/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label19.c


--------------------------------------------------------------------------------


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 21:58:29,262 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 21:58:29,264 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 21:58:29,313 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 21:58:29,314 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 21:58:29,316 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 21:58:29,317 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2022-01-10 21:58:29,322 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 21:58:29,323 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 21:58:29,324 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 21:58:29,324 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 21:58:29,325 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 21:58:29,326 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 21:58:29,327 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 21:58:29,329 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 21:58:29,330 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 21:58:29,331 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 21:58:29,332 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 21:58:29,333 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 21:58:29,335 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 21:58:29,335 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 21:58:29,335 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 21:58:29,336 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 21:58:29,336 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 21:58:29,337 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 21:58:29,337 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 21:58:29,338 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 21:58:29,338 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 21:58:29,339 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 21:58:29,340 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 21:58:29,340 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 21:58:29,341 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2022-01-10 21:58:29,341 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-10 21:58:29,342 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 21:58:29,345 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf
[2022-01-10 21:58:29,361 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 21:58:29,361 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 21:58:29,361 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 21:58:29,361 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 21:58:29,362 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 21:58:29,362 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 21:58:29,363 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 21:58:29,363 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 21:58:29,363 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 21:58:29,363 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 21:58:29,363 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 21:58:29,363 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 21:58:29,364 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 21:58:29,364 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 21:58:29,364 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 21:58:29,364 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 21:58:29,364 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 21:58:29,364 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 21:58:29,365 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 21:58:29,365 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 21:58:29,365 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 21:58:29,365 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 21:58:29,365 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 21:58:29,365 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 21:58:29,365 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 21:58:29,366 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 21:58:29,366 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 21:58:29,366 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 21:58:29,366 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 21:58:29,366 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 21:58:29,366 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 21:58:29,366 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 21:58:29,367 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 21:58:29,367 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_NONE
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 21:58:29,542 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 21:58:29,560 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 21:58:29,562 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 21:58:29,563 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 21:58:29,565 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 21:58:29,566 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label19.c
[2022-01-10 21:58:29,630 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23c3b64f/5d04d78a4c4544c098e6cfd14670a7dc/FLAG15e516dc0
[2022-01-10 21:58:30,416 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 21:58:30,417 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label19.c
[2022-01-10 21:58:30,462 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23c3b64f/5d04d78a4c4544c098e6cfd14670a7dc/FLAG15e516dc0
[2022-01-10 21:58:30,639 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23c3b64f/5d04d78a4c4544c098e6cfd14670a7dc
[2022-01-10 21:58:30,643 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 21:58:30,645 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 21:58:30,647 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 21:58:30,647 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 21:58:30,653 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 21:58:30,653 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:58:30" (1/1) ...
[2022-01-10 21:58:30,654 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4823ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:30, skipping insertion in model container
[2022-01-10 21:58:30,654 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:58:30" (1/1) ...
[2022-01-10 21:58:30,658 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 21:58:30,840 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 21:58:32,272 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label19.c[381878,381891]
[2022-01-10 21:58:32,296 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 21:58:32,306 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 21:58:33,093 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label19.c[381878,381891]
[2022-01-10 21:58:33,098 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 21:58:33,141 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 21:58:33,141 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33 WrapperNode
[2022-01-10 21:58:33,141 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 21:58:33,143 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 21:58:33,143 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 21:58:33,143 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 21:58:33,149 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:33,243 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:33,698 INFO  L137                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12337
[2022-01-10 21:58:33,699 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 21:58:33,704 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 21:58:33,704 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 21:58:33,704 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 21:58:33,712 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:33,712 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:33,796 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:33,796 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:33,972 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:34,014 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:34,083 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:34,150 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 21:58:34,152 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 21:58:34,152 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 21:58:34,153 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 21:58:34,154 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (1/1) ...
[2022-01-10 21:58:34,160 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 21:58:34,168 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 21:58:34,180 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-01-10 21:58:34,194 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-01-10 21:58:34,228 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 21:58:34,228 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 21:58:34,228 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 21:58:34,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 21:58:34,284 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 21:58:34,285 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 21:58:42,000 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 21:58:42,034 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 21:58:42,035 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-10 21:58:42,039 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:58:42 BoogieIcfgContainer
[2022-01-10 21:58:42,039 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 21:58:42,040 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 21:58:42,040 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 21:58:42,041 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 21:58:42,043 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:58:42" (1/1) ...
[2022-01-10 21:58:43,530 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:58:43 BasicIcfg
[2022-01-10 21:58:43,530 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 21:58:43,532 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 21:58:43,532 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 21:58:43,534 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 21:58:43,534 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:58:30" (1/4) ...
[2022-01-10 21:58:43,535 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ac96d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:58:43, skipping insertion in model container
[2022-01-10 21:58:43,535 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:33" (2/4) ...
[2022-01-10 21:58:43,535 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ac96d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:58:43, skipping insertion in model container
[2022-01-10 21:58:43,535 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:58:42" (3/4) ...
[2022-01-10 21:58:43,536 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ac96d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:58:43, skipping insertion in model container
[2022-01-10 21:58:43,536 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:58:43" (4/4) ...
[2022-01-10 21:58:43,536 INFO  L111   eAbstractionObserver]: Analyzing ICFG Problem05_label19.cTransformedIcfg
[2022-01-10 21:58:43,542 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 21:58:43,543 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 21:58:43,591 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 21:58:43,599 INFO  L339      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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2022-01-10 21:58:43,599 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 21:58:43,639 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:58:43,731 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1690
[2022-01-10 21:58:43,731 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 21:58:43,733 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 21:58:43,734 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 21:58:43,737 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 21:58:43,738 INFO  L85        PathProgramCache]: Analyzing trace with hash -1423743000, now seen corresponding path program 1 times
[2022-01-10 21:58:43,745 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 21:58:43,745 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63078653]
[2022-01-10 21:58:43,746 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:58:43,746 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 21:58:44,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:58:46,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 21:58:46,973 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 21:58:46,973 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63078653]
[2022-01-10 21:58:46,974 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63078653] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 21:58:46,974 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 21:58:46,974 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 21:58:46,976 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653216945]
[2022-01-10 21:58:46,977 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 21:58:46,984 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-10 21:58:46,985 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 21:58:47,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-10 21:58:47,015 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-10 21:58:47,021 INFO  L87              Difference]: Start difference. First operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 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 4 states, 4 states have (on average 422.25) internal successors, (1689), 3 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:59:05,511 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 21:59:05,511 INFO  L93              Difference]: Finished difference Result 9571 states and 18469 transitions.
[2022-01-10 21:59:05,513 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 21:59:05,514 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 422.25) internal successors, (1689), 3 states have internal predecessors, (1689), 0 states have call successors, (0), 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 1689
[2022-01-10 21:59:05,519 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 21:59:05,564 INFO  L225             Difference]: With dead ends: 9571
[2022-01-10 21:59:05,565 INFO  L226             Difference]: Without dead ends: 7316
[2022-01-10 21:59:05,573 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-10 21:59:05,575 INFO  L933         BasicCegarLoop]: 2468 mSDtfsCounter, 3694 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 15542 mSolverCounterSat, 4555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3694 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 20097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4555 IncrementalHoareTripleChecker+Valid, 15542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time
[2022-01-10 21:59:05,576 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [3694 Valid, 2851 Invalid, 20097 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4555 Valid, 15542 Invalid, 0 Unknown, 0 Unchecked, 18.1s Time]
[2022-01-10 21:59:05,598 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7316 states.
[2022-01-10 21:59:05,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 5591.
[2022-01-10 21:59:05,711 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5591 states, 5590 states have (on average 1.6051878354203934) internal successors, (8973), 5590 states have internal predecessors, (8973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:59:05,727 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 8973 transitions.
[2022-01-10 21:59:05,729 INFO  L78                 Accepts]: Start accepts. Automaton has 5591 states and 8973 transitions. Word has length 1689
[2022-01-10 21:59:05,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 21:59:05,733 INFO  L470      AbstractCegarLoop]: Abstraction has 5591 states and 8973 transitions.
[2022-01-10 21:59:05,734 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 422.25) internal successors, (1689), 3 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:59:05,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 5591 states and 8973 transitions.
[2022-01-10 21:59:05,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1708
[2022-01-10 21:59:05,830 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 21:59:05,831 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 21:59:05,831 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 21:59:05,832 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 21:59:05,834 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 21:59:05,834 INFO  L85        PathProgramCache]: Analyzing trace with hash 859520020, now seen corresponding path program 1 times
[2022-01-10 21:59:05,834 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 21:59:05,834 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34494668]
[2022-01-10 21:59:05,835 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:59:05,835 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 21:59:06,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:59:08,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 21:59:08,214 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 21:59:08,214 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34494668]
[2022-01-10 21:59:08,214 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34494668] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 21:59:08,215 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 21:59:08,215 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 21:59:08,215 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293448502]
[2022-01-10 21:59:08,278 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 21:59:08,281 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 21:59:08,281 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 21:59:08,281 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 21:59:08,282 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 21:59:08,282 INFO  L87              Difference]: Start difference. First operand 5591 states and 8973 transitions. Second operand  has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:59:14,898 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 21:59:14,899 INFO  L93              Difference]: Finished difference Result 14731 states and 24743 transitions.
[2022-01-10 21:59:14,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 21:59:14,900 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 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 1707
[2022-01-10 21:59:14,902 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 21:59:14,936 INFO  L225             Difference]: With dead ends: 14731
[2022-01-10 21:59:14,936 INFO  L226             Difference]: Without dead ends: 9142
[2022-01-10 21:59:14,946 INFO  L932         BasicCegarLoop]: 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
[2022-01-10 21:59:14,947 INFO  L933         BasicCegarLoop]: 3085 mSDtfsCounter, 366 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 5975 mSolverCounterSat, 874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 6849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 874 IncrementalHoareTripleChecker+Valid, 5975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2022-01-10 21:59:14,947 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 3513 Invalid, 6849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [874 Valid, 5975 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2022-01-10 21:59:14,957 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9142 states.
[2022-01-10 21:59:15,087 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9142 to 9100.
[2022-01-10 21:59:15,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9100 states, 9099 states have (on average 1.569513133311353) internal successors, (14281), 9099 states have internal predecessors, (14281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:59:15,122 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9100 states to 9100 states and 14281 transitions.
[2022-01-10 21:59:15,122 INFO  L78                 Accepts]: Start accepts. Automaton has 9100 states and 14281 transitions. Word has length 1707
[2022-01-10 21:59:15,127 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 21:59:15,127 INFO  L470      AbstractCegarLoop]: Abstraction has 9100 states and 14281 transitions.
[2022-01-10 21:59:15,127 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:59:15,128 INFO  L276                IsEmpty]: Start isEmpty. Operand 9100 states and 14281 transitions.
[2022-01-10 21:59:15,161 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1714
[2022-01-10 21:59:15,162 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 21:59:15,165 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2022-01-10 21:59:15,166 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 21:59:15,166 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 21:59:15,166 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 21:59:15,167 INFO  L85        PathProgramCache]: Analyzing trace with hash -1779479055, now seen corresponding path program 1 times
[2022-01-10 21:59:15,167 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 21:59:15,167 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338396448]
[2022-01-10 21:59:15,167 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:59:15,168 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 21:59:15,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:59:16,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 21:59:16,006 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 21:59:16,006 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338396448]
[2022-01-10 21:59:16,008 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338396448] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 21:59:16,008 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 21:59:16,008 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 21:59:16,009 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080382909]
[2022-01-10 21:59:16,009 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 21:59:16,011 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 21:59:16,011 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 21:59:16,012 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 21:59:16,012 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 21:59:16,013 INFO  L87              Difference]: Start difference. First operand 9100 states and 14281 transitions. Second operand  has 3 states, 3 states have (on average 571.0) internal successors, (1713), 3 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:59:22,884 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 21:59:22,884 INFO  L93              Difference]: Finished difference Result 19969 states and 30414 transitions.
[2022-01-10 21:59:22,884 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 21:59:22,885 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 571.0) internal successors, (1713), 3 states have internal predecessors, (1713), 0 states have call successors, (0), 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 1713
[2022-01-10 21:59:22,885 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 21:59:22,919 INFO  L225             Difference]: With dead ends: 19969
[2022-01-10 21:59:22,919 INFO  L226             Difference]: Without dead ends: 10871
[2022-01-10 21:59:22,933 INFO  L932         BasicCegarLoop]: 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
[2022-01-10 21:59:22,934 INFO  L933         BasicCegarLoop]: 3339 mSDtfsCounter, 1896 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 2113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 7286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2113 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time
[2022-01-10 21:59:22,934 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1896 Valid, 3584 Invalid, 7286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2113 Valid, 5173 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time]
[2022-01-10 21:59:22,946 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10871 states.