./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label35.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 527bcce2
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label35.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx --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 d3e3930727d0c60d79f1b553922b6ffa9dda0949b70cfe091b5b493dd5b1378e
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 22:17:48,480 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-21 22:17:48,554 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-21 22:17:48,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 22:17:48,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 22:17:48,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 22:17:48,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 22:17:48,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 22:17:48,591 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-21 22:17:48,592 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-21 22:17:48,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 22:17:48,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 22:17:48,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 22:17:48,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-21 22:17:48,595 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-21 22:17:48,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 22:17:48,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-21 22:17:48,596 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-21 22:17:48,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-21 22:17:48,597 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-21 22:17:48,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-21 22:17:48,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-21 22:17:48,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 22:17:48,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-21 22:17:48,603 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-21 22:17:48,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-21 22:17:48,603 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-21 22:17:48,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 22:17:48,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-21 22:17:48,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 22:17:48,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-21 22:17:48,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:17:48,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 22:17:48,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 22:17:48,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-21 22:17:48,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-21 22:17:48,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-21 22:17:48,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 22:17:48,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 22:17:48,630 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-21 22:17:48,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 22:17:48,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 22:17:48,632 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e3930727d0c60d79f1b553922b6ffa9dda0949b70cfe091b5b493dd5b1378e
[2023-11-21 22:17:48,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 22:17:48,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 22:17:48,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 22:17:48,969 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-21 22:17:48,969 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-21 22:17:48,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/eca-rers2012/Problem02_label35.c
[2023-11-21 22:17:52,104 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-21 22:17:52,499 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-21 22:17:52,503 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/sv-benchmarks/c/eca-rers2012/Problem02_label35.c
[2023-11-21 22:17:52,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/data/b4d2ef08e/7cabd6c70e454ebdbef134f42ffdfd73/FLAGde08c621f
[2023-11-21 22:17:52,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/data/b4d2ef08e/7cabd6c70e454ebdbef134f42ffdfd73
[2023-11-21 22:17:52,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 22:17:52,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 22:17:52,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 22:17:52,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 22:17:52,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 22:17:52,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:17:52" (1/1) ...
[2023-11-21 22:17:52,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f139592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:52, skipping insertion in model container
[2023-11-21 22:17:52,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:17:52" (1/1) ...
[2023-11-21 22:17:52,618 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-21 22:17:52,976 WARN L240 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_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/sv-benchmarks/c/eca-rers2012/Problem02_label35.c[16104,16117]
[2023-11-21 22:17:53,047 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:17:53,068 INFO L202 MainTranslator]: Completed pre-run
[2023-11-21 22:17:53,164 WARN L240 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_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/sv-benchmarks/c/eca-rers2012/Problem02_label35.c[16104,16117]
[2023-11-21 22:17:53,182 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:17:53,200 INFO L206 MainTranslator]: Completed translation
[2023-11-21 22:17:53,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53 WrapperNode
[2023-11-21 22:17:53,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 22:17:53,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-21 22:17:53,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-21 22:17:53,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-21 22:17:53,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,301 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669
[2023-11-21 22:17:53,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-21 22:17:53,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-21 22:17:53,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-21 22:17:53,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-21 22:17:53,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,321 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,343 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2]
[2023-11-21 22:17:53,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,415 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-21 22:17:53,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-21 22:17:53,439 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-21 22:17:53,439 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-21 22:17:53,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (1/1) ...
[2023-11-21 22:17:53,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:17:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 22:17:53,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-21 22:17:53,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-21 22:17:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-21 22:17:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-21 22:17:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-21 22:17:53,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-21 22:17:53,687 INFO L240 CfgBuilder]: Building ICFG
[2023-11-21 22:17:53,689 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-21 22:17:54,793 INFO L281 CfgBuilder]: Performing block encoding
[2023-11-21 22:17:55,203 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-21 22:17:55,207 INFO L308 CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-21 22:17:55,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:55 BoogieIcfgContainer
[2023-11-21 22:17:55,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-21 22:17:55,214 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-21 22:17:55,214 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-21 22:17:55,218 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-21 22:17:55,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:17:52" (1/3) ...
[2023-11-21 22:17:55,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcbec64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:17:55, skipping insertion in model container
[2023-11-21 22:17:55,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:53" (2/3) ...
[2023-11-21 22:17:55,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcbec64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:17:55, skipping insertion in model container
[2023-11-21 22:17:55,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:55" (3/3) ...
[2023-11-21 22:17:55,223 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label35.c
[2023-11-21 22:17:55,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-21 22:17:55,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-21 22:17:55,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-21 22:17:55,317 INFO L357 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, mHoare=true, 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;@427d8c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-21 22:17:55,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-21 22:17:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 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)
[2023-11-21 22:17:55,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2023-11-21 22:17:55,336 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:17:55,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:17:55,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:17:55,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:17:55,346 INFO L85 PathProgramCache]: Analyzing trace with hash 672069522, now seen corresponding path program 1 times
[2023-11-21 22:17:55,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:17:55,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885146861]
[2023-11-21 22:17:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:17:55,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:17:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:17:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:17:56,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:17:56,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885146861]
[2023-11-21 22:17:56,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885146861] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:17:56,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:17:56,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 22:17:56,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537359788]
[2023-11-21 22:17:56,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:17:56,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:17:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:17:56,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:17:56,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:17:56,074 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 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 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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)
[2023-11-21 22:17:56,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:17:56,599 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions.
[2023-11-21 22:17:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:17:56,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80
[2023-11-21 22:17:56,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:17:56,616 INFO L225 Difference]: With dead ends: 251
[2023-11-21 22:17:56,616 INFO L226 Difference]: Without dead ends: 163
[2023-11-21 22:17:56,620 INFO L412 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
[2023-11-21 22:17:56,624 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-11-21 22:17:56,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 11 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-11-21 22:17:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states.
[2023-11-21 22:17:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163.
[2023-11-21 22:17:56,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.9320987654320987) internal successors, (313), 162 states have internal predecessors, (313), 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)
[2023-11-21 22:17:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 313 transitions.
[2023-11-21 22:17:56,682 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 313 transitions. Word has length 80
[2023-11-21 22:17:56,685 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:17:56,686 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 313 transitions.
[2023-11-21 22:17:56,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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)
[2023-11-21 22:17:56,687 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 313 transitions.
[2023-11-21 22:17:56,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2023-11-21 22:17:56,693 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:17:56,694 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:17:56,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-21 22:17:56,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:17:56,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:17:56,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2025359400, now seen corresponding path program 1 times
[2023-11-21 22:17:56,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:17:56,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951509247]
[2023-11-21 22:17:56,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:17:56,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:17:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:17:57,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:17:57,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:17:57,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951509247]
[2023-11-21 22:17:57,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951509247] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:17:57,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:17:57,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 22:17:57,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483749085]
[2023-11-21 22:17:57,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:17:57,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:17:57,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:17:57,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:17:57,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:17:57,016 INFO L87 Difference]: Start difference. First operand 163 states and 313 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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)
[2023-11-21 22:17:57,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:17:57,473 INFO L93 Difference]: Finished difference Result 487 states and 937 transitions.
[2023-11-21 22:17:57,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:17:57,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 91
[2023-11-21 22:17:57,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:17:57,481 INFO L225 Difference]: With dead ends: 487
[2023-11-21 22:17:57,481 INFO L226 Difference]: Without dead ends: 325
[2023-11-21 22:17:57,484 INFO L412 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
[2023-11-21 22:17:57,486 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-21 22:17:57,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 20 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-21 22:17:57,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states.
[2023-11-21 22:17:57,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323.
[2023-11-21 22:17:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.84472049689441) internal successors, (594), 322 states have internal predecessors, (594), 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)
[2023-11-21 22:17:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 594 transitions.
[2023-11-21 22:17:57,555 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 594 transitions. Word has length 91
[2023-11-21 22:17:57,556 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:17:57,556 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 594 transitions.
[2023-11-21 22:17:57,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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)
[2023-11-21 22:17:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 594 transitions.
[2023-11-21 22:17:57,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2023-11-21 22:17:57,562 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:17:57,563 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:17:57,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-21 22:17:57,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:17:57,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:17:57,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1263756435, now seen corresponding path program 1 times
[2023-11-21 22:17:57,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:17:57,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843931349]
[2023-11-21 22:17:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:17:57,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:17:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:17:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-11-21 22:17:57,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:17:57,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843931349]
[2023-11-21 22:17:57,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843931349] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:17:57,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:17:57,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 22:17:57,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797999227]
[2023-11-21 22:17:57,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:17:57,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:17:57,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:17:57,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:17:57,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:17:57,893 INFO L87 Difference]: Start difference. First operand 323 states and 594 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:17:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:17:58,304 INFO L93 Difference]: Finished difference Result 885 states and 1638 transitions.
[2023-11-21 22:17:58,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:17:58,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95
[2023-11-21 22:17:58,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:17:58,308 INFO L225 Difference]: With dead ends: 885
[2023-11-21 22:17:58,309 INFO L226 Difference]: Without dead ends: 563
[2023-11-21 22:17:58,311 INFO L412 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
[2023-11-21 22:17:58,312 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-21 22:17:58,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 66 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-21 22:17:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states.
[2023-11-21 22:17:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 483.
[2023-11-21 22:17:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.616182572614108) internal successors, (779), 482 states have internal predecessors, (779), 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)
[2023-11-21 22:17:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 779 transitions.
[2023-11-21 22:17:58,335 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 779 transitions. Word has length 95
[2023-11-21 22:17:58,335 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:17:58,335 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 779 transitions.
[2023-11-21 22:17:58,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:17:58,336 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 779 transitions.
[2023-11-21 22:17:58,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2023-11-21 22:17:58,341 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:17:58,342 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:17:58,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-21 22:17:58,342 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:17:58,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:17:58,343 INFO L85 PathProgramCache]: Analyzing trace with hash -857328052, now seen corresponding path program 1 times
[2023-11-21 22:17:58,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:17:58,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099315870]
[2023-11-21 22:17:58,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:17:58,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:17:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:17:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-11-21 22:17:58,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:17:58,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099315870]
[2023-11-21 22:17:58,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099315870] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:17:58,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:17:58,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-21 22:17:58,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338796262]
[2023-11-21 22:17:58,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:17:58,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:17:58,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:17:58,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:17:58,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:17:58,544 INFO L87 Difference]: Start difference. First operand 483 states and 779 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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)
[2023-11-21 22:17:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:17:58,976 INFO L93 Difference]: Finished difference Result 1205 states and 2008 transitions.
[2023-11-21 22:17:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:17:58,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 100
[2023-11-21 22:17:58,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:17:58,982 INFO L225 Difference]: With dead ends: 1205
[2023-11-21 22:17:58,982 INFO L226 Difference]: Without dead ends: 723
[2023-11-21 22:17:58,984 INFO L412 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
[2023-11-21 22:17:58,995 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-21 22:17:58,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 139 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-21 22:17:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states.
[2023-11-21 22:17:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 643.
[2023-11-21 22:17:59,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.5093457943925233) internal successors, (969), 642 states have internal predecessors, (969), 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)
[2023-11-21 22:17:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 969 transitions.
[2023-11-21 22:17:59,023 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 969 transitions. Word has length 100
[2023-11-21 22:17:59,024 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:17:59,025 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 969 transitions.
[2023-11-21 22:17:59,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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)
[2023-11-21 22:17:59,025 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 969 transitions.
[2023-11-21 22:17:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2023-11-21 22:17:59,029 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:17:59,029 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:17:59,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-21 22:17:59,030 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:17:59,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:17:59,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1471124380, now seen corresponding path program 1 times
[2023-11-21 22:17:59,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:17:59,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211377803]
[2023-11-21 22:17:59,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:17:59,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:17:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:17:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-11-21 22:17:59,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:17:59,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211377803]
[2023-11-21 22:17:59,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211377803] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:17:59,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:17:59,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 22:17:59,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096345151]
[2023-11-21 22:17:59,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:17:59,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:17:59,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:17:59,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:17:59,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:17:59,170 INFO L87 Difference]: Start difference. First operand 643 states and 969 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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)
[2023-11-21 22:17:59,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:17:59,603 INFO L93 Difference]: Finished difference Result 1765 states and 2719 transitions.
[2023-11-21 22:17:59,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:17:59,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 101
[2023-11-21 22:17:59,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:17:59,611 INFO L225 Difference]: With dead ends: 1765
[2023-11-21 22:17:59,611 INFO L226 Difference]: Without dead ends: 1123
[2023-11-21 22:17:59,612 INFO L412 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
[2023-11-21 22:17:59,613 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 109 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-21 22:17:59,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 30 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-21 22:17:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states.
[2023-11-21 22:17:59,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 963.
[2023-11-21 22:17:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.4386694386694387) internal successors, (1384), 962 states have internal predecessors, (1384), 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)
[2023-11-21 22:17:59,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1384 transitions.
[2023-11-21 22:17:59,646 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1384 transitions. Word has length 101
[2023-11-21 22:17:59,647 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:17:59,647 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1384 transitions.
[2023-11-21 22:17:59,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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)
[2023-11-21 22:17:59,648 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1384 transitions.
[2023-11-21 22:17:59,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-11-21 22:17:59,652 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:17:59,652 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:17:59,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-21 22:17:59,652 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:17:59,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:17:59,653 INFO L85 PathProgramCache]: Analyzing trace with hash -87232422, now seen corresponding path program 1 times
[2023-11-21 22:17:59,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:17:59,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181228935]
[2023-11-21 22:17:59,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:17:59,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:17:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:17:59,873 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2023-11-21 22:17:59,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:17:59,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181228935]
[2023-11-21 22:17:59,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181228935] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:17:59,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:17:59,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-21 22:17:59,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979483981]
[2023-11-21 22:17:59,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:17:59,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:17:59,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:17:59,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:17:59,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:17:59,878 INFO L87 Difference]: Start difference. First operand 963 states and 1384 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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)
[2023-11-21 22:18:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:18:00,284 INFO L93 Difference]: Finished difference Result 2245 states and 3192 transitions.
[2023-11-21 22:18:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:18:00,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 135
[2023-11-21 22:18:00,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:18:00,294 INFO L225 Difference]: With dead ends: 2245
[2023-11-21 22:18:00,297 INFO L226 Difference]: Without dead ends: 1283
[2023-11-21 22:18:00,299 INFO L412 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
[2023-11-21 22:18:00,300 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 73 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-21 22:18:00,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 30 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-21 22:18:00,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states.
[2023-11-21 22:18:00,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283.
[2023-11-21 22:18:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1282 states have (on average 1.3525741029641185) internal successors, (1734), 1282 states have internal predecessors, (1734), 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)
[2023-11-21 22:18:00,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1734 transitions.
[2023-11-21 22:18:00,346 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1734 transitions. Word has length 135
[2023-11-21 22:18:00,353 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:18:00,353 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1734 transitions.
[2023-11-21 22:18:00,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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)
[2023-11-21 22:18:00,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1734 transitions.
[2023-11-21 22:18:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2023-11-21 22:18:00,357 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:18:00,357 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:18:00,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-21 22:18:00,358 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-21 22:18:00,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:18:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1290791260, now seen corresponding path program 1 times
[2023-11-21 22:18:00,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-21 22:18:00,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567866982]
[2023-11-21 22:18:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:18:00,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-21 22:18:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:18:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 64 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2023-11-21 22:18:00,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-21 22:18:00,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567866982]
[2023-11-21 22:18:00,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567866982] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-21 22:18:00,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006506020]
[2023-11-21 22:18:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:18:00,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-21 22:18:00,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 22:18:00,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-21 22:18:00,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-21 22:18:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:18:00,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-21 22:18:00,996 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:18:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2023-11-21 22:18:01,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:18:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006506020] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:18:01,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-21 22:18:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2023-11-21 22:18:01,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553385762]
[2023-11-21 22:18:01,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:18:01,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:18:01,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-21 22:18:01,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:18:01,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-21 22:18:01,156 INFO L87 Difference]: Start difference. First operand 1283 states and 1734 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 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)
[2023-11-21 22:18:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:18:01,553 INFO L93 Difference]: Finished difference Result 2883 states and 3966 transitions.
[2023-11-21 22:18:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:18:01,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 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 139
[2023-11-21 22:18:01,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:18:01,554 INFO L225 Difference]: With dead ends: 2883
[2023-11-21 22:18:01,555 INFO L226 Difference]: Without dead ends: 0
[2023-11-21 22:18:01,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-21 22:18:01,558 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-21 22:18:01,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 42 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-21 22:18:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-11-21 22:18:01,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-11-21 22:18:01,560 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)
[2023-11-21 22:18:01,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-21 22:18:01,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139
[2023-11-21 22:18:01,560 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:18:01,561 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-21 22:18:01,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 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)
[2023-11-21 22:18:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-11-21 22:18:01,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2023-11-21 22:18:01,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-21 22:18:01,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-21 22:18:01,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-21 22:18:01,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-11-21 22:18:01,860 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,860 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,860 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,861 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,861 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,861 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,861 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,861 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,861 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,862 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,862 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,862 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,862 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,862 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,862 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,863 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,863 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,863 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,863 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,863 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,863 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,864 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,864 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,864 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,864 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,864 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-11-21 22:18:01,865 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,865 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,865 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,865 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,865 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,865 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,866 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed.
[2023-11-21 22:18:01,866 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,866 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,866 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,866 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 464) no Hoare annotation was computed.
[2023-11-21 22:18:01,867 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed.
[2023-11-21 22:18:01,867 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,867 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,867 INFO L899 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed.
[2023-11-21 22:18:01,867 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,867 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,867 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,868 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,868 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,868 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,868 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,868 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,868 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,869 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,869 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,872 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,872 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,872 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,872 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,873 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,873 INFO L899 garLoopResultBuilder]: For program point L610(lines 610 627) no Hoare annotation was computed.
[2023-11-21 22:18:01,873 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,873 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,873 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,885 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,885 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,886 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,886 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,886 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse0 (<= 8 ~a17~0)) (.cse1 (= ~a28~0 10)) (.cse2 (not (= ~a25~0 1)))) (or (< ~a28~0 10) (and .cse0 .cse1) (and .cse0 (= ~a11~0 0) .cse2) (and .cse1 .cse2) (= ~a19~0 1)))
[2023-11-21 22:18:01,887 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,887 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,888 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,888 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,888 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,888 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,888 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed.
[2023-11-21 22:18:01,888 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,889 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,889 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,889 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-11-21 22:18:01,889 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,889 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,889 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,890 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 39 608) no Hoare annotation was computed.
[2023-11-21 22:18:01,890 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,890 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,890 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed.
[2023-11-21 22:18:01,893 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:18:01,896 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-21 22:18:01,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:18:01 BoogieIcfgContainer
[2023-11-21 22:18:01,916 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-21 22:18:01,916 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-21 22:18:01,916 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-21 22:18:01,917 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-21 22:18:01,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:55" (3/4) ...
[2023-11-21 22:18:01,920 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-21 22:18:01,945 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 128 nodes and edges
[2023-11-21 22:18:01,947 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2023-11-21 22:18:01,948 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2023-11-21 22:18:01,950 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-21 22:18:02,135 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/witness.graphml
[2023-11-21 22:18:02,136 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/witness.yml
[2023-11-21 22:18:02,136 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-21 22:18:02,137 INFO L158 Benchmark]: Toolchain (without parser) took 9589.96ms. Allocated memory was 178.3MB in the beginning and 268.4MB in the end (delta: 90.2MB). Free memory was 148.6MB in the beginning and 126.9MB in the end (delta: 21.7MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB.
[2023-11-21 22:18:02,137 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory was 101.1MB in the beginning and 100.9MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 22:18:02,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.60ms. Allocated memory is still 178.3MB. Free memory was 148.6MB in the beginning and 121.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2023-11-21 22:18:02,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.76ms. Allocated memory is still 178.3MB. Free memory was 121.4MB in the beginning and 115.9MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-21 22:18:02,139 INFO L158 Benchmark]: Boogie Preprocessor took 135.93ms. Allocated memory is still 178.3MB. Free memory was 115.9MB in the beginning and 110.0MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2023-11-21 22:18:02,139 INFO L158 Benchmark]: RCFGBuilder took 1770.74ms. Allocated memory was 178.3MB in the beginning and 222.3MB in the end (delta: 44.0MB). Free memory was 110.0MB in the beginning and 109.3MB in the end (delta: 665.4kB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB.
[2023-11-21 22:18:02,140 INFO L158 Benchmark]: TraceAbstraction took 6701.87ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 108.3MB in the beginning and 140.5MB in the end (delta: -32.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB.
[2023-11-21 22:18:02,140 INFO L158 Benchmark]: Witness Printer took 219.98ms. Allocated memory is still 268.4MB. Free memory was 140.5MB in the beginning and 126.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-21 22:18:02,142 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory was 101.1MB in the beginning and 100.9MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 652.60ms. Allocated memory is still 178.3MB. Free memory was 148.6MB in the beginning and 121.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 99.76ms. Allocated memory is still 178.3MB. Free memory was 121.4MB in the beginning and 115.9MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 135.93ms. Allocated memory is still 178.3MB. Free memory was 115.9MB in the beginning and 110.0MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* RCFGBuilder took 1770.74ms. Allocated memory was 178.3MB in the beginning and 222.3MB in the end (delta: 44.0MB). Free memory was 110.0MB in the beginning and 109.3MB in the end (delta: 665.4kB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 6701.87ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 108.3MB in the beginning and 140.5MB in the end (delta: -32.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB.
* Witness Printer took 219.98ms. Allocated memory is still 268.4MB. Free memory was 140.5MB in the beginning and 126.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. 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: 464]: 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, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 517 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 338 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 487 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1738 IncrementalHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 487 mSolverCounterUnsat, 311 mSDtfsCounter, 1738 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1283occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 322 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 21 NumberOfFragments, 33 HoareAnnotationTreeSize, 1 FomulaSimplifications, 298 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 880 NumberOfCodeBlocks, 880 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 872 ConstructedInterpolants, 0 QuantifiedInterpolants, 1774 SizeOfPredicates, 0 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 360/368 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 616]: Loop Invariant
Derived loop invariant: (((((a28 < 10) || ((8 <= a17) && (a28 == 10))) || (((8 <= a17) && (a11 == 0)) && !((a25 == 1)))) || ((a28 == 10) && !((a25 == 1)))) || (a19 == 1))
RESULT: Ultimate proved your program to be correct!
[2023-11-21 22:18:02,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab4b3e-bcbc-498a-98eb-bcb1ee2f4aa0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE