/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/nla-digbench-scaling/geo1-ll_valuebound5.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 03:14:29,143 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 03:14:29,145 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 03:14:29,220 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 03:14:29,220 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 03:14:29,223 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 03:14:29,225 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2022-01-10 03:14:29,230 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 03:14:29,231 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 03:14:29,232 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 03:14:29,233 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 03:14:29,233 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 03:14:29,234 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 03:14:29,235 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 03:14:29,236 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 03:14:29,236 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 03:14:29,238 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 03:14:29,242 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 03:14:29,247 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 03:14:29,251 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 03:14:29,254 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 03:14:29,255 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 03:14:29,261 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-01-10 03:14:29,261 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 03:14:29,262 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 03:14:29,262 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 03:14:29,263 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 03:14:29,263 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 03:14:29,263 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 03:14:29,264 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 03:14:29,265 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 03:14:29,265 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 03:14:29,265 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 03:14:29,266 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 03:14:29,266 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 03:14:29,266 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 03:14:29,267 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 03:14:29,268 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 03:14:29,270 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 03:14:29,302 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 03:14:29,303 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 03:14:29,303 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 03:14:29,303 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 03:14:29,304 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-01-10 03:14:29,304 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-01-10 03:14:29,304 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 03:14:29,305 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 03:14:29,305 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 03:14:29,305 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 03:14:29,305 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 03:14:29,306 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 03:14:29,307 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 03:14:29,307 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 03:14:29,307 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 03:14:29,307 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 03:14:29,307 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 03:14:29,308 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 03:14:29,308 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 03:14:29,308 INFO  L138        SettingsManager]:  * Trace refinement strategy=WOLF
[2022-01-10 03:14:29,309 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2022-01-10 03:14:29,309 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 03:14:29,309 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 03:14:29,309 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 03:14:29,309 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 03:14:29,309 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 03:14:29,518 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 03:14:29,539 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 03:14:29,541 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 03:14:29,542 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 03:14:29,551 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 03:14:29,553 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c
[2022-01-10 03:14:29,608 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf82876c/326b58b42748460d9a20a0b243e32249/FLAG8c68139e9
[2022-01-10 03:14:29,995 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 03:14:29,996 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c
[2022-01-10 03:14:30,001 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf82876c/326b58b42748460d9a20a0b243e32249/FLAG8c68139e9
[2022-01-10 03:14:30,019 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf82876c/326b58b42748460d9a20a0b243e32249
[2022-01-10 03:14:30,021 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 03:14:30,025 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-01-10 03:14:30,026 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 03:14:30,026 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 03:14:30,029 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 03:14:30,030 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,031 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c49fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30, skipping insertion in model container
[2022-01-10 03:14:30,031 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,037 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 03:14:30,050 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 03:14:30,181 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c[546,559]
[2022-01-10 03:14:30,204 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 03:14:30,214 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 03:14:30,228 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound5.c[546,559]
[2022-01-10 03:14:30,245 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 03:14:30,260 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 03:14:30,260 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30 WrapperNode
[2022-01-10 03:14:30,260 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 03:14:30,262 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 03:14:30,263 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 03:14:30,263 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 03:14:30,268 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,275 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,289 INFO  L137                Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40
[2022-01-10 03:14:30,290 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 03:14:30,291 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 03:14:30,291 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 03:14:30,291 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 03:14:30,297 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,298 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,307 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,307 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,320 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,323 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,324 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,326 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 03:14:30,326 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 03:14:30,327 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 03:14:30,327 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 03:14:30,330 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (1/1) ...
[2022-01-10 03:14:30,336 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 03:14:30,346 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 03:14:30,360 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 03:14:30,389 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 03:14:30,408 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 03:14:30,409 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 03:14:30,409 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-01-10 03:14:30,409 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-01-10 03:14:30,409 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 03:14:30,409 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 03:14:30,409 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-01-10 03:14:30,409 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-01-10 03:14:30,462 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 03:14:30,463 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 03:14:30,716 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 03:14:30,721 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 03:14:30,722 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-10 03:14:30,723 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:14:30 BoogieIcfgContainer
[2022-01-10 03:14:30,723 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 03:14:30,724 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 03:14:30,725 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 03:14:30,727 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 03:14:30,727 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:14:30" (1/3) ...
[2022-01-10 03:14:30,728 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed005b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:14:30, skipping insertion in model container
[2022-01-10 03:14:30,728 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:30" (2/3) ...
[2022-01-10 03:14:30,728 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed005b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:14:30, skipping insertion in model container
[2022-01-10 03:14:30,728 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:14:30" (3/3) ...
[2022-01-10 03:14:30,729 INFO  L111   eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound5.c
[2022-01-10 03:14:30,733 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 03:14:30,734 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 03:14:30,771 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 03:14:30,781 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 03:14:30,782 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 03:14:30,795 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 27 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-01-10 03:14:30,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2022-01-10 03:14:30,827 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:14:30,828 INFO  L514         BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:14:30,828 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:14:30,832 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:14:30,832 INFO  L85        PathProgramCache]: Analyzing trace with hash -439363615, now seen corresponding path program 1 times
[2022-01-10 03:14:30,843 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:14:30,843 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906983480]
[2022-01-10 03:14:30,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:14:30,844 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:14:30,844 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:14:30,865 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 03:14:30,887 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 03:14:30,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:14:30,978 INFO  L263         TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-01-10 03:14:30,982 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:14:31,109 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-01-10 03:14:31,109 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 03:14:31,110 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 03:14:31,110 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906983480]
[2022-01-10 03:14:31,111 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906983480] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 03:14:31,111 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 03:14:31,111 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 03:14:31,113 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317242174]
[2022-01-10 03:14:31,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 03:14:31,119 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 03:14:31,120 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 03:14:31,151 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 03:14:31,152 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 03:14:31,154 INFO  L87              Difference]: Start difference. First operand  has 27 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2022-01-10 03:14:31,174 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 03:14:31,174 INFO  L93              Difference]: Finished difference Result 51 states and 72 transitions.
[2022-01-10 03:14:31,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 03:14:31,176 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29
[2022-01-10 03:14:31,176 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 03:14:31,192 INFO  L225             Difference]: With dead ends: 51
[2022-01-10 03:14:31,192 INFO  L226             Difference]: Without dead ends: 23
[2022-01-10 03:14:31,195 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 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 03:14:31,198 INFO  L933         BasicCegarLoop]: 31 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, 31 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 03:14:31,198 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 03:14:31,216 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2022-01-10 03:14:31,245 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2022-01-10 03:14:31,247 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-01-10 03:14:31,249 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2022-01-10 03:14:31,250 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 29
[2022-01-10 03:14:31,250 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 03:14:31,250 INFO  L470      AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2022-01-10 03:14:31,251 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)
[2022-01-10 03:14:31,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2022-01-10 03:14:31,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2022-01-10 03:14:31,253 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:14:31,253 INFO  L514         BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:14:31,263 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-01-10 03:14:31,463 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 03:14:31,464 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:14:31,465 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:14:31,465 INFO  L85        PathProgramCache]: Analyzing trace with hash 1976149669, now seen corresponding path program 1 times
[2022-01-10 03:14:31,465 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:14:31,466 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964229187]
[2022-01-10 03:14:31,466 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:14:31,466 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:14:31,466 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:14:31,468 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 03:14:31,469 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 03:14:31,524 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:14:31,529 INFO  L263         TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core
[2022-01-10 03:14:31,532 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:14:31,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2022-01-10 03:14:31,850 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 03:14:32,551 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-01-10 03:14:32,552 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 03:14:32,552 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964229187]
[2022-01-10 03:14:32,552 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964229187] provided 1 perfect and 1 imperfect interpolant sequences
[2022-01-10 03:14:32,553 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-01-10 03:14:32,553 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2022-01-10 03:14:32,553 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585537616]
[2022-01-10 03:14:32,553 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 03:14:32,554 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 03:14:32,554 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 03:14:32,555 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 03:14:32,555 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132
[2022-01-10 03:14:32,556 INFO  L87              Difference]: Start difference. First operand 23 states and 27 transitions. Second operand  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2022-01-10 03:14:34,832 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:14:35,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 03:14:35,340 INFO  L93              Difference]: Finished difference Result 33 states and 38 transitions.
[2022-01-10 03:14:35,356 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 03:14:35,357 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29
[2022-01-10 03:14:35,357 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 03:14:35,358 INFO  L225             Difference]: With dead ends: 33
[2022-01-10 03:14:35,358 INFO  L226             Difference]: Without dead ends: 31
[2022-01-10 03:14:35,359 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156
[2022-01-10 03:14:35,360 INFO  L933         BasicCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2022-01-10 03:14:35,360 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 87 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time]
[2022-01-10 03:14:35,361 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2022-01-10 03:14:35,368 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29.
[2022-01-10 03:14:35,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 20 states have internal predecessors, (20), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6)
[2022-01-10 03:14:35,369 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions.
[2022-01-10 03:14:35,369 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 29
[2022-01-10 03:14:35,370 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 03:14:35,370 INFO  L470      AbstractCegarLoop]: Abstraction has 29 states and 33 transitions.
[2022-01-10 03:14:35,370 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2022-01-10 03:14:35,371 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions.
[2022-01-10 03:14:35,371 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2022-01-10 03:14:35,371 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:14:35,372 INFO  L514         BasicCegarLoop]: trace histogram [4, 4, 4, 2, 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 03:14:35,381 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0
[2022-01-10 03:14:35,580 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2022-01-10 03:14:35,580 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:14:35,581 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:14:35,581 INFO  L85        PathProgramCache]: Analyzing trace with hash -900153941, now seen corresponding path program 1 times
[2022-01-10 03:14:35,581 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:14:35,581 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916046854]
[2022-01-10 03:14:35,581 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:14:35,582 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:14:35,582 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:14:35,583 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 03:14:35,584 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-01-10 03:14:35,681 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:14:35,693 INFO  L263         TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core
[2022-01-10 03:14:35,695 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:14:36,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2022-01-10 03:14:36,242 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 03:14:38,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2022-01-10 03:14:38,044 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 03:14:38,044 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916046854]
[2022-01-10 03:14:38,044 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916046854] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 03:14:38,045 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-10 03:14:38,045 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16
[2022-01-10 03:14:38,045 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822799345]
[2022-01-10 03:14:38,045 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-10 03:14:38,046 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-01-10 03:14:38,046 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 03:14:38,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-01-10 03:14:38,047 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240
[2022-01-10 03:14:38,047 INFO  L87              Difference]: Start difference. First operand 29 states and 33 transitions. Second operand  has 16 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 8 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10)
[2022-01-10 03:14:41,707 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:14:43,723 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:14:45,871 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:14:46,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 03:14:46,216 INFO  L93              Difference]: Finished difference Result 43 states and 49 transitions.
[2022-01-10 03:14:46,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-01-10 03:14:46,217 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 8 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 36
[2022-01-10 03:14:46,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 03:14:46,218 INFO  L225             Difference]: With dead ends: 43
[2022-01-10 03:14:46,218 INFO  L226             Difference]: Without dead ends: 33
[2022-01-10 03:14:46,218 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420
[2022-01-10 03:14:46,219 INFO  L933         BasicCegarLoop]: 18 mSDtfsCounter, 30 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 21 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time
[2022-01-10 03:14:46,220 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 162 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 125 Invalid, 3 Unknown, 1 Unchecked, 7.3s Time]
[2022-01-10 03:14:46,221 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2022-01-10 03:14:46,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2022-01-10 03:14:46,227 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 22 states have internal predecessors, (23), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2022-01-10 03:14:46,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions.
[2022-01-10 03:14:46,228 INFO  L78                 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 36
[2022-01-10 03:14:46,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 03:14:46,228 INFO  L470      AbstractCegarLoop]: Abstraction has 33 states and 38 transitions.
[2022-01-10 03:14:46,228 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 8 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10)
[2022-01-10 03:14:46,229 INFO  L276                IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions.
[2022-01-10 03:14:46,229 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2022-01-10 03:14:46,230 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:14:46,230 INFO  L514         BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:14:46,242 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2022-01-10 03:14:46,442 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2022-01-10 03:14:46,443 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:14:46,443 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:14:46,444 INFO  L85        PathProgramCache]: Analyzing trace with hash -852190431, now seen corresponding path program 1 times
[2022-01-10 03:14:46,444 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:14:46,444 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734658940]
[2022-01-10 03:14:46,444 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:14:46,444 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:14:46,445 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:14:46,446 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 03:14:46,448 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 03:14:46,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:14:46,586 INFO  L263         TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-01-10 03:14:46,588 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:14:47,731 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2022-01-10 03:14:47,731 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 03:14:58,306 INFO  L134       CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 24 trivial. 0 not checked.
[2022-01-10 03:14:58,307 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 03:14:58,307 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734658940]
[2022-01-10 03:14:58,308 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734658940] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 03:14:58,308 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-10 03:14:58,308 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14
[2022-01-10 03:14:58,308 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971064685]
[2022-01-10 03:14:58,308 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-10 03:14:58,309 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2022-01-10 03:14:58,309 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 03:14:58,310 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2022-01-10 03:14:58,310 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=145, Unknown=1, NotChecked=0, Total=182
[2022-01-10 03:14:58,310 INFO  L87              Difference]: Start difference. First operand 33 states and 38 transitions. Second operand  has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 11 states have internal predecessors, (26), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10)
[2022-01-10 03:15:09,008 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:15:16,232 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:15:18,476 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:15:20,527 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:15:22,593 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:15:24,621 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:15:25,169 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 03:15:25,169 INFO  L93              Difference]: Finished difference Result 47 states and 55 transitions.
[2022-01-10 03:15:25,196 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-01-10 03:15:25,197 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 11 states have internal predecessors, (26), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 36
[2022-01-10 03:15:25,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 03:15:25,198 INFO  L225             Difference]: With dead ends: 47
[2022-01-10 03:15:25,198 INFO  L226             Difference]: Without dead ends: 45
[2022-01-10 03:15:25,198 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=62, Invalid=241, Unknown=3, NotChecked=0, Total=306
[2022-01-10 03:15:25,199 INFO  L933         BasicCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 20 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time
[2022-01-10 03:15:25,200 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 174 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 156 Invalid, 6 Unknown, 0 Unchecked, 16.8s Time]
[2022-01-10 03:15:25,200 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2022-01-10 03:15:25,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42.
[2022-01-10 03:15:25,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 29 states have internal predecessors, (30), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9)
[2022-01-10 03:15:25,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions.
[2022-01-10 03:15:25,208 INFO  L78                 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 36
[2022-01-10 03:15:25,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 03:15:25,208 INFO  L470      AbstractCegarLoop]: Abstraction has 42 states and 49 transitions.
[2022-01-10 03:15:25,208 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 11 states have internal predecessors, (26), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10)
[2022-01-10 03:15:25,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions.
[2022-01-10 03:15:25,210 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2022-01-10 03:15:25,210 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:15:25,210 INFO  L514         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:15:25,220 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2022-01-10 03:15:25,414 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2022-01-10 03:15:25,414 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:15:25,417 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:15:25,417 INFO  L85        PathProgramCache]: Analyzing trace with hash -721653461, now seen corresponding path program 1 times
[2022-01-10 03:15:25,417 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:15:25,417 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949167464]
[2022-01-10 03:15:25,418 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:15:25,418 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:15:25,418 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:15:25,423 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 03:15:25,424 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2022-01-10 03:15:25,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:15:25,635 INFO  L263         TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjunts are in the unsatisfiable core
[2022-01-10 03:15:25,637 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:15:35,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-01-10 03:15:35,780 INFO  L328         TraceCheckSpWp]: Computing backward predicates...