/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_3.i


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


This is Ultimate 0.2.2-dev-34549b5
[2022-04-06 09:38:40,932 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-06 09:38:40,934 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-06 09:38:40,966 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-06 09:38:40,967 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-06 09:38:40,968 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-06 09:38:40,970 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-06 09:38:40,975 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
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[2022-04-06 09:38:40,982 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
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[2022-04-06 09:38:40,986 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-06 09:38:40,988 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-06 09:38:40,989 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-06 09:38:40,989 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-06 09:38:40,991 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-06 09:38:40,996 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-06 09:38:40,997 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-06 09:38:40,998 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-06 09:38:40,999 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-06 09:38:41,000 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-06 09:38:41,001 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-06 09:38:41,006 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-04-06 09:38:41,007 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-06 09:38:41,008 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-06 09:38:41,008 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-06 09:38:41,010 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-06 09:38:41,010 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-06 09:38:41,011 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-06 09:38:41,012 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-06 09:38:41,012 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-06 09:38:41,013 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2022-04-06 09:38:41,014 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-04-06 09:38:41,016 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-06 09:38:41,017 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf
[2022-04-06 09:38:41,042 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-06 09:38:41,043 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-06 09:38:41,044 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-06 09:38:41,044 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-06 09:38:41,045 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-04-06 09:38:41,045 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-04-06 09:38:41,045 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-04-06 09:38:41,045 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-06 09:38:41,045 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-06 09:38:41,046 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-06 09:38:41,046 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-06 09:38:41,046 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-06 09:38:41,046 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-06 09:38:41,046 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-06 09:38:41,047 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-06 09:38:41,047 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-06 09:38:41,047 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-06 09:38:41,047 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-04-06 09:38:41,047 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-06 09:38:41,047 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-06 09:38:41,048 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-06 09:38:41,048 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-06 09:38:41,048 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-06 09:38:41,048 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-04-06 09:38:41,048 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-06 09:38:41,048 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-06 09:38:41,048 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-06 09:38:41,049 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-06 09:38:41,049 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-04-06 09:38:41,049 INFO  L138        SettingsManager]:  * TransformationType=LOOP_ACCELERATION_QVASR
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-06 09:38:41,223 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-06 09:38:41,240 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-06 09:38:41,242 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-06 09:38:41,243 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-06 09:38:41,251 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-06 09:38:41,253 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_3.i
[2022-04-06 09:38:41,305 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3533912b2/3a9f0ed47c0d4cdb9a8544165d36a0f3/FLAG3d6d2295c
[2022-04-06 09:38:41,622 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-06 09:38:41,623 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_3.i
[2022-04-06 09:38:41,628 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3533912b2/3a9f0ed47c0d4cdb9a8544165d36a0f3/FLAG3d6d2295c
[2022-04-06 09:38:42,045 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3533912b2/3a9f0ed47c0d4cdb9a8544165d36a0f3
[2022-04-06 09:38:42,047 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-06 09:38:42,048 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-04-06 09:38:42,049 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-06 09:38:42,049 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-06 09:38:42,052 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-06 09:38:42,052 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,053 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4b495a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42, skipping insertion in model container
[2022-04-06 09:38:42,053 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,058 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-06 09:38:42,070 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-06 09:38:42,207 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_3.i[920,933]
[2022-04-06 09:38:42,222 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-06 09:38:42,227 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-06 09:38:42,240 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_3.i[920,933]
[2022-04-06 09:38:42,247 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-06 09:38:42,257 INFO  L208         MainTranslator]: Completed translation
[2022-04-06 09:38:42,258 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42 WrapperNode
[2022-04-06 09:38:42,258 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-06 09:38:42,259 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-06 09:38:42,259 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-06 09:38:42,259 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-06 09:38:42,266 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,267 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,272 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,272 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,276 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,279 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,280 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,282 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-06 09:38:42,282 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-06 09:38:42,282 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-06 09:38:42,283 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-06 09:38:42,283 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,298 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-06 09:38:42,308 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 09:38:42,320 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)
[2022-04-06 09:38:42,322 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
[2022-04-06 09:38:42,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-06 09:38:42,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-06 09:38:42,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-06 09:38:42,345 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-04-06 09:38:42,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-06 09:38:42,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2022-04-06 09:38:42,346 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2022-04-06 09:38:42,346 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-06 09:38:42,346 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2022-04-06 09:38:42,346 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert
[2022-04-06 09:38:42,346 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-06 09:38:42,346 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-06 09:38:42,346 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-04-06 09:38:42,346 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-06 09:38:42,347 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2022-04-06 09:38:42,347 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-06 09:38:42,347 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-06 09:38:42,347 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-06 09:38:42,347 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-06 09:38:42,347 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-06 09:38:42,347 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-06 09:38:42,347 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-06 09:38:42,404 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-06 09:38:42,405 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-06 09:38:42,506 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-06 09:38:42,511 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-06 09:38:42,511 INFO  L299             CfgBuilder]: Removed 2 assume(true) statements.
[2022-04-06 09:38:42,512 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:38:42 BoogieIcfgContainer
[2022-04-06 09:38:42,513 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-06 09:38:42,513 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-04-06 09:38:42,513 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-04-06 09:38:42,514 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-04-06 09:38:42,517 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:38:42" (1/1) ...
[2022-04-06 09:38:42,518 INFO  L168   ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR
[2022-04-06 09:38:42,531 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 09:38:42 BasicIcfg
[2022-04-06 09:38:42,531 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-04-06 09:38:42,533 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-06 09:38:42,533 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-06 09:38:42,535 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-06 09:38:42,535 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 09:38:42" (1/4) ...
[2022-04-06 09:38:42,536 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0a4f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:38:42, skipping insertion in model container
[2022-04-06 09:38:42,536 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:38:42" (2/4) ...
[2022-04-06 09:38:42,536 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0a4f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:38:42, skipping insertion in model container
[2022-04-06 09:38:42,536 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:38:42" (3/4) ...
[2022-04-06 09:38:42,537 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0a4f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 09:38:42, skipping insertion in model container
[2022-04-06 09:38:42,537 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 09:38:42" (4/4) ...
[2022-04-06 09:38:42,538 INFO  L111   eAbstractionObserver]: Analyzing ICFG simple_array_index_value_3.iqvasr
[2022-04-06 09:38:42,542 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-06 09:38:42,542 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-06 09:38:42,575 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-06 09:38:42,581 INFO  L340      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=FINITE_AUTOMATA, 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
[2022-04-06 09:38:42,581 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-06 09:38:42,596 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 24 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-06 09:38:42,600 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-04-06 09:38:42,600 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-06 09:38:42,600 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 09:38:42,601 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 09:38:42,604 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 09:38:42,604 INFO  L85        PathProgramCache]: Analyzing trace with hash -282439964, now seen corresponding path program 1 times
[2022-04-06 09:38:42,611 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 09:38:42,612 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502309654]
[2022-04-06 09:38:42,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 09:38:42,613 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 09:38:42,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:42,745 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 09:38:42,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:42,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:42,756 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 09:38:42,756 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502309654]
[2022-04-06 09:38:42,757 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502309654] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 09:38:42,757 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 09:38:42,757 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-06 09:38:42,759 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263458640]
[2022-04-06 09:38:42,759 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 09:38:42,762 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-06 09:38:42,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 09:38:42,784 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-06 09:38:42,785 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-06 09:38:42,787 INFO  L87              Difference]: Start difference. First operand  has 24 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:42,815 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 09:38:42,815 INFO  L93              Difference]: Finished difference Result 41 states and 50 transitions.
[2022-04-06 09:38:42,816 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-06 09:38:42,817 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14
[2022-04-06 09:38:42,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 09:38:42,822 INFO  L225             Difference]: With dead ends: 41
[2022-04-06 09:38:42,822 INFO  L226             Difference]: Without dead ends: 19
[2022-04-06 09:38:42,825 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-06 09:38:42,828 INFO  L913         BasicCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 09:38:42,829 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 09:38:42,840 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-04-06 09:38:42,850 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-04-06 09:38:42,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-06 09:38:42,851 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2022-04-06 09:38:42,852 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 14
[2022-04-06 09:38:42,853 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-06 09:38:42,853 INFO  L478      AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2022-04-06 09:38:42,853 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:42,853 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2022-04-06 09:38:42,854 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-04-06 09:38:42,854 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-06 09:38:42,854 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 09:38:42,854 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-06 09:38:42,855 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 09:38:42,855 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 09:38:42,855 INFO  L85        PathProgramCache]: Analyzing trace with hash 1460370371, now seen corresponding path program 1 times
[2022-04-06 09:38:42,856 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 09:38:42,856 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813841473]
[2022-04-06 09:38:42,856 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 09:38:42,856 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 09:38:42,883 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:42,940 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 09:38:42,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:42,949 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:42,949 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 09:38:42,950 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813841473]
[2022-04-06 09:38:42,950 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813841473] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 09:38:42,950 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 09:38:42,950 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-04-06 09:38:42,950 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668192488]
[2022-04-06 09:38:42,950 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 09:38:42,952 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-04-06 09:38:42,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 09:38:42,953 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-04-06 09:38:42,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-04-06 09:38:42,953 INFO  L87              Difference]: Start difference. First operand 19 states and 21 transitions. Second operand  has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:43,061 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 09:38:43,062 INFO  L93              Difference]: Finished difference Result 27 states and 29 transitions.
[2022-04-06 09:38:43,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-04-06 09:38:43,062 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14
[2022-04-06 09:38:43,063 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 09:38:43,063 INFO  L225             Difference]: With dead ends: 27
[2022-04-06 09:38:43,063 INFO  L226             Difference]: Without dead ends: 25
[2022-04-06 09:38:43,064 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2022-04-06 09:38:43,065 INFO  L913         BasicCegarLoop]: 18 mSDtfsCounter, 24 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-06 09:38:43,066 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 35 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-06 09:38:43,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2022-04-06 09:38:43,071 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24.
[2022-04-06 09:38:43,071 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-06 09:38:43,072 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions.
[2022-04-06 09:38:43,072 INFO  L78                 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14
[2022-04-06 09:38:43,072 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-06 09:38:43,072 INFO  L478      AbstractCegarLoop]: Abstraction has 24 states and 26 transitions.
[2022-04-06 09:38:43,072 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:43,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions.
[2022-04-06 09:38:43,073 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-04-06 09:38:43,073 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-06 09:38:43,073 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 09:38:43,073 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-06 09:38:43,074 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 09:38:43,074 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 09:38:43,074 INFO  L85        PathProgramCache]: Analyzing trace with hash 1461293892, now seen corresponding path program 1 times
[2022-04-06 09:38:43,074 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 09:38:43,075 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984375771]
[2022-04-06 09:38:43,075 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 09:38:43,075 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 09:38:43,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:43,121 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 09:38:43,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:43,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:43,128 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 09:38:43,128 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984375771]
[2022-04-06 09:38:43,128 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984375771] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 09:38:43,128 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 09:38:43,128 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-06 09:38:43,129 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504279751]
[2022-04-06 09:38:43,129 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 09:38:43,129 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-04-06 09:38:43,129 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 09:38:43,130 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-04-06 09:38:43,130 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-06 09:38:43,130 INFO  L87              Difference]: Start difference. First operand 24 states and 26 transitions. Second operand  has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:43,185 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 09:38:43,186 INFO  L93              Difference]: Finished difference Result 48 states and 55 transitions.
[2022-04-06 09:38:43,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-04-06 09:38:43,186 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14
[2022-04-06 09:38:43,186 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 09:38:43,190 INFO  L225             Difference]: With dead ends: 48
[2022-04-06 09:38:43,191 INFO  L226             Difference]: Without dead ends: 31
[2022-04-06 09:38:43,192 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-04-06 09:38:43,197 INFO  L913         BasicCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 09:38:43,198 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 23 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 09:38:43,200 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2022-04-06 09:38:43,217 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25.
[2022-04-06 09:38:43,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-06 09:38:43,218 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2022-04-06 09:38:43,219 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 14
[2022-04-06 09:38:43,219 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-06 09:38:43,219 INFO  L478      AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2022-04-06 09:38:43,219 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:43,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2022-04-06 09:38:43,221 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-04-06 09:38:43,221 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-06 09:38:43,221 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 09:38:43,221 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-06 09:38:43,221 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 09:38:43,222 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 09:38:43,222 INFO  L85        PathProgramCache]: Analyzing trace with hash -1397977152, now seen corresponding path program 1 times
[2022-04-06 09:38:43,222 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 09:38:43,222 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599698738]
[2022-04-06 09:38:43,223 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 09:38:43,223 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 09:38:43,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:43,302 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 09:38:43,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:43,309 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:43,309 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 09:38:43,309 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599698738]
[2022-04-06 09:38:43,309 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599698738] provided 0 perfect and 1 imperfect interpolant sequences
[2022-04-06 09:38:43,309 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517650963]
[2022-04-06 09:38:43,310 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 09:38:43,310 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 09:38:43,310 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 09:38:43,311 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)
[2022-04-06 09:38:43,346 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-04-06 09:38:43,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:43,388 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-04-06 09:38:43,393 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 09:38:43,474 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-04-06 09:38:43,540 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21
[2022-04-06 09:38:43,556 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:43,556 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 09:38:43,659 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16
[2022-04-06 09:38:43,666 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32
[2022-04-06 09:38:43,727 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:43,730 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [517650963] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-06 09:38:43,731 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-04-06 09:38:43,731 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12
[2022-04-06 09:38:43,731 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982113301]
[2022-04-06 09:38:43,731 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-04-06 09:38:43,733 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-04-06 09:38:43,733 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 09:38:43,734 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-04-06 09:38:43,737 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2022-04-06 09:38:43,737 INFO  L87              Difference]: Start difference. First operand 25 states and 27 transitions. Second operand  has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:44,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 09:38:44,014 INFO  L93              Difference]: Finished difference Result 58 states and 68 transitions.
[2022-04-06 09:38:44,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-04-06 09:38:44,016 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2022-04-06 09:38:44,016 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 09:38:44,017 INFO  L225             Difference]: With dead ends: 58
[2022-04-06 09:38:44,018 INFO  L226             Difference]: Without dead ends: 41
[2022-04-06 09:38:44,019 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342
[2022-04-06 09:38:44,021 INFO  L913         BasicCegarLoop]: 16 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-06 09:38:44,022 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 50 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 140 Invalid, 0 Unknown, 25 Unchecked, 0.1s Time]
[2022-04-06 09:38:44,023 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2022-04-06 09:38:44,029 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 26.
[2022-04-06 09:38:44,030 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-06 09:38:44,030 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions.
[2022-04-06 09:38:44,030 INFO  L78                 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 15
[2022-04-06 09:38:44,030 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-06 09:38:44,031 INFO  L478      AbstractCegarLoop]: Abstraction has 26 states and 28 transitions.
[2022-04-06 09:38:44,031 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:44,031 INFO  L276                IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions.
[2022-04-06 09:38:44,031 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-04-06 09:38:44,031 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-06 09:38:44,032 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 09:38:44,059 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-04-06 09:38:44,245 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 09:38:44,246 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 09:38:44,246 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 09:38:44,246 INFO  L85        PathProgramCache]: Analyzing trace with hash 158933700, now seen corresponding path program 2 times
[2022-04-06 09:38:44,246 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 09:38:44,247 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135981562]
[2022-04-06 09:38:44,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 09:38:44,247 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 09:38:44,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:44,314 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 09:38:44,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:44,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:44,320 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 09:38:44,320 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135981562]
[2022-04-06 09:38:44,320 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135981562] provided 0 perfect and 1 imperfect interpolant sequences
[2022-04-06 09:38:44,320 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056842582]
[2022-04-06 09:38:44,320 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-04-06 09:38:44,320 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 09:38:44,320 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 09:38:44,321 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)
[2022-04-06 09:38:44,348 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-04-06 09:38:44,371 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-04-06 09:38:44,371 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-04-06 09:38:44,372 INFO  L263         TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjunts are in the unsatisfiable core
[2022-04-06 09:38:44,375 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 09:38:44,418 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-04-06 09:38:44,454 INFO  L356             Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2022-04-06 09:38:44,454 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20
[2022-04-06 09:38:44,529 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:44,529 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 09:38:44,651 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27
[2022-04-06 09:38:44,655 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 206
[2022-04-06 09:38:44,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:44,749 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056842582] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-06 09:38:44,749 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-04-06 09:38:44,749 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16
[2022-04-06 09:38:44,750 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446199838]
[2022-04-06 09:38:44,750 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-04-06 09:38:44,750 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-04-06 09:38:44,750 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 09:38:44,751 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-04-06 09:38:44,751 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240
[2022-04-06 09:38:44,751 INFO  L87              Difference]: Start difference. First operand 26 states and 28 transitions. Second operand  has 16 states, 16 states have (on average 1.6875) internal successors, (27), 15 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:45,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 09:38:45,068 INFO  L93              Difference]: Finished difference Result 66 states and 79 transitions.
[2022-04-06 09:38:45,068 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2022-04-06 09:38:45,068 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 1.6875) internal successors, (27), 15 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16
[2022-04-06 09:38:45,068 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 09:38:45,069 INFO  L225             Difference]: With dead ends: 66
[2022-04-06 09:38:45,069 INFO  L226             Difference]: Without dead ends: 49
[2022-04-06 09:38:45,070 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702
[2022-04-06 09:38:45,070 INFO  L913         BasicCegarLoop]: 19 mSDtfsCounter, 50 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-04-06 09:38:45,071 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 53 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 212 Invalid, 0 Unknown, 1 Unchecked, 0.2s Time]
[2022-04-06 09:38:45,071 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2022-04-06 09:38:45,076 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 27.
[2022-04-06 09:38:45,076 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-06 09:38:45,077 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions.
[2022-04-06 09:38:45,077 INFO  L78                 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 16
[2022-04-06 09:38:45,077 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-06 09:38:45,077 INFO  L478      AbstractCegarLoop]: Abstraction has 27 states and 29 transitions.
[2022-04-06 09:38:45,077 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 1.6875) internal successors, (27), 15 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:45,077 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions.
[2022-04-06 09:38:45,078 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-04-06 09:38:45,078 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-06 09:38:45,078 INFO  L499         BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 09:38:45,100 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-04-06 09:38:45,296 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 09:38:45,296 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 09:38:45,296 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 09:38:45,297 INFO  L85        PathProgramCache]: Analyzing trace with hash 1178529856, now seen corresponding path program 3 times
[2022-04-06 09:38:45,297 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 09:38:45,297 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339816424]
[2022-04-06 09:38:45,297 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 09:38:45,297 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 09:38:45,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:45,381 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 09:38:45,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:45,388 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:45,388 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 09:38:45,388 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339816424]
[2022-04-06 09:38:45,389 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339816424] provided 0 perfect and 1 imperfect interpolant sequences
[2022-04-06 09:38:45,389 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331132135]
[2022-04-06 09:38:45,389 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-04-06 09:38:45,389 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 09:38:45,389 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 09:38:45,390 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)
[2022-04-06 09:38:45,397 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-04-06 09:38:45,456 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2022-04-06 09:38:45,456 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-04-06 09:38:45,456 INFO  L263         TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-04-06 09:38:45,458 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 09:38:45,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:45,513 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 09:38:45,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:45,583 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331132135] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-06 09:38:45,584 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-04-06 09:38:45,584 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12
[2022-04-06 09:38:45,584 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564935230]
[2022-04-06 09:38:45,584 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-04-06 09:38:45,584 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-04-06 09:38:45,584 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 09:38:45,585 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-04-06 09:38:45,585 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2022-04-06 09:38:45,585 INFO  L87              Difference]: Start difference. First operand 27 states and 29 transitions. Second operand  has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:46,089 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 09:38:46,090 INFO  L93              Difference]: Finished difference Result 92 states and 121 transitions.
[2022-04-06 09:38:46,090 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-04-06 09:38:46,090 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2022-04-06 09:38:46,090 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 09:38:46,091 INFO  L225             Difference]: With dead ends: 92
[2022-04-06 09:38:46,091 INFO  L226             Difference]: Without dead ends: 75
[2022-04-06 09:38:46,092 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380
[2022-04-06 09:38:46,092 INFO  L913         BasicCegarLoop]: 25 mSDtfsCounter, 150 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-04-06 09:38:46,093 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 47 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-04-06 09:38:46,093 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2022-04-06 09:38:46,101 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 32.
[2022-04-06 09:38:46,102 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-06 09:38:46,102 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions.
[2022-04-06 09:38:46,102 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 17
[2022-04-06 09:38:46,103 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-06 09:38:46,103 INFO  L478      AbstractCegarLoop]: Abstraction has 32 states and 34 transitions.
[2022-04-06 09:38:46,103 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 09:38:46,103 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions.
[2022-04-06 09:38:46,103 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2022-04-06 09:38:46,103 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-06 09:38:46,104 INFO  L499         BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 09:38:46,127 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-04-06 09:38:46,319 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 09:38:46,320 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 09:38:46,320 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 09:38:46,320 INFO  L85        PathProgramCache]: Analyzing trace with hash 815042884, now seen corresponding path program 4 times
[2022-04-06 09:38:46,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 09:38:46,320 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302921624]
[2022-04-06 09:38:46,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 09:38:46,322 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 09:38:46,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:46,485 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 09:38:46,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 09:38:46,492 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:46,492 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 09:38:46,493 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302921624]
[2022-04-06 09:38:46,493 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302921624] provided 0 perfect and 1 imperfect interpolant sequences
[2022-04-06 09:38:46,493 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674311214]
[2022-04-06 09:38:46,493 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-04-06 09:38:46,493 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 09:38:46,493 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 09:38:46,495 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-06 09:38:46,529 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-04-06 09:38:46,571 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-04-06 09:38:46,571 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-04-06 09:38:46,573 INFO  L263         TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 45 conjunts are in the unsatisfiable core
[2022-04-06 09:38:46,577 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 09:38:46,606 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15
[2022-04-06 09:38:46,641 INFO  L356             Elim1Store]: treesize reduction 57, result has 20.8 percent of original size
[2022-04-06 09:38:46,641 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34
[2022-04-06 09:38:46,672 INFO  L356             Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2022-04-06 09:38:46,672 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20
[2022-04-06 09:38:46,705 INFO  L356             Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2022-04-06 09:38:46,706 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20
[2022-04-06 09:38:46,733 INFO  L356             Elim1Store]: treesize reduction 33, result has 17.5 percent of original size
[2022-04-06 09:38:46,733 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26
[2022-04-06 09:38:46,775 INFO  L356             Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2022-04-06 09:38:46,775 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20
[2022-04-06 09:38:46,802 INFO  L356             Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2022-04-06 09:38:46,802 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20
[2022-04-06 09:38:46,835 INFO  L356             Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2022-04-06 09:38:46,836 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20
[2022-04-06 09:38:46,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 09:38:46,918 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 09:38:47,984 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 93
[2022-04-06 09:38:48,287 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2080898790 treesize of output 2080374502