/usr/bin/java -ea -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/nla-digbench/freire1.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-34549b5
[2022-04-08 10:45:12,268 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-04-08 10:45:12,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-08 10:45:12,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-08 10:45:12,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-08 10:45:12,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-08 10:45:12,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-08 10:45:12,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-08 10:45:12,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-08 10:45:12,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-08 10:45:12,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-04-08 10:45:12,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-08 10:45:12,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-08 10:45:12,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-08 10:45:12,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-08 10:45:12,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-08 10:45:12,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-08 10:45:12,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-08 10:45:12,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-08 10:45:12,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-08 10:45:12,347 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-08 10:45:12,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-08 10:45:12,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-08 10:45:12,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-04-08 10:45:12,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-08 10:45:12,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-08 10:45:12,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-08 10:45:12,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-08 10:45:12,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-08 10:45:12,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-08 10:45:12,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-08 10:45:12,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-08 10:45:12,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-08 10:45:12,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-08 10:45:12,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-08 10:45:12,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-08 10:45:12,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-08 10:45:12,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-08 10:45:12,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-08 10:45:12,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-08 10:45:12,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-08 10:45:12,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-04-08 10:45:12,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf
[2022-04-08 10:45:12,377 INFO L113 SettingsManager]: Loading preferences was successful
[2022-04-08 10:45:12,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-08 10:45:12,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-08 10:45:12,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-04-08 10:45:12,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-04-08 10:45:12,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-04-08 10:45:12,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-08 10:45:12,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-04-08 10:45:12,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-04-08 10:45:12,380 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-04-08 10:45:12,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-04-08 10:45:12,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-08 10:45:12,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-04-08 10:45:12,380 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-04-08 10:45:12,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-04-08 10:45:12,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-08 10:45:12,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-08 10:45:12,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2022-04-08 10:45:12,381 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION
[2022-04-08 10:45:12,381 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL
[2022-04-08 10:45:12,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-08 10:45:12,381 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR
[2022-04-08 10:45:12,381 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-08 10:45:12,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-08 10:45:12,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-08 10:45:12,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-08 10:45:12,622 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-04-08 10:45:12,622 INFO L275 PluginConnector]: CDTParser initialized
[2022-04-08 10:45:12,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/freire1.c
[2022-04-08 10:45:12,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e2923b/5048fb4669a94caabab9378276cbdb8b/FLAG4bdc556f5
[2022-04-08 10:45:13,021 INFO L306 CDTParser]: Found 1 translation units.
[2022-04-08 10:45:13,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/freire1.c
[2022-04-08 10:45:13,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e2923b/5048fb4669a94caabab9378276cbdb8b/FLAG4bdc556f5
[2022-04-08 10:45:13,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e2923b/5048fb4669a94caabab9378276cbdb8b
[2022-04-08 10:45:13,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-08 10:45:13,053 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-04-08 10:45:13,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-08 10:45:13,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-08 10:45:13,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-08 10:45:13,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b57c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13, skipping insertion in model container
[2022-04-08 10:45:13,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-04-08 10:45:13,078 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-04-08 10:45:13,247 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/freire1.c[712,725]
[2022-04-08 10:45:13,269 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-08 10:45:13,277 INFO L203 MainTranslator]: Completed pre-run
[2022-04-08 10:45:13,286 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/freire1.c[712,725]
[2022-04-08 10:45:13,293 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-08 10:45:13,303 INFO L208 MainTranslator]: Completed translation
[2022-04-08 10:45:13,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13 WrapperNode
[2022-04-08 10:45:13,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-08 10:45:13,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-08 10:45:13,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-08 10:45:13,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-04-08 10:45:13,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-08 10:45:13,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-08 10:45:13,345 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-04-08 10:45:13,345 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-04-08 10:45:13,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (1/1) ...
[2022-04-08 10:45:13,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-08 10:45:13,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-08 10:45:13,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-04-08 10:45:13,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-04-08 10:45:13,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-08 10:45:13,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-08 10:45:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-08 10:45:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-04-08 10:45:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-08 10:45:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-04-08 10:45:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-04-08 10:45:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-08 10:45:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-08 10:45:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-08 10:45:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2022-04-08 10:45:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-04-08 10:45:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-08 10:45:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-04-08 10:45:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-08 10:45:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-08 10:45:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-08 10:45:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-04-08 10:45:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-04-08 10:45:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-08 10:45:13,466 INFO L234 CfgBuilder]: Building ICFG
[2022-04-08 10:45:13,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-08 10:45:13,589 INFO L275 CfgBuilder]: Performing block encoding
[2022-04-08 10:45:13,594 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-08 10:45:13,594 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-04-08 10:45:13,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 10:45:13 BoogieIcfgContainer
[2022-04-08 10:45:13,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-08 10:45:13,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-08 10:45:13,597 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-04-08 10:45:13,600 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-04-08 10:45:13,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 10:45:13" (1/3) ...
[2022-04-08 10:45:13,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7189e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 10:45:13, skipping insertion in model container
[2022-04-08 10:45:13,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 10:45:13" (2/3) ...
[2022-04-08 10:45:13,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7189e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 10:45:13, skipping insertion in model container
[2022-04-08 10:45:13,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 10:45:13" (3/3) ...
[2022-04-08 10:45:13,602 INFO L111 eAbstractionObserver]: Analyzing ICFG freire1.c
[2022-04-08 10:45:13,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-04-08 10:45:13,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-08 10:45:13,644 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-08 10:45:13,649 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, 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
[2022-04-08 10:45:13,649 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-08 10:45:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-08 10:45:13,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-08 10:45:13,667 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-08 10:45:13,667 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-08 10:45:13,667 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-08 10:45:13,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-08 10:45:13,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1469283919, now seen corresponding path program 1 times
[2022-04-08 10:45:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-08 10:45:13,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [66473183]
[2022-04-08 10:45:13,686 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-08 10:45:13,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1469283919, now seen corresponding path program 2 times
[2022-04-08 10:45:13,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-08 10:45:13,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238899010]
[2022-04-08 10:45:13,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 10:45:13,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-08 10:45:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 10:45:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-08 10:45:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-08 10:45:13,838 INFO L290 TraceCheckUtils]: 0: Hoare triple {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {24#true} is VALID
[2022-04-08 10:45:13,839 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} assume true; {24#true} is VALID
[2022-04-08 10:45:13,839 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} #53#return; {24#true} is VALID
[2022-04-08 10:45:13,852 INFO L272 TraceCheckUtils]: 0: Hoare triple {24#true} call ULTIMATE.init(); {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID
[2022-04-08 10:45:13,852 INFO L290 TraceCheckUtils]: 1: Hoare triple {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {24#true} is VALID
[2022-04-08 10:45:13,852 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} assume true; {24#true} is VALID
[2022-04-08 10:45:13,853 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} #53#return; {24#true} is VALID
[2022-04-08 10:45:13,853 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} call #t~ret5 := main(); {24#true} is VALID
[2022-04-08 10:45:13,853 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} havoc ~r~0;havoc ~a~0;havoc ~x~0;~a~0 := #t~nondet4;havoc #t~nondet4;~x~0 := ~someBinaryArithmeticDOUBLEoperation(~a~0, 2.0);~r~0 := 0; {24#true} is VALID
[2022-04-08 10:45:13,854 INFO L290 TraceCheckUtils]: 6: Hoare triple {24#true} assume false; {25#false} is VALID
[2022-04-08 10:45:13,854 INFO L272 TraceCheckUtils]: 7: Hoare triple {25#false} call __VERIFIER_assert((if 0 == ~convertDOUBLEToINT(~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~convertINTToDOUBLE(~r~0 * ~r~0), ~a~0), ~convertINTToDOUBLE(~r~0)), ~someBinaryArithmeticDOUBLEoperation(~convertINTToDOUBLE(2), ~x~0))) then 1 else 0)); {25#false} is VALID
[2022-04-08 10:45:13,854 INFO L290 TraceCheckUtils]: 8: Hoare triple {25#false} ~cond := #in~cond; {25#false} is VALID
[2022-04-08 10:45:13,854 INFO L290 TraceCheckUtils]: 9: Hoare triple {25#false} assume 0 == ~cond; {25#false} is VALID
[2022-04-08 10:45:13,854 INFO L290 TraceCheckUtils]: 10: Hoare triple {25#false} assume !false; {25#false} is VALID
[2022-04-08 10:45:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-08 10:45:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-08 10:45:13,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238899010]
[2022-04-08 10:45:13,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238899010] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-08 10:45:13,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-08 10:45:13,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-08 10:45:13,858 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace
[2022-04-08 10:45:13,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [66473183]
[2022-04-08 10:45:13,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [66473183] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-08 10:45:13,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-08 10:45:13,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-08 10:45:13,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81002831]
[2022-04-08 10:45:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-08 10:45:13,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2022-04-08 10:45:13,863 INFO L84 Accepts]: Finished accepts. word is accepted.
[2022-04-08 10:45:13,866 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 10:45:13,878 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 10:45:13,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-08 10:45:13,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION
[2022-04-08 10:45:13,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-08 10:45:13,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-08 10:45:13,894 INFO L87 Difference]: Start difference. First operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 10:45:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 10:45:13,986 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions.
[2022-04-08 10:45:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-04-08 10:45:13,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2022-04-08 10:45:13,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-08 10:45:13,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 10:45:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions.
[2022-04-08 10:45:13,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 10:45:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions.
[2022-04-08 10:45:13,997 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 46 transitions.
[2022-04-08 10:45:14,056 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 10:45:14,062 INFO L225 Difference]: With dead ends: 36
[2022-04-08 10:45:14,062 INFO L226 Difference]: Without dead ends: 16
[2022-04-08 10:45:14,064 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-08 10:45:14,066 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-08 10:45:14,067 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-08 10:45:14,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2022-04-08 10:45:14,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2022-04-08 10:45:14,087 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2022-04-08 10:45:14,088 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand has 16 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 10:45:14,088 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand has 16 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 10:45:14,088 INFO L87 Difference]: Start difference. First operand 16 states. Second operand has 16 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 10:45:14,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 10:45:14,091 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions.
[2022-04-08 10:45:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2022-04-08 10:45:14,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 10:45:14,091 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 10:45:14,091 INFO L74 IsIncluded]: Start isIncluded. First operand has 16 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 16 states.
[2022-04-08 10:45:14,092 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 16 states.
[2022-04-08 10:45:14,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-08 10:45:14,096 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions.
[2022-04-08 10:45:14,096 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2022-04-08 10:45:14,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-08 10:45:14,096 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2022-04-08 10:45:14,096 INFO L88 GeneralOperation]: Finished isEquivalent.
[2022-04-08 10:45:14,096 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2022-04-08 10:45:14,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-08 10:45:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2022-04-08 10:45:14,099 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11
[2022-04-08 10:45:14,099 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-08 10:45:14,101 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2022-04-08 10:45:14,102 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-08 10:45:14,102 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 16 states and 17 transitions.
[2022-04-08 10:45:14,119 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-04-08 10:45:14,119 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2022-04-08 10:45:14,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-08 10:45:14,120 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-08 10:45:14,120 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-08 10:45:14,120 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-08 10:45:14,120 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-08 10:45:14,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-08 10:45:14,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1467496459, now seen corresponding path program 1 times
[2022-04-08 10:45:14,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION
[2022-04-08 10:45:14,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1398023424]
[2022-04-08 10:45:14,121 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-04-08 10:45:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1467496459, now seen corresponding path program 2 times
[2022-04-08 10:45:14,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-08 10:45:14,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066264727]
[2022-04-08 10:45:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-08 10:45:14,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-08 10:45:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-08 10:45:14,143 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-08 10:45:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-08 10:45:14,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-04-08 10:45:14,166 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace
[2022-04-08 10:45:14,166 INFO L618 BasicCegarLoop]: Counterexample is feasible
[2022-04-08 10:45:14,168 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-04-08 10:45:14,169 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-08 10:45:14,175 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2]
[2022-04-08 10:45:14,178 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-04-08 10:45:14,186 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation
[2022-04-08 10:45:14,187 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation
[2022-04-08 10:45:14,187 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2022-04-08 10:45:14,187 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2022-04-08 10:45:14,187 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L31-2 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L31-2 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L31-2 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation
[2022-04-08 10:45:14,188 WARN L170 areAnnotationChecker]: L31-3 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L31-3 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation
[2022-04-08 10:45:14,189 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation
[2022-04-08 10:45:14,190 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing.
[2022-04-08 10:45:14,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 10:45:14 BoogieIcfgContainer
[2022-04-08 10:45:14,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-04-08 10:45:14,195 INFO L158 Benchmark]: Toolchain (without parser) took 1141.53ms. Allocated memory is still 174.1MB. Free memory was 124.2MB in the beginning and 96.8MB in the end (delta: 27.5MB). Peak memory consumption was 27.7MB. Max. memory is 8.0GB.
[2022-04-08 10:45:14,196 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 141.2MB in the beginning and 141.1MB in the end (delta: 76.5kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-04-08 10:45:14,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.12ms. Allocated memory is still 174.1MB. Free memory was 124.0MB in the beginning and 149.2MB in the end (delta: -25.2MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB.
[2022-04-08 10:45:14,199 INFO L158 Benchmark]: Boogie Preprocessor took 39.35ms. Allocated memory is still 174.1MB. Free memory was 149.2MB in the beginning and 147.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-04-08 10:45:14,200 INFO L158 Benchmark]: RCFGBuilder took 250.47ms. Allocated memory is still 174.1MB. Free memory was 147.7MB in the beginning and 137.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-04-08 10:45:14,201 INFO L158 Benchmark]: TraceAbstraction took 596.91ms. Allocated memory is still 174.1MB. Free memory was 137.0MB in the beginning and 96.8MB in the end (delta: 40.2MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB.
[2022-04-08 10:45:14,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 141.2MB in the beginning and 141.1MB in the end (delta: 76.5kB). There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 249.12ms. Allocated memory is still 174.1MB. Free memory was 124.0MB in the beginning and 149.2MB in the end (delta: -25.2MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 39.35ms. Allocated memory is still 174.1MB. Free memory was 149.2MB in the beginning and 147.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 250.47ms. Allocated memory is still 174.1MB. Free memory was 147.7MB in the beginning and 137.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* TraceAbstraction took 596.91ms. Allocated memory is still 174.1MB. Free memory was 137.0MB in the beginning and 96.8MB in the end (delta: 40.2MB). Peak memory consumption was 40.9MB. 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: 19]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of to_int at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 28.
Possible FailurePath:
[L25] int r;
[L26] double a, x;
[L27] a = __VERIFIER_nondet_double()
[L28] x = a / 2.0
[L29] r = 0
[L31] COND TRUE 1
[L32] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0)
[L17] COND TRUE !(cond)
[L19] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 20 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-04-08 10:45:14,231 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...