/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_SUM.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-11 06:49:30,002 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-11 06:49:30,003 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2022-01-11 06:49:30,040 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2022-01-11 06:49:30,065 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-11 06:49:30,066 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-11 06:49:30,067 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-11 06:49:30,068 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-11 06:49:30,069 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-11 06:49:30,070 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-11 06:49:30,081 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-11 06:49:30,090 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-11 06:49:30,091 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-11 06:49:30,092 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-11 06:49:30,092 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-11 06:49:30,095 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-01-11 06:49:30,095 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-11 06:49:30,096 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-11 06:49:30,096 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-11 06:49:30,097 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-11 06:49:30,097 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-11 06:49:30,098 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-11 06:49:30,098 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-11 06:49:30,099 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-11 06:49:30,100 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-11 06:49:30,100 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2022-01-11 06:49:30,101 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-11 06:49:30,103 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-11 06:49:30,113 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf
[2022-01-11 06:49:30,137 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-11 06:49:30,138 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-11 06:49:30,138 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-11 06:49:30,138 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-11 06:49:30,139 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-11 06:49:30,139 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-11 06:49:30,139 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-11 06:49:30,140 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-11 06:49:30,140 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-11 06:49:30,140 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-11 06:49:30,140 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-11 06:49:30,140 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-11 06:49:30,140 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-11 06:49:30,140 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-11 06:49:30,141 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-11 06:49:30,141 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-11 06:49:30,141 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-11 06:49:30,141 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-11 06:49:30,141 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-11 06:49:30,141 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-11 06:49:30,141 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-11 06:49:30,141 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 06:49:30,142 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-11 06:49:30,142 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-11 06:49:30,142 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-11 06:49:30,142 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-11 06:49:30,142 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-11 06:49:30,142 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-11 06:49:30,142 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-11 06:49:30,142 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-11 06:49:30,143 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-11 06:49:30,143 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-11 06:49:30,143 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-11 06:49:30,143 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_SUM
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-11 06:49:30,375 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-11 06:49:30,403 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-11 06:49:30,406 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-11 06:49:30,407 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-11 06:49:30,408 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-11 06:49:30,409 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c
[2022-01-11 06:49:30,472 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d713997f/99254ac6acb04c7ab46923d8e9b13fba/FLAG86ad8cc68
[2022-01-11 06:49:31,195 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-11 06:49:31,196 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c
[2022-01-11 06:49:31,250 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d713997f/99254ac6acb04c7ab46923d8e9b13fba/FLAG86ad8cc68
[2022-01-11 06:49:31,719 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d713997f/99254ac6acb04c7ab46923d8e9b13fba
[2022-01-11 06:49:31,721 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-11 06:49:31,725 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-11 06:49:31,729 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-11 06:49:31,729 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-11 06:49:31,732 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-11 06:49:31,733 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:49:31" (1/1) ...
[2022-01-11 06:49:31,734 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed9367a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:31, skipping insertion in model container
[2022-01-11 06:49:31,734 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:49:31" (1/1) ...
[2022-01-11 06:49:31,739 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-11 06:49:32,108 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 06:49:32,913 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[40692,40705]
[2022-01-11 06:49:35,232 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 06:49:35,248 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-11 06:49:35,475 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[40692,40705]
[2022-01-11 06:49:37,544 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 06:49:37,572 INFO  L208         MainTranslator]: Completed translation
[2022-01-11 06:49:37,573 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37 WrapperNode
[2022-01-11 06:49:37,573 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-11 06:49:37,574 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-11 06:49:37,574 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-11 06:49:37,574 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-11 06:49:37,580 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:37,687 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:37,967 INFO  L137                Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22690
[2022-01-11 06:49:37,968 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-11 06:49:37,969 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-11 06:49:37,969 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-11 06:49:37,969 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-11 06:49:37,977 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:37,977 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:38,177 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:38,178 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:38,337 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:38,421 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:38,609 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:38,706 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-11 06:49:38,707 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-11 06:49:38,707 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-11 06:49:38,707 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-11 06:49:38,709 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (1/1) ...
[2022-01-11 06:49:38,716 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 06:49:38,725 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 06:49:38,737 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)
[2022-01-11 06:49:38,761 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
[2022-01-11 06:49:38,775 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-11 06:49:38,775 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-11 06:49:38,775 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-11 06:49:38,775 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-11 06:49:39,210 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-11 06:49:39,212 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-11 06:49:49,410 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-11 06:49:49,460 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-11 06:49:49,461 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-01-11 06:49:49,471 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:49:49 BoogieIcfgContainer
[2022-01-11 06:49:49,471 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-11 06:49:49,472 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-11 06:49:49,472 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-11 06:49:49,473 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-11 06:49:49,476 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:49:49" (1/1) ...
[2022-01-11 06:49:55,736 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:49:55 BasicIcfg
[2022-01-11 06:49:55,737 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-11 06:49:55,739 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-11 06:49:55,739 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-11 06:49:55,743 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-11 06:49:55,743 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:49:31" (1/4) ...
[2022-01-11 06:49:55,746 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f25fbee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:49:55, skipping insertion in model container
[2022-01-11 06:49:55,746 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:49:37" (2/4) ...
[2022-01-11 06:49:55,746 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f25fbee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:49:55, skipping insertion in model container
[2022-01-11 06:49:55,746 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:49:49" (3/4) ...
[2022-01-11 06:49:55,747 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f25fbee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:49:55, skipping insertion in model container
[2022-01-11 06:49:55,747 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:49:55" (4/4) ...
[2022-01-11 06:49:55,749 INFO  L111   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c.v+lhb-reducer.cTransformedIcfg
[2022-01-11 06:49:55,754 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-11 06:49:55,755 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-11 06:49:55,822 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-11 06:49:55,830 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
[2022-01-11 06:49:55,830 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-11 06:49:55,947 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6864 states, 6862 states have (on average 1.750510055377441) internal successors, (12012), 6863 states have internal predecessors, (12012), 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)
[2022-01-11 06:49:56,002 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 384
[2022-01-11 06:49:56,003 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 06:49:56,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 06:49:56,005 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 06:49:56,009 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 06:49:56,010 INFO  L85        PathProgramCache]: Analyzing trace with hash 843833885, now seen corresponding path program 1 times
[2022-01-11 06:49:56,017 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 06:49:56,018 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847878186]
[2022-01-11 06:49:56,019 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 06:49:56,020 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 06:49:56,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 06:49:57,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 06:49:57,196 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 06:49:57,196 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847878186]
[2022-01-11 06:49:57,197 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847878186] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 06:49:57,197 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 06:49:57,197 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-11 06:49:57,198 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876867279]
[2022-01-11 06:49:57,199 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 06:49:57,203 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-11 06:49:57,203 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 06:49:57,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-11 06:49:57,261 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-11 06:49:57,297 INFO  L87              Difference]: Start difference. First operand  has 6864 states, 6862 states have (on average 1.750510055377441) internal successors, (12012), 6863 states have internal predecessors, (12012), 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 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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)
[2022-01-11 06:49:57,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 06:49:57,732 INFO  L93              Difference]: Finished difference Result 13714 states and 23778 transitions.
[2022-01-11 06:49:57,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-11 06:49:57,736 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 383
[2022-01-11 06:49:57,738 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 06:49:57,798 INFO  L225             Difference]: With dead ends: 13714
[2022-01-11 06:49:57,799 INFO  L226             Difference]: Without dead ends: 8183
[2022-01-11 06:49:57,819 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
[2022-01-11 06:49:57,822 INFO  L933         BasicCegarLoop]: 13855 mSDtfsCounter, 8117 mSDsluCounter, 6063 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8117 SdHoareTripleChecker+Valid, 19918 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 06:49:57,823 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [8117 Valid, 19918 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 06:49:57,852 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8183 states.
[2022-01-11 06:49:58,161 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 8181.
[2022-01-11 06:49:58,185 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8181 states, 8180 states have (on average 1.6756723716381419) internal successors, (13707), 8180 states have internal predecessors, (13707), 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)
[2022-01-11 06:49:58,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8181 states to 8181 states and 13707 transitions.
[2022-01-11 06:49:58,227 INFO  L78                 Accepts]: Start accepts. Automaton has 8181 states and 13707 transitions. Word has length 383
[2022-01-11 06:49:58,231 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 06:49:58,232 INFO  L470      AbstractCegarLoop]: Abstraction has 8181 states and 13707 transitions.
[2022-01-11 06:49:58,236 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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)
[2022-01-11 06:49:58,236 INFO  L276                IsEmpty]: Start isEmpty. Operand 8181 states and 13707 transitions.
[2022-01-11 06:49:58,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 384
[2022-01-11 06:49:58,259 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 06:49:58,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 06:49:58,260 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-11 06:49:58,261 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 06:49:58,263 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 06:49:58,263 INFO  L85        PathProgramCache]: Analyzing trace with hash 989297998, now seen corresponding path program 1 times
[2022-01-11 06:49:58,263 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 06:49:58,264 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083107744]
[2022-01-11 06:49:58,264 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 06:49:58,264 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 06:49:58,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 06:49:58,983 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 06:49:58,984 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 06:49:58,984 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083107744]
[2022-01-11 06:49:58,985 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083107744] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 06:49:58,985 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 06:49:58,985 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-11 06:49:58,986 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129722629]
[2022-01-11 06:49:58,986 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 06:49:58,989 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-11 06:49:58,989 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 06:49:58,990 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-11 06:49:58,990 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-11 06:49:58,991 INFO  L87              Difference]: Start difference. First operand 8181 states and 13707 transitions. Second operand  has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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)
[2022-01-11 06:50:00,036 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 06:50:00,036 INFO  L93              Difference]: Finished difference Result 24418 states and 40894 transitions.
[2022-01-11 06:50:00,037 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-01-11 06:50:00,038 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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 383
[2022-01-11 06:50:00,039 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 06:50:00,121 INFO  L225             Difference]: With dead ends: 24418
[2022-01-11 06:50:00,121 INFO  L226             Difference]: Without dead ends: 16314
[2022-01-11 06:50:00,146 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-11 06:50:00,147 INFO  L933         BasicCegarLoop]: 14716 mSDtfsCounter, 25646 mSDsluCounter, 10073 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25646 SdHoareTripleChecker+Valid, 24789 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 06:50:00,148 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [25646 Valid, 24789 Invalid, 124 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 06:50:00,172 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16314 states.
[2022-01-11 06:50:00,968 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16314 to 16312.
[2022-01-11 06:50:01,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16312 states, 16311 states have (on average 1.6739623566918032) internal successors, (27304), 16311 states have internal predecessors, (27304), 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)
[2022-01-11 06:50:01,063 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16312 states to 16312 states and 27304 transitions.
[2022-01-11 06:50:01,064 INFO  L78                 Accepts]: Start accepts. Automaton has 16312 states and 27304 transitions. Word has length 383
[2022-01-11 06:50:01,066 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 06:50:01,066 INFO  L470      AbstractCegarLoop]: Abstraction has 16312 states and 27304 transitions.
[2022-01-11 06:50:01,066 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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)
[2022-01-11 06:50:01,066 INFO  L276                IsEmpty]: Start isEmpty. Operand 16312 states and 27304 transitions.
[2022-01-11 06:50:01,105 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 386
[2022-01-11 06:50:01,106 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 06:50:01,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 06:50:01,110 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-11 06:50:01,110 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 06:50:01,116 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 06:50:01,116 INFO  L85        PathProgramCache]: Analyzing trace with hash 1870054771, now seen corresponding path program 1 times
[2022-01-11 06:50:01,117 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 06:50:01,117 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876768842]
[2022-01-11 06:50:01,117 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 06:50:01,117 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 06:50:01,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 06:50:01,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 06:50:01,575 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 06:50:01,575 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876768842]
[2022-01-11 06:50:01,576 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876768842] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 06:50:01,576 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 06:50:01,576 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 06:50:01,576 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134639260]
[2022-01-11 06:50:01,577 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 06:50:01,577 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 06:50:01,577 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 06:50:01,578 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 06:50:01,578 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-11 06:50:01,578 INFO  L87              Difference]: Start difference. First operand 16312 states and 27304 transitions. Second operand  has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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)
[2022-01-11 06:50:04,106 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 06:50:04,106 INFO  L93              Difference]: Finished difference Result 65036 states and 108831 transitions.
[2022-01-11 06:50:04,107 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-11 06:50:04,107 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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 385
[2022-01-11 06:50:04,109 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 06:50:04,270 INFO  L225             Difference]: With dead ends: 65036
[2022-01-11 06:50:04,271 INFO  L226             Difference]: Without dead ends: 48738
[2022-01-11 06:50:04,317 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2022-01-11 06:50:04,321 INFO  L933         BasicCegarLoop]: 14407 mSDtfsCounter, 30170 mSDsluCounter, 30130 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30170 SdHoareTripleChecker+Valid, 44537 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-11 06:50:04,322 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [30170 Valid, 44537 Invalid, 278 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-01-11 06:50:04,378 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48738 states.
[2022-01-11 06:50:05,859 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48738 to 32510.
[2022-01-11 06:50:05,927 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32510 states, 32509 states have (on average 1.6713217878126057) internal successors, (54333), 32509 states have internal predecessors, (54333), 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)
[2022-01-11 06:50:06,004 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32510 states to 32510 states and 54333 transitions.
[2022-01-11 06:50:06,004 INFO  L78                 Accepts]: Start accepts. Automaton has 32510 states and 54333 transitions. Word has length 385
[2022-01-11 06:50:06,004 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 06:50:06,005 INFO  L470      AbstractCegarLoop]: Abstraction has 32510 states and 54333 transitions.
[2022-01-11 06:50:06,005 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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)
[2022-01-11 06:50:06,005 INFO  L276                IsEmpty]: Start isEmpty. Operand 32510 states and 54333 transitions.
[2022-01-11 06:50:06,074 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 389
[2022-01-11 06:50:06,074 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 06:50:06,074 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 06:50:06,075 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-11 06:50:06,075 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 06:50:06,076 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 06:50:06,076 INFO  L85        PathProgramCache]: Analyzing trace with hash 922862849, now seen corresponding path program 1 times
[2022-01-11 06:50:06,076 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 06:50:06,076 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225720376]
[2022-01-11 06:50:06,076 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 06:50:06,077 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 06:50:06,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 06:50:06,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 06:50:06,367 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 06:50:06,367 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225720376]
[2022-01-11 06:50:06,367 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225720376] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 06:50:06,368 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 06:50:06,368 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-11 06:50:06,368 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003225712]
[2022-01-11 06:50:06,368 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 06:50:06,369 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-11 06:50:06,369 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 06:50:06,369 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-11 06:50:06,369 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-11 06:50:06,369 INFO  L87              Difference]: Start difference. First operand 32510 states and 54333 transitions. Second operand  has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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)
[2022-01-11 06:50:08,162 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 06:50:08,163 INFO  L93              Difference]: Finished difference Result 70701 states and 118166 transitions.
[2022-01-11 06:50:08,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-11 06:50:08,163 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 388
[2022-01-11 06:50:08,164 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 06:50:08,260 INFO  L225             Difference]: With dead ends: 70701
[2022-01-11 06:50:08,260 INFO  L226             Difference]: Without dead ends: 40376
[2022-01-11 06:50:08,305 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
[2022-01-11 06:50:08,306 INFO  L933         BasicCegarLoop]: 13760 mSDtfsCounter, 4910 mSDsluCounter, 8816 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 22576 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-11 06:50:08,306 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [4910 Valid, 22576 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-01-11 06:50:08,345 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40376 states.
[2022-01-11 06:50:09,921 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40376 to 40302.
[2022-01-11 06:50:09,978 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40302 states, 40301 states have (on average 1.6733331679114662) internal successors, (67437), 40301 states have internal predecessors, (67437), 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)
[2022-01-11 06:50:10,072 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40302 states to 40302 states and 67437 transitions.
[2022-01-11 06:50:10,072 INFO  L78                 Accepts]: Start accepts. Automaton has 40302 states and 67437 transitions. Word has length 388
[2022-01-11 06:50:10,073 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 06:50:10,073 INFO  L470      AbstractCegarLoop]: Abstraction has 40302 states and 67437 transitions.
[2022-01-11 06:50:10,074 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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)
[2022-01-11 06:50:10,074 INFO  L276                IsEmpty]: Start isEmpty. Operand 40302 states and 67437 transitions.
[2022-01-11 06:50:10,161 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 390
[2022-01-11 06:50:10,162 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 06:50:10,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 06:50:10,162 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-01-11 06:50:10,163 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 06:50:10,163 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 06:50:10,163 INFO  L85        PathProgramCache]: Analyzing trace with hash 1303121555, now seen corresponding path program 1 times
[2022-01-11 06:50:10,163 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 06:50:10,163 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863437157]
[2022-01-11 06:50:10,164 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 06:50:10,164 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 06:50:10,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 06:50:10,553 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 06:50:10,554 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 06:50:10,554 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863437157]
[2022-01-11 06:50:10,554 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863437157] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 06:50:10,555 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 06:50:10,555 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 06:50:10,555 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624116489]
[2022-01-11 06:50:10,556 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 06:50:10,556 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 06:50:10,556 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 06:50:10,557 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 06:50:10,557 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-11 06:50:10,557 INFO  L87              Difference]: Start difference. First operand 40302 states and 67437 transitions. Second operand  has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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)
[2022-01-11 06:50:16,159 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 06:50:16,159 INFO  L93              Difference]: Finished difference Result 160615 states and 268668 transitions.
[2022-01-11 06:50:16,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-11 06:50:16,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 389
[2022-01-11 06:50:16,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 06:50:16,415 INFO  L225             Difference]: With dead ends: 160615
[2022-01-11 06:50:16,415 INFO  L226             Difference]: Without dead ends: 120344
[2022-01-11 06:50:16,471 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2022-01-11 06:50:16,472 INFO  L933         BasicCegarLoop]: 27460 mSDtfsCounter, 30067 mSDsluCounter, 29895 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30067 SdHoareTripleChecker+Valid, 57355 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-01-11 06:50:16,472 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [30067 Valid, 57355 Invalid, 496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-01-11 06:50:16,589 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120344 states.