/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/product-lines/elevator_spec14_product24.cil.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-11 05:30:58,835 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-11 05:30:58,837 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-11 05:30:58,903 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-11 05:30:58,903 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-11 05:30:58,906 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-11 05:30:58,910 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-11 05:30:58,914 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-11 05:30:58,915 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-11 05:30:58,916 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-11 05:30:58,916 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-01-11 05:30:58,917 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-11 05:30:58,918 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-11 05:30:58,918 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-11 05:30:58,921 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-11 05:30:58,924 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-11 05:30:58,925 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-11 05:30:58,929 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-11 05:30:58,931 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-11 05:30:58,932 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-11 05:30:58,933 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-11 05:30:58,936 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-11 05:30:58,938 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-11 05:30:58,939 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-11 05:30:58,945 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-11 05:30:58,946 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-11 05:30:58,946 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-11 05:30:58,947 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-11 05:30:58,947 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-11 05:30:58,948 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-11 05:30:58,948 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-11 05:30:58,948 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-11 05:30:58,949 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-11 05:30:58,949 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-11 05:30:58,950 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-11 05:30:58,950 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-11 05:30:58,951 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-11 05:30:58,951 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-11 05:30:58,951 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-11 05:30:58,952 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-11 05:30:58,952 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-11 05:30:58,956 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 05:30:58,990 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-11 05:30:58,990 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-11 05:30:58,991 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-11 05:30:58,991 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-11 05:30:58,992 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-11 05:30:58,992 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-11 05:30:58,992 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-11 05:30:58,992 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-11 05:30:58,992 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-11 05:30:58,992 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-11 05:30:58,993 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-11 05:30:58,993 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-11 05:30:58,993 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-11 05:30:58,993 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-11 05:30:58,993 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-11 05:30:58,993 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-11 05:30:58,993 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-11 05:30:58,993 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-11 05:30:58,993 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-11 05:30:58,994 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-11 05:30:58,994 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-11 05:30:58,994 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 05:30:58,994 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-11 05:30:58,994 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-11 05:30:58,994 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-11 05:30:58,994 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-11 05:30:58,994 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-11 05:30:58,995 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-11 05:30:58,995 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-11 05:30:58,996 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-11 05:30:58,997 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-11 05:30:58,997 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-11 05:30:58,997 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-11 05:30:58,998 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-11 05:30:59,193 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-11 05:30:59,213 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-11 05:30:59,215 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-11 05:30:59,216 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-11 05:30:59,218 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-11 05:30:59,219 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c
[2022-01-11 05:30:59,292 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b530573b3/4b2e3e8c6af740ccae08def80fe4f942/FLAG616a1bafb
[2022-01-11 05:30:59,821 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-11 05:30:59,821 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c
[2022-01-11 05:30:59,851 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b530573b3/4b2e3e8c6af740ccae08def80fe4f942/FLAG616a1bafb
[2022-01-11 05:31:00,267 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b530573b3/4b2e3e8c6af740ccae08def80fe4f942
[2022-01-11 05:31:00,270 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-11 05:31:00,272 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-11 05:31:00,275 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-11 05:31:00,275 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-11 05:31:00,278 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-11 05:31:00,278 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:31:00" (1/1) ...
[2022-01-11 05:31:00,279 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c9c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:00, skipping insertion in model container
[2022-01-11 05:31:00,279 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:31:00" (1/1) ...
[2022-01-11 05:31:00,285 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-11 05:31:00,363 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 05:31:00,823 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c[71679,71692]
[2022-01-11 05:31:00,825 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 05:31:00,840 INFO  L200         MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2022-01-11 05:31:00,861 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 05:31:00,957 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c[71679,71692]
[2022-01-11 05:31:00,958 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 05:31:00,962 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-11 05:31:01,050 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c[71679,71692]
[2022-01-11 05:31:01,051 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 05:31:01,097 INFO  L208         MainTranslator]: Completed translation
[2022-01-11 05:31:01,098 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01 WrapperNode
[2022-01-11 05:31:01,098 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-11 05:31:01,100 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-11 05:31:01,100 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-11 05:31:01,100 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-11 05:31:01,107 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:01,150 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:01,869 INFO  L137                Inliner]: procedures = 97, calls = 346, calls flagged for inlining = 198, calls inlined = 1911, statements flattened = 65024
[2022-01-11 05:31:01,869 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-11 05:31:01,871 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-11 05:31:01,871 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-11 05:31:01,871 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-11 05:31:01,879 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:01,879 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:02,056 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:02,057 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:02,477 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:02,902 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:02,972 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:03,161 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-11 05:31:03,163 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-11 05:31:03,164 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-11 05:31:03,164 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-11 05:31:03,165 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (1/1) ...
[2022-01-11 05:31:03,172 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 05:31:03,181 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 05:31:03,195 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 05:31:03,219 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 05:31:03,239 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-11 05:31:03,239 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-11 05:31:03,239 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-11 05:31:03,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-11 05:31:03,587 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-11 05:31:03,589 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-11 05:31:24,769 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-11 05:31:24,857 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-11 05:31:24,857 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-11 05:31:24,877 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:24 BoogieIcfgContainer
[2022-01-11 05:31:24,877 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-11 05:31:24,878 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-11 05:31:24,878 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-11 05:31:24,879 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-11 05:31:24,882 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:24" (1/1) ...
[2022-01-11 05:31:28,467 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:28 BasicIcfg
[2022-01-11 05:31:28,467 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-11 05:31:28,469 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-11 05:31:28,470 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-11 05:31:28,473 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-11 05:31:28,473 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:31:00" (1/4) ...
[2022-01-11 05:31:28,474 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2199ded8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:28, skipping insertion in model container
[2022-01-11 05:31:28,474 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:01" (2/4) ...
[2022-01-11 05:31:28,474 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2199ded8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:28, skipping insertion in model container
[2022-01-11 05:31:28,474 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:24" (3/4) ...
[2022-01-11 05:31:28,475 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2199ded8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:31:28, skipping insertion in model container
[2022-01-11 05:31:28,475 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:28" (4/4) ...
[2022-01-11 05:31:28,477 INFO  L111   eAbstractionObserver]: Analyzing ICFG elevator_spec14_product24.cil.cTransformedIcfg
[2022-01-11 05:31:28,482 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-11 05:31:28,482 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2022-01-11 05:31:28,580 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-11 05:31:28,586 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 05:31:28,586 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-01-11 05:31:28,848 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 17206 states, 17200 states have (on average 1.8766279069767442) internal successors, (32278), 17205 states have internal predecessors, (32278), 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 05:31:28,861 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2022-01-11 05:31:28,861 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 05:31:28,862 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]
[2022-01-11 05:31:28,863 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 05:31:28,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 05:31:28,868 INFO  L85        PathProgramCache]: Analyzing trace with hash 1331722800, now seen corresponding path program 1 times
[2022-01-11 05:31:28,878 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 05:31:28,878 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822555031]
[2022-01-11 05:31:28,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 05:31:28,880 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 05:31:29,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 05:31:29,252 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 05:31:29,252 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 05:31:29,253 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822555031]
[2022-01-11 05:31:29,253 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822555031] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 05:31:29,253 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 05:31:29,254 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-11 05:31:29,255 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205408736]
[2022-01-11 05:31:29,256 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 05:31:29,259 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-11 05:31:29,259 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 05:31:29,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-11 05:31:29,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-11 05:31:29,334 INFO  L87              Difference]: Start difference. First operand  has 17206 states, 17200 states have (on average 1.8766279069767442) internal successors, (32278), 17205 states have internal predecessors, (32278), 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 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-11 05:31:30,461 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 05:31:30,461 INFO  L93              Difference]: Finished difference Result 41309 states and 77501 transitions.
[2022-01-11 05:31:30,463 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-11 05:31:30,464 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30
[2022-01-11 05:31:30,464 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 05:31:30,612 INFO  L225             Difference]: With dead ends: 41309
[2022-01-11 05:31:30,612 INFO  L226             Difference]: Without dead ends: 24102
[2022-01-11 05:31:30,667 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-11 05:31:30,674 INFO  L933         BasicCegarLoop]: 45220 mSDtfsCounter, 32240 mSDsluCounter, 12973 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32240 SdHoareTripleChecker+Valid, 58193 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 05:31:30,675 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [32240 Valid, 58193 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 05:31:30,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24102 states.
[2022-01-11 05:31:31,336 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24102 to 17194.
[2022-01-11 05:31:31,382 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17194 states, 17189 states have (on average 1.8762580720228053) internal successors, (32251), 17193 states have internal predecessors, (32251), 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 05:31:31,477 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17194 states to 17194 states and 32251 transitions.
[2022-01-11 05:31:31,479 INFO  L78                 Accepts]: Start accepts. Automaton has 17194 states and 32251 transitions. Word has length 30
[2022-01-11 05:31:31,479 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 05:31:31,479 INFO  L470      AbstractCegarLoop]: Abstraction has 17194 states and 32251 transitions.
[2022-01-11 05:31:31,480 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-11 05:31:31,480 INFO  L276                IsEmpty]: Start isEmpty. Operand 17194 states and 32251 transitions.
[2022-01-11 05:31:31,484 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2022-01-11 05:31:31,484 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 05:31:31,485 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]
[2022-01-11 05:31:31,485 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-11 05:31:31,485 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 05:31:31,486 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 05:31:31,486 INFO  L85        PathProgramCache]: Analyzing trace with hash -1651609758, now seen corresponding path program 1 times
[2022-01-11 05:31:31,487 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 05:31:31,487 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76463947]
[2022-01-11 05:31:31,487 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 05:31:31,487 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 05:31:31,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 05:31:31,585 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 05:31:31,586 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 05:31:31,586 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76463947]
[2022-01-11 05:31:31,586 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76463947] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 05:31:31,586 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 05:31:31,586 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-11 05:31:31,587 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516230187]
[2022-01-11 05:31:31,587 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 05:31:31,588 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-11 05:31:31,588 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 05:31:31,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-11 05:31:31,589 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-11 05:31:31,589 INFO  L87              Difference]: Start difference. First operand 17194 states and 32251 transitions. Second operand  has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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 05:31:32,563 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 05:31:32,563 INFO  L93              Difference]: Finished difference Result 41211 states and 77303 transitions.
[2022-01-11 05:31:32,564 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-11 05:31:32,564 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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) Word has length 35
[2022-01-11 05:31:32,565 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 05:31:32,641 INFO  L225             Difference]: With dead ends: 41211
[2022-01-11 05:31:32,642 INFO  L226             Difference]: Without dead ends: 24066
[2022-01-11 05:31:32,669 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-11 05:31:32,670 INFO  L933         BasicCegarLoop]: 45077 mSDtfsCounter, 32139 mSDsluCounter, 12910 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32139 SdHoareTripleChecker+Valid, 57987 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 05:31:32,671 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [32139 Valid, 57987 Invalid, 120 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 05:31:32,710 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24066 states.
[2022-01-11 05:31:33,079 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24066 to 17194.
[2022-01-11 05:31:33,109 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17194 states, 17189 states have (on average 1.8748036534993309) internal successors, (32226), 17193 states have internal predecessors, (32226), 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 05:31:33,156 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17194 states to 17194 states and 32226 transitions.
[2022-01-11 05:31:33,158 INFO  L78                 Accepts]: Start accepts. Automaton has 17194 states and 32226 transitions. Word has length 35
[2022-01-11 05:31:33,158 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 05:31:33,158 INFO  L470      AbstractCegarLoop]: Abstraction has 17194 states and 32226 transitions.
[2022-01-11 05:31:33,159 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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 05:31:33,162 INFO  L276                IsEmpty]: Start isEmpty. Operand 17194 states and 32226 transitions.
[2022-01-11 05:31:33,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2022-01-11 05:31:33,169 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 05:31:33,169 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]
[2022-01-11 05:31:33,169 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-11 05:31:33,169 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 05:31:33,170 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 05:31:33,170 INFO  L85        PathProgramCache]: Analyzing trace with hash 495273925, now seen corresponding path program 1 times
[2022-01-11 05:31:33,170 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 05:31:33,170 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169692800]
[2022-01-11 05:31:33,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 05:31:33,171 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 05:31:33,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 05:31:33,286 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 05:31:33,287 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 05:31:33,287 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169692800]
[2022-01-11 05:31:33,287 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169692800] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 05:31:33,287 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 05:31:33,287 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 05:31:33,287 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024756392]
[2022-01-11 05:31:33,287 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 05:31:33,288 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 05:31:33,288 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 05:31:33,288 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 05:31:33,289 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-11 05:31:33,289 INFO  L87              Difference]: Start difference. First operand 17194 states and 32226 transitions. Second operand  has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 05:31:35,933 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 05:31:35,933 INFO  L93              Difference]: Finished difference Result 72081 states and 135176 transitions.
[2022-01-11 05:31:35,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-01-11 05:31:35,934 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 38
[2022-01-11 05:31:35,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 05:31:36,134 INFO  L225             Difference]: With dead ends: 72081
[2022-01-11 05:31:36,135 INFO  L226             Difference]: Without dead ends: 54915
[2022-01-11 05:31:36,190 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-11 05:31:36,193 INFO  L933         BasicCegarLoop]: 90080 mSDtfsCounter, 96358 mSDsluCounter, 83855 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96358 SdHoareTripleChecker+Valid, 173935 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 05:31:36,195 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [96358 Valid, 173935 Invalid, 69 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 05:31:36,262 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54915 states.
[2022-01-11 05:31:37,026 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54915 to 17176.
[2022-01-11 05:31:37,058 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17176 states, 17171 states have (on average 1.8753712655057946) internal successors, (32202), 17175 states have internal predecessors, (32202), 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 05:31:37,105 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17176 states to 17176 states and 32202 transitions.
[2022-01-11 05:31:37,105 INFO  L78                 Accepts]: Start accepts. Automaton has 17176 states and 32202 transitions. Word has length 38
[2022-01-11 05:31:37,106 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 05:31:37,106 INFO  L470      AbstractCegarLoop]: Abstraction has 17176 states and 32202 transitions.
[2022-01-11 05:31:37,106 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 05:31:37,106 INFO  L276                IsEmpty]: Start isEmpty. Operand 17176 states and 32202 transitions.
[2022-01-11 05:31:37,109 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2022-01-11 05:31:37,109 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 05:31:37,110 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]
[2022-01-11 05:31:37,110 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-11 05:31:37,110 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 05:31:37,111 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 05:31:37,111 INFO  L85        PathProgramCache]: Analyzing trace with hash -1860879683, now seen corresponding path program 1 times
[2022-01-11 05:31:37,111 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 05:31:37,111 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252113596]
[2022-01-11 05:31:37,111 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 05:31:37,111 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 05:31:37,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 05:31:37,386 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 05:31:37,387 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 05:31:37,387 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252113596]
[2022-01-11 05:31:37,387 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252113596] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 05:31:37,387 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 05:31:37,387 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-01-11 05:31:37,387 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265917096]
[2022-01-11 05:31:37,387 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 05:31:37,388 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-01-11 05:31:37,388 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 05:31:37,389 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-01-11 05:31:37,389 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2022-01-11 05:31:37,389 INFO  L87              Difference]: Start difference. First operand 17176 states and 32202 transitions. Second operand  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 05:31:39,726 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 05:31:39,727 INFO  L93              Difference]: Finished difference Result 68684 states and 128802 transitions.
[2022-01-11 05:31:39,728 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-01-11 05:31:39,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 40
[2022-01-11 05:31:39,728 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 05:31:39,916 INFO  L225             Difference]: With dead ends: 68684
[2022-01-11 05:31:39,916 INFO  L226             Difference]: Without dead ends: 51536
[2022-01-11 05:31:39,972 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2022-01-11 05:31:39,973 INFO  L933         BasicCegarLoop]: 96554 mSDtfsCounter, 135066 mSDsluCounter, 90264 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135066 SdHoareTripleChecker+Valid, 186818 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 05:31:39,974 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [135066 Valid, 186818 Invalid, 164 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [35 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 05:31:40,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51536 states.
[2022-01-11 05:31:40,854 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51536 to 17176.
[2022-01-11 05:31:40,888 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17176 states, 17171 states have (on average 1.8749636014210005) internal successors, (32195), 17175 states have internal predecessors, (32195), 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 05:31:40,934 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17176 states to 17176 states and 32195 transitions.
[2022-01-11 05:31:40,935 INFO  L78                 Accepts]: Start accepts. Automaton has 17176 states and 32195 transitions. Word has length 40
[2022-01-11 05:31:40,935 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 05:31:40,935 INFO  L470      AbstractCegarLoop]: Abstraction has 17176 states and 32195 transitions.
[2022-01-11 05:31:40,935 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 05:31:40,935 INFO  L276                IsEmpty]: Start isEmpty. Operand 17176 states and 32195 transitions.
[2022-01-11 05:31:40,936 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2022-01-11 05:31:40,936 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 05:31:40,936 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]
[2022-01-11 05:31:40,936 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-01-11 05:31:40,937 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 05:31:40,937 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 05:31:40,938 INFO  L85        PathProgramCache]: Analyzing trace with hash -1452055458, now seen corresponding path program 1 times
[2022-01-11 05:31:40,938 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 05:31:40,938 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628406333]
[2022-01-11 05:31:40,938 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 05:31:40,938 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 05:31:40,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 05:31:41,010 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 05:31:41,011 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 05:31:41,011 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628406333]
[2022-01-11 05:31:41,011 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628406333] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 05:31:41,012 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 05:31:41,012 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-11 05:31:41,013 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042161850]
[2022-01-11 05:31:41,013 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 05:31:41,013 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-11 05:31:41,013 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 05:31:41,013 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-11 05:31:41,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-11 05:31:41,014 INFO  L87              Difference]: Start difference. First operand 17176 states and 32195 transitions. Second operand  has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 05:31:42,790 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 05:31:42,790 INFO  L93              Difference]: Finished difference Result 68563 states and 128572 transitions.
[2022-01-11 05:31:42,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-11 05:31:42,791 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40
[2022-01-11 05:31:42,791 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 05:31:42,959 INFO  L225             Difference]: With dead ends: 68563
[2022-01-11 05:31:42,960 INFO  L226             Difference]: Without dead ends: 51409
[2022-01-11 05:31:42,994 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-11 05:31:42,995 INFO  L933         BasicCegarLoop]: 51385 mSDtfsCounter, 96403 mSDsluCounter, 96345 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96403 SdHoareTripleChecker+Valid, 147730 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-11 05:31:42,995 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [96403 Valid, 147730 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 05:31:43,061 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51409 states.
[2022-01-11 05:31:43,743 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51409 to 17180.
[2022-01-11 05:31:43,775 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17180 states, 17175 states have (on average 1.8747016011644833) internal successors, (32198), 17179 states have internal predecessors, (32198), 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 05:31:43,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17180 states to 17180 states and 32198 transitions.
[2022-01-11 05:31:43,822 INFO  L78                 Accepts]: Start accepts. Automaton has 17180 states and 32198 transitions. Word has length 40
[2022-01-11 05:31:43,825 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 05:31:43,825 INFO  L470      AbstractCegarLoop]: Abstraction has 17180 states and 32198 transitions.
[2022-01-11 05:31:43,826 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 05:31:43,826 INFO  L276                IsEmpty]: Start isEmpty. Operand 17180 states and 32198 transitions.
[2022-01-11 05:31:43,826 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2022-01-11 05:31:43,827 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 05:31:43,827 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]
[2022-01-11 05:31:43,827 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-01-11 05:31:43,827 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 05:31:43,827 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 05:31:43,827 INFO  L85        PathProgramCache]: Analyzing trace with hash -1706792003, now seen corresponding path program 1 times
[2022-01-11 05:31:43,828 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 05:31:43,828 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821911652]
[2022-01-11 05:31:43,828 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 05:31:43,828 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 05:31:43,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 05:31:43,936 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 05:31:43,936 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 05:31:43,936 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821911652]
[2022-01-11 05:31:43,936 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821911652] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 05:31:43,937 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 05:31:43,937 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-01-11 05:31:43,937 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069503080]
[2022-01-11 05:31:43,937 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 05:31:43,937 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-01-11 05:31:43,937 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 05:31:43,938 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-01-11 05:31:43,938 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2022-01-11 05:31:43,938 INFO  L87              Difference]: Start difference. First operand 17180 states and 32198 transitions. Second operand  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 05:31:46,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 05:31:46,410 INFO  L93              Difference]: Finished difference Result 68779 states and 128946 transitions.
[2022-01-11 05:31:46,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-01-11 05:31:46,410 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 40
[2022-01-11 05:31:46,411 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 05:31:46,511 INFO  L225             Difference]: With dead ends: 68779
[2022-01-11 05:31:46,511 INFO  L226             Difference]: Without dead ends: 51614
[2022-01-11 05:31:46,536 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2022-01-11 05:31:46,536 INFO  L933         BasicCegarLoop]: 83859 mSDtfsCounter, 128867 mSDsluCounter, 90538 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128867 SdHoareTripleChecker+Valid, 174397 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-11 05:31:46,537 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [128867 Valid, 174397 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 05:31:46,597 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51614 states.
[2022-01-11 05:31:47,498 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51614 to 17172.
[2022-01-11 05:31:47,523 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17172 states, 17167 states have (on average 1.8749344672918973) internal successors, (32187), 17171 states have internal predecessors, (32187), 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 05:31:47,567 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17172 states to 17172 states and 32187 transitions.
[2022-01-11 05:31:47,567 INFO  L78                 Accepts]: Start accepts. Automaton has 17172 states and 32187 transitions. Word has length 40
[2022-01-11 05:31:47,568 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 05:31:47,568 INFO  L470      AbstractCegarLoop]: Abstraction has 17172 states and 32187 transitions.
[2022-01-11 05:31:47,568 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 05:31:47,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 17172 states and 32187 transitions.
[2022-01-11 05:31:47,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2022-01-11 05:31:47,569 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 05:31:47,569 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]
[2022-01-11 05:31:47,569 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-01-11 05:31:47,569 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2022-01-11 05:31:47,570 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 05:31:47,570 INFO  L85        PathProgramCache]: Analyzing trace with hash -1647325536, now seen corresponding path program 1 times
[2022-01-11 05:31:47,570 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 05:31:47,570 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114825148]
[2022-01-11 05:31:47,570 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 05:31:47,570 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 05:31:47,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 05:31:47,636 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 05:31:47,636 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 05:31:47,637 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114825148]
[2022-01-11 05:31:47,637 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114825148] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 05:31:47,637 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 05:31:47,637 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 05:31:47,637 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963289322]
[2022-01-11 05:31:47,637 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 05:31:47,638 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 05:31:47,638 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 05:31:47,639 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 05:31:47,639 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-11 05:31:47,639 INFO  L87              Difference]: Start difference. First operand 17172 states and 32187 transitions. Second operand  has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 05:31:49,377 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 05:31:49,377 INFO  L93              Difference]: Finished difference Result 48054 states and 90102 transitions.
[2022-01-11 05:31:49,377 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-11 05:31:49,378 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 41
[2022-01-11 05:31:49,378 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 05:31:49,435 INFO  L225             Difference]: With dead ends: 48054
[2022-01-11 05:31:49,435 INFO  L226             Difference]: Without dead ends: 30910
[2022-01-11 05:31:49,459 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-11 05:31:49,460 INFO  L933         BasicCegarLoop]: 32149 mSDtfsCounter, 122231 mSDsluCounter, 38671 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122231 SdHoareTripleChecker+Valid, 70820 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-11 05:31:49,460 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [122231 Valid, 70820 Invalid, 56 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 05:31:49,502 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30910 states.