/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/egcd-ll_unwindbound50.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-d966a43
[2022-01-31 21:52:16,531 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-01-31 21:52:16,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-31 21:52:16,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-31 21:52:16,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-31 21:52:16,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-31 21:52:16,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-31 21:52:16,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-31 21:52:16,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-31 21:52:16,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-31 21:52:16,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-01-31 21:52:16,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-31 21:52:16,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-31 21:52:16,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-31 21:52:16,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-31 21:52:16,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-31 21:52:16,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-31 21:52:16,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-31 21:52:16,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-31 21:52:16,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-31 21:52:16,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-31 21:52:16,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-31 21:52:16,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-01-31 21:52:16,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-31 21:52:16,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-31 21:52:16,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-31 21:52:16,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-31 21:52:16,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-31 21:52:16,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-31 21:52:16,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-31 21:52:16,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-31 21:52:16,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-31 21:52:16,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2022-01-31 21:52:16,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-31 21:52:16,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-31 21:52:16,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2022-01-31 21:52:16,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-31 21:52:16,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-01-31 21:52:16,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2022-01-31 21:52:16,637 INFO L113 SettingsManager]: Loading preferences was successful
[2022-01-31 21:52:16,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-31 21:52:16,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-31 21:52:16,639 INFO L138 SettingsManager]: * sizeof long=4
[2022-01-31 21:52:16,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-01-31 21:52:16,639 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-01-31 21:52:16,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-01-31 21:52:16,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-01-31 21:52:16,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-31 21:52:16,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-01-31 21:52:16,640 INFO L138 SettingsManager]: * sizeof long double=12
[2022-01-31 21:52:16,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-01-31 21:52:16,640 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-01-31 21:52:16,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-01-31 21:52:16,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-31 21:52:16,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-01-31 21:52:16,640 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-01-31 21:52:16,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-01-31 21:52:16,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 21:52:16,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-31 21:52:16,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2022-01-31 21:52:16,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-31 21:52:16,641 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2022-01-31 21:52:16,641 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-31 21:52:16,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-31 21:52:16,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-31 21:52:16,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-31 21:52:16,841 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-01-31 21:52:16,843 INFO L275 PluginConnector]: CDTParser initialized
[2022-01-31 21:52:16,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/egcd-ll_unwindbound50.c
[2022-01-31 21:52:16,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b804e107/3abbdd0f862640059a7943260370169e/FLAG3ec1c6df7
[2022-01-31 21:52:17,226 INFO L306 CDTParser]: Found 1 translation units.
[2022-01-31 21:52:17,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/egcd-ll_unwindbound50.c
[2022-01-31 21:52:17,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b804e107/3abbdd0f862640059a7943260370169e/FLAG3ec1c6df7
[2022-01-31 21:52:17,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b804e107/3abbdd0f862640059a7943260370169e
[2022-01-31 21:52:17,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-31 21:52:17,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-01-31 21:52:17,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-31 21:52:17,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-31 21:52:17,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-31 21:52:17,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d4b52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17, skipping insertion in model container
[2022-01-31 21:52:17,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-01-31 21:52:17,668 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-01-31 21:52:17,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/egcd-ll_unwindbound50.c[489,502]
[2022-01-31 21:52:17,810 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 21:52:17,816 INFO L203 MainTranslator]: Completed pre-run
[2022-01-31 21:52:17,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/egcd-ll_unwindbound50.c[489,502]
[2022-01-31 21:52:17,831 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 21:52:17,841 INFO L208 MainTranslator]: Completed translation
[2022-01-31 21:52:17,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17 WrapperNode
[2022-01-31 21:52:17,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-31 21:52:17,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-31 21:52:17,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-31 21:52:17,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-01-31 21:52:17,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-31 21:52:17,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-31 21:52:17,883 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-01-31 21:52:17,884 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-01-31 21:52:17,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (1/1) ...
[2022-01-31 21:52:17,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 21:52:17,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 21:52:17,916 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 21:52:17,931 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 21:52:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-01-31 21:52:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-31 21:52:17,956 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-01-31 21:52:17,957 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-01-31 21:52:17,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-01-31 21:52:17,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-01-31 21:52:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-01-31 21:52:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-01-31 21:52:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-01-31 21:52:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-31 21:52:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-01-31 21:52:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-01-31 21:52:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-01-31 21:52:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-01-31 21:52:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-01-31 21:52:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-01-31 21:52:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-31 21:52:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-01-31 21:52:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-01-31 21:52:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-31 21:52:18,019 INFO L234 CfgBuilder]: Building ICFG
[2022-01-31 21:52:18,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-31 21:52:18,142 INFO L275 CfgBuilder]: Performing block encoding
[2022-01-31 21:52:18,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-31 21:52:18,148 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-31 21:52:18,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:52:18 BoogieIcfgContainer
[2022-01-31 21:52:18,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-31 21:52:18,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-31 21:52:18,164 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-01-31 21:52:18,181 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-01-31 21:52:18,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:52:17" (1/3) ...
[2022-01-31 21:52:18,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235459e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:52:18, skipping insertion in model container
[2022-01-31 21:52:18,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:52:17" (2/3) ...
[2022-01-31 21:52:18,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235459e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:52:18, skipping insertion in model container
[2022-01-31 21:52:18,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:52:18" (3/3) ...
[2022-01-31 21:52:18,184 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd-ll_unwindbound50.c
[2022-01-31 21:52:18,188 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-01-31 21:52:18,188 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-31 21:52:18,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-31 21:52:18,242 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN
[2022-01-31 21:52:18,242 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-31 21:52:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2022-01-31 21:52:18,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2022-01-31 21:52:18,267 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 21:52:18,268 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 21:52:18,268 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 21:52:18,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 21:52:18,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1226702723, now seen corresponding path program 1 times
[2022-01-31 21:52:18,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-01-31 21:52:18,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411463534]
[2022-01-31 21:52:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 21:52:18,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 21:52:18,321 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-01-31 21:52:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 21:52:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 21:52:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 21:52:18,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-01-31 21:52:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 21:52:18,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2022-01-31 21:52:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 21:52:18,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-01-31 21:52:18,480 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-01-31 21:52:18,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411463534]
[2022-01-31 21:52:18,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1411463534] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 21:52:18,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 21:52:18,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-31 21:52:18,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164753562]
[2022-01-31 21:52:18,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 21:52:18,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-31 21:52:18,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-01-31 21:52:18,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-31 21:52:18,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 21:52:18,518 INFO L87 Difference]: Start difference. First operand has 35 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-01-31 21:52:18,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 21:52:18,631 INFO L93 Difference]: Finished difference Result 64 states and 97 transitions.
[2022-01-31 21:52:18,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-01-31 21:52:18,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22
[2022-01-31 21:52:18,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 21:52:18,647 INFO L225 Difference]: With dead ends: 64
[2022-01-31 21:52:18,647 INFO L226 Difference]: Without dead ends: 31
[2022-01-31 21:52:18,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 21:52:18,656 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 21:52:18,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 45 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 21:52:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2022-01-31 21:52:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30.
[2022-01-31 21:52:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 16 states have internal predecessors, (19), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2022-01-31 21:52:18,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions.
[2022-01-31 21:52:18,704 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 22
[2022-01-31 21:52:18,704 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 21:52:18,704 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions.
[2022-01-31 21:52:18,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-01-31 21:52:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions.
[2022-01-31 21:52:18,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2022-01-31 21:52:18,707 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 21:52:18,707 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 21:52:18,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-31 21:52:18,708 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 21:52:18,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 21:52:18,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1346542817, now seen corresponding path program 1 times
[2022-01-31 21:52:18,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-01-31 21:52:18,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868470411]
[2022-01-31 21:52:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 21:52:18,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 21:52:18,721 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-01-31 21:52:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 21:52:18,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 21:52:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 21:52:18,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-01-31 21:52:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 21:52:18,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2022-01-31 21:52:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 21:52:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-01-31 21:52:18,886 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-01-31 21:52:18,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868470411]
[2022-01-31 21:52:18,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [868470411] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 21:52:18,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 21:52:18,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-31 21:52:18,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088211072]
[2022-01-31 21:52:18,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 21:52:18,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-31 21:52:18,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-01-31 21:52:18,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-31 21:52:18,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-31 21:52:18,889 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-01-31 21:52:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 21:52:18,998 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions.
[2022-01-31 21:52:18,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-01-31 21:52:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23
[2022-01-31 21:52:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 21:52:19,002 INFO L225 Difference]: With dead ends: 42
[2022-01-31 21:52:19,002 INFO L226 Difference]: Without dead ends: 32
[2022-01-31 21:52:19,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-01-31 21:52:19,007 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 13 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 21:52:19,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 65 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 21:52:19,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2022-01-31 21:52:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2022-01-31 21:52:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2022-01-31 21:52:19,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions.
[2022-01-31 21:52:19,027 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 23
[2022-01-31 21:52:19,028 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 21:52:19,030 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions.
[2022-01-31 21:52:19,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-01-31 21:52:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions.
[2022-01-31 21:52:19,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2022-01-31 21:52:19,036 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 21:52:19,036 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 21:52:19,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-31 21:52:19,036 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 21:52:19,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 21:52:19,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1348211113, now seen corresponding path program 1 times
[2022-01-31 21:52:19,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-01-31 21:52:19,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189264567]
[2022-01-31 21:52:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 21:52:19,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 21:52:19,039 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-01-31 21:52:19,056 WARN L127 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2022-01-31 21:52:19,056 INFO L628 BasicCegarLoop]: Counterexample might be feasible
[2022-01-31 21:52:19,068 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-01-31 21:52:19,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-31 21:52:19,075 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-01-31 21:52:19,077 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-01-31 21:52:19,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:52:19 BoogieIcfgContainer
[2022-01-31 21:52:19,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-01-31 21:52:19,093 INFO L158 Benchmark]: Toolchain (without parser) took 1450.65ms. Allocated memory is still 192.9MB. Free memory was 138.3MB in the beginning and 108.8MB in the end (delta: 29.6MB). Peak memory consumption was 29.9MB. Max. memory is 8.0GB.
[2022-01-31 21:52:19,093 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 155.0MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-01-31 21:52:19,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.08ms. Allocated memory is still 192.9MB. Free memory was 138.2MB in the beginning and 164.3MB in the end (delta: -26.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2022-01-31 21:52:19,094 INFO L158 Benchmark]: Boogie Preprocessor took 40.03ms. Allocated memory is still 192.9MB. Free memory was 164.3MB in the beginning and 163.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-01-31 21:52:19,096 INFO L158 Benchmark]: RCFGBuilder took 279.55ms. Allocated memory is still 192.9MB. Free memory was 162.8MB in the beginning and 152.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-01-31 21:52:19,097 INFO L158 Benchmark]: TraceAbstraction took 928.04ms. Allocated memory is still 192.9MB. Free memory was 151.8MB in the beginning and 108.8MB in the end (delta: 43.0MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB.
[2022-01-31 21:52:19,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 155.0MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 195.08ms. Allocated memory is still 192.9MB. Free memory was 138.2MB in the beginning and 164.3MB in the end (delta: -26.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 40.03ms. Allocated memory is still 192.9MB. Free memory was 164.3MB in the beginning and 163.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 279.55ms. Allocated memory is still 192.9MB. Free memory was 162.8MB in the beginning and 152.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* TraceAbstraction took 928.04ms. Allocated memory is still 192.9MB. Free memory was 151.8MB in the beginning and 108.8MB in the end (delta: 43.0MB). Peak memory consumption was 43.0MB. 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: 13]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L18] int counter = 0;
[L20] long long a, b, p, q, r, s;
[L21] int x, y;
[L22] x = __VERIFIER_nondet_int()
[L23] y = __VERIFIER_nondet_int()
[L24] CALL assume_abort_if_not(x >= 1)
[L8] COND FALSE !(!cond)
[L24] RET assume_abort_if_not(x >= 1)
[L25] CALL assume_abort_if_not(y >= 1)
[L8] COND FALSE !(!cond)
[L25] RET assume_abort_if_not(y >= 1)
[L27] a = x
[L28] b = y
[L29] p = 1
[L30] q = 0
[L31] r = 0
[L32] s = 1
[L34] EXPR counter++
[L34] COND TRUE counter++<50
[L35] CALL __VERIFIER_assert(1 == p * s - r * q)
[L11] COND TRUE !(cond)
[L13] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 76 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-01-31 21:52:19,133 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...