/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/loop-invgen/id_build.i.p+sep-reducer.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 08:35:27,857 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 08:35:27,859 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2022-01-10 08:35:27,922 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2022-01-10 08:35:27,925 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 08:35:27,927 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
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[2022-01-10 08:35:27,934 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 08:35:27,935 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 08:35:27,936 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 08:35:27,939 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 08:35:27,939 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 08:35:27,940 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 08:35:27,941 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 08:35:27,945 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 08:35:27,946 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 08:35:27,947 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 08:35:27,948 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 08:35:27,949 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 08:35:27,953 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-01-10 08:35:27,954 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 08:35:27,955 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 08:35:27,955 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 08:35:27,955 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 08:35:27,956 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 08:35:27,956 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 08:35:27,957 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 08:35:27,958 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 08:35:27,959 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 08:35:27,959 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2022-01-10 08:35:27,959 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-10 08:35:27,960 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 08:35:27,961 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 08:35:27,983 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 08:35:27,984 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 08:35:27,984 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 08:35:27,984 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 08:35:27,985 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 08:35:27,985 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 08:35:27,985 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 08:35:27,985 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 08:35:27,985 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 08:35:27,985 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 08:35:27,986 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 08:35:27,986 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 08:35:27,986 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 08:35:27,986 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 08:35:27,986 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 08:35:27,986 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 08:35:27,986 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 08:35:27,987 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 08:35:27,987 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 08:35:27,987 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 08:35:27,987 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 08:35:27,988 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 08:35:27,988 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 08:35:27,988 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 08:35:27,988 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 08:35:27,988 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 08:35:27,988 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 08:35:27,988 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 08:35:27,988 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 08:35:27,988 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 08:35:27,989 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 08:35:27,989 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 08:35:27,989 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 08:35:27,989 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 08:35:28,174 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 08:35:28,194 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 08:35:28,196 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 08:35:28,196 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 08:35:28,197 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 08:35:28,197 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c
[2022-01-10 08:35:28,238 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52283ec8d/e57cb5be42ec489a97d185669ca320dc/FLAGa8309cfc8
[2022-01-10 08:35:28,620 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 08:35:28,621 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c
[2022-01-10 08:35:28,632 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52283ec8d/e57cb5be42ec489a97d185669ca320dc/FLAGa8309cfc8
[2022-01-10 08:35:29,009 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52283ec8d/e57cb5be42ec489a97d185669ca320dc
[2022-01-10 08:35:29,011 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 08:35:29,012 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 08:35:29,013 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 08:35:29,013 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 08:35:29,015 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 08:35:29,015 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,016 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2009df5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29, skipping insertion in model container
[2022-01-10 08:35:29,016 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,020 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 08:35:29,058 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 08:35:29,407 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396]
[2022-01-10 08:35:29,443 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119]
[2022-01-10 08:35:29,464 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 08:35:29,472 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 08:35:29,573 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396]
[2022-01-10 08:35:29,586 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119]
[2022-01-10 08:35:29,594 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 08:35:29,602 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 08:35:29,603 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29 WrapperNode
[2022-01-10 08:35:29,603 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 08:35:29,604 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 08:35:29,604 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 08:35:29,604 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 08:35:29,608 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,631 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,677 INFO  L137                Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1435
[2022-01-10 08:35:29,678 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 08:35:29,678 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 08:35:29,678 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 08:35:29,678 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 08:35:29,684 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,685 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,688 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,688 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,717 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,723 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,726 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,747 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 08:35:29,748 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 08:35:29,748 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 08:35:29,748 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 08:35:29,748 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (1/1) ...
[2022-01-10 08:35:29,756 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 08:35:29,764 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 08:35:29,780 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 08:35:29,788 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 08:35:29,811 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 08:35:29,812 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 08:35:29,812 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 08:35:29,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 08:35:29,920 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 08:35:29,921 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 08:35:30,839 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 08:35:30,845 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 08:35:30,846 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-01-10 08:35:30,847 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:35:30 BoogieIcfgContainer
[2022-01-10 08:35:30,847 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 08:35:30,848 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 08:35:30,848 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 08:35:30,851 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 08:35:30,854 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:35:30" (1/1) ...
[2022-01-10 08:35:31,119 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:35:31 BasicIcfg
[2022-01-10 08:35:31,119 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 08:35:31,120 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 08:35:31,121 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 08:35:31,123 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 08:35:31,123 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:35:29" (1/4) ...
[2022-01-10 08:35:31,124 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41878a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:35:31, skipping insertion in model container
[2022-01-10 08:35:31,124 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:35:29" (2/4) ...
[2022-01-10 08:35:31,124 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41878a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:35:31, skipping insertion in model container
[2022-01-10 08:35:31,124 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:35:30" (3/4) ...
[2022-01-10 08:35:31,124 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41878a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:35:31, skipping insertion in model container
[2022-01-10 08:35:31,124 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:35:31" (4/4) ...
[2022-01-10 08:35:31,125 INFO  L111   eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.cTransformedIcfg
[2022-01-10 08:35:31,130 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 08:35:31,131 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-01-10 08:35:31,167 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 08:35:31,172 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 08:35:31,172 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-01-10 08:35:31,185 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 247 states, 244 states have (on average 1.9754098360655739) internal successors, (482), 246 states have internal predecessors, (482), 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 08:35:31,194 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2022-01-10 08:35:31,194 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:35:31,195 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:31,195 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:35:31,198 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:35:31,198 INFO  L85        PathProgramCache]: Analyzing trace with hash 346463987, now seen corresponding path program 1 times
[2022-01-10 08:35:31,203 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:35:31,203 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027992967]
[2022-01-10 08:35:31,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:35:31,204 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:35:31,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:35:31,937 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 08:35:31,937 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:35:31,937 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027992967]
[2022-01-10 08:35:31,938 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027992967] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:35:31,938 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:35:31,938 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 08:35:31,939 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929562245]
[2022-01-10 08:35:31,939 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:35:31,943 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 08:35:31,943 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:35:31,965 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 08:35:31,966 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 08:35:31,969 INFO  L87              Difference]: Start difference. First operand  has 247 states, 244 states have (on average 1.9754098360655739) internal successors, (482), 246 states have internal predecessors, (482), 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 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 08:35:37,733 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:35:40,048 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:35:40,422 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:35:40,422 INFO  L93              Difference]: Finished difference Result 276 states and 513 transitions.
[2022-01-10 08:35:40,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 08:35:40,424 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 134
[2022-01-10 08:35:40,424 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:35:40,434 INFO  L225             Difference]: With dead ends: 276
[2022-01-10 08:35:40,434 INFO  L226             Difference]: Without dead ends: 259
[2022-01-10 08:35:40,436 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 08:35:40,438 INFO  L933         BasicCegarLoop]: 486 mSDtfsCounter, 40 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2022-01-10 08:35:40,439 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 1522 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time]
[2022-01-10 08:35:40,451 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 259 states.
[2022-01-10 08:35:40,480 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249.
[2022-01-10 08:35:40,481 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 249 states, 247 states have (on average 1.165991902834008) internal successors, (288), 248 states have internal predecessors, (288), 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 08:35:40,482 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 288 transitions.
[2022-01-10 08:35:40,483 INFO  L78                 Accepts]: Start accepts. Automaton has 249 states and 288 transitions. Word has length 134
[2022-01-10 08:35:40,483 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:35:40,483 INFO  L470      AbstractCegarLoop]: Abstraction has 249 states and 288 transitions.
[2022-01-10 08:35:40,484 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 08:35:40,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 249 states and 288 transitions.
[2022-01-10 08:35:40,485 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2022-01-10 08:35:40,485 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:35:40,486 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:40,486 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 08:35:40,486 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:35:40,486 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:35:40,486 INFO  L85        PathProgramCache]: Analyzing trace with hash 750551614, now seen corresponding path program 1 times
[2022-01-10 08:35:40,487 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:35:40,487 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692416305]
[2022-01-10 08:35:40,487 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:35:40,490 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:35:40,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:35:40,799 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 08:35:40,800 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:35:40,802 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692416305]
[2022-01-10 08:35:40,802 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692416305] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:35:40,803 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:35:40,803 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 08:35:40,803 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928914187]
[2022-01-10 08:35:40,803 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:35:40,805 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 08:35:40,806 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:35:40,806 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 08:35:40,806 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 08:35:40,807 INFO  L87              Difference]: Start difference. First operand 249 states and 288 transitions. Second operand  has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 08:35:44,330 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:35:48,020 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:35:48,020 INFO  L93              Difference]: Finished difference Result 266 states and 309 transitions.
[2022-01-10 08:35:48,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 08:35:48,020 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 135
[2022-01-10 08:35:48,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:35:48,022 INFO  L225             Difference]: With dead ends: 266
[2022-01-10 08:35:48,022 INFO  L226             Difference]: Without dead ends: 264
[2022-01-10 08:35:48,023 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 08:35:48,023 INFO  L933         BasicCegarLoop]: 266 mSDtfsCounter, 49 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time
[2022-01-10 08:35:48,024 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 681 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time]
[2022-01-10 08:35:48,024 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2022-01-10 08:35:48,031 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 254.
[2022-01-10 08:35:48,031 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 254 states, 252 states have (on average 1.1706349206349207) internal successors, (295), 253 states have internal predecessors, (295), 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 08:35:48,032 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 295 transitions.
[2022-01-10 08:35:48,032 INFO  L78                 Accepts]: Start accepts. Automaton has 254 states and 295 transitions. Word has length 135
[2022-01-10 08:35:48,032 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:35:48,032 INFO  L470      AbstractCegarLoop]: Abstraction has 254 states and 295 transitions.
[2022-01-10 08:35:48,032 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 08:35:48,033 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states and 295 transitions.
[2022-01-10 08:35:48,042 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2022-01-10 08:35:48,042 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:35:48,042 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:48,043 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 08:35:48,043 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:35:48,043 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:35:48,043 INFO  L85        PathProgramCache]: Analyzing trace with hash 704661409, now seen corresponding path program 1 times
[2022-01-10 08:35:48,043 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:35:48,044 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657153079]
[2022-01-10 08:35:48,044 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:35:48,044 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:35:48,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:35:48,285 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 08:35:48,285 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:35:48,287 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657153079]
[2022-01-10 08:35:48,288 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657153079] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:35:48,288 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:35:48,288 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 08:35:48,288 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624862367]
[2022-01-10 08:35:48,289 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:35:48,289 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 08:35:48,289 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:35:48,290 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 08:35:48,290 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 08:35:48,290 INFO  L87              Difference]: Start difference. First operand 254 states and 295 transitions. Second operand  has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 08:35:54,320 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:35:54,320 INFO  L93              Difference]: Finished difference Result 264 states and 307 transitions.
[2022-01-10 08:35:54,321 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 08:35:54,321 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 137
[2022-01-10 08:35:54,321 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:35:54,322 INFO  L225             Difference]: With dead ends: 264
[2022-01-10 08:35:54,322 INFO  L226             Difference]: Without dead ends: 262
[2022-01-10 08:35:54,323 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 08:35:54,323 INFO  L933         BasicCegarLoop]: 248 mSDtfsCounter, 63 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time
[2022-01-10 08:35:54,323 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 618 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time]
[2022-01-10 08:35:54,324 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 262 states.
[2022-01-10 08:35:54,330 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 254.
[2022-01-10 08:35:54,331 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 254 states, 252 states have (on average 1.1666666666666667) internal successors, (294), 253 states have internal predecessors, (294), 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 08:35:54,331 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 294 transitions.
[2022-01-10 08:35:54,331 INFO  L78                 Accepts]: Start accepts. Automaton has 254 states and 294 transitions. Word has length 137
[2022-01-10 08:35:54,332 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:35:54,332 INFO  L470      AbstractCegarLoop]: Abstraction has 254 states and 294 transitions.
[2022-01-10 08:35:54,332 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 08:35:54,332 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states and 294 transitions.
[2022-01-10 08:35:54,333 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2022-01-10 08:35:54,333 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:35:54,333 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:54,333 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-10 08:35:54,333 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:35:54,334 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:35:54,334 INFO  L85        PathProgramCache]: Analyzing trace with hash -274332907, now seen corresponding path program 1 times
[2022-01-10 08:35:54,334 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:35:54,334 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896545943]
[2022-01-10 08:35:54,334 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:35:54,334 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:35:54,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:35:54,596 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 08:35:54,596 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:35:54,596 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896545943]
[2022-01-10 08:35:54,596 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896545943] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 08:35:54,596 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 08:35:54,596 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 08:35:54,596 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090653517]
[2022-01-10 08:35:54,597 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 08:35:54,598 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 08:35:54,598 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 08:35:54,599 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 08:35:54,599 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 08:35:54,599 INFO  L87              Difference]: Start difference. First operand 254 states and 294 transitions. Second operand  has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 08:35:58,432 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:36:00,021 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-01-10 08:36:06,286 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 08:36:06,286 INFO  L93              Difference]: Finished difference Result 267 states and 308 transitions.
[2022-01-10 08:36:06,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 08:36:06,288 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 137
[2022-01-10 08:36:06,288 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 08:36:06,289 INFO  L225             Difference]: With dead ends: 267
[2022-01-10 08:36:06,289 INFO  L226             Difference]: Without dead ends: 265
[2022-01-10 08:36:06,289 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 08:36:06,290 INFO  L933         BasicCegarLoop]: 276 mSDtfsCounter, 33 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time
[2022-01-10 08:36:06,290 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 696 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 415 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time]
[2022-01-10 08:36:06,291 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 265 states.
[2022-01-10 08:36:06,296 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 249.
[2022-01-10 08:36:06,296 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 249 states, 247 states have (on average 1.1619433198380567) internal successors, (287), 248 states have internal predecessors, (287), 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 08:36:06,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 287 transitions.
[2022-01-10 08:36:06,297 INFO  L78                 Accepts]: Start accepts. Automaton has 249 states and 287 transitions. Word has length 137
[2022-01-10 08:36:06,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 08:36:06,297 INFO  L470      AbstractCegarLoop]: Abstraction has 249 states and 287 transitions.
[2022-01-10 08:36:06,297 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 08:36:06,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 249 states and 287 transitions.
[2022-01-10 08:36:06,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2022-01-10 08:36:06,298 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 08:36:06,298 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:06,298 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-01-10 08:36:06,299 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 08:36:06,299 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 08:36:06,299 INFO  L85        PathProgramCache]: Analyzing trace with hash -273375559, now seen corresponding path program 1 times
[2022-01-10 08:36:06,299 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 08:36:06,299 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231774675]
[2022-01-10 08:36:06,299 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:36:06,299 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 08:36:06,644 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:36:28,049 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 08:36:28,049 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 08:36:28,049 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231774675]
[2022-01-10 08:36:28,049 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231774675] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 08:36:28,049 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715456399]
[2022-01-10 08:36:28,050 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 08:36:28,050 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 08:36:28,050 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 08:36:28,051 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 08:36:28,054 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 08:36:28,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 08:36:28,795 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 62 conjunts are in the unsatisfiable core
[2022-01-10 08:36:28,802 INFO  L286         TraceCheckSpWp]: Computing forward predicates...