./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label35.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_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/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_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label35.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/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_ad2bce63-579d-457b-8489-e46efa0c301b/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 27f3eb1553a4773d3ad948aa9e62c9fff0038ffd5b126838e211f7b13e5fc516
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 14:30:26,544 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 14:30:26,616 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 14:30:26,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 14:30:26,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 14:30:26,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 14:30:26,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 14:30:26,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 14:30:26,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 14:30:26,649 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 14:30:26,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 14:30:26,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 14:30:26,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 14:30:26,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 14:30:26,650 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 14:30:26,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 14:30:26,650 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 14:30:26,650 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 14:30:26,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 14:30:26,651 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 14:30:26,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 14:30:26,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 14:30:26,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 14:30:26,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 14:30:26,651 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 14:30:26,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 14:30:26,651 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 14:30:26,652 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 14:30:26,652 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 14:30:26,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 14:30:26,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:30:26,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 14:30:26,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:30:26,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 14:30:26,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 14:30:26,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:30:26,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 14:30:26,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:30:26,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 14:30:26,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 14:30:26,653 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 14:30:26,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 14:30:26,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 14:30:26,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 14:30:26,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 14:30:26,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 14:30:26,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 14:30:26,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 14:30:26,654 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_ad2bce63-579d-457b-8489-e46efa0c301b/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 -> 27f3eb1553a4773d3ad948aa9e62c9fff0038ffd5b126838e211f7b13e5fc516
[2024-12-02 14:30:26,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 14:30:26,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 14:30:26,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 14:30:26,927 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 14:30:26,927 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 14:30:26,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem14_label35.c
[2024-12-02 14:30:30,158 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/data/afa1a4863/0f710ff57d8c4416922870ac4d12bd3f/FLAG0870b1ed5
[2024-12-02 14:30:30,499 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 14:30:30,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/sv-benchmarks/c/eca-rers2012/Problem14_label35.c
[2024-12-02 14:30:30,516 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/data/afa1a4863/0f710ff57d8c4416922870ac4d12bd3f/FLAG0870b1ed5
[2024-12-02 14:30:30,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/data/afa1a4863/0f710ff57d8c4416922870ac4d12bd3f
[2024-12-02 14:30:30,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 14:30:30,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 14:30:30,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 14:30:30,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 14:30:30,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 14:30:30,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:30:30" (1/1) ...
[2024-12-02 14:30:30,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f4ec96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:30, skipping insertion in model container
[2024-12-02 14:30:30,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:30:30" (1/1) ...
[2024-12-02 14:30:30,579 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 14:30:30,757 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_ad2bce63-579d-457b-8489-e46efa0c301b/sv-benchmarks/c/eca-rers2012/Problem14_label35.c[4618,4631]
[2024-12-02 14:30:30,942 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:30:30,951 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 14:30:30,974 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_ad2bce63-579d-457b-8489-e46efa0c301b/sv-benchmarks/c/eca-rers2012/Problem14_label35.c[4618,4631]
[2024-12-02 14:30:31,064 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:30:31,077 INFO L204 MainTranslator]: Completed translation
[2024-12-02 14:30:31,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31 WrapperNode
[2024-12-02 14:30:31,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 14:30:31,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 14:30:31,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 14:30:31,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 14:30:31,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,165 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858
[2024-12-02 14:30:31,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 14:30:31,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 14:30:31,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 14:30:31,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 14:30:31,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,210 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 14:30:31,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,235 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 14:30:31,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 14:30:31,269 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 14:30:31,269 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 14:30:31,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (1/1) ...
[2024-12-02 14:30:31,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:30:31,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:30:31,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 14:30:31,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 14:30:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 14:30:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 14:30:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 14:30:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 14:30:31,409 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 14:30:31,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 14:30:32,725 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live.
[2024-12-02 14:30:32,725 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 14:30:32,742 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 14:30:32,742 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-12-02 14:30:32,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:30:32 BoogieIcfgContainer
[2024-12-02 14:30:32,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 14:30:32,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 14:30:32,746 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 14:30:32,752 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 14:30:32,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:30:30" (1/3) ...
[2024-12-02 14:30:32,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4e3c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:30:32, skipping insertion in model container
[2024-12-02 14:30:32,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:30:31" (2/3) ...
[2024-12-02 14:30:32,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4e3c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:30:32, skipping insertion in model container
[2024-12-02 14:30:32,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:30:32" (3/3) ...
[2024-12-02 14:30:32,754 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem14_label35.c
[2024-12-02 14:30:32,773 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 14:30:32,775 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem14_label35.c that has 1 procedures, 245 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 14:30:32,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 14:30:32,853 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;@11a80699, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 14:30:32,853 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 14:30:32,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 14:30:32,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2024-12-02 14:30:32,866 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:32,867 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]
[2024-12-02 14:30:32,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:32,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash 626000386, now seen corresponding path program 1 times
[2024-12-02 14:30:32,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:32,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115641060]
[2024-12-02 14:30:32,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:32,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:33,242 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 14:30:33,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:33,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115641060]
[2024-12-02 14:30:33,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115641060] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:33,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:33,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 14:30:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649457922]
[2024-12-02 14:30:33,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:33,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:33,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:33,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:33,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:30:33,282 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 14:30:34,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:34,600 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions.
[2024-12-02 14:30:34,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:34,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44
[2024-12-02 14:30:34,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:34,613 INFO L225 Difference]: With dead ends: 669
[2024-12-02 14:30:34,614 INFO L226 Difference]: Without dead ends: 360
[2024-12-02 14:30:34,618 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 14:30:34,621 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 162 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:34,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 77 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-12-02 14:30:34,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states.
[2024-12-02 14:30:34,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360.
[2024-12-02 14:30:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 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 14:30:34,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions.
[2024-12-02 14:30:34,685 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 44
[2024-12-02 14:30:34,685 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:34,685 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions.
[2024-12-02 14:30:34,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 14:30:34,686 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions.
[2024-12-02 14:30:34,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-12-02 14:30:34,689 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:34,690 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-12-02 14:30:34,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 14:30:34,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:34,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:34,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2110758792, now seen corresponding path program 1 times
[2024-12-02 14:30:34,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:34,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638063525]
[2024-12-02 14:30:34,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:34,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:30:34,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:34,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638063525]
[2024-12-02 14:30:34,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638063525] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:34,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:34,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 14:30:34,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928616744]
[2024-12-02 14:30:34,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:34,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:34,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:34,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:34,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:30:34,955 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 14:30:35,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:35,701 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions.
[2024-12-02 14:30:35,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:35,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109
[2024-12-02 14:30:35,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:35,707 INFO L225 Difference]: With dead ends: 1074
[2024-12-02 14:30:35,707 INFO L226 Difference]: Without dead ends: 716
[2024-12-02 14:30:35,709 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 14:30:35,710 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:35,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 89 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 14:30:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states.
[2024-12-02 14:30:35,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538.
[2024-12-02 14:30:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4934823091247673) internal successors, (802), 537 states have internal predecessors, (802), 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 14:30:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 802 transitions.
[2024-12-02 14:30:35,740 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 802 transitions. Word has length 109
[2024-12-02 14:30:35,741 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:35,741 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 802 transitions.
[2024-12-02 14:30:35,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 14:30:35,741 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 802 transitions.
[2024-12-02 14:30:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-12-02 14:30:35,744 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:35,744 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-12-02 14:30:35,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 14:30:35,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:35,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:35,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1344857515, now seen corresponding path program 1 times
[2024-12-02 14:30:35,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:35,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905217169]
[2024-12-02 14:30:35,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:35,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:30:36,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:36,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905217169]
[2024-12-02 14:30:36,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905217169] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:36,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:36,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:30:36,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925883513]
[2024-12-02 14:30:36,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:36,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:30:36,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:36,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:30:36,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:30:36,194 INFO L87 Difference]: Start difference. First operand 538 states and 802 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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 14:30:37,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:37,210 INFO L93 Difference]: Finished difference Result 1430 states and 2030 transitions.
[2024-12-02 14:30:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 14:30:37,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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 123
[2024-12-02 14:30:37,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:37,215 INFO L225 Difference]: With dead ends: 1430
[2024-12-02 14:30:37,215 INFO L226 Difference]: Without dead ends: 894
[2024-12-02 14:30:37,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 14:30:37,217 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 419 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:37,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 121 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 14:30:37,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states.
[2024-12-02 14:30:37,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894.
[2024-12-02 14:30:37,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 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 14:30:37,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions.
[2024-12-02 14:30:37,245 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 123
[2024-12-02 14:30:37,245 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:37,245 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions.
[2024-12-02 14:30:37,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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 14:30:37,246 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions.
[2024-12-02 14:30:37,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-12-02 14:30:37,249 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:37,250 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:37,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 14:30:37,250 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:37,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash -870347575, now seen corresponding path program 1 times
[2024-12-02 14:30:37,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:37,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990627001]
[2024-12-02 14:30:37,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:37,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-12-02 14:30:37,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:37,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990627001]
[2024-12-02 14:30:37,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990627001] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:37,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:37,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:30:37,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813928753]
[2024-12-02 14:30:37,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:37,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:30:37,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:37,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:30:37,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:30:37,686 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 14:30:38,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:38,580 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions.
[2024-12-02 14:30:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 14:30:38,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 203
[2024-12-02 14:30:38,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:38,585 INFO L225 Difference]: With dead ends: 1993
[2024-12-02 14:30:38,585 INFO L226 Difference]: Without dead ends: 1072
[2024-12-02 14:30:38,587 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 14:30:38,588 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 116 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:38,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 119 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 14:30:38,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states.
[2024-12-02 14:30:38,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072.
[2024-12-02 14:30:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 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 14:30:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions.
[2024-12-02 14:30:38,622 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 203
[2024-12-02 14:30:38,622 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:38,622 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions.
[2024-12-02 14:30:38,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 14:30:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions.
[2024-12-02 14:30:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2024-12-02 14:30:38,625 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:38,626 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:38,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 14:30:38,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:38,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:38,627 INFO L85 PathProgramCache]: Analyzing trace with hash -364145181, now seen corresponding path program 1 times
[2024-12-02 14:30:38,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:38,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236603018]
[2024-12-02 14:30:38,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:38,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:39,163 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 83 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:30:39,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:39,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236603018]
[2024-12-02 14:30:39,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236603018] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:30:39,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335943673]
[2024-12-02 14:30:39,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:39,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:39,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:30:39,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:30:39,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 14:30:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:39,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 14:30:39,306 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:30:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked.
[2024-12-02 14:30:39,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 14:30:39,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335943673] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:39,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 14:30:39,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5
[2024-12-02 14:30:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520471849]
[2024-12-02 14:30:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:39,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:39,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:39,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:39,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:30:39,620 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 14:30:40,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:40,261 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions.
[2024-12-02 14:30:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:40,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215
[2024-12-02 14:30:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:40,267 INFO L225 Difference]: With dead ends: 2320
[2024-12-02 14:30:40,267 INFO L226 Difference]: Without dead ends: 1250
[2024-12-02 14:30:40,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:30:40,269 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:40,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 47 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 14:30:40,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states.
[2024-12-02 14:30:40,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072.
[2024-12-02 14:30:40,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 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 14:30:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions.
[2024-12-02 14:30:40,299 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 215
[2024-12-02 14:30:40,299 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:40,299 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions.
[2024-12-02 14:30:40,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 14:30:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions.
[2024-12-02 14:30:40,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-12-02 14:30:40,302 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:40,303 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:40,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 14:30:40,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:40,504 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:40,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:40,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2035792484, now seen corresponding path program 1 times
[2024-12-02 14:30:40,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:40,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940636024]
[2024-12-02 14:30:40,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:40,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:30:40,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:40,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940636024]
[2024-12-02 14:30:40,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940636024] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:40,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:40,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:30:40,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737521939]
[2024-12-02 14:30:40,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:40,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:40,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:40,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:40,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:30:40,846 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 14:30:41,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:41,489 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions.
[2024-12-02 14:30:41,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:41,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 14:30:41,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:41,496 INFO L225 Difference]: With dead ends: 2854
[2024-12-02 14:30:41,496 INFO L226 Difference]: Without dead ends: 1784
[2024-12-02 14:30:41,498 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 14:30:41,498 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:41,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 76 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 14:30:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states.
[2024-12-02 14:30:41,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784.
[2024-12-02 14:30:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1289960740325296) internal successors, (2013), 1783 states have internal predecessors, (2013), 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 14:30:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2013 transitions.
[2024-12-02 14:30:41,543 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2013 transitions. Word has length 218
[2024-12-02 14:30:41,543 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:41,543 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2013 transitions.
[2024-12-02 14:30:41,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 14:30:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2013 transitions.
[2024-12-02 14:30:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336
[2024-12-02 14:30:41,549 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:41,549 INFO L218 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:41,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 14:30:41,549 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:41,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash -353119723, now seen corresponding path program 1 times
[2024-12-02 14:30:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305538995]
[2024-12-02 14:30:41,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:42,044 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked.
[2024-12-02 14:30:42,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:42,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305538995]
[2024-12-02 14:30:42,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305538995] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:42,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:42,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:30:42,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996749622]
[2024-12-02 14:30:42,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:42,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:30:42,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:42,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:30:42,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:30:42,046 INFO L87 Difference]: Start difference. First operand 1784 states and 2013 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 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 14:30:42,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:42,784 INFO L93 Difference]: Finished difference Result 3624 states and 4105 transitions.
[2024-12-02 14:30:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 14:30:42,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 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 335
[2024-12-02 14:30:42,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:42,792 INFO L225 Difference]: With dead ends: 3624
[2024-12-02 14:30:42,792 INFO L226 Difference]: Without dead ends: 1962
[2024-12-02 14:30:42,794 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 14:30:42,795 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:42,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 14:30:42,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states.
[2024-12-02 14:30:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784.
[2024-12-02 14:30:42,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.0846887268648346) internal successors, (1934), 1783 states have internal predecessors, (1934), 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 14:30:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1934 transitions.
[2024-12-02 14:30:42,844 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1934 transitions. Word has length 335
[2024-12-02 14:30:42,845 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:42,845 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 1934 transitions.
[2024-12-02 14:30:42,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 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 14:30:42,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1934 transitions.
[2024-12-02 14:30:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431
[2024-12-02 14:30:42,854 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:42,854 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:42,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 14:30:42,854 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:42,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:42,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1215802876, now seen corresponding path program 1 times
[2024-12-02 14:30:42,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:42,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492750382]
[2024-12-02 14:30:42,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:42,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2024-12-02 14:30:43,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:43,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492750382]
[2024-12-02 14:30:43,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492750382] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:43,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:43,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:30:43,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670283016]
[2024-12-02 14:30:43,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:43,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:43,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:43,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:43,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:30:43,446 INFO L87 Difference]: Start difference. First operand 1784 states and 1934 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 14:30:44,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:44,018 INFO L93 Difference]: Finished difference Result 4278 states and 4675 transitions.
[2024-12-02 14:30:44,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:44,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 430
[2024-12-02 14:30:44,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:44,028 INFO L225 Difference]: With dead ends: 4278
[2024-12-02 14:30:44,028 INFO L226 Difference]: Without dead ends: 2674
[2024-12-02 14:30:44,030 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 14:30:44,031 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:44,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 14:30:44,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states.
[2024-12-02 14:30:44,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140.
[2024-12-02 14:30:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.071996259934549) internal successors, (2293), 2139 states have internal predecessors, (2293), 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 14:30:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2293 transitions.
[2024-12-02 14:30:44,090 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2293 transitions. Word has length 430
[2024-12-02 14:30:44,091 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:44,091 INFO L471 AbstractCegarLoop]: Abstraction has 2140 states and 2293 transitions.
[2024-12-02 14:30:44,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 14:30:44,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2293 transitions.
[2024-12-02 14:30:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438
[2024-12-02 14:30:44,100 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:44,101 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:44,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 14:30:44,101 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:44,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:44,102 INFO L85 PathProgramCache]: Analyzing trace with hash 664174583, now seen corresponding path program 1 times
[2024-12-02 14:30:44,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:44,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258838632]
[2024-12-02 14:30:44,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:44,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2024-12-02 14:30:44,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:44,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258838632]
[2024-12-02 14:30:44,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258838632] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:44,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:44,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:30:44,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157782772]
[2024-12-02 14:30:44,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:44,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:44,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:44,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:44,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:30:44,568 INFO L87 Difference]: Start difference. First operand 2140 states and 2293 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 14:30:45,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:45,163 INFO L93 Difference]: Finished difference Result 4812 states and 5228 transitions.
[2024-12-02 14:30:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 437
[2024-12-02 14:30:45,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:45,172 INFO L225 Difference]: With dead ends: 4812
[2024-12-02 14:30:45,172 INFO L226 Difference]: Without dead ends: 2852
[2024-12-02 14:30:45,175 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 14:30:45,176 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:45,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 14:30:45,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states.
[2024-12-02 14:30:45,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852.
[2024-12-02 14:30:45,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0785689231848474) internal successors, (3075), 2851 states have internal predecessors, (3075), 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 14:30:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3075 transitions.
[2024-12-02 14:30:45,243 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3075 transitions. Word has length 437
[2024-12-02 14:30:45,244 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:45,244 INFO L471 AbstractCegarLoop]: Abstraction has 2852 states and 3075 transitions.
[2024-12-02 14:30:45,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 14:30:45,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3075 transitions.
[2024-12-02 14:30:45,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479
[2024-12-02 14:30:45,248 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:45,248 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:45,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 14:30:45,249 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:45,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1354502970, now seen corresponding path program 1 times
[2024-12-02 14:30:45,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169847650]
[2024-12-02 14:30:45,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:45,680 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2024-12-02 14:30:45,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:45,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169847650]
[2024-12-02 14:30:45,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169847650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:45,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:45,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:30:45,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966806636]
[2024-12-02 14:30:45,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:45,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:45,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:45,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:45,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:30:45,683 INFO L87 Difference]: Start difference. First operand 2852 states and 3075 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:30:46,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:46,275 INFO L93 Difference]: Finished difference Result 6592 states and 7212 transitions.
[2024-12-02 14:30:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:46,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 478
[2024-12-02 14:30:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:46,283 INFO L225 Difference]: With dead ends: 6592
[2024-12-02 14:30:46,283 INFO L226 Difference]: Without dead ends: 3920
[2024-12-02 14:30:46,285 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 14:30:46,286 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:46,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 52 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 14:30:46,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states.
[2024-12-02 14:30:46,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564.
[2024-12-02 14:30:46,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0783047993264103) internal successors, (3842), 3563 states have internal predecessors, (3842), 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 14:30:46,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3842 transitions.
[2024-12-02 14:30:46,336 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3842 transitions. Word has length 478
[2024-12-02 14:30:46,337 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:46,337 INFO L471 AbstractCegarLoop]: Abstraction has 3564 states and 3842 transitions.
[2024-12-02 14:30:46,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:30:46,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3842 transitions.
[2024-12-02 14:30:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624
[2024-12-02 14:30:46,341 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:46,341 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:46,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 14:30:46,341 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:46,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash 757235758, now seen corresponding path program 1 times
[2024-12-02 14:30:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:46,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582759459]
[2024-12-02 14:30:46,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:46,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:46,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 1079 proven. 104 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2024-12-02 14:30:46,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:46,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582759459]
[2024-12-02 14:30:46,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582759459] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:30:46,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696570404]
[2024-12-02 14:30:46,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:46,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:46,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:30:46,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:30:46,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 14:30:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:47,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 14:30:47,168 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:30:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked.
[2024-12-02 14:30:47,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 14:30:47,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696570404] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:47,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 14:30:47,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-12-02 14:30:47,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904105965]
[2024-12-02 14:30:47,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:47,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:47,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:47,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:47,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-12-02 14:30:47,304 INFO L87 Difference]: Start difference. First operand 3564 states and 3842 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 14:30:47,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:47,908 INFO L93 Difference]: Finished difference Result 8016 states and 8685 transitions.
[2024-12-02 14:30:47,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:47,909 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 623
[2024-12-02 14:30:47,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:47,918 INFO L225 Difference]: With dead ends: 8016
[2024-12-02 14:30:47,918 INFO L226 Difference]: Without dead ends: 4632
[2024-12-02 14:30:47,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 622 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-12-02 14:30:47,921 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 137 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:47,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 247 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 14:30:47,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states.
[2024-12-02 14:30:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454.
[2024-12-02 14:30:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.072086233999551) internal successors, (4774), 4453 states have internal predecessors, (4774), 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 14:30:47,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4774 transitions.
[2024-12-02 14:30:47,972 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4774 transitions. Word has length 623
[2024-12-02 14:30:47,973 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:47,973 INFO L471 AbstractCegarLoop]: Abstraction has 4454 states and 4774 transitions.
[2024-12-02 14:30:47,973 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 14:30:47,973 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4774 transitions.
[2024-12-02 14:30:47,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636
[2024-12-02 14:30:47,977 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:47,978 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:47,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 14:30:48,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:48,178 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:48,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:48,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2075532208, now seen corresponding path program 1 times
[2024-12-02 14:30:48,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:48,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663897901]
[2024-12-02 14:30:48,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:48,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 1134 proven. 104 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2024-12-02 14:30:48,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:48,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663897901]
[2024-12-02 14:30:48,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663897901] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:30:48,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948414497]
[2024-12-02 14:30:48,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:48,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:48,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:30:48,819 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:30:48,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 14:30:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:49,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 14:30:49,033 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:30:49,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked.
[2024-12-02 14:30:49,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 14:30:49,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948414497] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:49,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 14:30:49,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-12-02 14:30:49,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250970650]
[2024-12-02 14:30:49,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:49,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:49,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:49,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:49,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-12-02 14:30:49,118 INFO L87 Difference]: Start difference. First operand 4454 states and 4774 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 14:30:49,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:49,513 INFO L93 Difference]: Finished difference Result 5346 states and 5726 transitions.
[2024-12-02 14:30:49,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:49,514 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 635
[2024-12-02 14:30:49,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:49,529 INFO L225 Difference]: With dead ends: 5346
[2024-12-02 14:30:49,529 INFO L226 Difference]: Without dead ends: 5344
[2024-12-02 14:30:49,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-12-02 14:30:49,531 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 158 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:49,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 11 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 14:30:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states.
[2024-12-02 14:30:49,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4454.
[2024-12-02 14:30:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0718616662923872) internal successors, (4773), 4453 states have internal predecessors, (4773), 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 14:30:49,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4773 transitions.
[2024-12-02 14:30:49,600 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4773 transitions. Word has length 635
[2024-12-02 14:30:49,601 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:49,601 INFO L471 AbstractCegarLoop]: Abstraction has 4454 states and 4773 transitions.
[2024-12-02 14:30:49,602 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 14:30:49,602 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4773 transitions.
[2024-12-02 14:30:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644
[2024-12-02 14:30:49,609 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:49,609 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:49,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 14:30:49,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:49,810 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:49,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:49,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1804517820, now seen corresponding path program 1 times
[2024-12-02 14:30:49,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:49,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746147724]
[2024-12-02 14:30:49,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:49,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:50,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1626 backedges. 1166 proven. 104 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2024-12-02 14:30:50,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746147724]
[2024-12-02 14:30:50,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746147724] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:30:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905943044]
[2024-12-02 14:30:50,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:50,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:50,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:30:50,631 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:30:50,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 14:30:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:50,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 14:30:50,869 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:30:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1626 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 1375 trivial. 0 not checked.
[2024-12-02 14:30:50,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 14:30:50,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905943044] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:50,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 14:30:50,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-12-02 14:30:50,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212327589]
[2024-12-02 14:30:50,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:50,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:50,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:50,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:50,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-12-02 14:30:50,951 INFO L87 Difference]: Start difference. First operand 4454 states and 4773 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 14:30:51,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:51,494 INFO L93 Difference]: Finished difference Result 9974 states and 10725 transitions.
[2024-12-02 14:30:51,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:51,495 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 643
[2024-12-02 14:30:51,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:51,505 INFO L225 Difference]: With dead ends: 9974
[2024-12-02 14:30:51,505 INFO L226 Difference]: Without dead ends: 5700
[2024-12-02 14:30:51,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-12-02 14:30:51,508 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 141 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:51,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 49 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 14:30:51,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states.
[2024-12-02 14:30:51,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4988.
[2024-12-02 14:30:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0745939442550632) internal successors, (5359), 4987 states have internal predecessors, (5359), 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 14:30:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5359 transitions.
[2024-12-02 14:30:51,562 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5359 transitions. Word has length 643
[2024-12-02 14:30:51,563 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:51,563 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5359 transitions.
[2024-12-02 14:30:51,563 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 14:30:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5359 transitions.
[2024-12-02 14:30:51,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692
[2024-12-02 14:30:51,573 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 14:30:51,573 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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]
[2024-12-02 14:30:51,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 14:30:51,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:51,774 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:30:51,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:30:51,774 INFO L85 PathProgramCache]: Analyzing trace with hash 22524484, now seen corresponding path program 1 times
[2024-12-02 14:30:51,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:30:51,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712782664]
[2024-12-02 14:30:51,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:30:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 1238 proven. 104 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2024-12-02 14:30:52,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:52,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712782664]
[2024-12-02 14:30:52,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712782664] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:30:52,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496391797]
[2024-12-02 14:30:52,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:30:52,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:30:52,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:30:52,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:30:52,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 14:30:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:52,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 14:30:52,752 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:30:52,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked.
[2024-12-02 14:30:52,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 14:30:52,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496391797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:52,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 14:30:52,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-12-02 14:30:52,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806609730]
[2024-12-02 14:30:52,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:52,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:30:52,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:52,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:30:52,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-02 14:30:52,841 INFO L87 Difference]: Start difference. First operand 4988 states and 5359 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 14:30:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:30:53,343 INFO L93 Difference]: Finished difference Result 10684 states and 11570 transitions.
[2024-12-02 14:30:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 14:30:53,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 691
[2024-12-02 14:30:53,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:30:53,345 INFO L225 Difference]: With dead ends: 10684
[2024-12-02 14:30:53,345 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 14:30:53,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-02 14:30:53,350 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 140 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 14:30:53,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 205 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 14:30:53,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 14:30:53,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 14:30:53,351 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 14:30:53,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 14:30:53,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 691
[2024-12-02 14:30:53,351 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:30:53,351 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 14:30:53,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 14:30:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 14:30:53,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 14:30:53,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 14:30:53,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 14:30:53,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-12-02 14:30:53,559 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:30:53,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-02 14:30:54,154 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 14:30:54,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:30:54 BoogieIcfgContainer
[2024-12-02 14:30:54,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 14:30:54,170 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 14:30:54,170 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 14:30:54,170 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 14:30:54,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:30:32" (3/4) ...
[2024-12-02 14:30:54,173 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 14:30:54,191 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-12-02 14:30:54,192 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-02 14:30:54,193 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-12-02 14:30:54,194 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 14:30:54,363 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 14:30:54,363 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 14:30:54,363 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 14:30:54,364 INFO L158 Benchmark]: Toolchain (without parser) took 23828.66ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 116.3MB in the beginning and 296.8MB in the end (delta: -180.5MB). Peak memory consumption was 269.9MB. Max. memory is 16.1GB.
[2024-12-02 14:30:54,365 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 14:30:54,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.50ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 84.7MB in the end (delta: 31.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-12-02 14:30:54,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.14ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 75.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 14:30:54,365 INFO L158 Benchmark]: Boogie Preprocessor took 102.73ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 62.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 14:30:54,366 INFO L158 Benchmark]: RCFGBuilder took 1473.88ms. Allocated memory is still 142.6MB. Free memory was 62.9MB in the beginning and 64.5MB in the end (delta: -1.6MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB.
[2024-12-02 14:30:54,366 INFO L158 Benchmark]: TraceAbstraction took 21423.28ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 63.6MB in the beginning and 312.6MB in the end (delta: -248.9MB). Peak memory consumption was 206.5MB. Max. memory is 16.1GB.
[2024-12-02 14:30:54,366 INFO L158 Benchmark]: Witness Printer took 193.43ms. Allocated memory is still 595.6MB. Free memory was 312.6MB in the beginning and 296.8MB in the end (delta: 15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 14:30:54,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 541.50ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 84.7MB in the end (delta: 31.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 86.14ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 75.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 102.73ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 62.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 1473.88ms. Allocated memory is still 142.6MB. Free memory was 62.9MB in the beginning and 64.5MB in the end (delta: -1.6MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 21423.28ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 63.6MB in the beginning and 312.6MB in the end (delta: -248.9MB). Peak memory consumption was 206.5MB. Max. memory is 16.1GB.
* Witness Printer took 193.43ms. Allocated memory is still 595.6MB. Free memory was 312.6MB in the beginning and 296.8MB in the end (delta: 15.8MB). 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: 146]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.7s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2020 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2020 mSDsluCounter, 1557 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 940 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7247 IncrementalHoareTripleChecker+Invalid, 8187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 940 mSolverCounterUnsat, 1483 mSDtfsCounter, 7247 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2852 GetRequests, 2815 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4988occurred in iteration=13, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 3204 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 7991 NumberOfCodeBlocks, 7991 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7972 ConstructedInterpolants, 0 QuantifiedInterpolants, 32099 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3606 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 19 InterpolantComputations, 14 PerfectInterpolantSequences, 15686/16167 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: 890]: Loop Invariant
Derived loop invariant: (((((((7 <= a15) && (a24 == 1)) || ((9 <= a21) && (a24 == 1))) || (((a12 <= 80) && (a24 == 1)) && (0 <= ((long long) a12 + 42)))) || ((a24 == 1) && (a21 <= 6))) || ((((7 <= a15) && (a15 <= 8)) && (((long long) 49 + a12) <= 0)) && (10 <= a21))) || (((a15 <= 8) && (a21 <= 6)) && (((long long) 49 + a12) <= 0)))
RESULT: Ultimate proved your program to be correct!
[2024-12-02 14:30:54,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2bce63-579d-457b-8489-e46efa0c301b/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