/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_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 00:48:13,460 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 00:48:13,462 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 00:48:13,522 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 00:48:13,522 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 00:48:13,529 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 00:48:13,530 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 00:48:13,532 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 00:48:13,533 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 00:48:13,533 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-10 00:48:13,534 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-01-10 00:48:13,535 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 00:48:13,536 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 00:48:13,536 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 00:48:13,537 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 00:48:13,538 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 00:48:13,541 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 00:48:13,546 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 00:48:13,554 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 00:48:13,557 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 00:48:13,558 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 00:48:13,561 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 00:48:13,562 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 00:48:13,563 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 00:48:13,565 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 00:48:13,565 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 00:48:13,565 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 00:48:13,566 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 00:48:13,566 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 00:48:13,567 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 00:48:13,568 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 00:48:13,568 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 00:48:13,569 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 00:48:13,569 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 00:48:13,570 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 00:48:13,571 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 00:48:13,574 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 00:48:13,575 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 00:48:13,576 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 00:48:13,576 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 00:48:13,577 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 00:48:13,578 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf
[2022-01-10 00:48:13,612 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 00:48:13,612 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 00:48:13,612 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 00:48:13,612 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 00:48:13,613 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-01-10 00:48:13,613 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-01-10 00:48:13,614 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 00:48:13,615 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 00:48:13,615 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 00:48:13,615 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 00:48:13,616 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 00:48:13,616 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 00:48:13,616 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 00:48:13,616 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 00:48:13,616 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 00:48:13,616 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 00:48:13,617 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 00:48:13,617 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 00:48:13,617 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 00:48:13,617 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 00:48:13,617 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 00:48:13,617 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 00:48:13,617 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 00:48:13,618 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 00:48:13,618 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 00:48:13,618 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 00:48:13,618 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 00:48:13,619 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 00:48:13,619 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 00:48:13,619 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 00:48:13,619 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 00:48:13,849 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 00:48:13,870 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 00:48:13,874 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 00:48:13,874 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 00:48:13,875 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 00:48:13,876 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c
[2022-01-10 00:48:13,927 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f778e6e44/a039f26b2c0b4efa9314dbb65b48c698/FLAG23575aacf
[2022-01-10 00:48:14,348 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 00:48:14,353 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c
[2022-01-10 00:48:14,358 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f778e6e44/a039f26b2c0b4efa9314dbb65b48c698/FLAG23575aacf
[2022-01-10 00:48:14,367 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f778e6e44/a039f26b2c0b4efa9314dbb65b48c698
[2022-01-10 00:48:14,369 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 00:48:14,370 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-01-10 00:48:14,371 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 00:48:14,371 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 00:48:14,376 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 00:48:14,377 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,378 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ffba2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14, skipping insertion in model container
[2022-01-10 00:48:14,378 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,383 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 00:48:14,399 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 00:48:14,583 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-newlib/double_req_bl_1232a.c[1957,1970]
[2022-01-10 00:48:14,587 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 00:48:14,593 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 00:48:14,627 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-newlib/double_req_bl_1232a.c[1957,1970]
[2022-01-10 00:48:14,628 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 00:48:14,641 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 00:48:14,642 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14 WrapperNode
[2022-01-10 00:48:14,643 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 00:48:14,643 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 00:48:14,644 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 00:48:14,644 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 00:48:14,649 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,663 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,683 INFO  L137                Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67
[2022-01-10 00:48:14,683 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 00:48:14,684 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 00:48:14,684 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 00:48:14,684 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 00:48:14,691 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,691 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,696 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,696 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,713 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,715 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,716 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,718 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 00:48:14,718 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 00:48:14,718 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 00:48:14,718 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 00:48:14,723 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (1/1) ...
[2022-01-10 00:48:14,729 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 00:48:14,738 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 00:48:14,752 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 00:48:14,766 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 00:48:14,789 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 00:48:14,790 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-01-10 00:48:14,790 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-01-10 00:48:14,790 INFO  L130     BoogieDeclarations]: Found specification of procedure __fpclassify_double
[2022-01-10 00:48:14,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure __fpclassify_double
[2022-01-10 00:48:14,790 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real
[2022-01-10 00:48:14,790 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 00:48:14,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 00:48:14,790 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-01-10 00:48:14,790 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-10 00:48:14,852 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 00:48:14,854 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 00:48:15,043 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 00:48:15,064 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 00:48:15,064 INFO  L299             CfgBuilder]: Removed 4 assume(true) statements.
[2022-01-10 00:48:15,066 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:48:15 BoogieIcfgContainer
[2022-01-10 00:48:15,066 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 00:48:15,067 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 00:48:15,067 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 00:48:15,070 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 00:48:15,070 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:48:14" (1/3) ...
[2022-01-10 00:48:15,071 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b1c062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:48:15, skipping insertion in model container
[2022-01-10 00:48:15,071 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:48:14" (2/3) ...
[2022-01-10 00:48:15,071 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b1c062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:48:15, skipping insertion in model container
[2022-01-10 00:48:15,071 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:48:15" (3/3) ...
[2022-01-10 00:48:15,072 INFO  L111   eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c
[2022-01-10 00:48:15,076 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 00:48:15,076 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 00:48:15,133 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 00:48:15,142 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 00:48:15,143 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 00:48:15,165 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 31 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 27 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-01-10 00:48:15,169 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-01-10 00:48:15,170 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 00:48:15,170 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 00:48:15,171 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 00:48:15,178 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 00:48:15,178 INFO  L85        PathProgramCache]: Analyzing trace with hash -1634587165, now seen corresponding path program 1 times
[2022-01-10 00:48:15,185 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 00:48:15,186 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640147804]
[2022-01-10 00:48:15,186 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 00:48:15,187 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 00:48:15,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:15,344 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2022-01-10 00:48:15,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:15,360 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 00:48:15,360 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 00:48:15,361 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640147804]
[2022-01-10 00:48:15,361 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640147804] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 00:48:15,361 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 00:48:15,362 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 00:48:15,363 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192383552]
[2022-01-10 00:48:15,363 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 00:48:15,367 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 00:48:15,367 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 00:48:15,392 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 00:48:15,393 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 00:48:15,395 INFO  L87              Difference]: Start difference. First operand  has 31 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 27 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:15,440 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 00:48:15,440 INFO  L93              Difference]: Finished difference Result 59 states and 86 transitions.
[2022-01-10 00:48:15,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 00:48:15,445 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14
[2022-01-10 00:48:15,445 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 00:48:15,454 INFO  L225             Difference]: With dead ends: 59
[2022-01-10 00:48:15,454 INFO  L226             Difference]: Without dead ends: 28
[2022-01-10 00:48:15,457 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 00:48:15,462 INFO  L933         BasicCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 00:48:15,462 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 71 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 00:48:15,475 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2022-01-10 00:48:15,498 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2022-01-10 00:48:15,499 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-01-10 00:48:15,501 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions.
[2022-01-10 00:48:15,502 INFO  L78                 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 14
[2022-01-10 00:48:15,502 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 00:48:15,502 INFO  L470      AbstractCegarLoop]: Abstraction has 28 states and 36 transitions.
[2022-01-10 00:48:15,503 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:15,504 INFO  L276                IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions.
[2022-01-10 00:48:15,505 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-01-10 00:48:15,506 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 00:48:15,506 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 00:48:15,506 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 00:48:15,507 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 00:48:15,510 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 00:48:15,510 INFO  L85        PathProgramCache]: Analyzing trace with hash -1992797582, now seen corresponding path program 1 times
[2022-01-10 00:48:15,510 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 00:48:15,510 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938541102]
[2022-01-10 00:48:15,511 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 00:48:15,511 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 00:48:15,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:15,614 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2022-01-10 00:48:15,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:15,669 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 00:48:15,670 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 00:48:15,671 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938541102]
[2022-01-10 00:48:15,671 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938541102] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 00:48:15,671 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 00:48:15,672 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 00:48:15,672 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037271234]
[2022-01-10 00:48:15,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 00:48:15,673 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 00:48:15,673 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 00:48:15,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 00:48:15,674 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 00:48:15,674 INFO  L87              Difference]: Start difference. First operand 28 states and 36 transitions. Second operand  has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:15,721 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 00:48:15,721 INFO  L93              Difference]: Finished difference Result 41 states and 51 transitions.
[2022-01-10 00:48:15,722 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 00:48:15,722 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2022-01-10 00:48:15,722 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 00:48:15,724 INFO  L225             Difference]: With dead ends: 41
[2022-01-10 00:48:15,724 INFO  L226             Difference]: Without dead ends: 32
[2022-01-10 00:48:15,724 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 00:48:15,726 INFO  L933         BasicCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 00:48:15,726 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 120 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 00:48:15,728 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2022-01-10 00:48:15,735 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2022-01-10 00:48:15,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2022-01-10 00:48:15,737 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions.
[2022-01-10 00:48:15,738 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 15
[2022-01-10 00:48:15,738 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 00:48:15,739 INFO  L470      AbstractCegarLoop]: Abstraction has 32 states and 41 transitions.
[2022-01-10 00:48:15,740 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:15,740 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions.
[2022-01-10 00:48:15,742 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-01-10 00:48:15,742 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 00:48:15,743 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 00:48:15,743 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 00:48:15,746 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 00:48:15,750 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 00:48:15,751 INFO  L85        PathProgramCache]: Analyzing trace with hash -118167546, now seen corresponding path program 1 times
[2022-01-10 00:48:15,751 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 00:48:15,751 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638172781]
[2022-01-10 00:48:15,754 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 00:48:15,755 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 00:48:15,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:15,809 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2022-01-10 00:48:15,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:15,832 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 00:48:15,832 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 00:48:15,833 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638172781]
[2022-01-10 00:48:15,833 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638172781] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 00:48:15,833 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 00:48:15,833 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 00:48:15,833 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974773536]
[2022-01-10 00:48:15,833 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 00:48:15,834 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 00:48:15,834 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 00:48:15,834 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 00:48:15,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 00:48:15,834 INFO  L87              Difference]: Start difference. First operand 32 states and 41 transitions. Second operand  has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:15,860 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 00:48:15,860 INFO  L93              Difference]: Finished difference Result 45 states and 56 transitions.
[2022-01-10 00:48:15,861 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 00:48:15,861 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16
[2022-01-10 00:48:15,861 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 00:48:15,862 INFO  L225             Difference]: With dead ends: 45
[2022-01-10 00:48:15,862 INFO  L226             Difference]: Without dead ends: 36
[2022-01-10 00:48:15,862 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 00:48:15,863 INFO  L933         BasicCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 00:48:15,864 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 136 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 00:48:15,864 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2022-01-10 00:48:15,869 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32.
[2022-01-10 00:48:15,869 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2022-01-10 00:48:15,870 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions.
[2022-01-10 00:48:15,870 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 16
[2022-01-10 00:48:15,870 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 00:48:15,870 INFO  L470      AbstractCegarLoop]: Abstraction has 32 states and 41 transitions.
[2022-01-10 00:48:15,871 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:15,871 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions.
[2022-01-10 00:48:15,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-01-10 00:48:15,871 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 00:48:15,871 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 00:48:15,871 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-10 00:48:15,872 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 00:48:15,872 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 00:48:15,872 INFO  L85        PathProgramCache]: Analyzing trace with hash -774061834, now seen corresponding path program 1 times
[2022-01-10 00:48:15,872 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 00:48:15,872 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150612544]
[2022-01-10 00:48:15,872 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 00:48:15,873 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 00:48:15,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:15,914 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2022-01-10 00:48:15,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:15,950 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 00:48:15,951 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 00:48:15,951 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150612544]
[2022-01-10 00:48:15,951 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150612544] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 00:48:15,951 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 00:48:15,951 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 00:48:15,951 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173597929]
[2022-01-10 00:48:15,952 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 00:48:15,952 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 00:48:15,952 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 00:48:15,953 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 00:48:15,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 00:48:15,953 INFO  L87              Difference]: Start difference. First operand 32 states and 41 transitions. Second operand  has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:15,991 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 00:48:15,991 INFO  L93              Difference]: Finished difference Result 45 states and 56 transitions.
[2022-01-10 00:48:15,992 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 00:48:15,992 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2022-01-10 00:48:15,992 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 00:48:15,993 INFO  L225             Difference]: With dead ends: 45
[2022-01-10 00:48:15,993 INFO  L226             Difference]: Without dead ends: 36
[2022-01-10 00:48:15,993 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 00:48:15,995 INFO  L933         BasicCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 00:48:15,995 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 136 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 00:48:15,996 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2022-01-10 00:48:15,999 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32.
[2022-01-10 00:48:15,999 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2022-01-10 00:48:16,000 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions.
[2022-01-10 00:48:16,000 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 17
[2022-01-10 00:48:16,000 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 00:48:16,001 INFO  L470      AbstractCegarLoop]: Abstraction has 32 states and 41 transitions.
[2022-01-10 00:48:16,001 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:16,001 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions.
[2022-01-10 00:48:16,001 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-01-10 00:48:16,002 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 00:48:16,002 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 00:48:16,002 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-01-10 00:48:16,002 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 00:48:16,002 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 00:48:16,002 INFO  L85        PathProgramCache]: Analyzing trace with hash 1728168458, now seen corresponding path program 1 times
[2022-01-10 00:48:16,003 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 00:48:16,003 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597420418]
[2022-01-10 00:48:16,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 00:48:16,003 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 00:48:16,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:16,042 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2022-01-10 00:48:16,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 00:48:16,105 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 00:48:16,105 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 00:48:16,105 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597420418]
[2022-01-10 00:48:16,106 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597420418] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 00:48:16,106 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 00:48:16,106 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 00:48:16,106 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984519864]
[2022-01-10 00:48:16,106 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 00:48:16,106 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 00:48:16,107 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 00:48:16,107 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 00:48:16,107 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 00:48:16,107 INFO  L87              Difference]: Start difference. First operand 32 states and 41 transitions. Second operand  has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:16,145 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 00:48:16,145 INFO  L93              Difference]: Finished difference Result 45 states and 56 transitions.
[2022-01-10 00:48:16,146 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 00:48:16,146 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18
[2022-01-10 00:48:16,146 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 00:48:16,147 INFO  L225             Difference]: With dead ends: 45
[2022-01-10 00:48:16,147 INFO  L226             Difference]: Without dead ends: 36
[2022-01-10 00:48:16,147 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 00:48:16,148 INFO  L933         BasicCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 00:48:16,149 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 136 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 00:48:16,149 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2022-01-10 00:48:16,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32.
[2022-01-10 00:48:16,165 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2022-01-10 00:48:16,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions.
[2022-01-10 00:48:16,165 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 18
[2022-01-10 00:48:16,166 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 00:48:16,166 INFO  L470      AbstractCegarLoop]: Abstraction has 32 states and 41 transitions.
[2022-01-10 00:48:16,166 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-10 00:48:16,166 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions.
[2022-01-10 00:48:16,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-01-10 00:48:16,167 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 00:48:16,167 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 00:48:16,167 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-01-10 00:48:16,167 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 00:48:16,167 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 00:48:16,167 INFO  L85        PathProgramCache]: Analyzing trace with hash -79286005, now seen corresponding path program 1 times
[2022-01-10 00:48:16,168 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 00:48:16,168 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612121298]
[2022-01-10 00:48:16,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 00:48:16,168 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 00:48:16,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-01-10 00:48:16,200 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-01-10 00:48:16,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-01-10 00:48:16,243 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-01-10 00:48:16,243 INFO  L628         BasicCegarLoop]: Counterexample is feasible
[2022-01-10 00:48:16,244 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-01-10 00:48:16,245 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-01-10 00:48:16,248 INFO  L732         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2022-01-10 00:48:16,250 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2022-01-10 00:48:16,271 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:48:16 BoogieIcfgContainer
[2022-01-10 00:48:16,271 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-01-10 00:48:16,272 INFO  L158              Benchmark]: Toolchain (without parser) took 1901.58ms. Allocated memory is still 178.3MB. Free memory was 130.4MB in the beginning and 153.0MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 8.0GB.
[2022-01-10 00:48:16,272 INFO  L158              Benchmark]: CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory was 147.4MB in the beginning and 147.3MB in the end (delta: 71.3kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-01-10 00:48:16,273 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 271.48ms. Allocated memory is still 178.3MB. Free memory was 130.2MB in the beginning and 156.7MB in the end (delta: -26.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-01-10 00:48:16,273 INFO  L158              Benchmark]: Boogie Procedure Inliner took 39.92ms. Allocated memory is still 178.3MB. Free memory was 156.7MB in the beginning and 155.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-01-10 00:48:16,274 INFO  L158              Benchmark]: Boogie Preprocessor took 33.50ms. Allocated memory is still 178.3MB. Free memory was 155.1MB in the beginning and 153.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-01-10 00:48:16,274 INFO  L158              Benchmark]: RCFGBuilder took 347.57ms. Allocated memory is still 178.3MB. Free memory was 153.6MB in the beginning and 141.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-01-10 00:48:16,274 INFO  L158              Benchmark]: TraceAbstraction took 1204.15ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 153.0MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 8.0GB.
[2022-01-10 00:48:16,277 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory was 147.4MB in the beginning and 147.3MB in the end (delta: 71.3kB). There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 271.48ms. Allocated memory is still 178.3MB. Free memory was 130.2MB in the beginning and 156.7MB in the end (delta: -26.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 39.92ms. Allocated memory is still 178.3MB. Free memory was 156.7MB in the beginning and 155.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 33.50ms. Allocated memory is still 178.3MB. Free memory was 155.1MB in the beginning and 153.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
 * RCFGBuilder took 347.57ms. Allocated memory is still 178.3MB. Free memory was 153.6MB in the beginning and 141.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
 * TraceAbstraction took 1204.15ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 153.0MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 82]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 77. 
Possible FailurePath: 
[L76]                  double x = 0.0;
[L77]                  double y = -0.0;
[L78]      CALL, EXPR  fmin_double(x, y)
[L48]      CALL, EXPR  __fpclassify_double(x)
           VAL         [\old(x)=0]
[L21]                  __uint32_t msw, lsw;
           VAL         [\old(x)=0, x=0]
[L24]                  ieee_double_shape_type ew_u;
[L25]                  ew_u.value = (x)
[L26]      EXPR        ew_u.parts.msw
[L26]                  (msw) = ew_u.parts.msw
[L27]      EXPR        ew_u.parts.lsw
[L27]                  (lsw) = ew_u.parts.lsw
[L30-L31]  COND FALSE  !((msw == 0x00000000 && lsw == 0x00000000) ||
      (msw == 0x80000000 && lsw == 0x00000000))
           VAL         [\old(x)=0, lsw=4294967297, msw=4293918721, x=0]
[L33-L34]  COND FALSE  !((msw >= 0x00100000 && msw <= 0x7fefffff) ||
           (msw >= 0x80100000 && msw <= 0xffefffff))
           VAL         [\old(x)=0, lsw=4294967297, msw=4293918721, x=0]
[L36-L37]  COND FALSE  !(( msw <= 0x000fffff) ||
           (msw >= 0x80000000 && msw <= 0x800fffff))
           VAL         [\old(x)=0, lsw=4294967297, msw=4293918721, x=0]
[L40-L41]  COND FALSE  !((msw == 0x7ff00000 && lsw == 0x00000000) ||
           (msw == 0xfff00000 && lsw == 0x00000000))
[L44]                  return 0;
           VAL         [\old(x)=0, \result=0, lsw=4294967297, msw=4293918721, x=0]
[L48]      RET, EXPR   __fpclassify_double(x)
           VAL         [\old(x)=0, \old(y)=4294967298, __fpclassify_double(x)=0, x=0, y=4294967298]
[L48]      COND TRUE   __fpclassify_double(x) == 0
[L49]                  return y;
           VAL         [\old(x)=0, \old(y)=4294967298, \result=4294967298, x=0, y=4294967298]
[L78]      RET, EXPR   fmin_double(x, y)
[L78]                  double res = fmin_double(x, y);
[L81]      EXPR        res == -0.0 && __signbit_double(res) == 1
           VAL         [res=4294967298, res == -0.0 && __signbit_double(res) == 1=0, x=0, y=4294967298]
[L81]      COND TRUE   !(res == -0.0 && __signbit_double(res) == 1)
[L82]                  reach_error()
           VAL         [res=4294967298, x=0, y=4294967298]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 599 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 414 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 185 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-01-10 00:48:16,314 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...