/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/dijkstra-u_valuebound10.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-6c470ae
[2022-02-15 02:27:09,136 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-15 02:27:09,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-15 02:27:09,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-15 02:27:09,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-15 02:27:09,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-15 02:27:09,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-15 02:27:09,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-15 02:27:09,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-15 02:27:09,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-15 02:27:09,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-15 02:27:09,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-15 02:27:09,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-15 02:27:09,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-15 02:27:09,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-15 02:27:09,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-15 02:27:09,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-15 02:27:09,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-15 02:27:09,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-15 02:27:09,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-15 02:27:09,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-15 02:27:09,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-15 02:27:09,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-15 02:27:09,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-15 02:27:09,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-15 02:27:09,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-15 02:27:09,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-15 02:27:09,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2022-02-15 02:27:09,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-15 02:27:09,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-15 02:27:09,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-15 02:27:09,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-15 02:27:09,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-15 02:27:09,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-15 02:27:09,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-15 02:27:09,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2022-02-15 02:27:09,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-15 02:27:09,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-15 02:27:09,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2022-02-15 02:27:09,239 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-15 02:27:09,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-15 02:27:09,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-15 02:27:09,240 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-15 02:27:09,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-15 02:27:09,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-15 02:27:09,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-15 02:27:09,242 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-15 02:27:09,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-15 02:27:09,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-15 02:27:09,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-15 02:27:09,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2022-02-15 02:27:09,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-15 02:27:09,242 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2022-02-15 02:27:09,243 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-02-15 02:27:09,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-15 02:27:09,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-15 02:27:09,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-15 02:27:09,440 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-15 02:27:09,440 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-15 02:27:09,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/dijkstra-u_valuebound10.c
[2022-02-15 02:27:09,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12a89501/e29b975ef58a4a51befaea2e9b15161e/FLAG2cd70f671
[2022-02-15 02:27:09,957 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-15 02:27:09,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/dijkstra-u_valuebound10.c
[2022-02-15 02:27:09,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12a89501/e29b975ef58a4a51befaea2e9b15161e/FLAG2cd70f671
[2022-02-15 02:27:09,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12a89501/e29b975ef58a4a51befaea2e9b15161e
[2022-02-15 02:27:09,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-15 02:27:09,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-15 02:27:09,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-15 02:27:09,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-15 02:27:09,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-15 02:27:09,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:27:09" (1/1) ...
[2022-02-15 02:27:09,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22827a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:09, skipping insertion in model container
[2022-02-15 02:27:09,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:27:09" (1/1) ...
[2022-02-15 02:27:09,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-15 02:27:10,010 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-15 02:27:10,168 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/dijkstra-u_valuebound10.c[525,538]
[2022-02-15 02:27:10,205 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-15 02:27:10,210 INFO L203 MainTranslator]: Completed pre-run
[2022-02-15 02:27:10,220 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/dijkstra-u_valuebound10.c[525,538]
[2022-02-15 02:27:10,240 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-15 02:27:10,249 INFO L208 MainTranslator]: Completed translation
[2022-02-15 02:27:10,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10 WrapperNode
[2022-02-15 02:27:10,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-15 02:27:10,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-15 02:27:10,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-15 02:27:10,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-15 02:27:10,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (1/1) ...
[2022-02-15 02:27:10,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (1/1) ...
[2022-02-15 02:27:10,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (1/1) ...
[2022-02-15 02:27:10,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (1/1) ...
[2022-02-15 02:27:10,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (1/1) ...
[2022-02-15 02:27:10,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (1/1) ...
[2022-02-15 02:27:10,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (1/1) ...
[2022-02-15 02:27:10,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-15 02:27:10,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-15 02:27:10,293 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-15 02:27:10,293 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-15 02:27:10,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (1/1) ...
[2022-02-15 02:27:10,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-15 02:27:10,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-15 02:27:10,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-15 02:27:10,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-15 02:27:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-02-15 02:27:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-15 02:27:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-02-15 02:27:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-02-15 02:27:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-02-15 02:27:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-02-15 02:27:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-02-15 02:27:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-15 02:27:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-15 02:27:10,418 INFO L234 CfgBuilder]: Building ICFG
[2022-02-15 02:27:10,419 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-15 02:27:10,561 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-15 02:27:10,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-15 02:27:10,565 INFO L299 CfgBuilder]: Removed 2 assume(true) statements.
[2022-02-15 02:27:10,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:27:10 BoogieIcfgContainer
[2022-02-15 02:27:10,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-15 02:27:10,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-15 02:27:10,568 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-15 02:27:10,570 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-15 02:27:10,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:27:09" (1/3) ...
[2022-02-15 02:27:10,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b71b370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:27:10, skipping insertion in model container
[2022-02-15 02:27:10,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:27:10" (2/3) ...
[2022-02-15 02:27:10,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b71b370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:27:10, skipping insertion in model container
[2022-02-15 02:27:10,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:27:10" (3/3) ...
[2022-02-15 02:27:10,572 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound10.c
[2022-02-15 02:27:10,575 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-02-15 02:27:10,575 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-15 02:27:10,601 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-15 02:27:10,607 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN
[2022-02-15 02:27:10,607 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-02-15 02:27:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2022-02-15 02:27:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2022-02-15 02:27:10,624 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 02:27:10,625 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]
[2022-02-15 02:27:10,625 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 02:27:10,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 02:27:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash 223850557, now seen corresponding path program 1 times
[2022-02-15 02:27:10,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 02:27:10,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406886297]
[2022-02-15 02:27:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 02:27:10,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 02:27:10,671 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 02:27:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 02:27:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-02-15 02:27:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2022-02-15 02:27:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:10,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-15 02:27:10,798 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 02:27:10,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406886297]
[2022-02-15 02:27:10,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [406886297] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 02:27:10,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 02:27:10,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-15 02:27:10,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587057528]
[2022-02-15 02:27:10,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 02:27:10,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-15 02:27:10,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 02:27:10,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-15 02:27:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-15 02:27:10,843 INFO L87 Difference]: Start difference. First operand has 38 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (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)
[2022-02-15 02:27:12,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-02-15 02:27:13,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 02:27:13,733 INFO L93 Difference]: Finished difference Result 69 states and 113 transitions.
[2022-02-15 02:27:13,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-15 02:27:13,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (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 23
[2022-02-15 02:27:13,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 02:27:13,740 INFO L225 Difference]: With dead ends: 69
[2022-02-15 02:27:13,741 INFO L226 Difference]: Without dead ends: 33
[2022-02-15 02:27:13,743 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
[2022-02-15 02:27:13,748 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2022-02-15 02:27:13,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 42 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time]
[2022-02-15 02:27:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2022-02-15 02:27:13,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2022-02-15 02:27:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2022-02-15 02:27:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions.
[2022-02-15 02:27:13,787 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 23
[2022-02-15 02:27:13,787 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 02:27:13,787 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions.
[2022-02-15 02:27:13,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (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)
[2022-02-15 02:27:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions.
[2022-02-15 02:27:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2022-02-15 02:27:13,790 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 02:27:13,790 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, 1]
[2022-02-15 02:27:13,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-15 02:27:13,790 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 02:27:13,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 02:27:13,791 INFO L85 PathProgramCache]: Analyzing trace with hash -563604624, now seen corresponding path program 1 times
[2022-02-15 02:27:13,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 02:27:13,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404003303]
[2022-02-15 02:27:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 02:27:13,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 02:27:13,798 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 02:27:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 02:27:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-02-15 02:27:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:14,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2022-02-15 02:27:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-15 02:27:14,039 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 02:27:14,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404003303]
[2022-02-15 02:27:14,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [404003303] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 02:27:14,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 02:27:14,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-15 02:27:14,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461966492]
[2022-02-15 02:27:14,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 02:27:14,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-15 02:27:14,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 02:27:14,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-15 02:27:14,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-15 02:27:14,041 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-02-15 02:27:20,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-02-15 02:27:23,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-02-15 02:27:25,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-02-15 02:27:27,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-02-15 02:27:28,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 02:27:28,074 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions.
[2022-02-15 02:27:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-15 02:27:28,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24
[2022-02-15 02:27:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 02:27:28,076 INFO L225 Difference]: With dead ends: 68
[2022-02-15 02:27:28,076 INFO L226 Difference]: Without dead ends: 48
[2022-02-15 02:27:28,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2022-02-15 02:27:28,078 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 34 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 48 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time
[2022-02-15 02:27:28,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 58 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 210 Invalid, 4 Unknown, 0 Unchecked, 13.9s Time]
[2022-02-15 02:27:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2022-02-15 02:27:28,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2022-02-15 02:27:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 20 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2022-02-15 02:27:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions.
[2022-02-15 02:27:28,104 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 24
[2022-02-15 02:27:28,104 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 02:27:28,104 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions.
[2022-02-15 02:27:28,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-02-15 02:27:28,105 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions.
[2022-02-15 02:27:28,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2022-02-15 02:27:28,105 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 02:27:28,105 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 02:27:28,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-15 02:27:28,106 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 02:27:28,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 02:27:28,106 INFO L85 PathProgramCache]: Analyzing trace with hash -5094773, now seen corresponding path program 1 times
[2022-02-15 02:27:28,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 02:27:28,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871835133]
[2022-02-15 02:27:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 02:27:28,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 02:27:28,108 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 02:27:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:28,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 02:27:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:28,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-02-15 02:27:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:28,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2022-02-15 02:27:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 02:27:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-15 02:27:28,239 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 02:27:28,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871835133]
[2022-02-15 02:27:28,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [871835133] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 02:27:28,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 02:27:28,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-15 02:27:28,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118653125]
[2022-02-15 02:27:28,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 02:27:28,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-15 02:27:28,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 02:27:28,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-15 02:27:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-15 02:27:28,243 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-02-15 02:27:31,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-02-15 02:27:34,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-02-15 02:27:39,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-02-15 02:27:39,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 02:27:39,780 INFO L93 Difference]: Finished difference Result 76 states and 111 transitions.
[2022-02-15 02:27:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-15 02:27:39,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26
[2022-02-15 02:27:39,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 02:27:39,783 INFO L225 Difference]: With dead ends: 76
[2022-02-15 02:27:39,783 INFO L226 Difference]: Without dead ends: 72
[2022-02-15 02:27:39,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2022-02-15 02:27:39,784 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 37 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 76 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time
[2022-02-15 02:27:39,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 50 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 217 Invalid, 3 Unknown, 0 Unchecked, 11.4s Time]
[2022-02-15 02:27:39,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2022-02-15 02:27:39,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69.
[2022-02-15 02:27:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 33 states have internal predecessors, (39), 32 states have call successors, (32), 6 states have call predecessors, (32), 5 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29)
[2022-02-15 02:27:39,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 100 transitions.
[2022-02-15 02:27:39,812 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 100 transitions. Word has length 26
[2022-02-15 02:27:39,812 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 02:27:39,812 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 100 transitions.
[2022-02-15 02:27:39,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-02-15 02:27:39,812 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 100 transitions.
[2022-02-15 02:27:39,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2022-02-15 02:27:39,814 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 02:27:39,814 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 02:27:39,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-15 02:27:39,814 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 02:27:39,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 02:27:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2000886032, now seen corresponding path program 1 times
[2022-02-15 02:27:39,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 02:27:39,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190539712]
[2022-02-15 02:27:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 02:27:39,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 02:27:39,822 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 02:27:39,840 WARN L132 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2022-02-15 02:27:39,840 INFO L628 BasicCegarLoop]: Counterexample might be feasible
[2022-02-15 02:27:39,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-02-15 02:27:39,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-15 02:27:39,856 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2022-02-15 02:27:39,859 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-15 02:27:39,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:27:39 BoogieIcfgContainer
[2022-02-15 02:27:39,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-15 02:27:39,877 INFO L158 Benchmark]: Toolchain (without parser) took 29887.97ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 126.8MB in the beginning and 219.4MB in the end (delta: -92.5MB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-15 02:27:39,878 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-15 02:27:39,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.90ms. Allocated memory is still 180.4MB. Free memory was 126.6MB in the beginning and 151.5MB in the end (delta: -24.9MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB.
[2022-02-15 02:27:39,878 INFO L158 Benchmark]: Boogie Preprocessor took 41.92ms. Allocated memory is still 180.4MB. Free memory was 151.5MB in the beginning and 149.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-15 02:27:39,878 INFO L158 Benchmark]: RCFGBuilder took 274.01ms. Allocated memory is still 180.4MB. Free memory was 149.9MB in the beginning and 137.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-02-15 02:27:39,879 INFO L158 Benchmark]: TraceAbstraction took 29304.66ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 136.8MB in the beginning and 219.4MB in the end (delta: -82.6MB). Peak memory consumption was 4.9MB. Max. memory is 8.0GB.
[2022-02-15 02:27:39,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 261.90ms. Allocated memory is still 180.4MB. Free memory was 126.6MB in the beginning and 151.5MB in the end (delta: -24.9MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 41.92ms. Allocated memory is still 180.4MB. Free memory was 151.5MB in the beginning and 149.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 274.01ms. Allocated memory is still 180.4MB. Free memory was 149.9MB in the beginning and 137.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 29304.66ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 136.8MB in the beginning and 219.4MB in the end (delta: -82.6MB). Peak memory consumption was 4.9MB. 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: 14]: 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:
[L20] unsigned int n, p, q, r, h;
[L22] n = __VERIFIER_nondet_uint()
[L23] CALL assume_abort_if_not(n>=0 && n<=10)
[L9] COND FALSE !(!cond)
[L23] RET assume_abort_if_not(n>=0 && n<=10)
[L24] CALL assume_abort_if_not(n < 4294967295 / 4)
[L9] COND FALSE !(!cond)
[L24] RET assume_abort_if_not(n < 4294967295 / 4)
[L26] p = 0
[L27] q = 1
[L28] r = n
[L29] h = 0
[L30] COND TRUE 1
[L31] COND TRUE !(q <= n)
[L38] COND TRUE 1
[L39] CALL __VERIFIER_assert(r < 2 * p + q)
[L12] COND FALSE !(!(cond))
[L39] RET __VERIFIER_assert(r < 2 * p + q)
[L40] CALL __VERIFIER_assert(p*p + r*q == n*q)
[L12] COND FALSE !(!(cond))
[L40] RET __VERIFIER_assert(p*p + r*q == n*q)
[L41] CALL __VERIFIER_assert(h * h * h - 12 * h * n * q + 16 * n * p * q - h * q * q - 4 * p * q * q + 12 * h * q * r - 16 * p * q * r == 0)
[L12] COND TRUE !(cond)
[L14] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.3s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 28.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 28.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 137 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 137 mSolverCounterUnsat, 103 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, InterpolantAutomatonStates: 19, 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, 3 MinimizatonAttempts, 3 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
[2022-02-15 02:27:39,896 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...