/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/nla-digbench-scaling/hard-u_unwindbound100.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-6c470ae
[2022-02-15 02:29:56,292 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-15 02:29:56,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-15 02:29:56,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-15 02:29:56,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-15 02:29:56,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-15 02:29:56,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-15 02:29:56,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-15 02:29:56,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-15 02:29:56,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-15 02:29:56,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-15 02:29:56,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-15 02:29:56,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-15 02:29:56,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-15 02:29:56,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-15 02:29:56,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-15 02:29:56,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-15 02:29:56,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-15 02:29:56,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-15 02:29:56,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-15 02:29:56,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-15 02:29:56,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-15 02:29:56,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-15 02:29:56,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-15 02:29:56,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-15 02:29:56,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-15 02:29:56,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-15 02:29:56,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2022-02-15 02:29:56,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-15 02:29:56,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-15 02:29:56,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-15 02:29:56,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-15 02:29:56,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-15 02:29:56,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-15 02:29:56,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2022-02-15 02:29:56,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-15 02:29:56,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-15 02:29:56,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2022-02-15 02:29:56,384 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-15 02:29:56,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-15 02:29:56,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-15 02:29:56,386 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-15 02:29:56,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-15 02:29:56,386 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-15 02:29:56,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-15 02:29:56,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-15 02:29:56,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-15 02:29:56,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-15 02:29:56,387 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-15 02:29:56,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-15 02:29:56,387 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-15 02:29:56,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-15 02:29:56,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-15 02:29:56,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-15 02:29:56,388 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-15 02:29:56,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-15 02:29:56,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-15 02:29:56,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-15 02:29:56,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2022-02-15 02:29:56,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-15 02:29:56,388 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2022-02-15 02:29:56,388 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-02-15 02:29:56,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-15 02:29:56,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-15 02:29:56,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-15 02:29:56,611 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-15 02:29:56,612 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-15 02:29:56,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/hard-u_unwindbound100.c
[2022-02-15 02:29:56,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/048e29176/1f41f5cbf0dd4cc483ddd64ded804456/FLAG2e5a2a3bf
[2022-02-15 02:29:57,021 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-15 02:29:57,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-u_unwindbound100.c
[2022-02-15 02:29:57,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/048e29176/1f41f5cbf0dd4cc483ddd64ded804456/FLAG2e5a2a3bf
[2022-02-15 02:29:57,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/048e29176/1f41f5cbf0dd4cc483ddd64ded804456
[2022-02-15 02:29:57,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-15 02:29:57,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-15 02:29:57,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-15 02:29:57,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-15 02:29:57,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-15 02:29:57,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a08dc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57, skipping insertion in model container
[2022-02-15 02:29:57,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-15 02:29:57,459 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-15 02:29:57,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-u_unwindbound100.c[537,550]
[2022-02-15 02:29:57,591 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-15 02:29:57,596 INFO L203 MainTranslator]: Completed pre-run
[2022-02-15 02:29:57,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-u_unwindbound100.c[537,550]
[2022-02-15 02:29:57,608 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-15 02:29:57,616 INFO L208 MainTranslator]: Completed translation
[2022-02-15 02:29:57,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57 WrapperNode
[2022-02-15 02:29:57,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-15 02:29:57,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-15 02:29:57,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-15 02:29:57,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-15 02:29:57,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-15 02:29:57,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-15 02:29:57,637 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-15 02:29:57,637 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-15 02:29:57,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (1/1) ...
[2022-02-15 02:29:57,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-15 02:29:57,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-15 02:29:57,664 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)
[2022-02-15 02:29:57,666 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
[2022-02-15 02:29:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-02-15 02:29:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-15 02:29:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-02-15 02:29:57,695 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-02-15 02:29:57,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-02-15 02:29:57,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-02-15 02:29:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-02-15 02:29:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-02-15 02:29:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-02-15 02:29:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-15 02:29:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2022-02-15 02:29:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-02-15 02:29:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-02-15 02:29:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-02-15 02:29:57,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-02-15 02:29:57,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-15 02:29:57,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-15 02:29:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-15 02:29:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-15 02:29:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-15 02:29:57,744 INFO L234 CfgBuilder]: Building ICFG
[2022-02-15 02:29:57,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-15 02:29:57,848 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-15 02:29:57,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-15 02:29:57,853 INFO L299 CfgBuilder]: Removed 2 assume(true) statements.
[2022-02-15 02:29:57,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:29:57 BoogieIcfgContainer
[2022-02-15 02:29:57,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-15 02:29:57,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-15 02:29:57,856 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-15 02:29:57,858 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-15 02:29:57,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:29:57" (1/3) ...
[2022-02-15 02:29:57,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3728687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:29:57, skipping insertion in model container
[2022-02-15 02:29:57,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:29:57" (2/3) ...
[2022-02-15 02:29:57,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3728687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:29:57, skipping insertion in model container
[2022-02-15 02:29:57,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:29:57" (3/3) ...
[2022-02-15 02:29:57,860 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound100.c
[2022-02-15 02:29:57,863 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-02-15 02:29:57,863 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-15 02:29:57,891 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-15 02:29:57,896 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
[2022-02-15 02:29:57,896 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-02-15 02:29:57,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2022-02-15 02:29:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-02-15 02:29:57,912 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 02:29:57,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 02:29:57,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 02:29:57,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 02:29:57,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1191571617, now seen corresponding path program 1 times
[2022-02-15 02:29:57,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 02:29:57,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070544613]
[2022-02-15 02:29:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 02:29:57,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 02:29:57,995 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 02:29:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:29:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 02:29:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:29:58,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-02-15 02:29:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:29:58,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 02:29:58,132 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 02:29:58,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070544613]
[2022-02-15 02:29:58,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2070544613] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 02:29:58,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 02:29:58,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-15 02:29:58,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324628170]
[2022-02-15 02:29:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 02:29:58,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-15 02:29:58,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 02:29:58,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-15 02:29:58,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-15 02:29:58,165 INFO L87 Difference]: Start difference. First operand has 37 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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)
[2022-02-15 02:29:58,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 02:29:58,284 INFO L93 Difference]: Finished difference Result 66 states and 101 transitions.
[2022-02-15 02:29:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-15 02:29:58,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 18
[2022-02-15 02:29:58,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 02:29:58,295 INFO L225 Difference]: With dead ends: 66
[2022-02-15 02:29:58,295 INFO L226 Difference]: Without dead ends: 33
[2022-02-15 02:29:58,298 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
[2022-02-15 02:29:58,301 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-15 02:29:58,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 49 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-15 02:29:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2022-02-15 02:29:58,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32.
[2022-02-15 02:29:58,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-02-15 02:29:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions.
[2022-02-15 02:29:58,339 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 18
[2022-02-15 02:29:58,339 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 02:29:58,340 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions.
[2022-02-15 02:29:58,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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)
[2022-02-15 02:29:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions.
[2022-02-15 02:29:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-02-15 02:29:58,340 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 02:29:58,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 02:29:58,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-15 02:29:58,341 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 02:29:58,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 02:29:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash 336486197, now seen corresponding path program 1 times
[2022-02-15 02:29:58,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 02:29:58,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208103686]
[2022-02-15 02:29:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 02:29:58,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 02:29:58,344 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 02:29:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:29:58,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 02:29:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:29:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-02-15 02:29:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:29:58,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 02:29:58,457 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 02:29:58,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208103686]
[2022-02-15 02:29:58,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1208103686] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 02:29:58,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 02:29:58,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-15 02:29:58,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102276353]
[2022-02-15 02:29:58,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 02:29:58,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-15 02:29:58,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 02:29:58,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-15 02:29:58,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-15 02:29:58,460 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2022-02-15 02:29:58,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 02:29:58,591 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions.
[2022-02-15 02:29:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-15 02:29:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18
[2022-02-15 02:29:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 02:29:58,592 INFO L225 Difference]: With dead ends: 47
[2022-02-15 02:29:58,593 INFO L226 Difference]: Without dead ends: 45
[2022-02-15 02:29:58,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2022-02-15 02:29:58,594 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 28 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-15 02:29:58,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 96 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-15 02:29:58,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2022-02-15 02:29:58,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36.
[2022-02-15 02:29:58,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-02-15 02:29:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions.
[2022-02-15 02:29:58,613 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 18
[2022-02-15 02:29:58,614 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 02:29:58,614 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions.
[2022-02-15 02:29:58,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2022-02-15 02:29:58,614 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions.
[2022-02-15 02:29:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2022-02-15 02:29:58,615 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 02:29:58,615 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]
[2022-02-15 02:29:58,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-15 02:29:58,615 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 02:29:58,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 02:29:58,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1819267188, now seen corresponding path program 1 times
[2022-02-15 02:29:58,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 02:29:58,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225410980]
[2022-02-15 02:29:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 02:29:58,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 02:29:58,618 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 02:29:58,628 WARN L132 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2022-02-15 02:29:58,628 INFO L628 BasicCegarLoop]: Counterexample might be feasible
[2022-02-15 02:29:58,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-02-15 02:29:58,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-15 02:29:58,636 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-02-15 02:29:58,638 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-15 02:29:58,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:29:58 BoogieIcfgContainer
[2022-02-15 02:29:58,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-15 02:29:58,647 INFO L158 Benchmark]: Toolchain (without parser) took 1211.63ms. Allocated memory was 263.2MB in the beginning and 370.1MB in the end (delta: 107.0MB). Free memory was 207.1MB in the beginning and 281.1MB in the end (delta: -74.0MB). Peak memory consumption was 31.8MB. Max. memory is 8.0GB.
[2022-02-15 02:29:58,647 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 263.2MB. Free memory is still 223.7MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-15 02:29:58,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.36ms. Allocated memory was 263.2MB in the beginning and 370.1MB in the end (delta: 107.0MB). Free memory was 206.9MB in the beginning and 339.2MB in the end (delta: -132.4MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB.
[2022-02-15 02:29:58,648 INFO L158 Benchmark]: Boogie Preprocessor took 18.64ms. Allocated memory is still 370.1MB. Free memory was 339.2MB in the beginning and 337.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-15 02:29:58,648 INFO L158 Benchmark]: RCFGBuilder took 217.97ms. Allocated memory is still 370.1MB. Free memory was 337.7MB in the beginning and 326.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-02-15 02:29:58,649 INFO L158 Benchmark]: TraceAbstraction took 790.61ms. Allocated memory is still 370.1MB. Free memory was 326.1MB in the beginning and 281.1MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB.
[2022-02-15 02:29:58,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 263.2MB. Free memory is still 223.7MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 178.36ms. Allocated memory was 263.2MB in the beginning and 370.1MB in the end (delta: 107.0MB). Free memory was 206.9MB in the beginning and 339.2MB in the end (delta: -132.4MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 18.64ms. Allocated memory is still 370.1MB. Free memory was 339.2MB in the beginning and 337.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 217.97ms. Allocated memory is still 370.1MB. Free memory was 337.7MB in the beginning and 326.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* TraceAbstraction took 790.61ms. Allocated memory is still 370.1MB. Free memory was 326.1MB in the beginning and 281.1MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. 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: 17]: 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:
[L22] int counter = 0;
[L24] unsigned int A, B;
[L25] unsigned int r, d, p, q;
[L26] A = __VERIFIER_nondet_uint()
[L27] B = __VERIFIER_nondet_uint()
[L28] CALL assume_abort_if_not(B >= 1)
[L12] COND FALSE !(!cond)
[L28] RET assume_abort_if_not(B >= 1)
[L30] r = A
[L31] d = B
[L32] p = 1
[L33] q = 0
[L35] EXPR counter++
[L35] COND FALSE !(counter++<100)
[L45] EXPR counter++
[L45] COND FALSE !(counter++<100)
[L59] CALL __VERIFIER_assert(A == d*q + r)
[L15] COND TRUE !(cond)
[L17] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 145 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 84 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 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
[2022-02-15 02:29:58,676 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...