/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/sum04-2.i
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This is Ultimate 0.1.25-d623d84
[2020-07-20 17:42:28,337 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-20 17:42:28,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 17:42:28,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 17:42:28,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 17:42:28,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 17:42:28,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 17:42:28,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 17:42:28,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 17:42:28,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 17:42:28,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 17:42:28,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 17:42:28,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 17:42:28,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 17:42:28,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 17:42:28,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 17:42:28,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 17:42:28,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 17:42:28,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 17:42:28,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 17:42:28,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 17:42:28,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 17:42:28,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 17:42:28,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 17:42:28,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 17:42:28,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 17:42:28,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 17:42:28,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 17:42:28,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 17:42:28,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 17:42:28,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 17:42:28,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 17:42:28,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 17:42:28,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 17:42:28,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 17:42:28,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 17:42:28,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 17:42:28,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 17:42:28,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-20 17:42:28,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-20 17:42:28,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 17:42:28,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-20 17:42:28,406 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-20 17:42:28,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 17:42:28,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 17:42:28,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-20 17:42:28,408 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-20 17:42:28,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 17:42:28,409 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-20 17:42:28,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-20 17:42:28,409 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-20 17:42:28,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-20 17:42:28,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 17:42:28,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 17:42:28,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 17:42:28,410 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-20 17:42:28,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-20 17:42:28,411 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-20 17:42:28,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-20 17:42:28,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 17:42:28,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-20 17:42:28,411 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-20 17:42:28,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-20 17:42:28,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 17:42:28,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 17:42:28,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 17:42:28,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 17:42:28,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-20 17:42:28,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:28,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 17:42:28,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-20 17:42:28,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-20 17:42:28,691 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 17:42:28,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 17:42:28,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 17:42:28,713 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-20 17:42:28,716 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-20 17:42:28,718 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum04-2.i
[2020-07-20 17:42:28,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20a922fb/06f19a390b754873ab72aac3948a90fb/FLAG1d672f218
[2020-07-20 17:42:29,306 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-20 17:42:29,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-2.i
[2020-07-20 17:42:29,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20a922fb/06f19a390b754873ab72aac3948a90fb/FLAG1d672f218
[2020-07-20 17:42:29,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20a922fb/06f19a390b754873ab72aac3948a90fb
[2020-07-20 17:42:29,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 17:42:29,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 17:42:29,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 17:42:29,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 17:42:29,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 17:42:29,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6c5b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29, skipping insertion in model container
[2020-07-20 17:42:29,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-20 17:42:29,714 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-20 17:42:29,892 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 17:42:29,897 INFO L203 MainTranslator]: Completed pre-run
[2020-07-20 17:42:29,913 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 17:42:29,929 INFO L208 MainTranslator]: Completed translation
[2020-07-20 17:42:29,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29 WrapperNode
[2020-07-20 17:42:29,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 17:42:29,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 17:42:29,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 17:42:29,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 17:42:29,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (1/1) ...
[2020-07-20 17:42:29,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 17:42:29,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 17:42:29,966 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 17:42:29,966 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-20 17:42:29,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 17:42:30,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 17:42:30,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 17:42:30,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-20 17:42:30,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 17:42:30,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 17:42:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-20 17:42:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-20 17:42:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 17:42:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 17:42:30,298 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 17:42:30,298 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-20 17:42:30,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:42:30 BoogieIcfgContainer
[2020-07-20 17:42:30,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 17:42:30,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 17:42:30,304 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 17:42:30,308 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-20 17:42:30,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:42:29" (1/3) ...
[2020-07-20 17:42:30,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a99f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:42:30, skipping insertion in model container
[2020-07-20 17:42:30,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:42:29" (2/3) ...
[2020-07-20 17:42:30,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a99f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:42:30, skipping insertion in model container
[2020-07-20 17:42:30,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:42:30" (3/3) ...
[2020-07-20 17:42:30,312 INFO L109 eAbstractionObserver]: Analyzing ICFG sum04-2.i
[2020-07-20 17:42:30,324 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 17:42:30,332 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 17:42:30,347 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 17:42:30,373 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-20 17:42:30,373 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-20 17:42:30,373 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 17:42:30,373 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 17:42:30,373 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 17:42:30,374 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-20 17:42:30,374 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 17:42:30,374 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 17:42:30,390 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states.
[2020-07-20 17:42:30,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-07-20 17:42:30,396 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:42:30,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:42:30,397 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:42:30,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:42:30,402 INFO L82 PathProgramCache]: Analyzing trace with hash -10373566, now seen corresponding path program 1 times
[2020-07-20 17:42:30,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:42:30,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338293273]
[2020-07-20 17:42:30,410 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:30,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 17:42:30,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:42:30,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core
[2020-07-20 17:42:30,524 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:42:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:30,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 17:42:30,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338293273]
[2020-07-20 17:42:30,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 17:42:30,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-07-20 17:42:30,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64982503]
[2020-07-20 17:42:30,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-07-20 17:42:30,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:42:30,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-07-20 17:42:30,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-20 17:42:30,582 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states.
[2020-07-20 17:42:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:42:30,609 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions.
[2020-07-20 17:42:30,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-07-20 17:42:30,611 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2020-07-20 17:42:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:42:30,620 INFO L225 Difference]: With dead ends: 29
[2020-07-20 17:42:30,620 INFO L226 Difference]: Without dead ends: 12
[2020-07-20 17:42:30,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-20 17:42:30,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2020-07-20 17:42:30,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2020-07-20 17:42:30,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2020-07-20 17:42:30,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2020-07-20 17:42:30,666 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10
[2020-07-20 17:42:30,667 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:42:30,667 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions.
[2020-07-20 17:42:30,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-07-20 17:42:30,667 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2020-07-20 17:42:30,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-07-20 17:42:30,668 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:42:30,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:42:30,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:30,884 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:42:30,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:42:30,885 INFO L82 PathProgramCache]: Analyzing trace with hash -15914692, now seen corresponding path program 1 times
[2020-07-20 17:42:30,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:42:30,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247275424]
[2020-07-20 17:42:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:30,912 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 17:42:30,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:42:30,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core
[2020-07-20 17:42:30,915 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:42:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:30,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 17:42:30,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247275424]
[2020-07-20 17:42:30,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 17:42:30,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 17:42:30,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539224683]
[2020-07-20 17:42:30,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 17:42:30,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:42:30,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 17:42:30,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:42:30,960 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states.
[2020-07-20 17:42:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:42:31,007 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions.
[2020-07-20 17:42:31,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 17:42:31,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2020-07-20 17:42:31,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:42:31,010 INFO L225 Difference]: With dead ends: 19
[2020-07-20 17:42:31,010 INFO L226 Difference]: Without dead ends: 14
[2020-07-20 17:42:31,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:42:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2020-07-20 17:42:31,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13.
[2020-07-20 17:42:31,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2020-07-20 17:42:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions.
[2020-07-20 17:42:31,020 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10
[2020-07-20 17:42:31,020 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:42:31,020 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions.
[2020-07-20 17:42:31,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 17:42:31,021 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions.
[2020-07-20 17:42:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-07-20 17:42:31,022 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:42:31,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:42:31,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:31,229 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:42:31,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:42:31,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1244203718, now seen corresponding path program 1 times
[2020-07-20 17:42:31,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:42:31,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837879355]
[2020-07-20 17:42:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:31,261 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:42:31,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:42:31,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core
[2020-07-20 17:42:31,264 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:42:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:31,297 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 17:42:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:31,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837879355]
[2020-07-20 17:42:31,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 17:42:31,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2020-07-20 17:42:31,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657913984]
[2020-07-20 17:42:31,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-20 17:42:31,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:42:31,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-20 17:42:31,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2020-07-20 17:42:31,339 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states.
[2020-07-20 17:42:31,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:42:31,389 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions.
[2020-07-20 17:42:31,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-07-20 17:42:31,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12
[2020-07-20 17:42:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:42:31,390 INFO L225 Difference]: With dead ends: 24
[2020-07-20 17:42:31,391 INFO L226 Difference]: Without dead ends: 19
[2020-07-20 17:42:31,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2020-07-20 17:42:31,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2020-07-20 17:42:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2020-07-20 17:42:31,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states.
[2020-07-20 17:42:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions.
[2020-07-20 17:42:31,397 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12
[2020-07-20 17:42:31,398 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:42:31,398 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions.
[2020-07-20 17:42:31,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-20 17:42:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions.
[2020-07-20 17:42:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-07-20 17:42:31,399 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:42:31,399 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:42:31,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:31,601 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:42:31,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:42:31,602 INFO L82 PathProgramCache]: Analyzing trace with hash 263826484, now seen corresponding path program 2 times
[2020-07-20 17:42:31,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:42:31,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100484339]
[2020-07-20 17:42:31,603 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:31,651 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:42:31,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:42:31,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 17:42:31,656 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:42:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:31,732 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 17:42:31,800 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:31,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100484339]
[2020-07-20 17:42:31,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 17:42:31,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10
[2020-07-20 17:42:31,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945949629]
[2020-07-20 17:42:31,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-07-20 17:42:31,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:42:31,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-07-20 17:42:31,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90
[2020-07-20 17:42:31,803 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states.
[2020-07-20 17:42:31,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:42:31,855 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions.
[2020-07-20 17:42:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-07-20 17:42:31,856 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18
[2020-07-20 17:42:31,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:42:31,857 INFO L225 Difference]: With dead ends: 32
[2020-07-20 17:42:31,857 INFO L226 Difference]: Without dead ends: 27
[2020-07-20 17:42:31,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90
[2020-07-20 17:42:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2020-07-20 17:42:31,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2020-07-20 17:42:31,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states.
[2020-07-20 17:42:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions.
[2020-07-20 17:42:31,865 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 18
[2020-07-20 17:42:31,865 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:42:31,865 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions.
[2020-07-20 17:42:31,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-07-20 17:42:31,866 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions.
[2020-07-20 17:42:31,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-07-20 17:42:31,867 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:42:31,867 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:42:32,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:32,082 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:42:32,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:42:32,085 INFO L82 PathProgramCache]: Analyzing trace with hash 386905900, now seen corresponding path program 3 times
[2020-07-20 17:42:32,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:42:32,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048425222]
[2020-07-20 17:42:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:32,131 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:42:32,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:42:32,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core
[2020-07-20 17:42:32,135 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:42:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:32,305 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 17:42:32,356 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-20 17:42:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:32,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048425222]
[2020-07-20 17:42:32,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 17:42:32,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22
[2020-07-20 17:42:32,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641490506]
[2020-07-20 17:42:32,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states
[2020-07-20 17:42:32,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:42:32,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2020-07-20 17:42:32,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462
[2020-07-20 17:42:32,618 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 22 states.
[2020-07-20 17:42:32,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:42:32,795 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions.
[2020-07-20 17:42:32,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-07-20 17:42:32,795 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 26
[2020-07-20 17:42:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:42:32,797 INFO L225 Difference]: With dead ends: 34
[2020-07-20 17:42:32,797 INFO L226 Difference]: Without dead ends: 29
[2020-07-20 17:42:32,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506
[2020-07-20 17:42:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2020-07-20 17:42:32,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2020-07-20 17:42:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states.
[2020-07-20 17:42:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions.
[2020-07-20 17:42:32,805 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 26
[2020-07-20 17:42:32,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:42:32,805 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions.
[2020-07-20 17:42:32,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states.
[2020-07-20 17:42:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions.
[2020-07-20 17:42:32,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-07-20 17:42:32,806 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:42:32,807 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:42:33,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:33,008 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:42:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:42:33,009 INFO L82 PathProgramCache]: Analyzing trace with hash -680671446, now seen corresponding path program 4 times
[2020-07-20 17:42:33,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:42:33,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180696543]
[2020-07-20 17:42:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:33,040 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 17:42:33,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:42:33,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core
[2020-07-20 17:42:33,043 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:42:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:42:33,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 17:42:33,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180696543]
[2020-07-20 17:42:33,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 17:42:33,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-07-20 17:42:33,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212724881]
[2020-07-20 17:42:33,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-07-20 17:42:33,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:42:33,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-07-20 17:42:33,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110
[2020-07-20 17:42:33,133 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 11 states.
[2020-07-20 17:42:33,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:42:33,192 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions.
[2020-07-20 17:42:33,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-07-20 17:42:33,193 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28
[2020-07-20 17:42:33,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:42:33,194 INFO L225 Difference]: With dead ends: 29
[2020-07-20 17:42:33,194 INFO L226 Difference]: Without dead ends: 0
[2020-07-20 17:42:33,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110
[2020-07-20 17:42:33,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 17:42:33,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 17:42:33,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 17:42:33,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 17:42:33,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28
[2020-07-20 17:42:33,196 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:42:33,196 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 17:42:33,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-07-20 17:42:33,196 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 17:42:33,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 17:42:33,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:42:33,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 17:42:33,689 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52
[2020-07-20 17:42:33,692 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-07-20 17:42:33,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 17:42:33,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 17:42:33,693 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-07-20 17:42:33,693 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-07-20 17:42:33,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-07-20 17:42:33,694 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true
[2020-07-20 17:42:33,694 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed.
[2020-07-20 17:42:33,694 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 17) no Hoare annotation was computed.
[2020-07-20 17:42:33,694 INFO L268 CegarLoopResult]: For program point L13-2(lines 13 15) no Hoare annotation was computed.
[2020-07-20 17:42:33,694 INFO L264 CegarLoopResult]: At program point L13-3(lines 13 15) the Hoare annotation is: (or (and (<= 2 main_~i~0) (<= main_~i~0 2) (= 2 main_~sn~0)) (and (<= main_~i~0 8) (<= 8 main_~i~0) (= 14 main_~sn~0)) (and (<= main_~i~0 4) (= 6 main_~sn~0) (<= 4 main_~i~0)) (and (= 0 main_~sn~0) (<= main_~i~0 1) (<= 1 main_~i~0)) (and (<= 9 main_~i~0) (= 16 main_~sn~0)) (and (< main_~i~0 7) (= 10 main_~sn~0) (<= 6 main_~i~0)) (and (<= main_~i~0 3) (= 4 main_~sn~0) (<= 3 main_~i~0)) (and (<= 5 main_~i~0) (= 8 main_~sn~0) (<= main_~i~0 5)) (and (<= 7 main_~i~0) (= 12 main_~sn~0) (< main_~i~0 8)))
[2020-07-20 17:42:33,695 INFO L264 CegarLoopResult]: At program point L13-4(lines 13 15) the Hoare annotation is: (= 16 main_~sn~0)
[2020-07-20 17:42:33,695 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true
[2020-07-20 17:42:33,695 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed.
[2020-07-20 17:42:33,695 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-07-20 17:42:33,695 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed.
[2020-07-20 17:42:33,696 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed.
[2020-07-20 17:42:33,696 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed.
[2020-07-20 17:42:33,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:42:33 BoogieIcfgContainer
[2020-07-20 17:42:33,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 17:42:33,718 INFO L168 Benchmark]: Toolchain (without parser) took 4041.88 ms. Allocated memory was 137.4 MB in the beginning and 232.8 MB in the end (delta: 95.4 MB). Free memory was 102.7 MB in the beginning and 93.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB.
[2020-07-20 17:42:33,719 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-07-20 17:42:33,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.60 ms. Allocated memory is still 137.4 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
[2020-07-20 17:42:33,721 INFO L168 Benchmark]: Boogie Preprocessor took 34.60 ms. Allocated memory is still 137.4 MB. Free memory was 93.0 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-07-20 17:42:33,722 INFO L168 Benchmark]: RCFGBuilder took 337.22 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 91.4 MB in the beginning and 169.5 MB in the end (delta: -78.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB.
[2020-07-20 17:42:33,724 INFO L168 Benchmark]: TraceAbstraction took 3411.50 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 169.5 MB in the beginning and 93.2 MB in the end (delta: 76.3 MB). Peak memory consumption was 107.7 MB. Max. memory is 7.1 GB.
[2020-07-20 17:42:33,728 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.72 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 251.60 ms. Allocated memory is still 137.4 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 34.60 ms. Allocated memory is still 137.4 MB. Free memory was 93.0 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 337.22 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 91.4 MB in the beginning and 169.5 MB in the end (delta: -78.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3411.50 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 169.5 MB in the beginning and 93.2 MB in the end (delta: 76.3 MB). Peak memory consumption was 107.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 13]: Loop Invariant
Derived loop invariant: (((((((((2 <= i && i <= 2) && 2 == sn) || ((i <= 8 && 8 <= i) && 14 == sn)) || ((i <= 4 && 6 == sn) && 4 <= i)) || ((0 == sn && i <= 1) && 1 <= i)) || (9 <= i && 16 == sn)) || ((i < 7 && 10 == sn) && 6 <= i)) || ((i <= 3 && 4 == sn) && 3 <= i)) || ((5 <= i && 8 == sn) && i <= 5)) || ((7 <= i && 12 == sn) && i < 8)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 9, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 14 SDslu, 285 SDs, 0 SdLazy, 254 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 155 GetRequests, 108 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 96 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 104 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 9191 SizeOfPredicates, 6 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 81/243 InterpolantCoveringCapability, 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 proved your program to be correct!
Received shutdown request...