./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label53.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label53.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1 --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 7127a319cf1cd9799cd1fae45aa7d7ff5ae81a2fc57d6618c5b4c58ba3671893
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 10:35:45,224 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 10:35:45,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 10:35:45,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 10:35:45,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 10:35:45,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 10:35:45,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 10:35:45,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 10:35:45,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 10:35:45,297 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 10:35:45,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 10:35:45,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 10:35:45,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 10:35:45,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 10:35:45,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 10:35:45,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 10:35:45,299 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 10:35:45,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 10:35:45,299 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 10:35:45,299 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 10:35:45,299 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 10:35:45,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:35:45,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:35:45,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:35:45,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:35:45,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 10:35:45,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:35:45,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:35:45,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:35:45,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:35:45,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 10:35:45,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 10:35:45,300 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 10:35:45,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 10:35:45,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 10:35:45,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 10:35:45,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 10:35:45,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 10:35:45,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 10:35:45,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 10:35:45,301 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_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1
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 -> 7127a319cf1cd9799cd1fae45aa7d7ff5ae81a2fc57d6618c5b4c58ba3671893
[2024-12-02 10:35:45,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 10:35:45,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 10:35:45,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 10:35:45,506 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 10:35:45,506 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 10:35:45,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem01_label53.c
[2024-12-02 10:35:48,191 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/data/098d8381a/c10c642b58f340c1b23c105a7369b5ee/FLAG4e0054d91
[2024-12-02 10:35:48,428 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 10:35:48,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/sv-benchmarks/c/eca-rers2012/Problem01_label53.c
[2024-12-02 10:35:48,440 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/data/098d8381a/c10c642b58f340c1b23c105a7369b5ee/FLAG4e0054d91
[2024-12-02 10:35:48,453 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/data/098d8381a/c10c642b58f340c1b23c105a7369b5ee
[2024-12-02 10:35:48,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 10:35:48,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 10:35:48,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 10:35:48,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 10:35:48,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 10:35:48,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a42a666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48, skipping insertion in model container
[2024-12-02 10:35:48,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,492 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 10:35:48,748 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_8d0d330e-c50b-498e-8ff5-65676879c120/sv-benchmarks/c/eca-rers2012/Problem01_label53.c[19724,19737]
[2024-12-02 10:35:48,769 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:35:48,778 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 10:35:48,849 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_8d0d330e-c50b-498e-8ff5-65676879c120/sv-benchmarks/c/eca-rers2012/Problem01_label53.c[19724,19737]
[2024-12-02 10:35:48,858 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:35:48,870 INFO L204 MainTranslator]: Completed translation
[2024-12-02 10:35:48,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48 WrapperNode
[2024-12-02 10:35:48,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 10:35:48,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 10:35:48,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 10:35:48,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 10:35:48,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,936 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657
[2024-12-02 10:35:48,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 10:35:48,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 10:35:48,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 10:35:48,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 10:35:48,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,971 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].
[2024-12-02 10:35:48,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,988 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:48,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:49,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:49,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:49,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 10:35:49,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 10:35:49,012 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 10:35:49,012 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 10:35:49,013 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (1/1) ...
[2024-12-02 10:35:49,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:35:49,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:35:49,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 10:35:49,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 10:35:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 10:35:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 10:35:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 10:35:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 10:35:49,125 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 10:35:49,126 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 10:35:50,041 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live.
[2024-12-02 10:35:50,041 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 10:35:50,054 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 10:35:50,054 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-12-02 10:35:50,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:50 BoogieIcfgContainer
[2024-12-02 10:35:50,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 10:35:50,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 10:35:50,057 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 10:35:50,061 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 10:35:50,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:35:48" (1/3) ...
[2024-12-02 10:35:50,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5f6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:50, skipping insertion in model container
[2024-12-02 10:35:50,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:48" (2/3) ...
[2024-12-02 10:35:50,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5f6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:50, skipping insertion in model container
[2024-12-02 10:35:50,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:50" (3/3) ...
[2024-12-02 10:35:50,063 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c
[2024-12-02 10:35:50,076 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 10:35:50,078 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem01_label53.c that has 1 procedures, 198 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 10:35:50,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 10:35:50,142 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;@1dbbcda4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 10:35:50,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 10:35:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:35:50,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-12-02 10:35:50,155 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:50,156 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]
[2024-12-02 10:35:50,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:50,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:50,162 INFO L85 PathProgramCache]: Analyzing trace with hash -744791785, now seen corresponding path program 1 times
[2024-12-02 10:35:50,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:50,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536676562]
[2024-12-02 10:35:50,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 10:35:50,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:50,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536676562]
[2024-12-02 10:35:50,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536676562] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:50,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:50,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:35:50,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465944113]
[2024-12-02 10:35:50,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:50,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:50,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:50,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:50,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:50,700 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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)
[2024-12-02 10:35:51,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:51,460 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions.
[2024-12-02 10:35:51,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:51,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 114
[2024-12-02 10:35:51,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:51,472 INFO L225 Difference]: With dead ends: 528
[2024-12-02 10:35:51,473 INFO L226 Difference]: Without dead ends: 266
[2024-12-02 10:35:51,476 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
[2024-12-02 10:35:51,479 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 58 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:51,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 84 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 10:35:51,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2024-12-02 10:35:51,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2024-12-02 10:35:51,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 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)
[2024-12-02 10:35:51,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions.
[2024-12-02 10:35:51,528 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 114
[2024-12-02 10:35:51,528 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:51,528 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions.
[2024-12-02 10:35:51,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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)
[2024-12-02 10:35:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions.
[2024-12-02 10:35:51,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-12-02 10:35:51,531 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:51,531 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-12-02 10:35:51,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 10:35:51,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:51,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:51,533 INFO L85 PathProgramCache]: Analyzing trace with hash 723440618, now seen corresponding path program 1 times
[2024-12-02 10:35:51,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:51,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746673969]
[2024-12-02 10:35:51,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 10:35:51,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:51,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746673969]
[2024-12-02 10:35:51,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746673969] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:51,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:51,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:35:51,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976677967]
[2024-12-02 10:35:51,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:51,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:51,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:51,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:51,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:51,700 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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)
[2024-12-02 10:35:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:52,110 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions.
[2024-12-02 10:35:52,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:52,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 120
[2024-12-02 10:35:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:52,112 INFO L225 Difference]: With dead ends: 792
[2024-12-02 10:35:52,112 INFO L226 Difference]: Without dead ends: 528
[2024-12-02 10:35:52,113 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
[2024-12-02 10:35:52,114 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 140 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:52,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 38 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 10:35:52,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states.
[2024-12-02 10:35:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528.
[2024-12-02 10:35:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3434535104364327) internal successors, (708), 527 states have internal predecessors, (708), 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)
[2024-12-02 10:35:52,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions.
[2024-12-02 10:35:52,135 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 120
[2024-12-02 10:35:52,136 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:52,136 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions.
[2024-12-02 10:35:52,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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)
[2024-12-02 10:35:52,136 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions.
[2024-12-02 10:35:52,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2024-12-02 10:35:52,138 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:52,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:35:52,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 10:35:52,139 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:52,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:52,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1077697797, now seen corresponding path program 1 times
[2024-12-02 10:35:52,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:52,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110434207]
[2024-12-02 10:35:52,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:52,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:52,292 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 10:35:52,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:52,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110434207]
[2024-12-02 10:35:52,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110434207] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:52,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:52,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:35:52,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205608591]
[2024-12-02 10:35:52,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:52,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:52,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:52,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:52,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:52,294 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:35:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:52,657 INFO L93 Difference]: Finished difference Result 1316 states and 1785 transitions.
[2024-12-02 10:35:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:52,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148
[2024-12-02 10:35:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:52,660 INFO L225 Difference]: With dead ends: 1316
[2024-12-02 10:35:52,661 INFO L226 Difference]: Without dead ends: 790
[2024-12-02 10:35:52,662 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
[2024-12-02 10:35:52,663 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 147 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:52,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 30 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 10:35:52,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states.
[2024-12-02 10:35:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659.
[2024-12-02 10:35:52,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3495440729483283) internal successors, (888), 658 states have internal predecessors, (888), 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)
[2024-12-02 10:35:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 888 transitions.
[2024-12-02 10:35:52,681 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 888 transitions. Word has length 148
[2024-12-02 10:35:52,682 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:52,682 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 888 transitions.
[2024-12-02 10:35:52,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:35:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 888 transitions.
[2024-12-02 10:35:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2024-12-02 10:35:52,684 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:52,684 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:35:52,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 10:35:52,685 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:52,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:52,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1462023345, now seen corresponding path program 1 times
[2024-12-02 10:35:52,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:52,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371990457]
[2024-12-02 10:35:52,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:52,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-12-02 10:35:52,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:52,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371990457]
[2024-12-02 10:35:52,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371990457] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:52,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:52,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:35:52,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617371580]
[2024-12-02 10:35:52,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:52,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:52,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:52,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:52,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:52,932 INFO L87 Difference]: Start difference. First operand 659 states and 888 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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)
[2024-12-02 10:35:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:53,293 INFO L93 Difference]: Finished difference Result 1316 states and 1774 transitions.
[2024-12-02 10:35:53,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:53,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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 152
[2024-12-02 10:35:53,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:53,296 INFO L225 Difference]: With dead ends: 1316
[2024-12-02 10:35:53,296 INFO L226 Difference]: Without dead ends: 659
[2024-12-02 10:35:53,297 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
[2024-12-02 10:35:53,298 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 132 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:53,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 62 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 10:35:53,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states.
[2024-12-02 10:35:53,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659.
[2024-12-02 10:35:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3404255319148937) internal successors, (882), 658 states have internal predecessors, (882), 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)
[2024-12-02 10:35:53,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 882 transitions.
[2024-12-02 10:35:53,316 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 882 transitions. Word has length 152
[2024-12-02 10:35:53,316 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:53,316 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 882 transitions.
[2024-12-02 10:35:53,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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)
[2024-12-02 10:35:53,317 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 882 transitions.
[2024-12-02 10:35:53,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2024-12-02 10:35:53,319 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:53,319 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-12-02 10:35:53,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 10:35:53,320 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:53,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:53,320 INFO L85 PathProgramCache]: Analyzing trace with hash 116586887, now seen corresponding path program 1 times
[2024-12-02 10:35:53,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:53,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853035314]
[2024-12-02 10:35:53,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:53,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-12-02 10:35:53,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:53,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853035314]
[2024-12-02 10:35:53,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853035314] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:53,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:53,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:35:53,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100216456]
[2024-12-02 10:35:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:53,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:53,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:53,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:53,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:53,526 INFO L87 Difference]: Start difference. First operand 659 states and 882 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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)
[2024-12-02 10:35:53,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:53,915 INFO L93 Difference]: Finished difference Result 1578 states and 2090 transitions.
[2024-12-02 10:35:53,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:53,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 156
[2024-12-02 10:35:53,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:53,919 INFO L225 Difference]: With dead ends: 1578
[2024-12-02 10:35:53,919 INFO L226 Difference]: Without dead ends: 921
[2024-12-02 10:35:53,920 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
[2024-12-02 10:35:53,920 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:53,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 54 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 10:35:53,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states.
[2024-12-02 10:35:53,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921.
[2024-12-02 10:35:53,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.2826086956521738) internal successors, (1180), 920 states have internal predecessors, (1180), 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)
[2024-12-02 10:35:53,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1180 transitions.
[2024-12-02 10:35:53,942 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1180 transitions. Word has length 156
[2024-12-02 10:35:53,942 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:53,942 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1180 transitions.
[2024-12-02 10:35:53,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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)
[2024-12-02 10:35:53,943 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1180 transitions.
[2024-12-02 10:35:53,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2024-12-02 10:35:53,945 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:53,945 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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]
[2024-12-02 10:35:53,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 10:35:53,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:53,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:53,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2060248731, now seen corresponding path program 1 times
[2024-12-02 10:35:53,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:53,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136526490]
[2024-12-02 10:35:53,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:53,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2024-12-02 10:35:54,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:54,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136526490]
[2024-12-02 10:35:54,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136526490] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:54,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:54,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 10:35:54,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574105047]
[2024-12-02 10:35:54,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:54,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:54,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:54,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:54,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:54,060 INFO L87 Difference]: Start difference. First operand 921 states and 1180 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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)
[2024-12-02 10:35:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:54,512 INFO L93 Difference]: Finished difference Result 2495 states and 3157 transitions.
[2024-12-02 10:35:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:54,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 165
[2024-12-02 10:35:54,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:54,515 INFO L225 Difference]: With dead ends: 2495
[2024-12-02 10:35:54,516 INFO L226 Difference]: Without dead ends: 1576
[2024-12-02 10:35:54,517 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
[2024-12-02 10:35:54,517 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 137 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:54,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 23 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 10:35:54,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states.
[2024-12-02 10:35:54,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1183.
[2024-12-02 10:35:54,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.260575296108291) internal successors, (1490), 1182 states have internal predecessors, (1490), 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)
[2024-12-02 10:35:54,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1490 transitions.
[2024-12-02 10:35:54,540 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1490 transitions. Word has length 165
[2024-12-02 10:35:54,540 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:54,540 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1490 transitions.
[2024-12-02 10:35:54,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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)
[2024-12-02 10:35:54,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1490 transitions.
[2024-12-02 10:35:54,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2024-12-02 10:35:54,542 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:54,543 INFO L218 NwaCegarLoop]: trace histogram [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, 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]
[2024-12-02 10:35:54,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 10:35:54,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:54,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:54,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1919667691, now seen corresponding path program 1 times
[2024-12-02 10:35:54,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:54,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973687912]
[2024-12-02 10:35:54,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:54,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:54,700 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2024-12-02 10:35:54,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:54,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973687912]
[2024-12-02 10:35:54,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973687912] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:54,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:54,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:35:54,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300114443]
[2024-12-02 10:35:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:54,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:54,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:54,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:54,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:54,702 INFO L87 Difference]: Start difference. First operand 1183 states and 1490 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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)
[2024-12-02 10:35:55,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:55,101 INFO L93 Difference]: Finished difference Result 2495 states and 3151 transitions.
[2024-12-02 10:35:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:55,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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 181
[2024-12-02 10:35:55,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:55,105 INFO L225 Difference]: With dead ends: 2495
[2024-12-02 10:35:55,105 INFO L226 Difference]: Without dead ends: 1314
[2024-12-02 10:35:55,106 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
[2024-12-02 10:35:55,107 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:55,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 62 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 10:35:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states.
[2024-12-02 10:35:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314.
[2024-12-02 10:35:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.2482863670982483) internal successors, (1639), 1313 states have internal predecessors, (1639), 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)
[2024-12-02 10:35:55,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1639 transitions.
[2024-12-02 10:35:55,130 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1639 transitions. Word has length 181
[2024-12-02 10:35:55,130 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:55,130 INFO L471 AbstractCegarLoop]: Abstraction has 1314 states and 1639 transitions.
[2024-12-02 10:35:55,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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)
[2024-12-02 10:35:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1639 transitions.
[2024-12-02 10:35:55,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198
[2024-12-02 10:35:55,133 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:55,133 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 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, 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]
[2024-12-02 10:35:55,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 10:35:55,133 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:55,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:55,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1512456725, now seen corresponding path program 1 times
[2024-12-02 10:35:55,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:55,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426941964]
[2024-12-02 10:35:55,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:55,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-12-02 10:35:55,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:55,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426941964]
[2024-12-02 10:35:55,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426941964] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:55,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:55,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 10:35:55,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252710065]
[2024-12-02 10:35:55,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:55,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 10:35:55,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:55,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 10:35:55,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 10:35:55,305 INFO L87 Difference]: Start difference. First operand 1314 states and 1639 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 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)
[2024-12-02 10:35:56,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:56,031 INFO L93 Difference]: Finished difference Result 3281 states and 4058 transitions.
[2024-12-02 10:35:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 10:35:56,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 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 197
[2024-12-02 10:35:56,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:56,036 INFO L225 Difference]: With dead ends: 3281
[2024-12-02 10:35:56,036 INFO L226 Difference]: Without dead ends: 1838
[2024-12-02 10:35:56,038 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
[2024-12-02 10:35:56,038 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 276 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:56,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 38 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 10:35:56,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states.
[2024-12-02 10:35:56,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838.
[2024-12-02 10:35:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1279259662493195) internal successors, (2072), 1837 states have internal predecessors, (2072), 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)
[2024-12-02 10:35:56,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2072 transitions.
[2024-12-02 10:35:56,072 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2072 transitions. Word has length 197
[2024-12-02 10:35:56,072 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:56,072 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2072 transitions.
[2024-12-02 10:35:56,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 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)
[2024-12-02 10:35:56,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2072 transitions.
[2024-12-02 10:35:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2024-12-02 10:35:56,077 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:56,077 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 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, 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]
[2024-12-02 10:35:56,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 10:35:56,077 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:56,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:56,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1697281560, now seen corresponding path program 1 times
[2024-12-02 10:35:56,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:56,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17733165]
[2024-12-02 10:35:56,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked.
[2024-12-02 10:35:56,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:56,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17733165]
[2024-12-02 10:35:56,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17733165] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:56,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:56,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 10:35:56,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178989902]
[2024-12-02 10:35:56,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:56,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 10:35:56,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:56,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 10:35:56,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 10:35:56,262 INFO L87 Difference]: Start difference. First operand 1838 states and 2072 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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)
[2024-12-02 10:35:56,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:56,868 INFO L93 Difference]: Finished difference Result 4067 states and 4576 transitions.
[2024-12-02 10:35:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 10:35:56,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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 214
[2024-12-02 10:35:56,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:56,874 INFO L225 Difference]: With dead ends: 4067
[2024-12-02 10:35:56,874 INFO L226 Difference]: Without dead ends: 2231
[2024-12-02 10:35:56,876 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
[2024-12-02 10:35:56,876 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 226 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:56,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 26 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 10:35:56,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states.
[2024-12-02 10:35:56,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838.
[2024-12-02 10:35:56,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1045182362547632) internal successors, (2029), 1837 states have internal predecessors, (2029), 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)
[2024-12-02 10:35:56,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2029 transitions.
[2024-12-02 10:35:56,907 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2029 transitions. Word has length 214
[2024-12-02 10:35:56,907 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:56,907 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2029 transitions.
[2024-12-02 10:35:56,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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)
[2024-12-02 10:35:56,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2029 transitions.
[2024-12-02 10:35:56,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-12-02 10:35:56,910 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:56,910 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, 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]
[2024-12-02 10:35:56,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 10:35:56,911 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:56,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:56,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1450718297, now seen corresponding path program 1 times
[2024-12-02 10:35:56,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:56,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691042533]
[2024-12-02 10:35:56,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:56,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:57,291 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 63 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 10:35:57,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:57,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691042533]
[2024-12-02 10:35:57,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691042533] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 10:35:57,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336829439]
[2024-12-02 10:35:57,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:57,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:35:57,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:35:57,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:35:57,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 10:35:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:57,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 10:35:57,427 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:35:57,692 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked.
[2024-12-02 10:35:57,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:35:57,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336829439] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:57,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 10:35:57,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-12-02 10:35:57,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990258970]
[2024-12-02 10:35:57,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:57,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:57,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:57,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:57,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-02 10:35:57,694 INFO L87 Difference]: Start difference. First operand 1838 states and 2029 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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)
[2024-12-02 10:35:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:58,070 INFO L93 Difference]: Finished difference Result 4067 states and 4483 transitions.
[2024-12-02 10:35:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 218
[2024-12-02 10:35:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:58,077 INFO L225 Difference]: With dead ends: 4067
[2024-12-02 10:35:58,077 INFO L226 Difference]: Without dead ends: 2231
[2024-12-02 10:35:58,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-02 10:35:58,080 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 23 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:58,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 168 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 10:35:58,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states.
[2024-12-02 10:35:58,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838.
[2024-12-02 10:35:58,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.0925421883505715) internal successors, (2007), 1837 states have internal predecessors, (2007), 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)
[2024-12-02 10:35:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2007 transitions.
[2024-12-02 10:35:58,119 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2007 transitions. Word has length 218
[2024-12-02 10:35:58,119 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:58,119 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2007 transitions.
[2024-12-02 10:35:58,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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)
[2024-12-02 10:35:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2007 transitions.
[2024-12-02 10:35:58,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246
[2024-12-02 10:35:58,124 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:58,124 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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]
[2024-12-02 10:35:58,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-12-02 10:35:58,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-12-02 10:35:58,325 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:58,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:58,326 INFO L85 PathProgramCache]: Analyzing trace with hash 333353000, now seen corresponding path program 1 times
[2024-12-02 10:35:58,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:58,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373533595]
[2024-12-02 10:35:58,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:58,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked.
[2024-12-02 10:35:58,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:58,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373533595]
[2024-12-02 10:35:58,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373533595] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:58,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:58,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 10:35:58,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53026217]
[2024-12-02 10:35:58,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:58,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 10:35:58,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:58,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 10:35:58,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 10:35:58,668 INFO L87 Difference]: Start difference. First operand 1838 states and 2007 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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)
[2024-12-02 10:35:59,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:59,176 INFO L93 Difference]: Finished difference Result 3412 states and 3735 transitions.
[2024-12-02 10:35:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 10:35:59,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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 245
[2024-12-02 10:35:59,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:59,179 INFO L225 Difference]: With dead ends: 3412
[2024-12-02 10:35:59,179 INFO L226 Difference]: Without dead ends: 1576
[2024-12-02 10:35:59,180 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
[2024-12-02 10:35:59,181 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 254 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:59,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 45 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 10:35:59,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states.
[2024-12-02 10:35:59,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576.
[2024-12-02 10:35:59,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.0844444444444445) internal successors, (1708), 1575 states have internal predecessors, (1708), 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)
[2024-12-02 10:35:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1708 transitions.
[2024-12-02 10:35:59,199 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1708 transitions. Word has length 245
[2024-12-02 10:35:59,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:59,199 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1708 transitions.
[2024-12-02 10:35:59,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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)
[2024-12-02 10:35:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1708 transitions.
[2024-12-02 10:35:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264
[2024-12-02 10:35:59,203 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:59,203 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-12-02 10:35:59,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 10:35:59,203 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:59,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:59,204 INFO L85 PathProgramCache]: Analyzing trace with hash 790776617, now seen corresponding path program 1 times
[2024-12-02 10:35:59,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:59,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021556736]
[2024-12-02 10:35:59,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:59,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked.
[2024-12-02 10:35:59,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:59,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021556736]
[2024-12-02 10:35:59,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021556736] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:59,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:59,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 10:35:59,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977061516]
[2024-12-02 10:35:59,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:59,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:59,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:59,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:59,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:59,338 INFO L87 Difference]: Start difference. First operand 1576 states and 1708 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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)
[2024-12-02 10:35:59,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:35:59,675 INFO L93 Difference]: Finished difference Result 3543 states and 3836 transitions.
[2024-12-02 10:35:59,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:35:59,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 263
[2024-12-02 10:35:59,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:35:59,679 INFO L225 Difference]: With dead ends: 3543
[2024-12-02 10:35:59,679 INFO L226 Difference]: Without dead ends: 1969
[2024-12-02 10:35:59,680 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
[2024-12-02 10:35:59,680 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 10:35:59,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 179 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 10:35:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states.
[2024-12-02 10:35:59,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707.
[2024-12-02 10:35:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.0814771395076201) internal successors, (1845), 1706 states have internal predecessors, (1845), 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)
[2024-12-02 10:35:59,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1845 transitions.
[2024-12-02 10:35:59,701 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1845 transitions. Word has length 263
[2024-12-02 10:35:59,701 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:35:59,701 INFO L471 AbstractCegarLoop]: Abstraction has 1707 states and 1845 transitions.
[2024-12-02 10:35:59,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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)
[2024-12-02 10:35:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1845 transitions.
[2024-12-02 10:35:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286
[2024-12-02 10:35:59,703 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:35:59,703 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:35:59,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 10:35:59,704 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:35:59,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:35:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash 607943410, now seen corresponding path program 1 times
[2024-12-02 10:35:59,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:35:59,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365954077]
[2024-12-02 10:35:59,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:35:59,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:35:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:35:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked.
[2024-12-02 10:35:59,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:35:59,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365954077]
[2024-12-02 10:35:59,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365954077] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:35:59,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:35:59,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 10:35:59,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536417396]
[2024-12-02 10:35:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:35:59,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:35:59,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:35:59,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:35:59,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:35:59,854 INFO L87 Difference]: Start difference. First operand 1707 states and 1845 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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)
[2024-12-02 10:36:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:36:00,132 INFO L93 Difference]: Finished difference Result 3803 states and 4096 transitions.
[2024-12-02 10:36:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:36:00,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 285
[2024-12-02 10:36:00,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:36:00,133 INFO L225 Difference]: With dead ends: 3803
[2024-12-02 10:36:00,133 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 10:36:00,135 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
[2024-12-02 10:36:00,135 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 26 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 10:36:00,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 169 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 10:36:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 10:36:00,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 10:36:00,136 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)
[2024-12-02 10:36:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 10:36:00,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 285
[2024-12-02 10:36:00,136 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:36:00,136 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 10:36:00,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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)
[2024-12-02 10:36:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 10:36:00,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 10:36:00,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 10:36:00,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 10:36:00,142 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:36:00,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-02 10:36:00,422 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 10:36:00,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:36:00 BoogieIcfgContainer
[2024-12-02 10:36:00,437 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 10:36:00,437 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 10:36:00,438 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 10:36:00,438 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 10:36:00,438 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:50" (3/4) ...
[2024-12-02 10:36:00,440 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 10:36:00,455 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-12-02 10:36:00,455 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-02 10:36:00,456 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-12-02 10:36:00,457 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 10:36:00,577 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 10:36:00,577 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 10:36:00,577 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 10:36:00,578 INFO L158 Benchmark]: Toolchain (without parser) took 12121.46ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 90.9MB in the beginning and 261.0MB in the end (delta: -170.1MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB.
[2024-12-02 10:36:00,578 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.7MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:36:00,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.83ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 63.8MB in the end (delta: 26.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 10:36:00,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.46ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 58.4MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:36:00,579 INFO L158 Benchmark]: Boogie Preprocessor took 74.09ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 53.7MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:36:00,579 INFO L158 Benchmark]: RCFGBuilder took 1042.81ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 77.9MB in the end (delta: -24.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
[2024-12-02 10:36:00,580 INFO L158 Benchmark]: TraceAbstraction took 10380.21ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 77.6MB in the beginning and 270.6MB in the end (delta: -192.9MB). Peak memory consumption was 181.4MB. Max. memory is 16.1GB.
[2024-12-02 10:36:00,580 INFO L158 Benchmark]: Witness Printer took 139.87ms. Allocated memory is still 310.4MB. Free memory was 270.6MB in the beginning and 261.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:36:00,582 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.7MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 412.83ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 63.8MB in the end (delta: 26.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 65.46ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 58.4MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 74.09ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 53.7MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 1042.81ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 77.9MB in the end (delta: -24.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 10380.21ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 77.6MB in the beginning and 270.6MB in the end (delta: -192.9MB). Peak memory consumption was 181.4MB. Max. memory is 16.1GB.
* Witness Printer took 139.87ms. Allocated memory is still 310.4MB. Free memory was 270.6MB in the beginning and 261.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 528]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 13, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1748 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1748 mSDsluCounter, 978 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 858 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5069 IncrementalHoareTripleChecker+Invalid, 5927 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 858 mSolverCounterUnsat, 895 mSDtfsCounter, 5069 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=8, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1572 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 2676 NumberOfCodeBlocks, 2676 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2662 ConstructedInterpolants, 0 QuantifiedInterpolants, 7879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 371 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 1872/1964 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: 593]: Loop Invariant
Derived loop invariant: ((((((((((((a16 == 6) && (a21 == 1)) && (a17 == 1)) && (15 <= a8)) || (((a21 == 1) && (a17 == 1)) && (a20 == 1))) || (((a8 <= 13) && (a17 == 1)) && (a16 <= 5))) || ((((5 == a16) && (a21 == 1)) && (a17 == 1)) && (15 <= a8))) || (((a8 <= 13) && (a17 <= 0)) && (a20 == 1))) || ((((a16 == 6) && (a17 <= 0)) && (a21 == 1)) && (15 <= a8))) || (((a17 <= 0) && (a21 == 1)) && (a16 <= 5))) || (((a17 <= 0) && (a21 == 1)) && (a20 == 1))) || ((((a21 == 1) && (a17 == 1)) && (a16 <= 4)) && (15 <= a8)))
RESULT: Ultimate proved your program to be correct!
[2024-12-02 10:36:00,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0d330e-c50b-498e-8ff5-65676879c120/bin/uautomizer-verify-84ZbGMXZE1/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