/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound5.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 09:13:09,708 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 09:13:09,709 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 09:13:09,770 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 09:13:09,770 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 09:13:09,772 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 09:13:09,775 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 09:13:09,777 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 09:13:09,778 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 09:13:09,781 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-10 09:13:09,782 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-01-10 09:13:09,783 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 09:13:09,783 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 09:13:09,784 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 09:13:09,785 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 09:13:09,786 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 09:13:09,786 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 09:13:09,787 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 09:13:09,790 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 09:13:09,793 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 09:13:09,794 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 09:13:09,795 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 09:13:09,796 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 09:13:09,797 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 09:13:09,801 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 09:13:09,801 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 09:13:09,801 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 09:13:09,802 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 09:13:09,802 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 09:13:09,803 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 09:13:09,803 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 09:13:09,804 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 09:13:09,805 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 09:13:09,805 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 09:13:09,806 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 09:13:09,806 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 09:13:09,806 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 09:13:09,807 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 09:13:09,807 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 09:13:09,807 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 09:13:09,808 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 09:13:09,808 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf
[2022-01-10 09:13:09,821 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 09:13:09,821 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 09:13:09,821 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 09:13:09,822 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 09:13:09,822 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 09:13:09,822 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 09:13:09,822 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 09:13:09,823 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 09:13:09,823 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 09:13:09,823 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 09:13:09,824 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 09:13:09,824 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 09:13:09,825 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 09:13:09,825 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 09:13:09,826 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 09:13:09,826 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 09:13:09,826 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_BITWISE
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 09:13:09,984 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 09:13:09,999 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 09:13:10,001 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 09:13:10,001 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 09:13:10,002 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 09:13:10,002 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound5.c
[2022-01-10 09:13:10,053 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0188f754e/3a8a0e65d32c42c6845ac87b86bce0df/FLAG09604edce
[2022-01-10 09:13:10,403 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 09:13:10,403 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound5.c
[2022-01-10 09:13:10,407 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0188f754e/3a8a0e65d32c42c6845ac87b86bce0df/FLAG09604edce
[2022-01-10 09:13:10,414 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0188f754e/3a8a0e65d32c42c6845ac87b86bce0df
[2022-01-10 09:13:10,416 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 09:13:10,416 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 09:13:10,417 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 09:13:10,418 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 09:13:10,420 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 09:13:10,420 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,420 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18dad236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10, skipping insertion in model container
[2022-01-10 09:13:10,421 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,424 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 09:13:10,434 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 09:13:10,574 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/lcm1_valuebound5.c[552,565]
[2022-01-10 09:13:10,583 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 09:13:10,591 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 09:13:10,599 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/lcm1_valuebound5.c[552,565]
[2022-01-10 09:13:10,604 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 09:13:10,614 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 09:13:10,614 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10 WrapperNode
[2022-01-10 09:13:10,614 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 09:13:10,615 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 09:13:10,615 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 09:13:10,615 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 09:13:10,620 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,632 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,651 INFO  L137                Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 109
[2022-01-10 09:13:10,651 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 09:13:10,652 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 09:13:10,652 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 09:13:10,652 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 09:13:10,657 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,657 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,659 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,660 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,662 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,665 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,666 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,667 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 09:13:10,667 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 09:13:10,668 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 09:13:10,668 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 09:13:10,668 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (1/1) ...
[2022-01-10 09:13:10,680 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 09:13:10,688 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 09:13:10,698 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 09:13:10,702 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 09:13:10,732 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 09:13:10,732 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 09:13:10,732 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 09:13:10,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 09:13:10,769 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 09:13:10,770 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 09:13:11,007 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 09:13:11,012 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 09:13:11,012 INFO  L299             CfgBuilder]: Removed 3 assume(true) statements.
[2022-01-10 09:13:11,014 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:13:11 BoogieIcfgContainer
[2022-01-10 09:13:11,014 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 09:13:11,014 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 09:13:11,014 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 09:13:11,015 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 09:13:11,017 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:13:11" (1/1) ...
[2022-01-10 09:13:11,138 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:13:11 BasicIcfg
[2022-01-10 09:13:11,138 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 09:13:11,140 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 09:13:11,140 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 09:13:11,142 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 09:13:11,143 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:13:10" (1/4) ...
[2022-01-10 09:13:11,143 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54032ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:13:11, skipping insertion in model container
[2022-01-10 09:13:11,143 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:13:10" (2/4) ...
[2022-01-10 09:13:11,144 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54032ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:13:11, skipping insertion in model container
[2022-01-10 09:13:11,144 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:13:11" (3/4) ...
[2022-01-10 09:13:11,144 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54032ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:13:11, skipping insertion in model container
[2022-01-10 09:13:11,144 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:13:11" (4/4) ...
[2022-01-10 09:13:11,145 INFO  L111   eAbstractionObserver]: Analyzing ICFG lcm1_valuebound5.cTransformedIcfg
[2022-01-10 09:13:11,149 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 09:13:11,149 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2022-01-10 09:13:11,189 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 09:13:11,196 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 09:13:11,196 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-01-10 09:13:11,206 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 44 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 43 states have internal predecessors, (63), 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 09:13:11,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-01-10 09:13:11,209 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 09:13:11,210 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 09:13:11,210 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-10 09:13:11,213 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 09:13:11,214 INFO  L85        PathProgramCache]: Analyzing trace with hash -571069561, now seen corresponding path program 1 times
[2022-01-10 09:13:11,218 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 09:13:11,219 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705896932]
[2022-01-10 09:13:11,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:11,219 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 09:13:11,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 09:13:11,315 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 09:13:11,315 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 09:13:11,316 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705896932]
[2022-01-10 09:13:11,316 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705896932] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 09:13:11,316 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 09:13:11,316 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 09:13:11,317 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002891828]
[2022-01-10 09:13:11,318 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 09:13:11,320 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 09:13:11,320 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 09:13:11,336 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 09:13:11,336 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 09:13:11,338 INFO  L87              Difference]: Start difference. First operand  has 44 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 43 states have internal predecessors, (63), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 09:13:11,348 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 09:13:11,349 INFO  L93              Difference]: Finished difference Result 85 states and 122 transitions.
[2022-01-10 09:13:11,349 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 09:13:11,350 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2022-01-10 09:13:11,350 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 09:13:11,354 INFO  L225             Difference]: With dead ends: 85
[2022-01-10 09:13:11,354 INFO  L226             Difference]: Without dead ends: 40
[2022-01-10 09:13:11,356 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 09:13:11,358 INFO  L933         BasicCegarLoop]: 46 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, 46 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 09:13:11,358 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 09:13:11,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2022-01-10 09:13:11,375 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2022-01-10 09:13:11,376 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 35 states have (on average 1.2) internal successors, (42), 39 states have internal predecessors, (42), 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 09:13:11,377 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions.
[2022-01-10 09:13:11,377 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 17
[2022-01-10 09:13:11,378 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 09:13:11,378 INFO  L470      AbstractCegarLoop]: Abstraction has 40 states and 42 transitions.
[2022-01-10 09:13:11,378 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 09:13:11,378 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions.
[2022-01-10 09:13:11,378 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-01-10 09:13:11,378 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 09:13:11,378 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 09:13:11,379 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 09:13:11,379 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-10 09:13:11,379 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 09:13:11,379 INFO  L85        PathProgramCache]: Analyzing trace with hash -1779496372, now seen corresponding path program 1 times
[2022-01-10 09:13:11,379 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 09:13:11,380 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431609140]
[2022-01-10 09:13:11,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:11,380 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 09:13:11,417 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 09:13:11,418 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216083707]
[2022-01-10 09:13:11,418 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:11,418 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 09:13:11,418 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 09:13:11,433 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 09:13:11,434 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 09:13:11,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 09:13:11,516 INFO  L263         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 25 conjunts are in the unsatisfiable core
[2022-01-10 09:13:11,520 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 09:13:12,051 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 09:13:12,051 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 09:13:12,051 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 09:13:12,052 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431609140]
[2022-01-10 09:13:12,052 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 09:13:12,054 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216083707]
[2022-01-10 09:13:12,055 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216083707] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 09:13:12,055 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 09:13:12,055 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2022-01-10 09:13:12,055 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666501833]
[2022-01-10 09:13:12,056 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 09:13:12,058 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-01-10 09:13:12,058 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 09:13:12,058 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-01-10 09:13:12,059 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2022-01-10 09:13:12,060 INFO  L87              Difference]: Start difference. First operand 40 states and 42 transitions. Second operand  has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 09:13:12,473 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 09:13:12,473 INFO  L93              Difference]: Finished difference Result 67 states and 71 transitions.
[2022-01-10 09:13:12,474 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-01-10 09:13:12,474 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2022-01-10 09:13:12,474 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 09:13:12,474 INFO  L225             Difference]: With dead ends: 67
[2022-01-10 09:13:12,474 INFO  L226             Difference]: Without dead ends: 61
[2022-01-10 09:13:12,475 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342
[2022-01-10 09:13:12,475 INFO  L933         BasicCegarLoop]: 17 mSDtfsCounter, 227 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-10 09:13:12,476 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 44 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-01-10 09:13:12,476 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2022-01-10 09:13:12,495 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52.
[2022-01-10 09:13:12,496 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 51 states have internal predecessors, (57), 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 09:13:12,496 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions.
[2022-01-10 09:13:12,497 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 17
[2022-01-10 09:13:12,497 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 09:13:12,497 INFO  L470      AbstractCegarLoop]: Abstraction has 52 states and 57 transitions.
[2022-01-10 09:13:12,497 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 09:13:12,497 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions.
[2022-01-10 09:13:12,497 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-01-10 09:13:12,497 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 09:13:12,497 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]
[2022-01-10 09:13:12,516 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 09:13:12,714 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 09:13:12,714 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-10 09:13:12,715 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 09:13:12,715 INFO  L85        PathProgramCache]: Analyzing trace with hash -1716375385, now seen corresponding path program 1 times
[2022-01-10 09:13:12,716 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 09:13:12,716 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512216231]
[2022-01-10 09:13:12,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:12,716 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 09:13:12,753 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 09:13:12,753 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692489239]
[2022-01-10 09:13:12,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:12,753 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 09:13:12,753 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 09:13:12,754 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 09:13:12,755 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 09:13:12,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 09:13:12,814 INFO  L263         TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-01-10 09:13:12,815 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 09:13:13,222 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 09:13:13,222 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 09:13:13,222 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 09:13:13,223 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512216231]
[2022-01-10 09:13:13,223 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 09:13:13,223 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692489239]
[2022-01-10 09:13:13,223 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692489239] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 09:13:13,223 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 09:13:13,223 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-01-10 09:13:13,223 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631490168]
[2022-01-10 09:13:13,223 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 09:13:13,224 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-01-10 09:13:13,224 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 09:13:13,224 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-01-10 09:13:13,224 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2022-01-10 09:13:13,225 INFO  L87              Difference]: Start difference. First operand 52 states and 57 transitions. Second operand  has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 09:13:32,721 WARN  L228               SmtUtils]: Spent 19.37s on a formula simplification. DAG size of input: 33 DAG size of output: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-01-10 09:13:34,693 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:13:42,221 WARN  L228               SmtUtils]: Spent 7.31s on a formula simplification. DAG size of input: 32 DAG size of output: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-01-10 09:13:43,694 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:13:45,890 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:13:48,050 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:13:50,564 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:13:52,570 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:13:53,120 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 09:13:53,120 INFO  L93              Difference]: Finished difference Result 97 states and 107 transitions.
[2022-01-10 09:13:53,120 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-01-10 09:13:53,120 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 21
[2022-01-10 09:13:53,121 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 09:13:53,121 INFO  L225             Difference]: With dead ends: 97
[2022-01-10 09:13:53,121 INFO  L226             Difference]: Without dead ends: 89
[2022-01-10 09:13:53,122 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2022-01-10 09:13:53,122 INFO  L933         BasicCegarLoop]: 25 mSDtfsCounter, 51 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time
[2022-01-10 09:13:53,123 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 90 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time]
[2022-01-10 09:13:53,123 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2022-01-10 09:13:53,130 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80.
[2022-01-10 09:13:53,130 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 80 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 79 states have internal predecessors, (92), 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 09:13:53,130 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions.
[2022-01-10 09:13:53,130 INFO  L78                 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 21
[2022-01-10 09:13:53,131 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 09:13:53,131 INFO  L470      AbstractCegarLoop]: Abstraction has 80 states and 92 transitions.
[2022-01-10 09:13:53,131 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 09:13:53,131 INFO  L276                IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions.
[2022-01-10 09:13:53,131 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2022-01-10 09:13:53,131 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 09:13:53,131 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]
[2022-01-10 09:13:53,149 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 09:13:53,347 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 09:13:53,347 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-10 09:13:53,347 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 09:13:53,348 INFO  L85        PathProgramCache]: Analyzing trace with hash -169265523, now seen corresponding path program 1 times
[2022-01-10 09:13:53,348 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 09:13:53,348 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036589325]
[2022-01-10 09:13:53,348 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:53,348 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 09:13:53,370 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 09:13:53,370 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297618118]
[2022-01-10 09:13:53,371 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:53,371 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 09:13:53,371 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 09:13:53,373 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 09:13:53,373 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 09:13:53,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 09:13:53,419 INFO  L263         TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-01-10 09:13:53,421 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 09:13:53,452 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 09:13:53,453 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-10 09:13:53,453 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 09:13:53,454 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036589325]
[2022-01-10 09:13:53,454 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 09:13:53,454 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297618118]
[2022-01-10 09:13:53,455 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297618118] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 09:13:53,455 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 09:13:53,455 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-10 09:13:53,455 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464229992]
[2022-01-10 09:13:53,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 09:13:53,456 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-10 09:13:53,456 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 09:13:53,456 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-10 09:13:53,456 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-10 09:13:53,456 INFO  L87              Difference]: Start difference. First operand 80 states and 92 transitions. Second operand  has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 09:13:53,492 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 09:13:53,492 INFO  L93              Difference]: Finished difference Result 81 states and 93 transitions.
[2022-01-10 09:13:53,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-10 09:13:53,493 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23
[2022-01-10 09:13:53,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 09:13:53,495 INFO  L225             Difference]: With dead ends: 81
[2022-01-10 09:13:53,495 INFO  L226             Difference]: Without dead ends: 75
[2022-01-10 09:13:53,496 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-10 09:13:53,499 INFO  L933         BasicCegarLoop]: 39 mSDtfsCounter, 11 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 09:13:53,499 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 81 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 09:13:53,501 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2022-01-10 09:13:53,513 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74.
[2022-01-10 09:13:53,514 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 70 states have (on average 1.2) internal successors, (84), 73 states have internal predecessors, (84), 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 09:13:53,515 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions.
[2022-01-10 09:13:53,515 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 23
[2022-01-10 09:13:53,516 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 09:13:53,518 INFO  L470      AbstractCegarLoop]: Abstraction has 74 states and 84 transitions.
[2022-01-10 09:13:53,518 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 09:13:53,519 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions.
[2022-01-10 09:13:53,520 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-01-10 09:13:53,520 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 09:13:53,520 INFO  L514         BasicCegarLoop]: trace histogram [2, 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 09:13:53,539 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-01-10 09:13:53,739 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 09:13:53,740 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-10 09:13:53,740 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 09:13:53,740 INFO  L85        PathProgramCache]: Analyzing trace with hash 816419945, now seen corresponding path program 1 times
[2022-01-10 09:13:53,740 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 09:13:53,741 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875436694]
[2022-01-10 09:13:53,741 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:53,741 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 09:13:53,765 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 09:13:53,765 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560913052]
[2022-01-10 09:13:53,765 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:13:53,765 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 09:13:53,765 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 09:13:53,771 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 09:13:53,772 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-01-10 09:13:53,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 09:13:53,984 INFO  L263         TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 38 conjunts are in the unsatisfiable core
[2022-01-10 09:13:53,986 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 09:13:54,604 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 09:13:54,604 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 09:13:56,759 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 09:13:56,759 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 09:13:56,759 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875436694]
[2022-01-10 09:13:56,759 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-10 09:13:56,759 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560913052]
[2022-01-10 09:13:56,759 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [560913052] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 09:13:56,759 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-10 09:13:56,759 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 14
[2022-01-10 09:13:56,759 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130530415]
[2022-01-10 09:13:56,760 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-10 09:13:56,760 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2022-01-10 09:13:56,760 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 09:13:56,760 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2022-01-10 09:13:56,760 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182
[2022-01-10 09:13:56,760 INFO  L87              Difference]: Start difference. First operand 74 states and 84 transitions. Second operand  has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 09:14:01,601 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:14:03,604 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:14:05,792 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:14:11,269 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-10 09:14:11,279 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 09:14:11,279 INFO  L93              Difference]: Finished difference Result 129 states and 147 transitions.
[2022-01-10 09:14:11,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2022-01-10 09:14:11,291 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2022-01-10 09:14:11,292 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 09:14:11,293 INFO  L225             Difference]: With dead ends: 129
[2022-01-10 09:14:11,293 INFO  L226             Difference]: Without dead ends: 123
[2022-01-10 09:14:11,293 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=220, Invalid=430, Unknown=0, NotChecked=0, Total=650
[2022-01-10 09:14:11,294 INFO  L933         BasicCegarLoop]: 18 mSDtfsCounter, 193 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 84 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time
[2022-01-10 09:14:11,294 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 61 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 163 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time]
[2022-01-10 09:14:11,294 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 123 states.
[2022-01-10 09:14:11,302 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 96.
[2022-01-10 09:14:11,302 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 92 states have (on average 1.1956521739130435) internal successors, (110), 95 states have internal predecessors, (110), 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 09:14:11,303 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions.
[2022-01-10 09:14:11,303 INFO  L78                 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 25
[2022-01-10 09:14:11,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 09:14:11,307 INFO  L470      AbstractCegarLoop]: Abstraction has 96 states and 110 transitions.
[2022-01-10 09:14:11,307 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 09:14:11,307 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions.
[2022-01-10 09:14:11,308 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2022-01-10 09:14:11,308 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 09:14:11,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 09:14:11,312 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-01-10 09:14:11,512 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 09:14:11,512 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-10 09:14:11,513 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 09:14:11,513 INFO  L85        PathProgramCache]: Analyzing trace with hash 1998703169, now seen corresponding path program 1 times
[2022-01-10 09:14:11,513 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 09:14:11,513 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706570009]
[2022-01-10 09:14:11,513 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:14:11,513 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 09:14:11,529 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-10 09:14:11,529 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715483561]
[2022-01-10 09:14:11,529 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 09:14:11,529 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 09:14:11,529 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 09:14:11,530 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 09:14:11,531 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-01-10 09:14:11,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 09:14:11,668 INFO  L263         TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 25 conjunts are in the unsatisfiable core
[2022-01-10 09:14:11,669 INFO  L286         TraceCheckSpWp]: Computing forward predicates...