/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops/eureka_05.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-d966a43
[2022-01-31 23:20:59,624 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-01-31 23:20:59,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-31 23:20:59,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-31 23:20:59,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-31 23:20:59,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-31 23:20:59,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-31 23:20:59,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-31 23:20:59,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-31 23:20:59,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-31 23:20:59,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-01-31 23:20:59,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-31 23:20:59,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-31 23:20:59,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-31 23:20:59,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-31 23:20:59,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-31 23:20:59,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-31 23:20:59,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-31 23:20:59,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-31 23:20:59,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-31 23:20:59,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-31 23:20:59,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-31 23:20:59,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-01-31 23:20:59,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-31 23:20:59,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-01-31 23:20:59,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2022-01-31 23:20:59,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2022-01-31 23:20:59,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-31 23:20:59,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-01-31 23:20:59,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf
[2022-01-31 23:20:59,737 INFO L113 SettingsManager]: Loading preferences was successful
[2022-01-31 23:20:59,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-31 23:20:59,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-31 23:20:59,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-01-31 23:20:59,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-01-31 23:20:59,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-01-31 23:20:59,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-31 23:20:59,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-01-31 23:20:59,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-01-31 23:20:59,739 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-01-31 23:20:59,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-01-31 23:20:59,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-31 23:20:59,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-01-31 23:20:59,740 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-01-31 23:20:59,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-01-31 23:20:59,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 23:20:59,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-31 23:20:59,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2022-01-31 23:20:59,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-31 23:20:59,741 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR
[2022-01-31 23:20:59,741 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-31 23:20:59,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-31 23:20:59,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-31 23:20:59,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-31 23:20:59,936 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-01-31 23:20:59,937 INFO L275 PluginConnector]: CDTParser initialized
[2022-01-31 23:20:59,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/eureka_05.i
[2022-01-31 23:20:59,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c2bc3c7/08bb61eb67a54e1d8902d02cdb3d1c04/FLAG461499baa
[2022-01-31 23:21:00,346 INFO L306 CDTParser]: Found 1 translation units.
[2022-01-31 23:21:00,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_05.i
[2022-01-31 23:21:00,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c2bc3c7/08bb61eb67a54e1d8902d02cdb3d1c04/FLAG461499baa
[2022-01-31 23:21:00,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c2bc3c7/08bb61eb67a54e1d8902d02cdb3d1c04
[2022-01-31 23:21:00,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-31 23:21:00,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-01-31 23:21:00,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-31 23:21:00,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-31 23:21:00,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-31 23:21:00,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb90abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00, skipping insertion in model container
[2022-01-31 23:21:00,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-01-31 23:21:00,389 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-01-31 23:21:00,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_05.i[810,823]
[2022-01-31 23:21:00,534 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 23:21:00,543 INFO L203 MainTranslator]: Completed pre-run
[2022-01-31 23:21:00,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_05.i[810,823]
[2022-01-31 23:21:00,583 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 23:21:00,597 INFO L208 MainTranslator]: Completed translation
[2022-01-31 23:21:00,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00 WrapperNode
[2022-01-31 23:21:00,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-31 23:21:00,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-31 23:21:00,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-31 23:21:00,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-01-31 23:21:00,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-31 23:21:00,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-31 23:21:00,660 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-01-31 23:21:00,660 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-01-31 23:21:00,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (1/1) ...
[2022-01-31 23:21:00,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 23:21:00,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 23:21:00,692 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 23:21:00,693 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 23:21:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-01-31 23:21:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-31 23:21:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-01-31 23:21:00,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-01-31 23:21:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure SelectionSort
[2022-01-31 23:21:00,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure SelectionSort
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-01-31 23:21:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-01-31 23:21:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-01-31 23:21:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-01-31 23:21:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-31 23:21:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-01-31 23:21:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-01-31 23:21:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-31 23:21:00,802 INFO L234 CfgBuilder]: Building ICFG
[2022-01-31 23:21:00,803 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-31 23:21:00,898 INFO L275 CfgBuilder]: Performing block encoding
[2022-01-31 23:21:00,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-31 23:21:00,902 INFO L299 CfgBuilder]: Removed 4 assume(true) statements.
[2022-01-31 23:21:00,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:21:00 BoogieIcfgContainer
[2022-01-31 23:21:00,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-31 23:21:00,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-31 23:21:00,904 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-01-31 23:21:00,906 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-01-31 23:21:00,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:21:00" (1/3) ...
[2022-01-31 23:21:00,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65ca6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:21:00, skipping insertion in model container
[2022-01-31 23:21:00,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:00" (2/3) ...
[2022-01-31 23:21:00,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65ca6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:21:00, skipping insertion in model container
[2022-01-31 23:21:00,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:21:00" (3/3) ...
[2022-01-31 23:21:00,908 INFO L111 eAbstractionObserver]: Analyzing ICFG eureka_05.i
[2022-01-31 23:21:00,911 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-01-31 23:21:00,911 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-31 23:21:00,959 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-31 23:21:00,963 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=QVASR
[2022-01-31 23:21:00,964 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-31 23:21:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-01-31 23:21:00,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-01-31 23:21:00,977 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 23:21:00,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 23:21:00,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 23:21:00,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 23:21:00,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1995632546, now seen corresponding path program 1 times
[2022-01-31 23:21:00,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-01-31 23:21:00,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344342294]
[2022-01-31 23:21:00,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 23:21:00,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 23:21:01,025 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-01-31 23:21:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 23:21:01,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 23:21:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 23:21:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2022-01-31 23:21:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 23:21:01,171 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 23:21:01,173 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-01-31 23:21:01,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344342294]
[2022-01-31 23:21:01,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [344342294] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 23:21:01,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 23:21:01,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-31 23:21:01,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001180728]
[2022-01-31 23:21:01,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 23:21:01,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-31 23:21:01,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-01-31 23:21:01,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-31 23:21:01,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-31 23:21:01,212 INFO L87 Difference]: Start difference. First operand has 34 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-01-31 23:21:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 23:21:01,361 INFO L93 Difference]: Finished difference Result 77 states and 109 transitions.
[2022-01-31 23:21:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-01-31 23:21:01,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18
[2022-01-31 23:21:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 23:21:01,374 INFO L225 Difference]: With dead ends: 77
[2022-01-31 23:21:01,374 INFO L226 Difference]: Without dead ends: 43
[2022-01-31 23:21:01,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-31 23:21:01,380 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 67 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 23:21:01,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 30 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 23:21:01,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2022-01-31 23:21:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 29.
[2022-01-31 23:21:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-01-31 23:21:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions.
[2022-01-31 23:21:01,427 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 18
[2022-01-31 23:21:01,427 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 23:21:01,428 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions.
[2022-01-31 23:21:01,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-01-31 23:21:01,428 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions.
[2022-01-31 23:21:01,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-01-31 23:21:01,430 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 23:21:01,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 23:21:01,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-31 23:21:01,431 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 23:21:01,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 23:21:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1221136232, now seen corresponding path program 1 times
[2022-01-31 23:21:01,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-01-31 23:21:01,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249594049]
[2022-01-31 23:21:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 23:21:01,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 23:21:01,443 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-01-31 23:21:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 23:21:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 23:21:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 23:21:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2022-01-31 23:21:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 23:21:01,550 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 23:21:01,550 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-01-31 23:21:01,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249594049]
[2022-01-31 23:21:01,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [249594049] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 23:21:01,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 23:21:01,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-31 23:21:01,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429716082]
[2022-01-31 23:21:01,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 23:21:01,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-31 23:21:01,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-01-31 23:21:01,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-31 23:21:01,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-31 23:21:01,552 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-01-31 23:21:01,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 23:21:01,655 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions.
[2022-01-31 23:21:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-01-31 23:21:01,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18
[2022-01-31 23:21:01,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 23:21:01,658 INFO L225 Difference]: With dead ends: 59
[2022-01-31 23:21:01,658 INFO L226 Difference]: Without dead ends: 38
[2022-01-31 23:21:01,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2022-01-31 23:21:01,662 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 48 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 23:21:01,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 25 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 23:21:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2022-01-31 23:21:01,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30.
[2022-01-31 23:21:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-01-31 23:21:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions.
[2022-01-31 23:21:01,674 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18
[2022-01-31 23:21:01,674 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 23:21:01,675 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions.
[2022-01-31 23:21:01,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-01-31 23:21:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions.
[2022-01-31 23:21:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2022-01-31 23:21:01,676 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 23:21:01,677 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 23:21:01,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-31 23:21:01,679 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 23:21:01,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 23:21:01,682 INFO L85 PathProgramCache]: Analyzing trace with hash -957735862, now seen corresponding path program 1 times
[2022-01-31 23:21:01,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-01-31 23:21:01,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114477606]
[2022-01-31 23:21:01,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 23:21:01,699 ERROR L252 FreeRefinementEngine]: Caught unknown exception: Undeclared function symbol (select Real Int)
[2022-01-31 23:21:01,699 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2022-01-31 23:21:01,699 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (select Real Int)
at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:505)
at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:426)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.select(SmtUtils.java:1520)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1465)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1374)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.convertApplicationTerm(SmtUtils.java:1363)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.convertApplicationTerm(Substitution.java:53)
at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339)
at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115)
at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106)
at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59)
at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.getUpdates(QvasrAbstractor.java:1229)
at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.computeAbstraction(QvasrAbstractor.java:106)
at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:133)
at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:79)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:87)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:210)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.<init>(AcceleratedInterpolation.java:185)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:88)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:76)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:156)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2022-01-31 23:21:01,703 INFO L158 Benchmark]: Toolchain (without parser) took 1338.72ms. Allocated memory was 229.6MB in the beginning and 323.0MB in the end (delta: 93.3MB). Free memory was 176.8MB in the beginning and 235.2MB in the end (delta: -58.4MB). Peak memory consumption was 34.7MB. Max. memory is 8.0GB.
[2022-01-31 23:21:01,703 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 229.6MB. Free memory is still 193.5MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-01-31 23:21:01,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.61ms. Allocated memory was 229.6MB in the beginning and 323.0MB in the end (delta: 93.3MB). Free memory was 176.6MB in the beginning and 296.0MB in the end (delta: -119.4MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB.
[2022-01-31 23:21:01,704 INFO L158 Benchmark]: Boogie Preprocessor took 61.24ms. Allocated memory is still 323.0MB. Free memory was 296.0MB in the beginning and 294.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-01-31 23:21:01,705 INFO L158 Benchmark]: RCFGBuilder took 243.19ms. Allocated memory is still 323.0MB. Free memory was 294.5MB in the beginning and 281.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-01-31 23:21:01,705 INFO L158 Benchmark]: TraceAbstraction took 798.07ms. Allocated memory is still 323.0MB. Free memory was 281.9MB in the beginning and 235.2MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB.
[2022-01-31 23:21:01,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.09ms. Allocated memory is still 229.6MB. Free memory is still 193.5MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 232.61ms. Allocated memory was 229.6MB in the beginning and 323.0MB in the end (delta: 93.3MB). Free memory was 176.6MB in the beginning and 296.0MB in the end (delta: -119.4MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 61.24ms. Allocated memory is still 323.0MB. Free memory was 296.0MB in the beginning and 294.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 243.19ms. Allocated memory is still 323.0MB. Free memory was 294.5MB in the beginning and 281.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 798.07ms. Allocated memory is still 323.0MB. Free memory was 281.9MB in the beginning and 235.2MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (select Real Int)
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (select Real Int): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:505)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2022-01-31 23:21:01,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...