference]: Start difference. First operand 25666 states and 28816 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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)
[2024-11-24 00:58:12,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:12,569 INFO L93 Difference]: Finished difference Result 54801 states and 61516 transitions.
[2024-11-24 00:58:12,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:58:12,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 308
[2024-11-24 00:58:12,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:12,607 INFO L225 Difference]: With dead ends: 54801
[2024-11-24 00:58:12,608 INFO L226 Difference]: Without dead ends: 29137
[2024-11-24 00:58:12,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:58:12,628 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 65 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:12,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 376 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-24 00:58:12,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29137 states.
[2024-11-24 00:58:13,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29137 to 29113.
[2024-11-24 00:58:13,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29113 states, 29112 states have (on average 1.1144201703764771) internal successors, (32443), 29112 states have internal predecessors, (32443), 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)
[2024-11-24 00:58:13,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29113 states to 29113 states and 32443 transitions.
[2024-11-24 00:58:13,197 INFO L78 Accepts]: Start accepts. Automaton has 29113 states and 32443 transitions. Word has length 308
[2024-11-24 00:58:13,198 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:13,198 INFO L471 AbstractCegarLoop]: Abstraction has 29113 states and 32443 transitions.
[2024-11-24 00:58:13,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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)
[2024-11-24 00:58:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 29113 states and 32443 transitions.
[2024-11-24 00:58:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325
[2024-11-24 00:58:13,230 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:13,231 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:58:13,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-24 00:58:13,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-11-24 00:58:13,432 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:13,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:13,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1083274386, now seen corresponding path program 1 times
[2024-11-24 00:58:13,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:13,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604296167]
[2024-11-24 00:58:13,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:13,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:13,695 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:58:13,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:13,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604296167]
[2024-11-24 00:58:13,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604296167] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:13,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:58:13,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:58:13,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790955093]
[2024-11-24 00:58:13,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:13,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:58:13,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:13,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:58:13,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:58:13,697 INFO L87 Difference]: Start difference. First operand 29113 states and 32443 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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)
[2024-11-24 00:58:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:14,665 INFO L93 Difference]: Finished difference Result 54556 states and 60866 transitions.
[2024-11-24 00:58:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:58:14,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 324
[2024-11-24 00:58:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:14,697 INFO L225 Difference]: With dead ends: 54556
[2024-11-24 00:58:14,697 INFO L226 Difference]: Without dead ends: 25445
[2024-11-24 00:58:14,712 INFO L434 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
[2024-11-24 00:58:14,713 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 197 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:14,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 333 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-24 00:58:14,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25445 states.
[2024-11-24 00:58:15,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25445 to 24427.
[2024-11-24 00:58:15,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24427 states, 24426 states have (on average 1.0947760582985344) internal successors, (26741), 24426 states have internal predecessors, (26741), 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)
[2024-11-24 00:58:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24427 states to 24427 states and 26741 transitions.
[2024-11-24 00:58:15,110 INFO L78 Accepts]: Start accepts. Automaton has 24427 states and 26741 transitions. Word has length 324
[2024-11-24 00:58:15,110 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:15,110 INFO L471 AbstractCegarLoop]: Abstraction has 24427 states and 26741 transitions.
[2024-11-24 00:58:15,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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)
[2024-11-24 00:58:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 24427 states and 26741 transitions.
[2024-11-24 00:58:15,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2024-11-24 00:58:15,133 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:15,134 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:58:15,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-24 00:58:15,134 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:15,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:15,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1943868510, now seen corresponding path program 1 times
[2024-11-24 00:58:15,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:15,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856501274]
[2024-11-24 00:58:15,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:15,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked.
[2024-11-24 00:58:15,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:15,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856501274]
[2024-11-24 00:58:15,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856501274] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:15,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:58:15,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:58:15,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807321699]
[2024-11-24 00:58:15,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:15,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:58:15,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:15,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:58:15,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:58:15,728 INFO L87 Difference]: Start difference. First operand 24427 states and 26741 transitions. Second operand has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 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)
[2024-11-24 00:58:17,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:17,378 INFO L93 Difference]: Finished difference Result 54964 states and 60433 transitions.
[2024-11-24 00:58:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:58:17,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 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 330
[2024-11-24 00:58:17,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:17,402 INFO L225 Difference]: With dead ends: 54964
[2024-11-24 00:58:17,402 INFO L226 Difference]: Without dead ends: 30539
[2024-11-24 00:58:17,415 INFO L434 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
[2024-11-24 00:58:17,416 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 350 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:17,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 82 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-24 00:58:17,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30539 states.
[2024-11-24 00:58:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30539 to 28298.
[2024-11-24 00:58:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28298 states, 28297 states have (on average 1.099763225783652) internal successors, (31120), 28297 states have internal predecessors, (31120), 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)
[2024-11-24 00:58:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28298 states to 28298 states and 31120 transitions.
[2024-11-24 00:58:17,771 INFO L78 Accepts]: Start accepts. Automaton has 28298 states and 31120 transitions. Word has length 330
[2024-11-24 00:58:17,772 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:17,772 INFO L471 AbstractCegarLoop]: Abstraction has 28298 states and 31120 transitions.
[2024-11-24 00:58:17,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 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)
[2024-11-24 00:58:17,772 INFO L276 IsEmpty]: Start isEmpty. Operand 28298 states and 31120 transitions.
[2024-11-24 00:58:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-24 00:58:17,795 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:17,795 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:58:17,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-24 00:58:17,796 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:17,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:17,797 INFO L85 PathProgramCache]: Analyzing trace with hash -427811092, now seen corresponding path program 1 times
[2024-11-24 00:58:17,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:17,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932409598]
[2024-11-24 00:58:17,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:17,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 109 proven. 6 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked.
[2024-11-24 00:58:18,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:18,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932409598]
[2024-11-24 00:58:18,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932409598] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:58:18,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878992465]
[2024-11-24 00:58:18,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:18,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:58:18,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:58:18,367 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:58:18,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-24 00:58:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:18,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-24 00:58:18,644 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:58:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2024-11-24 00:58:18,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:58:18,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878992465] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:18,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:58:18,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-24 00:58:18,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764181167]
[2024-11-24 00:58:18,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:18,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:58:18,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:18,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:58:18,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:58:18,756 INFO L87 Difference]: Start difference. First operand 28298 states and 31120 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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)
[2024-11-24 00:58:19,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:19,988 INFO L93 Difference]: Finished difference Result 69623 states and 76776 transitions.
[2024-11-24 00:58:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:58:19,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 342
[2024-11-24 00:58:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:20,040 INFO L225 Difference]: With dead ends: 69623
[2024-11-24 00:58:20,040 INFO L226 Difference]: Without dead ends: 41327
[2024-11-24 00:58:20,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:58:20,057 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 194 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:20,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 101 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-24 00:58:20,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41327 states.
[2024-11-24 00:58:20,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41327 to 40913.
[2024-11-24 00:58:20,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40913 states, 40912 states have (on average 1.0940555338287055) internal successors, (44760), 40912 states have internal predecessors, (44760), 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)
[2024-11-24 00:58:20,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40913 states to 40913 states and 44760 transitions.
[2024-11-24 00:58:20,531 INFO L78 Accepts]: Start accepts. Automaton has 40913 states and 44760 transitions. Word has length 342
[2024-11-24 00:58:20,531 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:20,532 INFO L471 AbstractCegarLoop]: Abstraction has 40913 states and 44760 transitions.
[2024-11-24 00:58:20,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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)
[2024-11-24 00:58:20,532 INFO L276 IsEmpty]: Start isEmpty. Operand 40913 states and 44760 transitions.
[2024-11-24 00:58:20,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386
[2024-11-24 00:58:20,553 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:20,554 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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]
[2024-11-24 00:58:20,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-24 00:58:20,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-24 00:58:20,754 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:20,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:20,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1469765734, now seen corresponding path program 1 times
[2024-11-24 00:58:20,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:20,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883338365]
[2024-11-24 00:58:20,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:20,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:21,525 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:58:21,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:21,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883338365]
[2024-11-24 00:58:21,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883338365] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:21,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:58:21,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:58:21,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715284112]
[2024-11-24 00:58:21,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:21,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:58:21,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:21,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:58:21,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:58:21,529 INFO L87 Difference]: Start difference. First operand 40913 states and 44760 transitions. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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)
[2024-11-24 00:58:23,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:23,543 INFO L93 Difference]: Finished difference Result 82867 states and 90669 transitions.
[2024-11-24 00:58:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:58:23,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 385
[2024-11-24 00:58:23,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:23,588 INFO L225 Difference]: With dead ends: 82867
[2024-11-24 00:58:23,588 INFO L226 Difference]: Without dead ends: 39723
[2024-11-24 00:58:23,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:58:23,610 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 380 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:23,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 91 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-24 00:58:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39723 states.
[2024-11-24 00:58:24,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39723 to 33189.
[2024-11-24 00:58:24,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33189 states, 33188 states have (on average 1.064360612269495) internal successors, (35324), 33188 states have internal predecessors, (35324), 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)
[2024-11-24 00:58:24,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33189 states to 33189 states and 35324 transitions.
[2024-11-24 00:58:24,296 INFO L78 Accepts]: Start accepts. Automaton has 33189 states and 35324 transitions. Word has length 385
[2024-11-24 00:58:24,297 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:24,297 INFO L471 AbstractCegarLoop]: Abstraction has 33189 states and 35324 transitions.
[2024-11-24 00:58:24,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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)
[2024-11-24 00:58:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 33189 states and 35324 transitions.
[2024-11-24 00:58:24,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437
[2024-11-24 00:58:24,334 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:24,334 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 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, 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]
[2024-11-24 00:58:24,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-24 00:58:24,334 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:24,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:24,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1372203317, now seen corresponding path program 1 times
[2024-11-24 00:58:24,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:24,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328710199]
[2024-11-24 00:58:24,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:24,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 449 proven. 18 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked.
[2024-11-24 00:58:25,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:25,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328710199]
[2024-11-24 00:58:25,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328710199] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:58:25,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899313167]
[2024-11-24 00:58:25,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:25,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:58:25,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:58:25,471 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:58:25,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-24 00:58:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:25,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-24 00:58:25,865 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:58:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked.
[2024-11-24 00:58:26,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:58:26,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899313167] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:26,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:58:26,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6
[2024-11-24 00:58:26,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746926708]
[2024-11-24 00:58:26,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:26,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:58:26,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:26,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:58:26,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:58:26,237 INFO L87 Difference]: Start difference. First operand 33189 states and 35324 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 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)
[2024-11-24 00:58:26,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:26,853 INFO L93 Difference]: Finished difference Result 97306 states and 103571 transitions.
[2024-11-24 00:58:26,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:58:26,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 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 436
[2024-11-24 00:58:26,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:26,911 INFO L225 Difference]: With dead ends: 97306
[2024-11-24 00:58:26,911 INFO L226 Difference]: Without dead ends: 64119
[2024-11-24 00:58:26,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:58:26,935 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 166 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:26,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 484 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 00:58:26,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64119 states.
[2024-11-24 00:58:27,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64119 to 63098.
[2024-11-24 00:58:27,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63098 states, 63097 states have (on average 1.0639016118040476) internal successors, (67129), 63097 states have internal predecessors, (67129), 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)
[2024-11-24 00:58:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63098 states to 63098 states and 67129 transitions.
[2024-11-24 00:58:27,746 INFO L78 Accepts]: Start accepts. Automaton has 63098 states and 67129 transitions. Word has length 436
[2024-11-24 00:58:27,746 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:27,746 INFO L471 AbstractCegarLoop]: Abstraction has 63098 states and 67129 transitions.
[2024-11-24 00:58:27,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 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)
[2024-11-24 00:58:27,746 INFO L276 IsEmpty]: Start isEmpty. Operand 63098 states and 67129 transitions.
[2024-11-24 00:58:27,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486
[2024-11-24 00:58:27,774 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:58:27,774 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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]
[2024-11-24 00:58:27,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-24 00:58:27,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:58:27,975 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:58:27,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:58:27,975 INFO L85 PathProgramCache]: Analyzing trace with hash 104892774, now seen corresponding path program 1 times
[2024-11-24 00:58:27,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:58:27,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449660782]
[2024-11-24 00:58:27,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:58:27,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:58:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:58:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked.
[2024-11-24 00:58:28,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:58:28,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449660782]
[2024-11-24 00:58:28,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449660782] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:58:28,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:58:28,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:58:28,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114028341]
[2024-11-24 00:58:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:58:28,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:58:28,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:58:28,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:58:28,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:58:28,675 INFO L87 Difference]: Start difference. First operand 63098 states and 67129 transitions. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 3 states have internal predecessors, (396), 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)
[2024-11-24 00:58:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:58:30,244 INFO L93 Difference]: Finished difference Result 168916 states and 179814 transitions.
[2024-11-24 00:58:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:58:30,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 3 states have internal predecessors, (396), 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 485
[2024-11-24 00:58:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:58:30,246 INFO L225 Difference]: With dead ends: 168916
[2024-11-24 00:58:30,246 INFO L226 Difference]: Without dead ends: 0
[2024-11-24 00:58:30,291 INFO L434 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
[2024-11-24 00:58:30,291 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 287 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:58:30,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 438 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-24 00:58:30,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-24 00:58:30,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-24 00:58:30,292 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)
[2024-11-24 00:58:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-24 00:58:30,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 485
[2024-11-24 00:58:30,294 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:58:30,294 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-24 00:58:30,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 3 states have internal predecessors, (396), 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)
[2024-11-24 00:58:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-24 00:58:30,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-24 00:58:30,297 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-24 00:58:30,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-24 00:58:30,302 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:58:30,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-24 00:58:44,031 WARN L286 SmtUtils]: Spent 13.72s on a formula simplification. DAG size of input: 608 DAG size of output: 552 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)
[2024-11-24 00:58:53,389 WARN L286 SmtUtils]: Spent 9.35s on a formula simplification. DAG size of input: 552 DAG size of output: 83 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)
[2024-11-24 00:58:53,397 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 00:58:53,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:58:53 BoogieIcfgContainer
[2024-11-24 00:58:53,448 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 00:58:53,448 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 00:58:53,448 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 00:58:53,449 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 00:58:53,450 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:57:38" (3/4) ...
[2024-11-24 00:58:53,457 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 00:58:53,492 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-24 00:58:53,494 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-24 00:58:53,497 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-24 00:58:53,499 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-24 00:58:53,786 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 00:58:53,786 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 00:58:53,786 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 00:58:53,788 INFO L158 Benchmark]: Toolchain (without parser) took 79805.49ms. Allocated memory was 142.6MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 111.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB.
[2024-11-24 00:58:53,788 INFO L158 Benchmark]: CDTParser took 1.87ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:58:53,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1301.42ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 52.4MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
[2024-11-24 00:58:53,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 200.67ms. Allocated memory is still 142.6MB. Free memory was 52.4MB in the beginning and 102.1MB in the end (delta: -49.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB.
[2024-11-24 00:58:53,791 INFO L158 Benchmark]: Boogie Preprocessor took 221.56ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 90.3MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 00:58:53,792 INFO L158 Benchmark]: RCFGBuilder took 3079.82ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 90.3MB in the beginning and 118.9MB in the end (delta: -28.6MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB.
[2024-11-24 00:58:53,792 INFO L158 Benchmark]: TraceAbstraction took 74655.21ms. Allocated memory was 176.2MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 117.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB.
[2024-11-24 00:58:53,793 INFO L158 Benchmark]: Witness Printer took 338.12ms. Allocated memory is still 2.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 00:58:53,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.87ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1301.42ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 52.4MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 200.67ms. Allocated memory is still 142.6MB. Free memory was 52.4MB in the beginning and 102.1MB in the end (delta: -49.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 221.56ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 90.3MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* RCFGBuilder took 3079.82ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 90.3MB in the beginning and 118.9MB in the end (delta: -28.6MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 74655.21ms. Allocated memory was 176.2MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 117.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB.
* Witness Printer took 338.12ms. Allocated memory is still 2.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. 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: 1546]: 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, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.4s, OverallIterations: 20, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 26.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4295 SdHoareTripleChecker+Valid, 21.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4295 mSDsluCounter, 4376 SdHoareTripleChecker+Invalid, 18.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 848 mSDsCounter, 2477 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12447 IncrementalHoareTripleChecker+Invalid, 14924 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2477 mSolverCounterUnsat, 3528 mSDtfsCounter, 12447 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2151 GetRequests, 2112 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63098occurred in iteration=19, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 17821 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 7727 NumberOfCodeBlocks, 7727 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7700 ConstructedInterpolants, 0 QuantifiedInterpolants, 15299 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3920 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 27 InterpolantComputations, 20 PerfectInterpolantSequences, 5195/5249 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 1668]: Loop Invariant
Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a27 == 1)) || ((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a6 == 1)) && (a3 == 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0))) || (((((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a11 == 1)) && (a23 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((a26 == 1) && (a5 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0))) || ((((((a5 == 1) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0))) || (((((((a26 == 1) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a3 == 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 <= 0)) && (a3 == 0)) && (a6 <= 0))) || ((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (1 <= a3)) && (a16 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a16 == 1)) && (a11 == 1)) && (a6 == 1))) || ((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a11 == 1)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a11 <= 0)) && (a6 <= 0))) || ((((((a5 == 1) && (1 <= a3)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1))) || (((((a5 == 1) && (a26 <= 0)) && (a3 == 1)) && (a11 <= 0)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a27 == 1)) && (a3 == 0))) || (((((((a5 == 1) && (1 <= a3)) && (a16 == 1)) && (a26 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a3 == 0)) && (a6 <= 0))) || ((((((a5 == 1) && (1 <= a3)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1))) || ((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a3 == 1)) && (a6 <= 0))) || ((((((((a15 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a27 == 1)) && (a3 == 0))) || (((((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a23 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a11 == 1)) && (a12 <= 0)) && (a6 <= 0))) || (((((a26 == 1) && (a5 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a3 == 0))) || (((((((a5 == 1) && (a12 == 1)) && (1 <= a3)) && (a16 == 1)) && (a26 <= 0)) && (a6 == 1)) && (a11 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a3 == 0)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (1 <= a3)) && (a6 == 1)) && (a11 <= 0))) || (((((((a15 == 1) && (a5 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a16 == 1)) && (a11 == 1)) && (a27 == 1)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a16 == 1)) && (a6 == 1)) && (a11 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a11 == 1)) && (a23 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0))) || ((((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0))) || (((((((a5 == 1) && (1 <= a3)) && (a26 <= 0)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((a5 == 1) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (1 <= a3)) && (a16 == 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1))) || ((((((a5 == 1) && (1 <= a3)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0))) || ((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (1 <= a3)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a16 == 1)) && (a26 <= 0)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1))) || (((((a26 == 1) && (a5 == 1)) && (a3 == 1)) && (a11 <= 0)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (1 <= a3)) && (a26 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (1 <= a3)) && (a23 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (1 <= a3)) && (a16 == 1)) && (a26 <= 0)) && (a11 == 1)) && (a27 == 1)) && (a6 <= 0))) || ((((((a5 == 1) && (a12 == 1)) && (a16 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a3 == 0))) || (((((((a26 == 1) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a12 <= 0)) && (a3 == 0)) && (a6 <= 0))) || ((((((a5 == 1) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0))) || ((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a3 == 0))) || ((((((a5 == 1) && (1 <= a3)) && (a16 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1))) || (((((a5 == 1) && (a26 <= 0)) && (a11 <= 0)) && (a3 == 0)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (1 <= a3)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)))
RESULT: Ultimate proved your program to be correct!
[2024-11-24 00:58:53,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f4285a-da41-4707-a750-e001bae53d38/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE