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


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 11:48:27,338 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 11:48:27,344 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 11:48:27,362 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 11:48:27,363 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 11:48:27,363 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 11:48:27,364 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 11:48:27,365 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 11:48:27,366 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 11:48:27,367 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 11:48:27,368 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 11:48:27,368 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 11:48:27,382 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 11:48:27,383 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 11:48:27,384 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 11:48:27,384 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 11:48:27,384 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 11:48:27,385 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 11:48:27,386 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 11:48:27,387 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 11:48:27,393 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 11:48:27,394 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 11:48:27,394 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 11:48:27,395 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 11:48:27,396 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 11:48:27,396 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 11:48:27,396 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 11:48:27,396 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 11:48:27,397 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 11:48:27,397 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 11:48:27,397 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 11:48:27,398 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 11:48:27,398 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 11:48:27,399 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 11:48:27,399 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 11:48:27,399 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 11:48:27,399 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 11:48:27,400 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 11:48:27,400 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 11:48:27,400 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 11:48:27,401 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf
[2022-01-10 11:48:27,443 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 11:48:27,443 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 11:48:27,444 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 11:48:27,444 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 11:48:27,444 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 11:48:27,444 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 11:48:27,445 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 11:48:27,445 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 11:48:27,446 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 11:48:27,446 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 11:48:27,446 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 11:48:27,446 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 11:48:27,446 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 11:48:27,446 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 11:48:27,446 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 11:48:27,446 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 11:48:27,446 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 11:48:27,446 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 11:48:27,447 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 11:48:27,447 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 11:48:27,447 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 11:48:27,447 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 11:48:27,447 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 11:48:27,447 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 11:48:27,448 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 11:48:27,448 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_BITWISE
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 11:48:27,593 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 11:48:27,609 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 11:48:27,611 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 11:48:27,611 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 11:48:27,612 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 11:48:27,613 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/rlim_exit.c
[2022-01-10 11:48:27,670 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e691002c/75c2814665704c5f916ae8f3254bede8/FLAG6aec43cb0
[2022-01-10 11:48:28,032 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 11:48:28,032 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/rlim_exit.c
[2022-01-10 11:48:28,036 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e691002c/75c2814665704c5f916ae8f3254bede8/FLAG6aec43cb0
[2022-01-10 11:48:28,044 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e691002c/75c2814665704c5f916ae8f3254bede8
[2022-01-10 11:48:28,046 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 11:48:28,047 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 11:48:28,048 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 11:48:28,048 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 11:48:28,050 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 11:48:28,050 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,051 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4272cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28, skipping insertion in model container
[2022-01-10 11:48:28,051 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,055 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 11:48:28,063 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 11:48:28,154 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/rlim_exit.c[446,459]
[2022-01-10 11:48:28,169 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 11:48:28,181 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 11:48:28,190 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/rlim_exit.c[446,459]
[2022-01-10 11:48:28,193 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 11:48:28,208 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 11:48:28,208 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28 WrapperNode
[2022-01-10 11:48:28,208 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 11:48:28,209 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 11:48:28,209 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 11:48:28,209 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 11:48:28,214 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,220 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,230 INFO  L137                Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54
[2022-01-10 11:48:28,231 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 11:48:28,231 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 11:48:28,231 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 11:48:28,231 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 11:48:28,237 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,237 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,239 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,239 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,242 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,244 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,245 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,246 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 11:48:28,247 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 11:48:28,247 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 11:48:28,247 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 11:48:28,248 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,254 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 11:48:28,263 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 11:48:28,272 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 11:48:28,288 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 11:48:28,306 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 11:48:28,306 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 11:48:28,306 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 11:48:28,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 11:48:28,354 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 11:48:28,355 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 11:48:28,464 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 11:48:28,468 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 11:48:28,468 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-10 11:48:28,469 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:28 BoogieIcfgContainer
[2022-01-10 11:48:28,469 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 11:48:28,470 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 11:48:28,470 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 11:48:28,483 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 11:48:28,485 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:28" (1/1) ...
[2022-01-10 11:48:28,558 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:28 BasicIcfg
[2022-01-10 11:48:28,558 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 11:48:28,559 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 11:48:28,559 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 11:48:28,561 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 11:48:28,561 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:48:28" (1/4) ...
[2022-01-10 11:48:28,561 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6211b4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:28, skipping insertion in model container
[2022-01-10 11:48:28,562 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:28" (2/4) ...
[2022-01-10 11:48:28,562 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6211b4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:28, skipping insertion in model container
[2022-01-10 11:48:28,562 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:28" (3/4) ...
[2022-01-10 11:48:28,562 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6211b4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:48:28, skipping insertion in model container
[2022-01-10 11:48:28,562 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:28" (4/4) ...
[2022-01-10 11:48:28,563 INFO  L111   eAbstractionObserver]: Analyzing ICFG rlim_exit.cTransformedIcfg
[2022-01-10 11:48:28,566 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 11:48:28,566 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 11:48:28,625 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 11:48:28,633 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 11:48:28,633 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 11:48:28,641 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:28,644 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-01-10 11:48:28,644 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 11:48:28,644 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-01-10 11:48:28,645 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 11:48:28,648 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 11:48:28,648 INFO  L85        PathProgramCache]: Analyzing trace with hash -1779385368, now seen corresponding path program 1 times
[2022-01-10 11:48:28,653 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 11:48:28,654 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689045076]
[2022-01-10 11:48:28,654 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 11:48:28,654 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 11:48:28,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 11:48:28,750 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:28,750 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 11:48:28,751 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689045076]
[2022-01-10 11:48:28,752 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689045076] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 11:48:28,752 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 11:48:28,752 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 11:48:28,753 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144421750]
[2022-01-10 11:48:28,755 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 11:48:28,757 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 11:48:28,757 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 11:48:28,782 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 11:48:28,783 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 11:48:28,784 INFO  L87              Difference]: Start difference. First operand  has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:28,805 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 11:48:28,806 INFO  L93              Difference]: Finished difference Result 34 states and 46 transitions.
[2022-01-10 11:48:28,807 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 11:48:28,808 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2022-01-10 11:48:28,808 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 11:48:28,813 INFO  L225             Difference]: With dead ends: 34
[2022-01-10 11:48:28,814 INFO  L226             Difference]: Without dead ends: 14
[2022-01-10 11:48:28,817 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 11:48:28,821 INFO  L933         BasicCegarLoop]: 20 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, 20 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 11:48:28,822 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 11:48:28,834 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2022-01-10 11:48:28,847 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2022-01-10 11:48:28,848 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:28,848 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions.
[2022-01-10 11:48:28,849 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6
[2022-01-10 11:48:28,849 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 11:48:28,850 INFO  L470      AbstractCegarLoop]: Abstraction has 14 states and 16 transitions.
[2022-01-10 11:48:28,850 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:28,851 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2022-01-10 11:48:28,851 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-01-10 11:48:28,851 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 11:48:28,852 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-01-10 11:48:28,852 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 11:48:28,852 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 11:48:28,855 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 11:48:28,855 INFO  L85        PathProgramCache]: Analyzing trace with hash -1779355577, now seen corresponding path program 1 times
[2022-01-10 11:48:28,855 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 11:48:28,856 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991753281]
[2022-01-10 11:48:28,856 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 11:48:28,856 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 11:48:28,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 11:48:28,978 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:28,978 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 11:48:28,978 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991753281]
[2022-01-10 11:48:28,978 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991753281] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 11:48:28,978 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 11:48:28,979 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 11:48:28,979 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837655879]
[2022-01-10 11:48:28,979 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 11:48:28,980 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 11:48:28,980 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 11:48:28,980 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 11:48:28,981 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 11:48:28,981 INFO  L87              Difference]: Start difference. First operand 14 states and 16 transitions. Second operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:28,998 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 11:48:28,998 INFO  L93              Difference]: Finished difference Result 26 states and 30 transitions.
[2022-01-10 11:48:28,999 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 11:48:28,999 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2022-01-10 11:48:28,999 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 11:48:29,000 INFO  L225             Difference]: With dead ends: 26
[2022-01-10 11:48:29,000 INFO  L226             Difference]: Without dead ends: 22
[2022-01-10 11:48:29,004 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 11:48:29,006 INFO  L933         BasicCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 11:48:29,006 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 11:48:29,009 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2022-01-10 11:48:29,014 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15.
[2022-01-10 11:48:29,014 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:29,014 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions.
[2022-01-10 11:48:29,014 INFO  L78                 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6
[2022-01-10 11:48:29,015 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 11:48:29,015 INFO  L470      AbstractCegarLoop]: Abstraction has 15 states and 17 transitions.
[2022-01-10 11:48:29,015 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:29,015 INFO  L276                IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions.
[2022-01-10 11:48:29,017 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-01-10 11:48:29,017 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 11:48:29,018 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 11:48:29,018 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 11:48:29,018 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 11:48:29,019 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 11:48:29,019 INFO  L85        PathProgramCache]: Analyzing trace with hash -1180503675, now seen corresponding path program 1 times
[2022-01-10 11:48:29,019 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 11:48:29,019 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627181678]
[2022-01-10 11:48:29,019 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 11:48:29,020 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 11:48:29,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 11:48:29,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:29,096 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 11:48:29,097 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627181678]
[2022-01-10 11:48:29,097 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627181678] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 11:48:29,097 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839947459]
[2022-01-10 11:48:29,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 11:48:29,098 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 11:48:29,098 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 11:48:29,112 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 11:48:29,114 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-10 11:48:29,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 11:48:29,200 INFO  L263         TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-01-10 11:48:29,203 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 11:48:29,365 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:29,365 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 11:48:29,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:29,452 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [839947459] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 11:48:29,453 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-10 11:48:29,454 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2022-01-10 11:48:29,454 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412573527]
[2022-01-10 11:48:29,454 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-10 11:48:29,456 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-01-10 11:48:29,456 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 11:48:29,457 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-01-10 11:48:29,457 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-10 11:48:29,458 INFO  L87              Difference]: Start difference. First operand 15 states and 17 transitions. Second operand  has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:29,523 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 11:48:29,523 INFO  L93              Difference]: Finished difference Result 43 states and 53 transitions.
[2022-01-10 11:48:29,524 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 11:48:29,524 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2022-01-10 11:48:29,524 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 11:48:29,525 INFO  L225             Difference]: With dead ends: 43
[2022-01-10 11:48:29,525 INFO  L226             Difference]: Without dead ends: 39
[2022-01-10 11:48:29,526 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-01-10 11:48:29,528 INFO  L933         BasicCegarLoop]: 22 mSDtfsCounter, 63 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 11:48:29,529 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 62 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 11:48:29,530 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2022-01-10 11:48:29,536 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2022-01-10 11:48:29,536 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:29,538 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions.
[2022-01-10 11:48:29,539 INFO  L78                 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 13
[2022-01-10 11:48:29,539 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 11:48:29,539 INFO  L470      AbstractCegarLoop]: Abstraction has 39 states and 47 transitions.
[2022-01-10 11:48:29,539 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:29,539 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions.
[2022-01-10 11:48:29,541 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2022-01-10 11:48:29,541 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 11:48:29,541 INFO  L514         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1]
[2022-01-10 11:48:29,564 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-01-10 11:48:29,746 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 11:48:29,746 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 11:48:29,747 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 11:48:29,747 INFO  L85        PathProgramCache]: Analyzing trace with hash -614286137, now seen corresponding path program 2 times
[2022-01-10 11:48:29,747 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 11:48:29,747 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657966492]
[2022-01-10 11:48:29,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 11:48:29,747 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 11:48:29,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 11:48:29,884 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:29,884 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 11:48:29,885 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657966492]
[2022-01-10 11:48:29,886 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657966492] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 11:48:29,886 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587835991]
[2022-01-10 11:48:29,886 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-01-10 11:48:29,886 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 11:48:29,886 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 11:48:29,887 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 11:48:29,888 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-10 11:48:29,966 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-01-10 11:48:29,966 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-10 11:48:29,967 INFO  L263         TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-01-10 11:48:29,970 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 11:48:39,193 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:39,193 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 11:48:40,004 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:40,005 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587835991] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 11:48:40,005 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-10 11:48:40,005 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16
[2022-01-10 11:48:40,005 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071646860]
[2022-01-10 11:48:40,005 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-10 11:48:40,005 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-01-10 11:48:40,005 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 11:48:40,006 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-01-10 11:48:40,006 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=161, Unknown=1, NotChecked=0, Total=240
[2022-01-10 11:48:40,006 INFO  L87              Difference]: Start difference. First operand 39 states and 47 transitions. Second operand  has 16 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:46,643 WARN  L228               SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-01-10 11:48:56,483 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 11:48:56,483 INFO  L93              Difference]: Finished difference Result 83 states and 105 transitions.
[2022-01-10 11:48:56,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-01-10 11:48:56,483 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34
[2022-01-10 11:48:56,484 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 11:48:56,484 INFO  L225             Difference]: With dead ends: 83
[2022-01-10 11:48:56,484 INFO  L226             Difference]: Without dead ends: 79
[2022-01-10 11:48:56,485 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=149, Invalid=268, Unknown=3, NotChecked=0, Total=420
[2022-01-10 11:48:56,485 INFO  L933         BasicCegarLoop]: 38 mSDtfsCounter, 140 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2022-01-10 11:48:56,485 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 238 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 18 Unchecked, 1.0s Time]
[2022-01-10 11:48:56,486 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2022-01-10 11:48:56,490 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79.
[2022-01-10 11:48:56,491 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 79 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 78 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:56,492 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions.
[2022-01-10 11:48:56,492 INFO  L78                 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 34
[2022-01-10 11:48:56,492 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 11:48:56,492 INFO  L470      AbstractCegarLoop]: Abstraction has 79 states and 97 transitions.
[2022-01-10 11:48:56,492 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 11:48:56,492 INFO  L276                IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions.
[2022-01-10 11:48:56,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2022-01-10 11:48:56,493 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 11:48:56,493 INFO  L514         BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1]
[2022-01-10 11:48:56,513 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-01-10 11:48:56,713 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2022-01-10 11:48:56,713 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 11:48:56,714 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 11:48:56,714 INFO  L85        PathProgramCache]: Analyzing trace with hash -409896827, now seen corresponding path program 3 times
[2022-01-10 11:48:56,714 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 11:48:56,714 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130183632]
[2022-01-10 11:48:56,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 11:48:56,714 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 11:48:56,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 11:48:56,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 11:48:56,935 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 11:48:56,935 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130183632]
[2022-01-10 11:48:56,935 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130183632] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 11:48:56,935 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725553640]
[2022-01-10 11:48:56,935 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-01-10 11:48:56,935 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 11:48:56,935 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 11:48:56,936 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 11:48:56,937 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-10 11:48:57,550 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s)
[2022-01-10 11:48:57,550 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-10 11:48:57,553 INFO  L263         TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 39 conjunts are in the unsatisfiable core
[2022-01-10 11:48:57,557 INFO  L286         TraceCheckSpWp]: Computing forward predicates...