/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_SUM.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound100.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-11 02:47:59,641 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-11 02:47:59,644 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-11 02:47:59,696 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-11 02:47:59,697 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-11 02:47:59,708 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-11 02:47:59,711 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2022-01-11 02:47:59,713 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-11 02:47:59,714 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-11 02:47:59,726 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-11 02:47:59,726 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-11 02:47:59,727 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-11 02:47:59,728 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-11 02:47:59,729 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-11 02:47:59,730 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-11 02:47:59,730 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-11 02:47:59,732 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-11 02:47:59,733 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-11 02:47:59,734 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-11 02:47:59,736 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-11 02:47:59,737 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-11 02:47:59,737 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-11 02:47:59,739 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-11 02:47:59,739 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-11 02:47:59,739 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-11 02:47:59,740 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-11 02:47:59,740 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-11 02:47:59,741 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-11 02:47:59,741 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-11 02:47:59,742 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-11 02:47:59,743 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-11 02:47:59,743 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-11 02:47:59,744 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-11 02:47:59,751 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-11 02:47:59,751 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-11 02:47:59,752 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-11 02:47:59,752 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-11 02:47:59,753 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-11 02:47:59,753 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-11 02:47:59,757 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf
[2022-01-11 02:47:59,787 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-11 02:47:59,787 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-11 02:47:59,787 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-11 02:47:59,787 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-11 02:47:59,788 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-11 02:47:59,788 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-11 02:47:59,788 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-11 02:47:59,789 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-11 02:47:59,789 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-11 02:47:59,789 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-11 02:47:59,789 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-11 02:47:59,789 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-11 02:47:59,789 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-11 02:47:59,789 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-11 02:47:59,790 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-11 02:47:59,790 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-11 02:47:59,790 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-11 02:47:59,790 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-11 02:47:59,790 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-11 02:47:59,790 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-11 02:47:59,790 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-11 02:47:59,790 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 02:47:59,791 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-11 02:47:59,791 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-11 02:47:59,791 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-11 02:47:59,791 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-11 02:47:59,791 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-11 02:47:59,791 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-11 02:47:59,791 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-11 02:47:59,791 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-11 02:47:59,792 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-11 02:47:59,792 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-11 02:47:59,792 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-11 02:47:59,792 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_SUM
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-11 02:47:59,991 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-11 02:48:00,011 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-11 02:48:00,013 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-11 02:48:00,013 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-11 02:48:00,014 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-11 02:48:00,015 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound100.c
[2022-01-11 02:48:00,075 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d17b50717/4c4821e9ec104b25a3b16ffd89f923c6/FLAGe59872221
[2022-01-11 02:48:00,453 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-11 02:48:00,453 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound100.c
[2022-01-11 02:48:00,461 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d17b50717/4c4821e9ec104b25a3b16ffd89f923c6/FLAGe59872221
[2022-01-11 02:48:00,473 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d17b50717/4c4821e9ec104b25a3b16ffd89f923c6
[2022-01-11 02:48:00,476 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-11 02:48:00,479 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-11 02:48:00,480 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-11 02:48:00,480 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-11 02:48:00,483 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-11 02:48:00,484 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,485 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8cb5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00, skipping insertion in model container
[2022-01-11 02:48:00,485 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,491 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-11 02:48:00,503 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 02:48:00,633 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/ps5-ll_unwindbound100.c[458,471]
[2022-01-11 02:48:00,658 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 02:48:00,670 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-11 02:48:00,682 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/ps5-ll_unwindbound100.c[458,471]
[2022-01-11 02:48:00,702 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 02:48:00,717 INFO  L208         MainTranslator]: Completed translation
[2022-01-11 02:48:00,718 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00 WrapperNode
[2022-01-11 02:48:00,718 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-11 02:48:00,719 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-11 02:48:00,719 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-11 02:48:00,719 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-11 02:48:00,725 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,732 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,749 INFO  L137                Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57
[2022-01-11 02:48:00,750 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-11 02:48:00,751 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-11 02:48:00,751 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-11 02:48:00,751 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-11 02:48:00,757 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,757 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,769 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,769 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,774 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,777 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,778 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,779 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-11 02:48:00,780 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-11 02:48:00,780 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-11 02:48:00,780 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-11 02:48:00,787 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (1/1) ...
[2022-01-11 02:48:00,792 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 02:48:00,800 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:48:00,816 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)
[2022-01-11 02:48:00,825 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
[2022-01-11 02:48:00,851 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-11 02:48:00,852 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-11 02:48:00,852 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-11 02:48:00,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-11 02:48:00,907 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-11 02:48:00,909 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-11 02:48:01,965 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-11 02:48:01,970 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-11 02:48:01,970 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-11 02:48:01,971 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:48:01 BoogieIcfgContainer
[2022-01-11 02:48:01,972 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-11 02:48:01,972 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-11 02:48:01,972 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-11 02:48:01,979 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-11 02:48:01,982 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:48:01" (1/1) ...
[2022-01-11 02:48:02,104 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:48:02 BasicIcfg
[2022-01-11 02:48:02,104 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-11 02:48:02,107 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-11 02:48:02,107 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-11 02:48:02,109 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-11 02:48:02,109 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:48:00" (1/4) ...
[2022-01-11 02:48:02,110 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a7fc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:48:02, skipping insertion in model container
[2022-01-11 02:48:02,110 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:48:00" (2/4) ...
[2022-01-11 02:48:02,110 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a7fc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:48:02, skipping insertion in model container
[2022-01-11 02:48:02,111 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:48:01" (3/4) ...
[2022-01-11 02:48:02,111 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a7fc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:48:02, skipping insertion in model container
[2022-01-11 02:48:02,111 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:48:02" (4/4) ...
[2022-01-11 02:48:02,113 INFO  L111   eAbstractionObserver]: Analyzing ICFG ps5-ll_unwindbound100.cTransformedIcfg
[2022-01-11 02:48:02,117 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-11 02:48:02,117 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2022-01-11 02:48:02,174 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-11 02:48:02,182 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
[2022-01-11 02:48:02,182 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-01-11 02:48:02,193 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 22 states have internal predecessors, (29), 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)
[2022-01-11 02:48:02,197 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-01-11 02:48:02,197 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:48:02,198 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 02:48:02,198 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 02:48:02,207 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:48:02,207 INFO  L85        PathProgramCache]: Analyzing trace with hash 235801450, now seen corresponding path program 1 times
[2022-01-11 02:48:02,214 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:48:02,215 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459615861]
[2022-01-11 02:48:02,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:02,216 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:48:02,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:48:02,386 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:48:02,387 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:48:02,387 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459615861]
[2022-01-11 02:48:02,387 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459615861] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 02:48:02,388 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 02:48:02,388 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-11 02:48:02,389 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920933324]
[2022-01-11 02:48:02,390 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 02:48:02,393 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-11 02:48:02,393 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:48:02,419 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-11 02:48:02,421 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-11 02:48:02,422 INFO  L87              Difference]: Start difference. First operand  has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 22 states have internal predecessors, (29), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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)
[2022-01-11 02:48:02,438 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:48:02,438 INFO  L93              Difference]: Finished difference Result 43 states and 54 transitions.
[2022-01-11 02:48:02,439 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-11 02:48:02,440 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8
[2022-01-11 02:48:02,441 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:48:02,447 INFO  L225             Difference]: With dead ends: 43
[2022-01-11 02:48:02,447 INFO  L226             Difference]: Without dead ends: 19
[2022-01-11 02:48:02,450 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
[2022-01-11 02:48:02,453 INFO  L933         BasicCegarLoop]: 24 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, 24 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
[2022-01-11 02:48:02,453 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 02:48:02,467 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-01-11 02:48:02,478 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-01-11 02:48:02,479 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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)
[2022-01-11 02:48:02,481 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions.
[2022-01-11 02:48:02,482 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 8
[2022-01-11 02:48:02,482 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:48:02,483 INFO  L470      AbstractCegarLoop]: Abstraction has 19 states and 20 transitions.
[2022-01-11 02:48:02,483 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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)
[2022-01-11 02:48:02,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions.
[2022-01-11 02:48:02,485 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-01-11 02:48:02,485 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:48:02,485 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 02:48:02,485 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-11 02:48:02,486 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 02:48:02,488 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:48:02,489 INFO  L85        PathProgramCache]: Analyzing trace with hash 264462379, now seen corresponding path program 1 times
[2022-01-11 02:48:02,489 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:48:02,489 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075364389]
[2022-01-11 02:48:02,489 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:02,489 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:48:02,533 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:48:02,533 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428370954]
[2022-01-11 02:48:02,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:02,533 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:48:02,534 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:48:02,540 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)
[2022-01-11 02:48:02,542 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-11 02:48:02,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:48:02,647 INFO  L263         TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-01-11 02:48:02,652 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 02:48:02,795 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:48:02,796 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 02:48:02,796 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:48:02,797 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075364389]
[2022-01-11 02:48:02,797 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 02:48:02,800 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428370954]
[2022-01-11 02:48:02,801 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [428370954] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 02:48:02,801 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 02:48:02,801 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-11 02:48:02,802 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704810670]
[2022-01-11 02:48:02,803 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 02:48:02,804 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-11 02:48:02,804 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:48:02,805 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-11 02:48:02,805 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-11 02:48:02,805 INFO  L87              Difference]: Start difference. First operand 19 states and 20 transitions. Second operand  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2022-01-11 02:48:03,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:48:03,117 INFO  L93              Difference]: Finished difference Result 35 states and 37 transitions.
[2022-01-11 02:48:03,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-11 02:48:03,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8
[2022-01-11 02:48:03,118 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:48:03,119 INFO  L225             Difference]: With dead ends: 35
[2022-01-11 02:48:03,119 INFO  L226             Difference]: Without dead ends: 24
[2022-01-11 02:48:03,119 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-11 02:48:03,120 INFO  L933         BasicCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-01-11 02:48:03,121 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 40 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-01-11 02:48:03,122 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2022-01-11 02:48:03,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2022-01-11 02:48:03,125 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 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)
[2022-01-11 02:48:03,126 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions.
[2022-01-11 02:48:03,126 INFO  L78                 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8
[2022-01-11 02:48:03,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:48:03,126 INFO  L470      AbstractCegarLoop]: Abstraction has 24 states and 25 transitions.
[2022-01-11 02:48:03,126 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2022-01-11 02:48:03,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions.
[2022-01-11 02:48:03,127 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-01-11 02:48:03,127 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:48:03,127 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 02:48:03,165 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-01-11 02:48:03,331 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
[2022-01-11 02:48:03,331 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 02:48:03,332 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:48:03,332 INFO  L85        PathProgramCache]: Analyzing trace with hash -1442682540, now seen corresponding path program 1 times
[2022-01-11 02:48:03,332 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:48:03,332 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717747679]
[2022-01-11 02:48:03,332 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:03,333 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:48:03,356 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:48:03,356 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709675145]
[2022-01-11 02:48:03,356 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:03,356 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:48:03,357 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:48:03,358 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)
[2022-01-11 02:48:03,360 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-11 02:48:03,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:48:03,573 INFO  L263         TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-01-11 02:48:03,576 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 02:48:03,739 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:48:03,739 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-11 02:48:06,581 WARN  L860   $PredicateComparison]: unable to prove that (= (mod (+ (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (mod (* (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 15) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616)) 18446744073709551616)) 18446744073709551616) (mod (* 18446744073709551615 |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616) (mod (* (mod (* (mod (* (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 6) 18446744073709551616)) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616) (mod (* 18446744073709551615 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 30) 18446744073709551616)) 18446744073709551616) (mod (* (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 10) 18446744073709551616)) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616)) 18446744073709551616) 0) is different from true
[2022-01-11 02:48:07,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked.
[2022-01-11 02:48:07,407 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:48:07,408 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717747679]
[2022-01-11 02:48:07,408 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 02:48:07,408 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709675145]
[2022-01-11 02:48:07,408 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709675145] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-11 02:48:07,408 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-11 02:48:07,408 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2022-01-11 02:48:07,408 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253148987]
[2022-01-11 02:48:07,409 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-11 02:48:07,409 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-01-11 02:48:07,409 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:48:07,410 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-01-11 02:48:07,410 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42
[2022-01-11 02:48:07,410 INFO  L87              Difference]: Start difference. First operand 24 states and 25 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)
[2022-01-11 02:48:12,857 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 02:48:14,875 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 []
[2022-01-11 02:48:14,886 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:48:14,886 INFO  L93              Difference]: Finished difference Result 35 states and 39 transitions.
[2022-01-11 02:48:14,887 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-01-11 02:48:14,887 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 13
[2022-01-11 02:48:14,887 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:48:14,888 INFO  L225             Difference]: With dead ends: 35
[2022-01-11 02:48:14,888 INFO  L226             Difference]: Without dead ends: 31
[2022-01-11 02:48:14,888 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=29, Invalid=46, Unknown=1, NotChecked=14, Total=90
[2022-01-11 02:48:14,889 INFO  L933         BasicCegarLoop]: 12 mSDtfsCounter, 31 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2022-01-11 02:48:14,890 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 35 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 27 Invalid, 2 Unknown, 18 Unchecked, 4.4s Time]
[2022-01-11 02:48:14,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2022-01-11 02:48:14,894 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20.
[2022-01-11 02:48:14,894 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 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)
[2022-01-11 02:48:14,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2022-01-11 02:48:14,895 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13
[2022-01-11 02:48:14,895 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:48:14,895 INFO  L470      AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2022-01-11 02:48:14,895 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)
[2022-01-11 02:48:14,895 INFO  L276                IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2022-01-11 02:48:14,896 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-01-11 02:48:14,896 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:48:14,896 INFO  L514         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 02:48:14,903 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-01-11 02:48:15,101 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
[2022-01-11 02:48:15,101 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 02:48:15,102 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:48:15,102 INFO  L85        PathProgramCache]: Analyzing trace with hash 748836995, now seen corresponding path program 1 times
[2022-01-11 02:48:15,102 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:48:15,102 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702411303]
[2022-01-11 02:48:15,102 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:15,103 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:48:15,132 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:48:15,132 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058098225]
[2022-01-11 02:48:15,132 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:15,132 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:48:15,132 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:48:15,134 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)
[2022-01-11 02:48:15,135 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-11 02:48:15,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:48:15,279 INFO  L263         TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-01-11 02:48:15,280 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 02:48:15,715 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:48:15,716 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-11 02:48:15,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 02:48:15,862 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 02:48:15,862 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702411303]
[2022-01-11 02:48:15,886 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 02:48:15,887 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058098225]
[2022-01-11 02:48:15,887 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058098225] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-11 02:48:15,887 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-11 02:48:15,887 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2022-01-11 02:48:15,887 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189891955]
[2022-01-11 02:48:15,887 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-11 02:48:15,888 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-01-11 02:48:15,888 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 02:48:15,888 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-01-11 02:48:15,889 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2022-01-11 02:48:15,889 INFO  L87              Difference]: Start difference. First operand 20 states and 21 transitions. Second operand  has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 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)
[2022-01-11 02:48:16,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 02:48:16,237 INFO  L93              Difference]: Finished difference Result 50 states and 53 transitions.
[2022-01-11 02:48:16,238 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-01-11 02:48:16,238 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 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 16
[2022-01-11 02:48:16,238 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 02:48:16,239 INFO  L225             Difference]: With dead ends: 50
[2022-01-11 02:48:16,239 INFO  L226             Difference]: Without dead ends: 44
[2022-01-11 02:48:16,239 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132
[2022-01-11 02:48:16,240 INFO  L933         BasicCegarLoop]: 14 mSDtfsCounter, 27 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 02:48:16,240 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 68 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 02:48:16,241 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2022-01-11 02:48:16,251 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32.
[2022-01-11 02:48:16,252 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 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)
[2022-01-11 02:48:16,256 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions.
[2022-01-11 02:48:16,256 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 16
[2022-01-11 02:48:16,257 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 02:48:16,257 INFO  L470      AbstractCegarLoop]: Abstraction has 32 states and 35 transitions.
[2022-01-11 02:48:16,257 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 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)
[2022-01-11 02:48:16,257 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2022-01-11 02:48:16,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-01-11 02:48:16,259 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 02:48:16,259 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 02:48:16,267 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-01-11 02:48:16,460 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
[2022-01-11 02:48:16,460 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 02:48:16,461 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 02:48:16,461 INFO  L85        PathProgramCache]: Analyzing trace with hash -728187153, now seen corresponding path program 1 times
[2022-01-11 02:48:16,461 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 02:48:16,461 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839514750]
[2022-01-11 02:48:16,461 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:16,461 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 02:48:16,490 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 02:48:16,490 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832225414]
[2022-01-11 02:48:16,490 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 02:48:16,491 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 02:48:16,491 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 02:48:16,498 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)
[2022-01-11 02:48:16,499 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-01-11 02:48:16,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 02:48:16,967 INFO  L263         TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 19 conjunts are in the unsatisfiable core
[2022-01-11 02:48:16,971 INFO  L286         TraceCheckSpWp]: Computing forward predicates...