/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_BITWISE.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label39.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 10:20:34,553 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 10:20:34,554 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 10:20:34,626 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 10:20:34,627 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 10:20:34,628 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 10:20:34,629 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 10:20:34,630 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 10:20:34,632 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 10:20:34,632 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 10:20:34,634 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 10:20:34,635 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 10:20:34,636 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 10:20:34,637 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 10:20:34,637 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 10:20:34,638 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 10:20:34,640 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 10:20:34,642 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 10:20:34,643 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 10:20:34,644 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 10:20:34,645 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 10:20:34,646 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 10:20:34,648 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 10:20:34,649 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 10:20:34,649 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 10:20:34,650 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 10:20:34,650 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 10:20:34,651 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 10:20:34,651 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 10:20:34,651 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 10:20:34,652 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 10:20:34,653 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 10:20:34,653 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 10:20:34,654 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 10:20:34,654 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 10:20:34,654 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 10:20:34,654 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-10 10:20:34,656 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 10:20:34,656 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf
[2022-01-10 10:20:34,681 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 10:20:34,681 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 10:20:34,681 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 10:20:34,682 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 10:20:34,682 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 10:20:34,683 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 10:20:34,683 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 10:20:34,687 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 10:20:34,687 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 10:20:34,687 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 10:20:34,688 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 10:20:34,688 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 10:20:34,688 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 10:20:34,689 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 10:20:34,689 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 10:20:34,689 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 10:20:34,689 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 10:20:34,689 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 10:20:34,689 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 10:20:34,689 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 10:20:34,689 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 10:20:34,691 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 10:20:34,691 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 10:20:34,691 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 10:20:34,691 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 10:20:34,692 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 10:20:34,692 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 10:20:34,692 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 10:20:34,692 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 10:20:34,692 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 10:20:34,692 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 10:20:34,692 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 10:20:34,694 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 10:20:34,694 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_BITWISE
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 10:20:34,886 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 10:20:34,908 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 10:20:34,910 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 10:20:34,911 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 10:20:34,912 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 10:20:34,913 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label39.c
[2022-01-10 10:20:34,983 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/850af72c0/8b9f6c230da0470593ca3ae76b8891c5/FLAG7181c3b1f
[2022-01-10 10:20:35,768 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 10:20:35,769 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label39.c
[2022-01-10 10:20:35,818 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/850af72c0/8b9f6c230da0470593ca3ae76b8891c5/FLAG7181c3b1f
[2022-01-10 10:20:35,985 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/850af72c0/8b9f6c230da0470593ca3ae76b8891c5
[2022-01-10 10:20:35,988 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 10:20:35,989 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 10:20:35,990 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 10:20:35,990 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 10:20:35,996 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 10:20:35,997 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:20:35" (1/1) ...
[2022-01-10 10:20:35,998 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281b4f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:35, skipping insertion in model container
[2022-01-10 10:20:35,998 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:20:35" (1/1) ...
[2022-01-10 10:20:36,004 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 10:20:36,176 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 10:20:37,690 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_label39.c[375637,375650]
[2022-01-10 10:20:37,712 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 10:20:37,722 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 10:20:38,483 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_label39.c[375637,375650]
[2022-01-10 10:20:38,492 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 10:20:38,541 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 10:20:38,541 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38 WrapperNode
[2022-01-10 10:20:38,542 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 10:20:38,543 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 10:20:38,543 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 10:20:38,543 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 10:20:38,549 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:38,648 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:38,942 INFO  L137                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12337
[2022-01-10 10:20:38,943 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 10:20:38,944 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 10:20:38,944 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 10:20:38,944 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 10:20:38,951 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:38,951 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:39,002 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:39,003 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:39,219 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:39,259 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:39,282 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:39,329 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 10:20:39,330 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 10:20:39,330 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 10:20:39,330 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 10:20:39,331 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (1/1) ...
[2022-01-10 10:20:39,337 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 10:20:39,347 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 10:20:39,364 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 10:20:39,384 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 10:20:39,398 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 10:20:39,398 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 10:20:39,398 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 10:20:39,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 10:20:39,567 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 10:20:39,569 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 10:20:47,741 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 10:20:47,763 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 10:20:47,764 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-10 10:20:47,768 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:20:47 BoogieIcfgContainer
[2022-01-10 10:20:47,768 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 10:20:47,769 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 10:20:47,769 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 10:20:47,770 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 10:20:47,773 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:20:47" (1/1) ...
[2022-01-10 10:20:49,497 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:20:49 BasicIcfg
[2022-01-10 10:20:49,497 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 10:20:49,499 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 10:20:49,499 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 10:20:49,501 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 10:20:49,502 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 10:20:35" (1/4) ...
[2022-01-10 10:20:49,502 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6221cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:20:49, skipping insertion in model container
[2022-01-10 10:20:49,502 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:20:38" (2/4) ...
[2022-01-10 10:20:49,503 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6221cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:20:49, skipping insertion in model container
[2022-01-10 10:20:49,503 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:20:47" (3/4) ...
[2022-01-10 10:20:49,503 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6221cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 10:20:49, skipping insertion in model container
[2022-01-10 10:20:49,503 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:20:49" (4/4) ...
[2022-01-10 10:20:49,504 INFO  L111   eAbstractionObserver]: Analyzing ICFG Problem05_label39.cTransformedIcfg
[2022-01-10 10:20:49,510 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 10:20:49,511 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 10:20:49,559 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 10:20:49,565 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 10:20:49,565 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 10:20:49,608 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 10:20:49,710 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1644
[2022-01-10 10:20:49,710 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 10:20:49,712 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]
[2022-01-10 10:20:49,712 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 10:20:49,717 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 10:20:49,718 INFO  L85        PathProgramCache]: Analyzing trace with hash -460396541, now seen corresponding path program 1 times
[2022-01-10 10:20:49,728 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 10:20:49,728 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075474079]
[2022-01-10 10:20:49,729 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 10:20:49,729 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 10:20:51,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 10:20:52,811 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 10:20:52,812 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 10:20:52,812 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075474079]
[2022-01-10 10:20:52,813 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075474079] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 10:20:52,813 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 10:20:52,813 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 10:20:52,815 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177922863]
[2022-01-10 10:20:52,816 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 10:20:52,824 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 10:20:52,824 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 10:20:52,851 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 10:20:52,852 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 10:20:52,860 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 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 2 states have internal predecessors, (1643), 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 10:21:00,973 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 10:21:00,973 INFO  L93              Difference]: Finished difference Result 6205 states and 11758 transitions.
[2022-01-10 10:21:00,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 10:21:00,976 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 2 states have internal predecessors, (1643), 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 1643
[2022-01-10 10:21:00,981 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 10:21:01,019 INFO  L225             Difference]: With dead ends: 6205
[2022-01-10 10:21:01,020 INFO  L226             Difference]: Without dead ends: 3956
[2022-01-10 10:21:01,029 INFO  L932         BasicCegarLoop]: 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
[2022-01-10 10:21:01,033 INFO  L933         BasicCegarLoop]: 756 mSDtfsCounter, 578 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 5953 mSolverCounterSat, 1890 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 7843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1890 IncrementalHoareTripleChecker+Valid, 5953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time
[2022-01-10 10:21:01,034 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [578 Valid, 847 Invalid, 7843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1890 Valid, 5953 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time]
[2022-01-10 10:21:01,057 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3956 states.
[2022-01-10 10:21:01,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3893.
[2022-01-10 10:21:01,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3893 states, 3892 states have (on average 1.8661356628982528) internal successors, (7263), 3892 states have internal predecessors, (7263), 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 10:21:01,184 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3893 states to 3893 states and 7263 transitions.
[2022-01-10 10:21:01,186 INFO  L78                 Accepts]: Start accepts. Automaton has 3893 states and 7263 transitions. Word has length 1643
[2022-01-10 10:21:01,190 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 10:21:01,190 INFO  L470      AbstractCegarLoop]: Abstraction has 3893 states and 7263 transitions.
[2022-01-10 10:21:01,191 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 2 states have internal predecessors, (1643), 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 10:21:01,191 INFO  L276                IsEmpty]: Start isEmpty. Operand 3893 states and 7263 transitions.
[2022-01-10 10:21:01,269 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1650
[2022-01-10 10:21:01,269 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 10:21:01,270 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-01-10 10:21:01,270 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 10:21:01,271 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 10:21:01,271 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 10:21:01,272 INFO  L85        PathProgramCache]: Analyzing trace with hash 264050080, now seen corresponding path program 1 times
[2022-01-10 10:21:01,272 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 10:21:01,272 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994962760]
[2022-01-10 10:21:01,273 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 10:21:01,273 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 10:21:01,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 10:21:02,409 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 10:21:02,410 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 10:21:02,410 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994962760]
[2022-01-10 10:21:02,411 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994962760] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 10:21:02,411 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 10:21:02,411 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 10:21:02,411 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723098933]
[2022-01-10 10:21:02,411 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 10:21:02,414 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 10:21:02,414 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 10:21:02,415 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 10:21:02,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 10:21:02,416 INFO  L87              Difference]: Start difference. First operand 3893 states and 7263 transitions. Second operand  has 3 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 2 states have internal predecessors, (1649), 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 10:21:09,991 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 10:21:09,991 INFO  L93              Difference]: Finished difference Result 9617 states and 17978 transitions.
[2022-01-10 10:21:09,991 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 10:21:09,992 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 2 states have internal predecessors, (1649), 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 1649
[2022-01-10 10:21:09,992 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 10:21:10,012 INFO  L225             Difference]: With dead ends: 9617
[2022-01-10 10:21:10,013 INFO  L226             Difference]: Without dead ends: 5726
[2022-01-10 10:21:10,018 INFO  L932         BasicCegarLoop]: 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
[2022-01-10 10:21:10,019 INFO  L933         BasicCegarLoop]: 1351 mSDtfsCounter, 1998 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 5245 mSolverCounterSat, 2286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 7531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2286 IncrementalHoareTripleChecker+Valid, 5245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time
[2022-01-10 10:21:10,019 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1998 Valid, 1572 Invalid, 7531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2286 Valid, 5245 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time]
[2022-01-10 10:21:10,026 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5726 states.
[2022-01-10 10:21:10,093 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5726 to 5643.
[2022-01-10 10:21:10,102 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5643 states, 5642 states have (on average 1.6267281105990783) internal successors, (9178), 5642 states have internal predecessors, (9178), 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 10:21:10,114 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5643 states to 5643 states and 9178 transitions.
[2022-01-10 10:21:10,115 INFO  L78                 Accepts]: Start accepts. Automaton has 5643 states and 9178 transitions. Word has length 1649
[2022-01-10 10:21:10,115 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 10:21:10,115 INFO  L470      AbstractCegarLoop]: Abstraction has 5643 states and 9178 transitions.
[2022-01-10 10:21:10,116 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 2 states have internal predecessors, (1649), 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 10:21:10,117 INFO  L276                IsEmpty]: Start isEmpty. Operand 5643 states and 9178 transitions.
[2022-01-10 10:21:10,143 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1651
[2022-01-10 10:21:10,144 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 10:21:10,145 INFO  L514         BasicCegarLoop]: trace histogram [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, 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]
[2022-01-10 10:21:10,148 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 10:21:10,148 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 10:21:10,153 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 10:21:10,154 INFO  L85        PathProgramCache]: Analyzing trace with hash 649261747, now seen corresponding path program 1 times
[2022-01-10 10:21:10,154 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 10:21:10,154 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434894914]
[2022-01-10 10:21:10,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 10:21:10,155 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 10:21:10,768 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 10:21:12,009 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 10:21:12,010 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 10:21:12,010 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434894914]
[2022-01-10 10:21:12,011 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434894914] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 10:21:12,011 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 10:21:12,012 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 10:21:12,012 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293939691]
[2022-01-10 10:21:12,012 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 10:21:12,014 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 10:21:12,014 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 10:21:12,015 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 10:21:12,015 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 10:21:12,015 INFO  L87              Difference]: Start difference. First operand 5643 states and 9178 transitions. Second operand  has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 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 10:21:18,968 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 10:21:18,968 INFO  L93              Difference]: Finished difference Result 16434 states and 26841 transitions.
[2022-01-10 10:21:18,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 10:21:18,976 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 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 1650
[2022-01-10 10:21:18,978 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 10:21:19,012 INFO  L225             Difference]: With dead ends: 16434
[2022-01-10 10:21:19,013 INFO  L226             Difference]: Without dead ends: 10793
[2022-01-10 10:21:19,025 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 10:21:19,028 INFO  L933         BasicCegarLoop]: 3750 mSDtfsCounter, 453 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 4809 mSolverCounterSat, 2213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 3996 SdHoareTripleChecker+Invalid, 7022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2213 IncrementalHoareTripleChecker+Valid, 4809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2022-01-10 10:21:19,029 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 3996 Invalid, 7022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2213 Valid, 4809 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2022-01-10 10:21:19,041 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10793 states.
[2022-01-10 10:21:19,170 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10793 to 10787.
[2022-01-10 10:21:19,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10787 states, 10786 states have (on average 1.4322269608752085) internal successors, (15448), 10786 states have internal predecessors, (15448), 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 10:21:19,204 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10787 states to 10787 states and 15448 transitions.
[2022-01-10 10:21:19,204 INFO  L78                 Accepts]: Start accepts. Automaton has 10787 states and 15448 transitions. Word has length 1650
[2022-01-10 10:21:19,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 10:21:19,206 INFO  L470      AbstractCegarLoop]: Abstraction has 10787 states and 15448 transitions.
[2022-01-10 10:21:19,207 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 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 10:21:19,207 INFO  L276                IsEmpty]: Start isEmpty. Operand 10787 states and 15448 transitions.
[2022-01-10 10:21:19,238 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1663
[2022-01-10 10:21:19,238 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 10:21:19,239 INFO  L514         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1]
[2022-01-10 10:21:19,239 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-10 10:21:19,240 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 10:21:19,240 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 10:21:19,240 INFO  L85        PathProgramCache]: Analyzing trace with hash -1490684519, now seen corresponding path program 1 times
[2022-01-10 10:21:19,241 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 10:21:19,241 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698856969]
[2022-01-10 10:21:19,241 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 10:21:19,241 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 10:21:19,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 10:21:19,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-01-10 10:21:19,914 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 10:21:19,914 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698856969]
[2022-01-10 10:21:19,914 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698856969] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 10:21:19,914 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 10:21:19,914 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 10:21:19,914 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652031673]
[2022-01-10 10:21:19,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 10:21:19,916 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 10:21:19,916 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 10:21:19,916 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 10:21:19,917 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 10:21:19,917 INFO  L87              Difference]: Start difference. First operand 10787 states and 15448 transitions. Second operand  has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 2 states have internal predecessors, (1652), 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 10:21:26,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 10:21:26,493 INFO  L93              Difference]: Finished difference Result 26674 states and 39335 transitions.
[2022-01-10 10:21:26,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 10:21:26,494 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 550.6666666666666) internal successors, (1652), 2 states have internal predecessors, (1652), 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 1662
[2022-01-10 10:21:26,494 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 10:21:26,530 INFO  L225             Difference]: With dead ends: 26674
[2022-01-10 10:21:26,530 INFO  L226             Difference]: Without dead ends: 15889
[2022-01-10 10:21:26,547 INFO  L932         BasicCegarLoop]: 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
[2022-01-10 10:21:26,548 INFO  L933         BasicCegarLoop]: 1690 mSDtfsCounter, 1951 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 5540 mSolverCounterSat, 1408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 6948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1408 IncrementalHoareTripleChecker+Valid, 5540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time
[2022-01-10 10:21:26,548 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1951 Valid, 1997 Invalid, 6948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1408 Valid, 5540 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time]
[2022-01-10 10:21:26,562 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15889 states.