/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_NONE.epf -i ../../../trunk/examples/svcomp/array-examples/standard_init7_ground-2.i


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 21:08:46,298 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 21:08:46,299 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 21:08:46,331 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 21:08:46,332 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 21:08:46,333 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 21:08:46,345 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 21:08:46,350 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 21:08:46,351 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 21:08:46,353 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 21:08:46,354 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 21:08:46,354 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 21:08:46,354 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 21:08:46,355 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 21:08:46,356 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 21:08:46,356 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 21:08:46,356 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 21:08:46,357 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 21:08:46,358 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 21:08:46,359 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 21:08:46,363 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 21:08:46,364 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 21:08:46,365 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 21:08:46,372 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 21:08:46,373 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 21:08:46,373 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 21:08:46,373 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 21:08:46,373 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 21:08:46,374 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 21:08:46,374 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 21:08:46,374 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 21:08:46,375 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 21:08:46,375 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 21:08:46,376 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 21:08:46,376 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 21:08:46,376 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 21:08:46,376 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 21:08:46,377 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-10 21:08:46,377 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-10 21:08:46,377 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 21:08:46,383 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf
[2022-01-10 21:08:46,408 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 21:08:46,408 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 21:08:46,408 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 21:08:46,408 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 21:08:46,409 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 21:08:46,409 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 21:08:46,409 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 21:08:46,409 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 21:08:46,410 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 21:08:46,410 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 21:08:46,410 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 21:08:46,410 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 21:08:46,410 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 21:08:46,411 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 21:08:46,411 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 21:08:46,411 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 21:08:46,411 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 21:08:46,411 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 21:08:46,411 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 21:08:46,411 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 21:08:46,411 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 21:08:46,412 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 21:08:46,412 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 21:08:46,412 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 21:08:46,412 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 21:08:46,413 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 21:08:46,413 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 21:08:46,413 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 21:08:46,413 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 21:08:46,413 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 21:08:46,413 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 21:08:46,413 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 21:08:46,414 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 21:08:46,414 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_NONE
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 21:08:46,549 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 21:08:46,568 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 21:08:46,569 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 21:08:46,570 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 21:08:46,570 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 21:08:46,571 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_init7_ground-2.i
[2022-01-10 21:08:46,622 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2484133e/a2051cacdd2c44328714508795038cc0/FLAG666d917b0
[2022-01-10 21:08:46,992 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 21:08:46,993 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init7_ground-2.i
[2022-01-10 21:08:46,996 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2484133e/a2051cacdd2c44328714508795038cc0/FLAG666d917b0
[2022-01-10 21:08:47,009 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2484133e/a2051cacdd2c44328714508795038cc0
[2022-01-10 21:08:47,010 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 21:08:47,011 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 21:08:47,012 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 21:08:47,012 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 21:08:47,014 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 21:08:47,015 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,015 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466f2fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47, skipping insertion in model container
[2022-01-10 21:08:47,015 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,019 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 21:08:47,029 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 21:08:47,135 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init7_ground-2.i[816,829]
[2022-01-10 21:08:47,161 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 21:08:47,169 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 21:08:47,176 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init7_ground-2.i[816,829]
[2022-01-10 21:08:47,183 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 21:08:47,192 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 21:08:47,192 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47 WrapperNode
[2022-01-10 21:08:47,192 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 21:08:47,193 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 21:08:47,193 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 21:08:47,193 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 21:08:47,197 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,203 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,214 INFO  L137                Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82
[2022-01-10 21:08:47,214 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 21:08:47,215 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 21:08:47,215 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 21:08:47,215 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 21:08:47,220 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,220 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,222 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,222 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,226 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,229 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,230 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,231 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 21:08:47,232 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 21:08:47,232 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 21:08:47,232 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 21:08:47,232 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,237 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 21:08:47,243 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 21:08:47,252 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 21:08:47,254 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 21:08:47,276 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 21:08:47,276 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 21:08:47,277 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-01-10 21:08:47,277 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-01-10 21:08:47,277 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 21:08:47,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 21:08:47,278 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-10 21:08:47,278 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-01-10 21:08:47,329 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 21:08:47,331 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 21:08:47,497 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 21:08:47,501 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 21:08:47,501 INFO  L299             CfgBuilder]: Removed 8 assume(true) statements.
[2022-01-10 21:08:47,502 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:08:47 BoogieIcfgContainer
[2022-01-10 21:08:47,502 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 21:08:47,503 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 21:08:47,503 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 21:08:47,524 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 21:08:47,526 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:08:47" (1/1) ...
[2022-01-10 21:08:47,641 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:08:47 BasicIcfg
[2022-01-10 21:08:47,641 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 21:08:47,642 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 21:08:47,642 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 21:08:47,644 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 21:08:47,644 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:08:47" (1/4) ...
[2022-01-10 21:08:47,644 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b6e5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:08:47, skipping insertion in model container
[2022-01-10 21:08:47,644 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:08:47" (2/4) ...
[2022-01-10 21:08:47,644 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b6e5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:08:47, skipping insertion in model container
[2022-01-10 21:08:47,645 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:08:47" (3/4) ...
[2022-01-10 21:08:47,645 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b6e5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:08:47, skipping insertion in model container
[2022-01-10 21:08:47,645 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:08:47" (4/4) ...
[2022-01-10 21:08:47,645 INFO  L111   eAbstractionObserver]: Analyzing ICFG standard_init7_ground-2.iTransformedIcfg
[2022-01-10 21:08:47,649 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 21:08:47,649 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-10 21:08:47,674 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 21:08:47,680 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 21:08:47,680 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-10 21:08:47,687 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 26 states, 24 states have (on average 1.75) internal successors, (42), 25 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:08:47,690 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-01-10 21:08:47,691 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 21:08:47,691 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 21:08:47,691 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 21:08:47,694 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 21:08:47,695 INFO  L85        PathProgramCache]: Analyzing trace with hash 1572493831, now seen corresponding path program 1 times
[2022-01-10 21:08:47,699 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 21:08:47,700 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436956396]
[2022-01-10 21:08:47,700 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:08:47,700 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 21:08:47,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:08:47,794 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 21:08:47,794 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 21:08:47,794 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436956396]
[2022-01-10 21:08:47,795 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436956396] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 21:08:47,795 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 21:08:47,795 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-10 21:08:47,796 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306551599]
[2022-01-10 21:08:47,797 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 21:08:47,799 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-10 21:08:47,799 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 21:08:47,816 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-10 21:08:47,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 21:08:47,819 INFO  L87              Difference]: Start difference. First operand  has 26 states, 24 states have (on average 1.75) internal successors, (42), 25 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 21:08:47,835 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 21:08:47,836 INFO  L93              Difference]: Finished difference Result 49 states and 79 transitions.
[2022-01-10 21:08:47,836 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-10 21:08:47,838 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 19
[2022-01-10 21:08:47,838 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 21:08:47,842 INFO  L225             Difference]: With dead ends: 49
[2022-01-10 21:08:47,842 INFO  L226             Difference]: Without dead ends: 22
[2022-01-10 21:08:47,845 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-10 21:08:47,847 INFO  L933         BasicCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 21:08:47,849 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 21:08:47,860 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2022-01-10 21:08:47,875 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2022-01-10 21:08:47,876 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:08:47,877 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions.
[2022-01-10 21:08:47,878 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 19
[2022-01-10 21:08:47,878 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 21:08:47,878 INFO  L470      AbstractCegarLoop]: Abstraction has 22 states and 29 transitions.
[2022-01-10 21:08:47,878 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 21:08:47,878 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions.
[2022-01-10 21:08:47,878 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-01-10 21:08:47,879 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 21:08:47,879 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 21:08:47,879 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 21:08:47,879 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 21:08:47,880 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 21:08:47,880 INFO  L85        PathProgramCache]: Analyzing trace with hash -971081780, now seen corresponding path program 1 times
[2022-01-10 21:08:47,880 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 21:08:47,880 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183519904]
[2022-01-10 21:08:47,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:08:47,880 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 21:08:47,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:08:47,990 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 21:08:47,991 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 21:08:47,991 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183519904]
[2022-01-10 21:08:47,991 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183519904] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 21:08:47,991 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 21:08:47,991 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 21:08:47,991 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709526930]
[2022-01-10 21:08:47,991 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 21:08:47,992 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 21:08:47,992 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 21:08:47,993 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 21:08:47,993 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 21:08:47,993 INFO  L87              Difference]: Start difference. First operand 22 states and 29 transitions. Second operand  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 21:08:48,045 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 21:08:48,045 INFO  L93              Difference]: Finished difference Result 48 states and 68 transitions.
[2022-01-10 21:08:48,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 21:08:48,046 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19
[2022-01-10 21:08:48,046 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 21:08:48,046 INFO  L225             Difference]: With dead ends: 48
[2022-01-10 21:08:48,046 INFO  L226             Difference]: Without dead ends: 29
[2022-01-10 21:08:48,050 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
[2022-01-10 21:08:48,052 INFO  L933         BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 21:08:48,052 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 21:08:48,054 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2022-01-10 21:08:48,062 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2022-01-10 21:08:48,063 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 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 21:08:48,063 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions.
[2022-01-10 21:08:48,063 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 19
[2022-01-10 21:08:48,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 21:08:48,064 INFO  L470      AbstractCegarLoop]: Abstraction has 29 states and 36 transitions.
[2022-01-10 21:08:48,064 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 21:08:48,064 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions.
[2022-01-10 21:08:48,064 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2022-01-10 21:08:48,064 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 21:08:48,065 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]
[2022-01-10 21:08:48,065 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 21:08:48,065 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 21:08:48,065 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 21:08:48,065 INFO  L85        PathProgramCache]: Analyzing trace with hash 467118547, now seen corresponding path program 1 times
[2022-01-10 21:08:48,066 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 21:08:48,066 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478048864]
[2022-01-10 21:08:48,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:08:48,066 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 21:08:48,158 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:08:48,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-01-10 21:08:48,199 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 21:08:48,199 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478048864]
[2022-01-10 21:08:48,199 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478048864] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 21:08:48,199 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276430552]
[2022-01-10 21:08:48,199 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:08:48,199 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 21:08:48,199 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 21:08:48,201 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 21:08:48,202 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 21:08:48,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:08:48,354 INFO  L263         TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-01-10 21:08:48,357 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 21:08:48,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-01-10 21:08:48,470 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 21:08:48,532 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-01-10 21:08:48,533 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [276430552] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 21:08:48,534 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-10 21:08:48,534 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2022-01-10 21:08:48,535 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806508726]
[2022-01-10 21:08:48,535 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-10 21:08:48,537 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-01-10 21:08:48,537 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 21:08:48,538 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-01-10 21:08:48,538 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-10 21:08:48,538 INFO  L87              Difference]: Start difference. First operand 29 states and 36 transitions. Second operand  has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 21:08:48,991 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 21:08:48,992 INFO  L93              Difference]: Finished difference Result 75 states and 109 transitions.
[2022-01-10 21:08:48,992 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 21:08:48,992 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 26
[2022-01-10 21:08:48,992 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 21:08:48,993 INFO  L225             Difference]: With dead ends: 75
[2022-01-10 21:08:48,993 INFO  L226             Difference]: Without dead ends: 50
[2022-01-10 21:08:48,993 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-01-10 21:08:48,994 INFO  L933         BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-01-10 21:08:48,994 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-01-10 21:08:48,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2022-01-10 21:08:49,001 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2022-01-10 21:08:49,001 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50 states, 49 states have (on average 1.163265306122449) internal successors, (57), 49 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:08:49,002 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions.
[2022-01-10 21:08:49,002 INFO  L78                 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 26
[2022-01-10 21:08:49,002 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 21:08:49,002 INFO  L470      AbstractCegarLoop]: Abstraction has 50 states and 57 transitions.
[2022-01-10 21:08:49,002 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 21:08:49,003 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions.
[2022-01-10 21:08:49,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2022-01-10 21:08:49,003 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 21:08:49,003 INFO  L514         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 21:08:49,011 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-01-10 21:08:49,211 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 21:08:49,211 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 21:08:49,211 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 21:08:49,212 INFO  L85        PathProgramCache]: Analyzing trace with hash -1047120884, now seen corresponding path program 2 times
[2022-01-10 21:08:49,212 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 21:08:49,212 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982759412]
[2022-01-10 21:08:49,212 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:08:49,212 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 21:08:49,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:08:49,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2022-01-10 21:08:49,584 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 21:08:49,584 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982759412]
[2022-01-10 21:08:49,584 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982759412] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 21:08:49,584 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789757677]
[2022-01-10 21:08:49,584 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-01-10 21:08:49,584 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 21:08:49,585 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 21:08:49,585 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 21:08:49,587 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-10 21:08:49,981 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-01-10 21:08:49,981 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-10 21:08:49,985 INFO  L263         TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 38 conjunts are in the unsatisfiable core
[2022-01-10 21:08:49,987 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 21:09:02,869 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2022-01-10 21:09:02,869 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 21:09:03,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2022-01-10 21:09:03,648 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789757677] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 21:09:03,649 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-10 21:09:03,649 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 17
[2022-01-10 21:09:03,649 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915319962]
[2022-01-10 21:09:03,649 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-10 21:09:03,649 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2022-01-10 21:09:03,649 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 21:09:03,650 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2022-01-10 21:09:03,650 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=177, Unknown=6, NotChecked=0, Total=272
[2022-01-10 21:09:03,650 INFO  L87              Difference]: Start difference. First operand 50 states and 57 transitions. Second operand  has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 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 21:09:19,108 WARN  L228               SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 45 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-01-10 21:09:33,822 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 21:09:33,822 INFO  L93              Difference]: Finished difference Result 128 states and 176 transitions.
[2022-01-10 21:09:33,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2022-01-10 21:09:33,824 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 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 47
[2022-01-10 21:09:33,824 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 21:09:33,825 INFO  L225             Difference]: With dead ends: 128
[2022-01-10 21:09:33,825 INFO  L226             Difference]: Without dead ends: 85
[2022-01-10 21:09:33,825 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 86 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=185, Invalid=313, Unknown=8, NotChecked=0, Total=506
[2022-01-10 21:09:33,826 INFO  L933         BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2022-01-10 21:09:33,826 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 239 Invalid, 0 Unknown, 43 Unchecked, 8.8s Time]
[2022-01-10 21:09:33,827 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2022-01-10 21:09:33,845 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85.
[2022-01-10 21:09:33,846 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85 states, 84 states have (on average 1.0952380952380953) internal successors, (92), 84 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-01-10 21:09:33,850 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions.
[2022-01-10 21:09:33,850 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 47
[2022-01-10 21:09:33,850 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 21:09:33,850 INFO  L470      AbstractCegarLoop]: Abstraction has 85 states and 92 transitions.
[2022-01-10 21:09:33,850 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 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 21:09:33,850 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions.
[2022-01-10 21:09:33,853 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2022-01-10 21:09:33,853 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 21:09:33,853 INFO  L514         BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 21:09:33,875 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-01-10 21:09:34,058 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2022-01-10 21:09:34,059 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 21:09:34,059 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 21:09:34,059 INFO  L85        PathProgramCache]: Analyzing trace with hash -1216763821, now seen corresponding path program 3 times
[2022-01-10 21:09:34,059 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 21:09:34,059 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837887440]
[2022-01-10 21:09:34,059 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 21:09:34,060 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 21:09:34,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 21:09:34,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked.
[2022-01-10 21:09:34,469 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 21:09:34,469 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837887440]
[2022-01-10 21:09:34,469 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837887440] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 21:09:34,469 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446598452]
[2022-01-10 21:09:34,469 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-01-10 21:09:34,469 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 21:09:34,469 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 21:09:34,470 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-10 21:09:34,471 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-10 21:09:53,002 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2022-01-10 21:09:53,002 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-10 21:09:53,025 INFO  L263         TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 52 conjunts are in the unsatisfiable core
[2022-01-10 21:09:53,027 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 21:09:56,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 330 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2022-01-10 21:09:56,246 INFO  L328         TraceCheckSpWp]: Computing backward predicates...