/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/array-patterns/array13_pattern.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 15:37:10,733 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 15:37:10,734 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 15:37:10,786 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 15:37:10,787 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 15:37:10,789 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 15:37:10,791 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 15:37:10,794 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 15:37:10,795 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 15:37:10,799 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 15:37:10,801 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 15:37:10,801 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 15:37:10,803 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 15:37:10,804 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 15:37:10,807 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 15:37:10,807 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 15:37:10,808 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 15:37:10,810 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 15:37:10,815 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 15:37:10,816 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 15:37:10,817 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 15:37:10,818 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 15:37:10,819 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 15:37:10,825 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 15:37:10,825 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 15:37:10,825 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 15:37:10,826 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 15:37:10,827 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 15:37:10,827 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 15:37:10,827 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 15:37:10,828 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 15:37:10,829 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 15:37:10,830 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 15:37:10,831 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 15:37:10,831 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 15:37:10,832 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 15:37:10,832 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 15:37:10,832 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 15:37:10,833 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 15:37:10,833 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 15:37:10,836 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf
[2022-01-10 15:37:10,866 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 15:37:10,866 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 15:37:10,867 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 15:37:10,867 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 15:37:10,868 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 15:37:10,868 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 15:37:10,868 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 15:37:10,868 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 15:37:10,868 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 15:37:10,868 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 15:37:10,869 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 15:37:10,869 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 15:37:10,869 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 15:37:10,869 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 15:37:10,869 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 15:37:10,870 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 15:37:10,870 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 15:37:10,870 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 15:37:10,870 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 15:37:10,870 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 15:37:10,870 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 15:37:10,871 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 15:37:10,871 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 15:37:10,872 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 15:37:10,872 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 15:37:10,872 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 15:37:10,872 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 15:37:10,872 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 15:37:10,872 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 15:37:10,872 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 15:37:10,872 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 15:37:10,873 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 15:37:10,873 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 15:37:10,874 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_LAZY
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 15:37:11,099 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 15:37:11,128 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 15:37:11,130 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 15:37:11,130 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 15:37:11,131 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 15:37:11,132 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array13_pattern.c
[2022-01-10 15:37:11,180 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbd637755/45246fc4c4db48739641f562628337c6/FLAG7c55675b2
[2022-01-10 15:37:11,581 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 15:37:11,581 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array13_pattern.c
[2022-01-10 15:37:11,586 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbd637755/45246fc4c4db48739641f562628337c6/FLAG7c55675b2
[2022-01-10 15:37:11,595 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbd637755/45246fc4c4db48739641f562628337c6
[2022-01-10 15:37:11,597 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 15:37:11,598 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 15:37:11,600 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 15:37:11,600 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 15:37:11,602 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 15:37:11,603 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,603 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34808588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11, skipping insertion in model container
[2022-01-10 15:37:11,604 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,609 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 15:37:11,620 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 15:37:11,747 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array13_pattern.c[1342,1355]
[2022-01-10 15:37:11,782 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 15:37:11,789 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 15:37:11,797 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array13_pattern.c[1342,1355]
[2022-01-10 15:37:11,807 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 15:37:11,818 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 15:37:11,818 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11 WrapperNode
[2022-01-10 15:37:11,819 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 15:37:11,819 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 15:37:11,819 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 15:37:11,820 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 15:37:11,826 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,843 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,859 INFO  L137                Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 100
[2022-01-10 15:37:11,859 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 15:37:11,860 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 15:37:11,860 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 15:37:11,860 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 15:37:11,866 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,866 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,869 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,869 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,875 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,878 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,880 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,882 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 15:37:11,883 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 15:37:11,883 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 15:37:11,883 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 15:37:11,884 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (1/1) ...
[2022-01-10 15:37:11,895 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 15:37:11,905 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 15:37:11,919 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 15:37:11,926 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 15:37:11,957 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 15:37:11,957 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 15:37:11,957 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-01-10 15:37:11,957 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-01-10 15:37:11,957 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 15:37:11,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 15:37:11,958 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-10 15:37:11,958 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-01-10 15:37:12,015 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 15:37:12,016 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 15:37:12,457 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 15:37:12,462 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 15:37:12,463 INFO  L299             CfgBuilder]: Removed 5 assume(true) statements.
[2022-01-10 15:37:12,464 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:37:12 BoogieIcfgContainer
[2022-01-10 15:37:12,464 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 15:37:12,465 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 15:37:12,465 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 15:37:12,466 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 15:37:12,468 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:37:12" (1/1) ...
[2022-01-10 15:37:12,589 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:37:12 BasicIcfg
[2022-01-10 15:37:12,589 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 15:37:12,590 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 15:37:12,591 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 15:37:12,593 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 15:37:12,593 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:37:11" (1/4) ...
[2022-01-10 15:37:12,596 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adb642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:37:12, skipping insertion in model container
[2022-01-10 15:37:12,596 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:37:11" (2/4) ...
[2022-01-10 15:37:12,596 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adb642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:37:12, skipping insertion in model container
[2022-01-10 15:37:12,596 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:37:12" (3/4) ...
[2022-01-10 15:37:12,596 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adb642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:37:12, skipping insertion in model container
[2022-01-10 15:37:12,596 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:37:12" (4/4) ...
[2022-01-10 15:37:12,602 INFO  L111   eAbstractionObserver]: Analyzing ICFG array13_pattern.cTransformedIcfg
[2022-01-10 15:37:12,606 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 15:37:12,607 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 15:37:12,656 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 15:37:12,661 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 15:37:12,661 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 15:37:12,673 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:12,678 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-01-10 15:37:12,678 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 15:37:12,679 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 15:37:12,679 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 15:37:12,684 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 15:37:12,684 INFO  L85        PathProgramCache]: Analyzing trace with hash 433608128, now seen corresponding path program 1 times
[2022-01-10 15:37:12,691 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 15:37:12,692 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075084074]
[2022-01-10 15:37:12,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 15:37:12,693 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 15:37:12,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 15:37:12,835 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 15:37:12,835 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 15:37:12,835 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075084074]
[2022-01-10 15:37:12,836 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075084074] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 15:37:12,836 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 15:37:12,837 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 15:37:12,838 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533965689]
[2022-01-10 15:37:12,839 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 15:37:12,842 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 15:37:12,842 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 15:37:12,863 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 15:37:12,864 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 15:37:12,866 INFO  L87              Difference]: Start difference. First operand  has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:12,882 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 15:37:12,882 INFO  L93              Difference]: Finished difference Result 55 states and 84 transitions.
[2022-01-10 15:37:12,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 15:37:12,883 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2022-01-10 15:37:12,884 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 15:37:12,889 INFO  L225             Difference]: With dead ends: 55
[2022-01-10 15:37:12,889 INFO  L226             Difference]: Without dead ends: 25
[2022-01-10 15:37:12,891 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 15:37:12,893 INFO  L933         BasicCegarLoop]: 34 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, 34 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 15:37:12,899 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 15:37:12,914 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2022-01-10 15:37:12,922 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2022-01-10 15:37:12,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:12,923 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions.
[2022-01-10 15:37:12,924 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 11
[2022-01-10 15:37:12,924 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 15:37:12,925 INFO  L470      AbstractCegarLoop]: Abstraction has 25 states and 30 transitions.
[2022-01-10 15:37:12,925 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:12,925 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions.
[2022-01-10 15:37:12,926 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-01-10 15:37:12,926 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 15:37:12,926 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 15:37:12,926 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 15:37:12,926 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 15:37:12,927 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 15:37:12,927 INFO  L85        PathProgramCache]: Analyzing trace with hash -2092540127, now seen corresponding path program 1 times
[2022-01-10 15:37:12,927 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 15:37:12,927 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710022812]
[2022-01-10 15:37:12,928 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 15:37:12,928 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 15:37:12,963 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 15:37:12,963 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857985532]
[2022-01-10 15:37:12,964 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 15:37:12,964 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 15:37:12,964 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 15:37:12,966 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 15:37:12,968 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-10 15:37:13,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 15:37:13,113 INFO  L263         TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-01-10 15:37:13,118 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 15:37:13,454 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 15:37:13,455 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 15:37:13,455 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 15:37:13,455 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710022812]
[2022-01-10 15:37:13,455 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 15:37:13,458 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857985532]
[2022-01-10 15:37:13,459 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [857985532] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 15:37:13,459 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 15:37:13,459 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 15:37:13,460 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498012696]
[2022-01-10 15:37:13,460 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 15:37:13,461 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 15:37:13,462 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 15:37:13,462 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 15:37:13,462 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-10 15:37:13,463 INFO  L87              Difference]: Start difference. First operand 25 states and 30 transitions. Second operand  has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:15,700 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 15:37:15,796 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 15:37:15,796 INFO  L93              Difference]: Finished difference Result 50 states and 62 transitions.
[2022-01-10 15:37:15,798 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 15:37:15,798 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2022-01-10 15:37:15,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 15:37:15,799 INFO  L225             Difference]: With dead ends: 50
[2022-01-10 15:37:15,799 INFO  L226             Difference]: Without dead ends: 33
[2022-01-10 15:37:15,800 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-10 15:37:15,801 INFO  L933         BasicCegarLoop]: 11 mSDtfsCounter, 69 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2022-01-10 15:37:15,801 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 21 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time]
[2022-01-10 15:37:15,802 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2022-01-10 15:37:15,806 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27.
[2022-01-10 15:37:15,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:15,807 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions.
[2022-01-10 15:37:15,807 INFO  L78                 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 18
[2022-01-10 15:37:15,807 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 15:37:15,807 INFO  L470      AbstractCegarLoop]: Abstraction has 27 states and 32 transitions.
[2022-01-10 15:37:15,807 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:15,807 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions.
[2022-01-10 15:37:15,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2022-01-10 15:37:15,808 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 15:37:15,808 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 15:37:15,835 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-01-10 15:37:16,026 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 15:37:16,026 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 15:37:16,027 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 15:37:16,027 INFO  L85        PathProgramCache]: Analyzing trace with hash 361063076, now seen corresponding path program 1 times
[2022-01-10 15:37:16,027 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 15:37:16,027 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803819526]
[2022-01-10 15:37:16,028 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 15:37:16,028 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 15:37:16,066 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 15:37:16,066 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745162170]
[2022-01-10 15:37:16,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 15:37:16,067 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 15:37:16,067 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 15:37:16,070 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 15:37:16,095 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-10 15:37:16,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 15:37:16,367 INFO  L263         TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-01-10 15:37:16,369 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 15:37:16,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-01-10 15:37:16,569 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 15:37:16,569 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 15:37:16,570 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803819526]
[2022-01-10 15:37:16,570 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 15:37:16,570 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745162170]
[2022-01-10 15:37:16,570 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745162170] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 15:37:16,570 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 15:37:16,570 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 15:37:16,570 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543434394]
[2022-01-10 15:37:16,570 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 15:37:16,571 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 15:37:16,571 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 15:37:16,571 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 15:37:16,572 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-10 15:37:16,573 INFO  L87              Difference]: Start difference. First operand 27 states and 32 transitions. Second operand  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:16,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 15:37:16,832 INFO  L93              Difference]: Finished difference Result 53 states and 65 transitions.
[2022-01-10 15:37:16,832 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 15:37:16,832 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2022-01-10 15:37:16,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 15:37:16,833 INFO  L225             Difference]: With dead ends: 53
[2022-01-10 15:37:16,833 INFO  L226             Difference]: Without dead ends: 31
[2022-01-10 15:37:16,834 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-10 15:37:16,834 INFO  L933         BasicCegarLoop]: 11 mSDtfsCounter, 53 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-10 15:37:16,835 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 20 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-01-10 15:37:16,835 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2022-01-10 15:37:16,841 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29.
[2022-01-10 15:37:16,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:16,843 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions.
[2022-01-10 15:37:16,844 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 24
[2022-01-10 15:37:16,844 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 15:37:16,844 INFO  L470      AbstractCegarLoop]: Abstraction has 29 states and 34 transitions.
[2022-01-10 15:37:16,844 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 15:37:16,845 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions.
[2022-01-10 15:37:16,845 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2022-01-10 15:37:16,846 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 15:37:16,846 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 15:37:16,854 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-01-10 15:37:17,054 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-01-10 15:37:17,054 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 15:37:17,055 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 15:37:17,056 INFO  L85        PathProgramCache]: Analyzing trace with hash -313626523, now seen corresponding path program 1 times
[2022-01-10 15:37:17,056 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 15:37:17,056 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869214588]
[2022-01-10 15:37:17,057 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 15:37:17,057 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 15:37:17,100 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 15:37:17,100 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75236053]
[2022-01-10 15:37:17,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 15:37:17,100 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 15:37:17,101 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 15:37:17,106 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 15:37:17,107 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-10 15:37:17,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 15:37:17,944 INFO  L263         TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 24 conjunts are in the unsatisfiable core
[2022-01-10 15:37:17,949 INFO  L286         TraceCheckSpWp]: Computing forward predicates...