/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound50.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 03:00:43,012 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 03:00:43,013 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 03:00:43,064 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 03:00:43,065 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 03:00:43,065 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 03:00:43,066 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2022-01-10 03:00:43,069 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 03:00:43,070 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 03:00:43,071 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 03:00:43,071 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 03:00:43,072 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 03:00:43,073 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 03:00:43,073 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 03:00:43,074 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 03:00:43,075 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 03:00:43,077 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 03:00:43,078 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 03:00:43,079 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 03:00:43,079 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 03:00:43,080 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 03:00:43,082 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-01-10 03:00:43,082 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 03:00:43,082 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 03:00:43,083 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 03:00:43,083 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 03:00:43,083 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 03:00:43,084 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 03:00:43,084 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 03:00:43,085 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 03:00:43,085 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 03:00:43,085 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 03:00:43,086 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 03:00:43,086 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 03:00:43,086 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-10 03:00:43,087 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 03:00:43,088 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2022-01-10 03:00:43,110 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 03:00:43,111 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 03:00:43,111 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 03:00:43,111 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 03:00:43,112 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-01-10 03:00:43,112 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-01-10 03:00:43,113 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 03:00:43,113 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 03:00:43,113 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 03:00:43,113 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 03:00:43,114 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 03:00:43,115 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 03:00:43,115 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 03:00:43,115 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 03:00:43,115 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 03:00:43,115 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 03:00:43,115 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 03:00:43,115 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 03:00:43,115 INFO  L138        SettingsManager]:  * Trace refinement strategy=WOLF
[2022-01-10 03:00:43,115 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2022-01-10 03:00:43,115 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 03:00:43,116 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 03:00:43,116 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 03:00:43,116 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 03:00:43,116 INFO  L138        SettingsManager]:  * Logic for external solver=AUFBV
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 03:00:43,279 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 03:00:43,298 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 03:00:43,300 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 03:00:43,300 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 03:00:43,302 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 03:00:43,302 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound50.c
[2022-01-10 03:00:43,388 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e580bb1cf/d0d4c5e762fa4836929980af070406c0/FLAG19b296a97
[2022-01-10 03:00:43,742 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 03:00:43,743 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound50.c
[2022-01-10 03:00:43,748 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e580bb1cf/d0d4c5e762fa4836929980af070406c0/FLAG19b296a97
[2022-01-10 03:00:44,178 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e580bb1cf/d0d4c5e762fa4836929980af070406c0
[2022-01-10 03:00:44,180 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 03:00:44,181 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-01-10 03:00:44,191 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 03:00:44,192 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 03:00:44,197 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 03:00:44,198 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,198 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a41e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44, skipping insertion in model container
[2022-01-10 03:00:44,198 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,203 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 03:00:44,211 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 03:00:44,320 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound50.c[597,610]
[2022-01-10 03:00:44,332 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 03:00:44,338 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 03:00:44,349 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/bresenham-ll_valuebound50.c[597,610]
[2022-01-10 03:00:44,374 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 03:00:44,386 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 03:00:44,387 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44 WrapperNode
[2022-01-10 03:00:44,387 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 03:00:44,389 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 03:00:44,389 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 03:00:44,389 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 03:00:44,394 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,400 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,416 INFO  L137                Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49
[2022-01-10 03:00:44,416 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 03:00:44,417 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 03:00:44,417 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 03:00:44,417 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 03:00:44,422 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,422 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,432 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,432 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,442 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,444 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,445 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,446 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 03:00:44,447 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 03:00:44,447 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 03:00:44,447 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 03:00:44,449 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (1/1) ...
[2022-01-10 03:00:44,454 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 03:00:44,463 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 03:00:44,473 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-01-10 03:00:44,491 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-01-10 03:00:44,523 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 03:00:44,523 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 03:00:44,523 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-01-10 03:00:44,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-01-10 03:00:44,523 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 03:00:44,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 03:00:44,523 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-01-10 03:00:44,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-01-10 03:00:44,588 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 03:00:44,590 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 03:00:44,989 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 03:00:44,998 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 03:00:44,998 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-10 03:00:44,999 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:00:44 BoogieIcfgContainer
[2022-01-10 03:00:44,999 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 03:00:45,000 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 03:00:45,001 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 03:00:45,003 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 03:00:45,003 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:00:44" (1/3) ...
[2022-01-10 03:00:45,004 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad249b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:00:45, skipping insertion in model container
[2022-01-10 03:00:45,004 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:00:44" (2/3) ...
[2022-01-10 03:00:45,004 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad249b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:00:45, skipping insertion in model container
[2022-01-10 03:00:45,004 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:00:44" (3/3) ...
[2022-01-10 03:00:45,005 INFO  L111   eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound50.c
[2022-01-10 03:00:45,008 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 03:00:45,008 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 03:00:45,038 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 03:00:45,047 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-01-10 03:00:45,047 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 03:00:45,057 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-01-10 03:00:45,060 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-01-10 03:00:45,060 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:00:45,061 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:00:45,061 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:00:45,064 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:00:45,064 INFO  L85        PathProgramCache]: Analyzing trace with hash 689891435, now seen corresponding path program 1 times
[2022-01-10 03:00:45,072 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:00:45,072 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200648848]
[2022-01-10 03:00:45,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:00:45,073 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:00:45,073 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:00:45,075 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 03:00:45,076 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-01-10 03:00:45,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:00:45,154 INFO  L263         TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-01-10 03:00:45,158 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:00:45,232 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-01-10 03:00:45,233 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 03:00:45,233 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 03:00:45,234 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200648848]
[2022-01-10 03:00:45,234 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200648848] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 03:00:45,234 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 03:00:45,235 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 03:00:45,236 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258838830]
[2022-01-10 03:00:45,239 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 03:00:45,242 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 03:00:45,244 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 03:00:45,269 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 03:00:45,269 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 03:00:45,271 INFO  L87              Difference]: Start difference. First operand  has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2022-01-10 03:00:45,285 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 03:00:45,285 INFO  L93              Difference]: Finished difference Result 51 states and 68 transitions.
[2022-01-10 03:00:45,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 03:00:45,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19
[2022-01-10 03:00:45,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 03:00:45,292 INFO  L225             Difference]: With dead ends: 51
[2022-01-10 03:00:45,292 INFO  L226             Difference]: Without dead ends: 23
[2022-01-10 03:00:45,294 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 03:00:45,298 INFO  L933         BasicCegarLoop]: 30 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, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 03:00:45,299 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 03:00:45,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2022-01-10 03:00:45,320 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2022-01-10 03:00:45,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-01-10 03:00:45,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions.
[2022-01-10 03:00:45,322 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 19
[2022-01-10 03:00:45,322 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 03:00:45,322 INFO  L470      AbstractCegarLoop]: Abstraction has 23 states and 26 transitions.
[2022-01-10 03:00:45,322 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2022-01-10 03:00:45,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions.
[2022-01-10 03:00:45,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-01-10 03:00:45,323 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:00:45,324 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:00:45,334 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-01-10 03:00:45,539 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2022-01-10 03:00:45,540 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:00:45,541 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:00:45,541 INFO  L85        PathProgramCache]: Analyzing trace with hash 90086127, now seen corresponding path program 1 times
[2022-01-10 03:00:45,541 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:00:45,541 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119482988]
[2022-01-10 03:00:45,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:00:45,542 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:00:45,542 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:00:45,555 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 03:00:45,556 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-01-10 03:00:45,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:00:45,650 INFO  L263         TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-01-10 03:00:45,653 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:00:46,048 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-01-10 03:00:46,048 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 03:00:46,048 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 03:00:46,048 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119482988]
[2022-01-10 03:00:46,049 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [119482988] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 03:00:46,049 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 03:00:46,049 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2022-01-10 03:00:46,049 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020782322]
[2022-01-10 03:00:46,049 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 03:00:46,050 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-01-10 03:00:46,050 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 03:00:46,051 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-01-10 03:00:46,051 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2022-01-10 03:00:46,051 INFO  L87              Difference]: Start difference. First operand 23 states and 26 transitions. Second operand  has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-01-10 03:00:46,539 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 03:00:46,540 INFO  L93              Difference]: Finished difference Result 39 states and 44 transitions.
[2022-01-10 03:00:46,542 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-01-10 03:00:46,543 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19
[2022-01-10 03:00:46,543 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 03:00:46,545 INFO  L225             Difference]: With dead ends: 39
[2022-01-10 03:00:46,545 INFO  L226             Difference]: Without dead ends: 31
[2022-01-10 03:00:46,545 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2022-01-10 03:00:46,546 INFO  L933         BasicCegarLoop]: 14 mSDtfsCounter, 29 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-01-10 03:00:46,546 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 71 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-01-10 03:00:46,547 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2022-01-10 03:00:46,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30.
[2022-01-10 03:00:46,553 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-01-10 03:00:46,554 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions.
[2022-01-10 03:00:46,554 INFO  L78                 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 19
[2022-01-10 03:00:46,555 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 03:00:46,555 INFO  L470      AbstractCegarLoop]: Abstraction has 30 states and 33 transitions.
[2022-01-10 03:00:46,555 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-01-10 03:00:46,555 INFO  L276                IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions.
[2022-01-10 03:00:46,556 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2022-01-10 03:00:46,556 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:00:46,556 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:00:46,564 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-01-10 03:00:46,756 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2022-01-10 03:00:46,757 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:00:46,757 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:00:46,757 INFO  L85        PathProgramCache]: Analyzing trace with hash -1522625704, now seen corresponding path program 1 times
[2022-01-10 03:00:46,758 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:00:46,758 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872803017]
[2022-01-10 03:00:46,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:00:46,758 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:00:46,758 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:00:46,760 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 03:00:46,762 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-01-10 03:00:46,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:00:46,903 INFO  L263         TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 17 conjunts are in the unsatisfiable core
[2022-01-10 03:00:46,905 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:00:47,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-01-10 03:00:47,924 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 03:01:01,053 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-01-10 03:01:01,054 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 03:01:01,054 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872803017]
[2022-01-10 03:01:01,054 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872803017] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 03:01:01,054 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-10 03:01:01,054 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18
[2022-01-10 03:01:01,054 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732842053]
[2022-01-10 03:01:01,054 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-10 03:01:01,055 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2022-01-10 03:01:01,055 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 03:01:01,055 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2022-01-10 03:01:01,056 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306
[2022-01-10 03:01:01,056 INFO  L87              Difference]: Start difference. First operand 30 states and 33 transitions. Second operand  has 18 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2022-01-10 03:01:09,768 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:01:22,609 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:01:25,028 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:01:36,555 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 03:01:36,555 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 03:01:36,555 INFO  L93              Difference]: Finished difference Result 69 states and 84 transitions.
[2022-01-10 03:01:36,581 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2022-01-10 03:01:36,581 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 28
[2022-01-10 03:01:36,582 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 03:01:36,583 INFO  L225             Difference]: With dead ends: 69
[2022-01-10 03:01:36,583 INFO  L226             Difference]: Without dead ends: 67
[2022-01-10 03:01:36,584 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702
[2022-01-10 03:01:36,585 INFO  L933         BasicCegarLoop]: 17 mSDtfsCounter, 58 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 31 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time
[2022-01-10 03:01:36,585 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 140 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 219 Invalid, 4 Unknown, 42 Unchecked, 19.7s Time]
[2022-01-10 03:01:36,585 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67 states.
[2022-01-10 03:01:36,591 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 40.
[2022-01-10 03:01:36,591 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 29 states have (on average 1.206896551724138) internal successors, (35), 30 states have internal predecessors, (35), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-01-10 03:01:36,592 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions.
[2022-01-10 03:01:36,592 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 28
[2022-01-10 03:01:36,592 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 03:01:36,592 INFO  L470      AbstractCegarLoop]: Abstraction has 40 states and 46 transitions.
[2022-01-10 03:01:36,592 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2022-01-10 03:01:36,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions.
[2022-01-10 03:01:36,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2022-01-10 03:01:36,593 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:01:36,593 INFO  L514         BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:01:36,606 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2022-01-10 03:01:36,804 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2022-01-10 03:01:36,805 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:01:36,805 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:01:36,805 INFO  L85        PathProgramCache]: Analyzing trace with hash 2046310628, now seen corresponding path program 1 times
[2022-01-10 03:01:36,806 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:01:36,806 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356910079]
[2022-01-10 03:01:36,806 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:01:36,806 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:01:36,806 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:01:36,807 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 03:01:36,808 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-01-10 03:01:36,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:01:36,965 INFO  L263         TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 11 conjunts are in the unsatisfiable core
[2022-01-10 03:01:36,967 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:01:37,512 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-01-10 03:01:37,512 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 03:01:38,087 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-01-10 03:01:38,087 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-01-10 03:01:38,088 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356910079]
[2022-01-10 03:01:38,088 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [356910079] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 03:01:38,088 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-10 03:01:38,088 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14
[2022-01-10 03:01:38,088 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234492467]
[2022-01-10 03:01:38,088 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-10 03:01:38,088 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2022-01-10 03:01:38,089 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-01-10 03:01:38,089 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2022-01-10 03:01:38,089 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182
[2022-01-10 03:01:38,089 INFO  L87              Difference]: Start difference. First operand 40 states and 46 transitions. Second operand  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 12 states have internal predecessors, (33), 7 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8)
[2022-01-10 03:01:38,433 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 03:01:38,433 INFO  L93              Difference]: Finished difference Result 52 states and 59 transitions.
[2022-01-10 03:01:38,452 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-01-10 03:01:38,452 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 12 states have internal predecessors, (33), 7 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) Word has length 35
[2022-01-10 03:01:38,453 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 03:01:38,453 INFO  L225             Difference]: With dead ends: 52
[2022-01-10 03:01:38,453 INFO  L226             Difference]: Without dead ends: 44
[2022-01-10 03:01:38,454 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240
[2022-01-10 03:01:38,454 INFO  L933         BasicCegarLoop]: 20 mSDtfsCounter, 5 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-01-10 03:01:38,455 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 124 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 20 Unchecked, 0.3s Time]
[2022-01-10 03:01:38,455 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2022-01-10 03:01:38,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2022-01-10 03:01:38,464 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 32 states have (on average 1.1875) internal successors, (38), 33 states have internal predecessors, (38), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-01-10 03:01:38,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions.
[2022-01-10 03:01:38,465 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 35
[2022-01-10 03:01:38,465 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 03:01:38,465 INFO  L470      AbstractCegarLoop]: Abstraction has 44 states and 51 transitions.
[2022-01-10 03:01:38,465 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 12 states have internal predecessors, (33), 7 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8)
[2022-01-10 03:01:38,465 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions.
[2022-01-10 03:01:38,466 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2022-01-10 03:01:38,466 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 03:01:38,466 INFO  L514         BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 03:01:38,480 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2022-01-10 03:01:38,678 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2022-01-10 03:01:38,679 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 03:01:38,681 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 03:01:38,681 INFO  L85        PathProgramCache]: Analyzing trace with hash 1035193378, now seen corresponding path program 1 times
[2022-01-10 03:01:38,682 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-01-10 03:01:38,682 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812474685]
[2022-01-10 03:01:38,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 03:01:38,682 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-01-10 03:01:38,682 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2022-01-10 03:01:38,683 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-01-10 03:01:38,687 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2022-01-10 03:01:38,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 03:01:38,893 INFO  L263         TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 24 conjunts are in the unsatisfiable core
[2022-01-10 03:01:38,895 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 03:01:46,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-01-10 03:01:46,586 INFO  L328         TraceCheckSpWp]: Computing backward predicates...