/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/array-patterns/array19_pattern.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-d966a43
[2022-01-31 19:45:54,860 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-01-31 19:45:54,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-31 19:45:54,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-31 19:45:54,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-31 19:45:54,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-31 19:45:54,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-31 19:45:54,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-31 19:45:54,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-31 19:45:54,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-31 19:45:54,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-01-31 19:45:54,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-31 19:45:54,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-31 19:45:54,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-31 19:45:54,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-31 19:45:54,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-31 19:45:54,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-31 19:45:54,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-31 19:45:54,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-31 19:45:54,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-31 19:45:54,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-31 19:45:54,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-31 19:45:54,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-01-31 19:45:54,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-31 19:45:54,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-31 19:45:54,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-31 19:45:54,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-31 19:45:54,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-31 19:45:54,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-31 19:45:54,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-31 19:45:54,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-31 19:45:54,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-31 19:45:54,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-31 19:45:54,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-31 19:45:54,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-31 19:45:54,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-31 19:45:54,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-31 19:45:54,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-31 19:45:54,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-31 19:45:54,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-31 19:45:54,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-01-31 19:45:54,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2022-01-31 19:45:54,961 INFO L113 SettingsManager]: Loading preferences was successful
[2022-01-31 19:45:54,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-31 19:45:54,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-31 19:45:54,962 INFO L138 SettingsManager]: * sizeof long=4
[2022-01-31 19:45:54,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-01-31 19:45:54,962 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-01-31 19:45:54,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-01-31 19:45:54,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-01-31 19:45:54,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-31 19:45:54,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-01-31 19:45:54,963 INFO L138 SettingsManager]: * sizeof long double=12
[2022-01-31 19:45:54,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-01-31 19:45:54,963 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-01-31 19:45:54,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-01-31 19:45:54,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-31 19:45:54,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-01-31 19:45:54,964 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-01-31 19:45:54,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-01-31 19:45:54,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 19:45:54,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-31 19:45:54,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2022-01-31 19:45:54,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-31 19:45:54,965 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2022-01-31 19:45:54,965 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-31 19:45:55,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-31 19:45:55,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-31 19:45:55,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-31 19:45:55,158 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-01-31 19:45:55,159 INFO L275 PluginConnector]: CDTParser initialized
[2022-01-31 19:45:55,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array19_pattern.c
[2022-01-31 19:45:55,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7635cee08/b3197d73288140628bcd5779031d8efe/FLAGafc3b34cc
[2022-01-31 19:45:55,590 INFO L306 CDTParser]: Found 1 translation units.
[2022-01-31 19:45:55,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array19_pattern.c
[2022-01-31 19:45:55,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7635cee08/b3197d73288140628bcd5779031d8efe/FLAGafc3b34cc
[2022-01-31 19:45:55,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7635cee08/b3197d73288140628bcd5779031d8efe
[2022-01-31 19:45:55,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-31 19:45:55,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-01-31 19:45:55,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-31 19:45:55,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-31 19:45:55,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-31 19:45:55,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ef4343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55, skipping insertion in model container
[2022-01-31 19:45:55,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-01-31 19:45:55,632 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-01-31 19:45:55,754 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-patterns/array19_pattern.c[1442,1455]
[2022-01-31 19:45:55,789 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 19:45:55,798 INFO L203 MainTranslator]: Completed pre-run
[2022-01-31 19:45:55,843 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-patterns/array19_pattern.c[1442,1455]
[2022-01-31 19:45:55,850 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 19:45:55,858 INFO L208 MainTranslator]: Completed translation
[2022-01-31 19:45:55,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55 WrapperNode
[2022-01-31 19:45:55,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-31 19:45:55,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-31 19:45:55,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-31 19:45:55,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-01-31 19:45:55,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-31 19:45:55,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-31 19:45:55,912 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-01-31 19:45:55,912 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-01-31 19:45:55,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (1/1) ...
[2022-01-31 19:45:55,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 19:45:55,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 19:45:55,942 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)
[2022-01-31 19:45:55,949 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
[2022-01-31 19:45:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-01-31 19:45:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-31 19:45:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-01-31 19:45:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-01-31 19:45:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-01-31 19:45:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-01-31 19:45:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-01-31 19:45:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-01-31 19:45:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-31 19:45:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-01-31 19:45:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-01-31 19:45:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-31 19:45:56,017 INFO L234 CfgBuilder]: Building ICFG
[2022-01-31 19:45:56,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-31 19:45:56,178 INFO L275 CfgBuilder]: Performing block encoding
[2022-01-31 19:45:56,182 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-31 19:45:56,182 INFO L299 CfgBuilder]: Removed 5 assume(true) statements.
[2022-01-31 19:45:56,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 07:45:56 BoogieIcfgContainer
[2022-01-31 19:45:56,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-31 19:45:56,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-31 19:45:56,184 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-01-31 19:45:56,191 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-01-31 19:45:56,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 07:45:55" (1/3) ...
[2022-01-31 19:45:56,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25267b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 07:45:56, skipping insertion in model container
[2022-01-31 19:45:56,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:45:55" (2/3) ...
[2022-01-31 19:45:56,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25267b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 07:45:56, skipping insertion in model container
[2022-01-31 19:45:56,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 07:45:56" (3/3) ...
[2022-01-31 19:45:56,192 INFO L111 eAbstractionObserver]: Analyzing ICFG array19_pattern.c
[2022-01-31 19:45:56,195 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-01-31 19:45:56,196 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-31 19:45:56,226 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-31 19:45:56,230 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=JORDAN
[2022-01-31 19:45:56,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-31 19:45:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 30 states have internal predecessors, (45), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-01-31 19:45:56,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2022-01-31 19:45:56,244 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 19:45:56,244 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]
[2022-01-31 19:45:56,244 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 19:45:56,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 19:45:56,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1815321502, now seen corresponding path program 1 times
[2022-01-31 19:45:56,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-01-31 19:45:56,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882536463]
[2022-01-31 19:45:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 19:45:56,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 19:45:56,289 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-01-31 19:45:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 19:45:56,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 19:45:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 19:45:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-01-31 19:45:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 19:45:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 19:45:56,417 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-01-31 19:45:56,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882536463]
[2022-01-31 19:45:56,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [882536463] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 19:45:56,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 19:45:56,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-31 19:45:56,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315834280]
[2022-01-31 19:45:56,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 19:45:56,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-31 19:45:56,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-01-31 19:45:56,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-31 19:45:56,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 19:45:56,445 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 30 states have internal predecessors, (45), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2022-01-31 19:45:56,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 19:45:56,539 INFO L93 Difference]: Finished difference Result 75 states and 110 transitions.
[2022-01-31 19:45:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-01-31 19:45:56,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20
[2022-01-31 19:45:56,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 19:45:56,546 INFO L225 Difference]: With dead ends: 75
[2022-01-31 19:45:56,546 INFO L226 Difference]: Without dead ends: 34
[2022-01-31 19:45:56,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 19:45:56,551 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 19:45:56,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 53 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 19:45:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2022-01-31 19:45:56,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34.
[2022-01-31 19:45:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-01-31 19:45:56,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions.
[2022-01-31 19:45:56,583 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 20
[2022-01-31 19:45:56,584 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 19:45:56,584 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions.
[2022-01-31 19:45:56,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2022-01-31 19:45:56,584 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions.
[2022-01-31 19:45:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2022-01-31 19:45:56,586 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 19:45:56,587 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 19:45:56,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-31 19:45:56,587 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 19:45:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 19:45:56,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1707268263, now seen corresponding path program 1 times
[2022-01-31 19:45:56,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-01-31 19:45:56,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017346633]
[2022-01-31 19:45:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 19:45:56,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 19:45:56,596 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-01-31 19:45:56,640 WARN L127 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2022-01-31 19:45:56,640 INFO L628 BasicCegarLoop]: Counterexample might be feasible
[2022-01-31 19:45:56,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-01-31 19:45:56,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-31 19:45:56,648 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-01-31 19:45:56,649 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-01-31 19:45:56,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 07:45:56 BoogieIcfgContainer
[2022-01-31 19:45:56,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-01-31 19:45:56,666 INFO L158 Benchmark]: Toolchain (without parser) took 1057.48ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 126.6MB in the beginning and 199.0MB in the end (delta: -72.4MB). Peak memory consumption was 18.6MB. Max. memory is 8.0GB.
[2022-01-31 19:45:56,667 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-01-31 19:45:56,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.14ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 126.3MB in the beginning and 245.6MB in the end (delta: -119.3MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB.
[2022-01-31 19:45:56,667 INFO L158 Benchmark]: Boogie Preprocessor took 42.31ms. Allocated memory is still 272.6MB. Free memory was 245.6MB in the beginning and 244.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-01-31 19:45:56,668 INFO L158 Benchmark]: RCFGBuilder took 271.21ms. Allocated memory is still 272.6MB. Free memory was 244.0MB in the beginning and 229.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2022-01-31 19:45:56,668 INFO L158 Benchmark]: TraceAbstraction took 481.68ms. Allocated memory is still 272.6MB. Free memory was 228.8MB in the beginning and 199.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB.
[2022-01-31 19:45:56,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 254.14ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 126.3MB in the beginning and 245.6MB in the end (delta: -119.3MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 42.31ms. Allocated memory is still 272.6MB. Free memory was 245.6MB in the beginning and 244.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 271.21ms. Allocated memory is still 272.6MB. Free memory was 244.0MB in the beginning and 229.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
* TraceAbstraction took 481.68ms. Allocated memory is still 272.6MB. Free memory was 228.8MB in the beginning and 199.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 35]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L39] signed long long ARR_SIZE ;
[L43] ARR_SIZE = (signed long long)__VERIFIER_nondet_short()
[L44] CALL assume_abort_if_not(ARR_SIZE > 0)
[L33] COND FALSE !(!cond)
[L44] RET assume_abort_if_not(ARR_SIZE > 0)
[L46] int array[ARR_SIZE][ARR_SIZE] ;
[L48] int row = 0, column = 0, num = -1 ;
[L49] signed long long sum = 0 ;
[L50] int temp ;
[L51] signed long long index1,index2 ;
[L53] row=0
[L53] COND FALSE !(row<ARR_SIZE)
[L57] COND TRUE 1
[L60] index1 = (signed long long)__VERIFIER_nondet_short()
[L61] index2 = (signed long long)__VERIFIER_nondet_short()
[L62] CALL assume_abort_if_not(index1>=0 && index1 < ARR_SIZE)
[L33] COND FALSE !(!cond)
[L62] RET assume_abort_if_not(index1>=0 && index1 < ARR_SIZE)
[L63] CALL assume_abort_if_not(index2>=0 && index2 < ARR_SIZE)
[L33] COND FALSE !(!cond)
[L63] RET assume_abort_if_not(index2>=0 && index2 < ARR_SIZE)
[L66] EXPR (index1+index2 == ARR_SIZE-1) ? num : array[index1][index2]
[L66] array[index1][index2] = (index1+index2 == ARR_SIZE-1) ? num : array[index1][index2]
[L67] EXPR (index1+index2 == ARR_SIZE-1) ? (num*num*num*num) : array[index1][ARR_SIZE-1-index2]
[L67] array[index1][ARR_SIZE-1-index2] = (index1+index2 == ARR_SIZE-1) ? (num*num*num*num) : array[index1][ARR_SIZE-1-index2]
[L70] temp = __VERIFIER_nondet_int()
[L71] COND TRUE temp == 0
[L74] row=0
[L74] COND FALSE !(row<ARR_SIZE)
[L78] CALL __VERIFIER_assert(sum == 0 || sum == 1)
[L35] COND TRUE !(cond)
[L35] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 49 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-01-31 19:45:56,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...