/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/xcsp/AllInterval-006.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 07:27:44,495 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 07:27:44,497 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 07:27:44,558 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 07:27:44,558 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 07:27:44,559 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 07:27:44,560 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 07:27:44,561 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 07:27:44,562 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 07:27:44,562 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 07:27:44,564 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 07:27:44,564 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 07:27:44,565 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 07:27:44,566 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 07:27:44,566 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 07:27:44,567 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 07:27:44,568 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 07:27:44,569 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 07:27:44,570 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 07:27:44,574 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 07:27:44,575 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 07:27:44,575 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 07:27:44,577 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 07:27:44,577 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 07:27:44,577 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 07:27:44,578 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 07:27:44,578 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 07:27:44,579 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 07:27:44,579 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 07:27:44,579 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 07:27:44,580 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 07:27:44,580 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 07:27:44,581 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 07:27:44,581 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 07:27:44,581 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 07:27:44,582 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 07:27:44,582 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 07:27:44,582 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 07:27:44,583 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 07:27:44,583 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2022-01-10 07:27:44,599 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 07:27:44,599 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 07:27:44,599 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 07:27:44,599 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 07:27:44,600 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-01-10 07:27:44,600 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-01-10 07:27:44,600 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 07:27:44,600 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 07:27:44,600 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 07:27:44,600 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 07:27:44,600 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 07:27:44,600 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 07:27:44,601 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 07:27:44,601 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 07:27:44,602 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * Trace refinement strategy=WOLF
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 07:27:44,602 INFO  L138        SettingsManager]:  * Logic for external solver=AUFBV
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 07:27:44,796 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 07:27:44,814 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 07:27:44,815 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 07:27:44,816 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 07:27:44,818 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 07:27:44,819 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/xcsp/AllInterval-006.c
[2022-01-10 07:27:44,866 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88ea2f30/df8ef208731b4e9eb300fe7191a4545a/FLAG0dfc370b8
[2022-01-10 07:27:45,245 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 07:27:45,246 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-006.c
[2022-01-10 07:27:45,252 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88ea2f30/df8ef208731b4e9eb300fe7191a4545a/FLAG0dfc370b8
[2022-01-10 07:27:45,271 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88ea2f30/df8ef208731b4e9eb300fe7191a4545a
[2022-01-10 07:27:45,275 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 07:27:45,280 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-01-10 07:27:45,293 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 07:27:45,293 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 07:27:45,303 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 07:27:45,304 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,305 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a65d13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45, skipping insertion in model container
[2022-01-10 07:27:45,305 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,310 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 07:27:45,328 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 07:27:45,515 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-006.c[3098,3111]
[2022-01-10 07:27:45,522 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 07:27:45,532 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 07:27:45,563 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-006.c[3098,3111]
[2022-01-10 07:27:45,564 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 07:27:45,574 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 07:27:45,575 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45 WrapperNode
[2022-01-10 07:27:45,575 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 07:27:45,576 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 07:27:45,576 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 07:27:45,576 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 07:27:45,581 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,593 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,615 INFO  L137                Inliner]: procedures = 13, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 133
[2022-01-10 07:27:45,615 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 07:27:45,616 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 07:27:45,616 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 07:27:45,616 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 07:27:45,622 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,622 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,624 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,625 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,637 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,638 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,639 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,640 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 07:27:45,641 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 07:27:45,641 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 07:27:45,641 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 07:27:45,645 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (1/1) ...
[2022-01-10 07:27:45,650 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 07:27:45,659 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 07:27:45,680 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 07:27:45,708 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 07:27:45,724 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 07:27:45,724 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 07:27:45,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 07:27:45,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 07:27:45,725 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2022-01-10 07:27:45,725 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2022-01-10 07:27:45,772 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 07:27:45,774 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 07:27:45,976 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 07:27:45,982 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 07:27:45,982 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-01-10 07:27:45,983 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:27:45 BoogieIcfgContainer
[2022-01-10 07:27:45,984 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 07:27:45,985 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 07:27:45,985 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 07:27:45,987 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 07:27:45,987 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:27:45" (1/3) ...
[2022-01-10 07:27:45,988 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39285059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:27:45, skipping insertion in model container
[2022-01-10 07:27:45,988 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:45" (2/3) ...
[2022-01-10 07:27:45,988 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39285059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:27:45, skipping insertion in model container
[2022-01-10 07:27:45,988 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:27:45" (3/3) ...
[2022-01-10 07:27:45,989 INFO  L111   eAbstractionObserver]: Analyzing ICFG AllInterval-006.c
[2022-01-10 07:27:45,992 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 07:27:45,992 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 07:27:46,031 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 07:27:46,037 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 07:27:46,038 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 07:27:46,054 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2022-01-10 07:27:46,073 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 290
[2022-01-10 07:27:46,073 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 07:27:46,074 INFO  L514         BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:46,074 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 07:27:46,078 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 07:27:46,078 INFO  L85        PathProgramCache]: Analyzing trace with hash -1899664910, now seen corresponding path program 1 times
[2022-01-10 07:27:46,089 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 07:27:46,090 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000372210]
[2022-01-10 07:27:46,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 07:27:46,090 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 07:27:46,091 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 07:27:46,093 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 07:27:46,097 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-01-10 07:27:46,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 07:27:46,285 INFO  L263         TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-01-10 07:27:46,305 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 07:27:46,779 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 1974 proven. 0 refuted. 0 times theorem prover too weak. 3330 trivial. 0 not checked.
[2022-01-10 07:27:46,779 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 07:27:46,780 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 07:27:46,780 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000372210]
[2022-01-10 07:27:46,780 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000372210] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 07:27:46,781 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 07:27:46,781 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 07:27:46,782 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939933143]
[2022-01-10 07:27:46,782 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 07:27:46,786 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 07:27:46,786 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 07:27:46,803 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 07:27:46,804 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 07:27:46,805 INFO  L87              Difference]: Start difference. First operand  has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52)
[2022-01-10 07:27:46,828 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 07:27:46,829 INFO  L93              Difference]: Finished difference Result 172 states and 336 transitions.
[2022-01-10 07:27:46,839 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 07:27:46,840 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 289
[2022-01-10 07:27:46,841 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 07:27:46,846 INFO  L225             Difference]: With dead ends: 172
[2022-01-10 07:27:46,846 INFO  L226             Difference]: Without dead ends: 86
[2022-01-10 07:27:46,850 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 07:27:46,852 INFO  L933         BasicCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 07:27:46,852 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 07:27:46,863 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2022-01-10 07:27:46,886 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86.
[2022-01-10 07:27:46,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2022-01-10 07:27:46,888 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 141 transitions.
[2022-01-10 07:27:46,889 INFO  L78                 Accepts]: Start accepts. Automaton has 86 states and 141 transitions. Word has length 289
[2022-01-10 07:27:46,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 07:27:46,889 INFO  L470      AbstractCegarLoop]: Abstraction has 86 states and 141 transitions.
[2022-01-10 07:27:46,890 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52)
[2022-01-10 07:27:46,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 86 states and 141 transitions.
[2022-01-10 07:27:46,893 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 290
[2022-01-10 07:27:46,894 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 07:27:46,894 INFO  L514         BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:46,905 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0
[2022-01-10 07:27:47,103 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2022-01-10 07:27:47,103 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 07:27:47,104 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 07:27:47,104 INFO  L85        PathProgramCache]: Analyzing trace with hash 1263147558, now seen corresponding path program 1 times
[2022-01-10 07:27:47,105 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 07:27:47,105 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122591261]
[2022-01-10 07:27:47,105 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 07:27:47,105 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 07:27:47,106 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 07:27:47,107 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 07:27:47,128 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-01-10 07:27:47,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 07:27:47,243 INFO  L263         TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 98 conjunts are in the unsatisfiable core
[2022-01-10 07:27:47,253 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 07:27:57,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 925 proven. 1302 refuted. 0 times theorem prover too weak. 3077 trivial. 0 not checked.
[2022-01-10 07:27:57,789 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 07:28:13,333 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 07:28:13,333 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122591261]
[2022-01-10 07:28:13,334 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122591261] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 07:28:13,334 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [79374245]
[2022-01-10 07:28:13,334 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 07:28:13,334 INFO  L168          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2022-01-10 07:28:13,334 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2022-01-10 07:28:13,336 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2022-01-10 07:28:13,344 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2022-01-10 07:28:13,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 07:28:13,564 INFO  L263         TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 109 conjunts are in the unsatisfiable core
[2022-01-10 07:28:13,571 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 07:28:28,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 859 proven. 1308 refuted. 0 times theorem prover too weak. 3137 trivial. 0 not checked.
[2022-01-10 07:28:28,527 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 07:28:53,827 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [79374245] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 07:28:53,827 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-10 07:28:53,827 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 40] total 58
[2022-01-10 07:28:53,828 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143480171]
[2022-01-10 07:28:53,828 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-10 07:28:53,829 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 58 states
[2022-01-10 07:28:53,829 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 07:28:53,830 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants.
[2022-01-10 07:28:53,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=2263, Invalid=12017, Unknown=0, NotChecked=0, Total=14280
[2022-01-10 07:28:53,835 INFO  L87              Difference]: Start difference. First operand 86 states and 141 transitions. Second operand  has 58 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 25 states have internal predecessors, (49), 46 states have call successors, (83), 2 states have call predecessors, (83), 3 states have return successors, (84), 43 states have call predecessors, (84), 46 states have call successors, (84)
[2022-01-10 07:28:56,107 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 07:28:56,108 INFO  L93              Difference]: Finished difference Result 110 states and 172 transitions.
[2022-01-10 07:28:56,108 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. 
[2022-01-10 07:28:56,109 INFO  L78                 Accepts]: Start accepts. Automaton has  has 58 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 25 states have internal predecessors, (49), 46 states have call successors, (83), 2 states have call predecessors, (83), 3 states have return successors, (84), 43 states have call predecessors, (84), 46 states have call successors, (84) Word has length 289
[2022-01-10 07:28:56,110 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 07:28:56,111 INFO  L225             Difference]: With dead ends: 110
[2022-01-10 07:28:56,111 INFO  L226             Difference]: Without dead ends: 94
[2022-01-10 07:28:56,114 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 1058 GetRequests, 936 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5786 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=2532, Invalid=12720, Unknown=0, NotChecked=0, Total=15252
[2022-01-10 07:28:56,117 INFO  L933         BasicCegarLoop]: 81 mSDtfsCounter, 52 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 436 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-01-10 07:28:56,117 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 1292 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 657 Invalid, 0 Unknown, 436 Unchecked, 0.9s Time]
[2022-01-10 07:28:56,118 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2022-01-10 07:28:56,135 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2022-01-10 07:28:56,136 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 38 states have internal predecessors, (44), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2022-01-10 07:28:56,137 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 152 transitions.
[2022-01-10 07:28:56,138 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 152 transitions. Word has length 289
[2022-01-10 07:28:56,148 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 07:28:56,148 INFO  L470      AbstractCegarLoop]: Abstraction has 94 states and 152 transitions.
[2022-01-10 07:28:56,149 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 58 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 25 states have internal predecessors, (49), 46 states have call successors, (83), 2 states have call predecessors, (83), 3 states have return successors, (84), 43 states have call predecessors, (84), 46 states have call successors, (84)
[2022-01-10 07:28:56,149 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 152 transitions.
[2022-01-10 07:28:56,160 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 290
[2022-01-10 07:28:56,160 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 07:28:56,160 INFO  L514         BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:28:56,173 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-01-10 07:28:56,364 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2022-01-10 07:28:56,561 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2022-01-10 07:28:56,561 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 07:28:56,562 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 07:28:56,562 INFO  L85        PathProgramCache]: Analyzing trace with hash 1129134052, now seen corresponding path program 1 times
[2022-01-10 07:28:56,562 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 07:28:56,562 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317958008]
[2022-01-10 07:28:56,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 07:28:56,563 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 07:28:56,563 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 07:28:56,571 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 07:28:56,578 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-01-10 07:28:56,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 07:28:56,705 INFO  L263         TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 154 conjunts are in the unsatisfiable core
[2022-01-10 07:28:56,710 INFO  L286         TraceCheckSpWp]: Computing forward predicates...