/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/recursive-simple/id2_b2_o3.c
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This is Ultimate 0.1.25-d623d84
[2020-07-20 16:56:24,592 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-20 16:56:24,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 16:56:24,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 16:56:24,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 16:56:24,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 16:56:24,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 16:56:24,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 16:56:24,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 16:56:24,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 16:56:24,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 16:56:24,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 16:56:24,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 16:56:24,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 16:56:24,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 16:56:24,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 16:56:24,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 16:56:24,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 16:56:24,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 16:56:24,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 16:56:24,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 16:56:24,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 16:56:24,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 16:56:24,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 16:56:24,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 16:56:24,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 16:56:24,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 16:56:24,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 16:56:24,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 16:56:24,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 16:56:24,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 16:56:24,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 16:56:24,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 16:56:24,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 16:56:24,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 16:56:24,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 16:56:24,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 16:56:24,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 16:56:24,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-20 16:56:24,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-20 16:56:24,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 16:56:24,651 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 16:56:24,669 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-20 16:56:24,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 16:56:24,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 16:56:24,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-20 16:56:24,672 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-20 16:56:24,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 16:56:24,673 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-20 16:56:24,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-20 16:56:24,674 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-20 16:56:24,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-20 16:56:24,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 16:56:24,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 16:56:24,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 16:56:24,675 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-20 16:56:24,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-20 16:56:24,675 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-20 16:56:24,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-20 16:56:24,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 16:56:24,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-20 16:56:24,676 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-20 16:56:24,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-20 16:56:24,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 16:56:24,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 16:56:24,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 16:56:24,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 16:56:24,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-20 16:56:24,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:56:24,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 16:56:24,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-20 16:56:24,679 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 16:56:25,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 16:56:25,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 16:56:25,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 16:56:25,032 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-20 16:56:25,032 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-20 16:56:25,033 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id2_b2_o3.c
[2020-07-20 16:56:25,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed514cd72/518cdec9724b487383a687a9401f475b/FLAGde83f27e6
[2020-07-20 16:56:25,664 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-20 16:56:25,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id2_b2_o3.c
[2020-07-20 16:56:25,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed514cd72/518cdec9724b487383a687a9401f475b/FLAGde83f27e6
[2020-07-20 16:56:26,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed514cd72/518cdec9724b487383a687a9401f475b
[2020-07-20 16:56:26,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 16:56:26,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 16:56:26,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 16:56:26,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 16:56:26,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 16:56:26,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475f5656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26, skipping insertion in model container
[2020-07-20 16:56:26,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-20 16:56:26,071 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-20 16:56:26,247 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 16:56:26,253 INFO L203 MainTranslator]: Completed pre-run
[2020-07-20 16:56:26,273 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 16:56:26,291 INFO L208 MainTranslator]: Completed translation
[2020-07-20 16:56:26,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26 WrapperNode
[2020-07-20 16:56:26,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 16:56:26,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 16:56:26,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 16:56:26,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 16:56:26,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (1/1) ...
[2020-07-20 16:56:26,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 16:56:26,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 16:56:26,328 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 16:56:26,328 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-20 16:56:26,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (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 16:56:26,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 16:56:26,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 16:56:26,497 INFO L138 BoogieDeclarations]: Found implementation of procedure id
[2020-07-20 16:56:26,497 INFO L138 BoogieDeclarations]: Found implementation of procedure id2
[2020-07-20 16:56:26,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 16:56:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2020-07-20 16:56:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 16:56:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure id
[2020-07-20 16:56:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure id2
[2020-07-20 16:56:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-20 16:56:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 16:56:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 16:56:26,743 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 16:56:26,743 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-07-20 16:56:26,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:56:26 BoogieIcfgContainer
[2020-07-20 16:56:26,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 16:56:26,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 16:56:26,764 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 16:56:26,769 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-20 16:56:26,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:56:26" (1/3) ...
[2020-07-20 16:56:26,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d3f27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:56:26, skipping insertion in model container
[2020-07-20 16:56:26,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:56:26" (2/3) ...
[2020-07-20 16:56:26,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d3f27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:56:26, skipping insertion in model container
[2020-07-20 16:56:26,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:56:26" (3/3) ...
[2020-07-20 16:56:26,780 INFO L109 eAbstractionObserver]: Analyzing ICFG id2_b2_o3.c
[2020-07-20 16:56:26,794 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 16:56:26,804 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 16:56:26,842 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 16:56:26,885 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-20 16:56:26,885 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-20 16:56:26,887 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 16:56:26,887 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 16:56:26,888 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 16:56:26,889 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-20 16:56:26,889 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 16:56:26,889 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 16:56:26,914 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states.
[2020-07-20 16:56:26,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-07-20 16:56:26,923 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 16:56:26,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 16:56:26,924 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:56:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:56:26,930 INFO L82 PathProgramCache]: Analyzing trace with hash 128923731, now seen corresponding path program 1 times
[2020-07-20 16:56:26,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:56:26,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145691352]
[2020-07-20 16:56:26,939 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 16:56:27,003 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 16:56:27,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:56:27,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 16:56:27,012 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:56:27,088 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 16:56:27,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:56:27,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145691352]
[2020-07-20 16:56:27,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:56:27,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 16:56:27,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515266622]
[2020-07-20 16:56:27,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 16:56:27,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:56:27,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 16:56:27,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 16:56:27,109 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states.
[2020-07-20 16:56:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:56:27,170 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions.
[2020-07-20 16:56:27,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-07-20 16:56:27,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-07-20 16:56:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:56:27,182 INFO L225 Difference]: With dead ends: 40
[2020-07-20 16:56:27,182 INFO L226 Difference]: Without dead ends: 26
[2020-07-20 16:56:27,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 16:56:27,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2020-07-20 16:56:27,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2020-07-20 16:56:27,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states.
[2020-07-20 16:56:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions.
[2020-07-20 16:56:27,232 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 13
[2020-07-20 16:56:27,233 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:56:27,233 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions.
[2020-07-20 16:56:27,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 16:56:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions.
[2020-07-20 16:56:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2020-07-20 16:56:27,239 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 16:56:27,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 16:56:27,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:56:27,460 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:56:27,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:56:27,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1945633833, now seen corresponding path program 1 times
[2020-07-20 16:56:27,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:56:27,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525301035]
[2020-07-20 16:56:27,463 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 16:56:27,507 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 16:56:27,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:56:27,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 16:56:27,510 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:56:27,553 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 16:56:27,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:56:27,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525301035]
[2020-07-20 16:56:27,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:56:27,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 16:56:27,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925170697]
[2020-07-20 16:56:27,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 16:56:27,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:56:27,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 16:56:27,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 16:56:27,558 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 5 states.
[2020-07-20 16:56:27,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:56:27,589 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions.
[2020-07-20 16:56:27,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-07-20 16:56:27,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20
[2020-07-20 16:56:27,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:56:27,592 INFO L225 Difference]: With dead ends: 44
[2020-07-20 16:56:27,592 INFO L226 Difference]: Without dead ends: 32
[2020-07-20 16:56:27,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 16:56:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-07-20 16:56:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30.
[2020-07-20 16:56:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2020-07-20 16:56:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions.
[2020-07-20 16:56:27,604 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 20
[2020-07-20 16:56:27,604 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:56:27,605 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions.
[2020-07-20 16:56:27,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 16:56:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions.
[2020-07-20 16:56:27,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2020-07-20 16:56:27,606 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 16:56:27,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 16:56:27,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:56:27,824 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:56:27,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:56:27,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1974262984, now seen corresponding path program 1 times
[2020-07-20 16:56:27,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:56:27,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042663340]
[2020-07-20 16:56:27,827 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 16:56:27,863 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 16:56:27,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:56:27,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 13 conjunts are in the unsatisfiable core
[2020-07-20 16:56:27,874 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:56:27,949 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 16:56:27,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:56:27,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042663340]
[2020-07-20 16:56:27,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:56:27,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-07-20 16:56:27,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564949720]
[2020-07-20 16:56:27,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-07-20 16:56:27,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:56:27,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-07-20 16:56:27,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-07-20 16:56:27,953 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 8 states.
[2020-07-20 16:56:28,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:56:28,010 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions.
[2020-07-20 16:56:28,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-07-20 16:56:28,011 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20
[2020-07-20 16:56:28,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:56:28,013 INFO L225 Difference]: With dead ends: 36
[2020-07-20 16:56:28,013 INFO L226 Difference]: Without dead ends: 32
[2020-07-20 16:56:28,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2020-07-20 16:56:28,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-07-20 16:56:28,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30.
[2020-07-20 16:56:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2020-07-20 16:56:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions.
[2020-07-20 16:56:28,022 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 20
[2020-07-20 16:56:28,022 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:56:28,022 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions.
[2020-07-20 16:56:28,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-07-20 16:56:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions.
[2020-07-20 16:56:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-07-20 16:56:28,024 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 16:56:28,024 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 16:56:28,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:56:28,238 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:56:28,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:56:28,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1423155149, now seen corresponding path program 1 times
[2020-07-20 16:56:28,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:56:28,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454677848]
[2020-07-20 16:56:28,240 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 16:56:28,278 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 16:56:28,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:56:28,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 16:56:28,282 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:56:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-07-20 16:56:28,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:56:28,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454677848]
[2020-07-20 16:56:28,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:56:28,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 16:56:28,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134071181]
[2020-07-20 16:56:28,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 16:56:28,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:56:28,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 16:56:28,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 16:56:28,315 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states.
[2020-07-20 16:56:28,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:56:28,344 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions.
[2020-07-20 16:56:28,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-07-20 16:56:28,345 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27
[2020-07-20 16:56:28,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:56:28,347 INFO L225 Difference]: With dead ends: 48
[2020-07-20 16:56:28,347 INFO L226 Difference]: Without dead ends: 36
[2020-07-20 16:56:28,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 16:56:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2020-07-20 16:56:28,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34.
[2020-07-20 16:56:28,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states.
[2020-07-20 16:56:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions.
[2020-07-20 16:56:28,357 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 27
[2020-07-20 16:56:28,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:56:28,357 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions.
[2020-07-20 16:56:28,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 16:56:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions.
[2020-07-20 16:56:28,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-07-20 16:56:28,359 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 16:56:28,359 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 16:56:28,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:56:28,574 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:56:28,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:56:28,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1226641644, now seen corresponding path program 1 times
[2020-07-20 16:56:28,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:56:28,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411961658]
[2020-07-20 16:56:28,577 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 16:56:28,606 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 16:56:28,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:56:28,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 13 conjunts are in the unsatisfiable core
[2020-07-20 16:56:28,610 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:56:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-07-20 16:56:28,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:56:28,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411961658]
[2020-07-20 16:56:28,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:56:28,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-07-20 16:56:28,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476950309]
[2020-07-20 16:56:28,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-07-20 16:56:28,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:56:28,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-07-20 16:56:28,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-07-20 16:56:28,705 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 8 states.
[2020-07-20 16:56:28,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:56:28,793 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions.
[2020-07-20 16:56:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-07-20 16:56:28,794 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27
[2020-07-20 16:56:28,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:56:28,796 INFO L225 Difference]: With dead ends: 52
[2020-07-20 16:56:28,796 INFO L226 Difference]: Without dead ends: 40
[2020-07-20 16:56:28,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2020-07-20 16:56:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2020-07-20 16:56:28,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38.
[2020-07-20 16:56:28,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states.
[2020-07-20 16:56:28,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions.
[2020-07-20 16:56:28,810 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 27
[2020-07-20 16:56:28,811 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:56:28,811 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions.
[2020-07-20 16:56:28,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-07-20 16:56:28,813 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions.
[2020-07-20 16:56:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-07-20 16:56:28,814 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 16:56:28,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 16:56:29,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:56:29,036 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:56:29,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:56:29,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1255270795, now seen corresponding path program 1 times
[2020-07-20 16:56:29,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:56:29,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336275624]
[2020-07-20 16:56:29,038 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 16:56:29,067 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 16:56:29,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:56:29,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 19 conjunts are in the unsatisfiable core
[2020-07-20 16:56:29,072 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:56:29,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-07-20 16:56:29,168 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 16:56:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-07-20 16:56:29,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336275624]
[2020-07-20 16:56:29,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 16:56:29,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2020-07-20 16:56:29,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550477783]
[2020-07-20 16:56:29,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states
[2020-07-20 16:56:29,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:56:29,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2020-07-20 16:56:29,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380
[2020-07-20 16:56:29,579 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 20 states.
[2020-07-20 16:56:29,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:56:29,783 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions.
[2020-07-20 16:56:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-07-20 16:56:29,784 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 27
[2020-07-20 16:56:29,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:56:29,784 INFO L225 Difference]: With dead ends: 44
[2020-07-20 16:56:29,784 INFO L226 Difference]: Without dead ends: 0
[2020-07-20 16:56:29,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506
[2020-07-20 16:56:29,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 16:56:29,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 16:56:29,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 16:56:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 16:56:29,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27
[2020-07-20 16:56:29,786 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:56:29,787 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 16:56:29,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states.
[2020-07-20 16:56:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 16:56:29,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 16:56:29,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:56:29,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 16:56:30,052 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-07-20 16:56:30,052 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 16:56:30,052 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed.
[2020-07-20 16:56:30,052 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true
[2020-07-20 16:56:30,053 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-07-20 16:56:30,053 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed.
[2020-07-20 16:56:30,053 INFO L268 CegarLoopResult]: For program point id2EXIT(lines 14 19) no Hoare annotation was computed.
[2020-07-20 16:56:30,053 INFO L271 CegarLoopResult]: At program point id2ENTRY(lines 14 19) the Hoare annotation is: true
[2020-07-20 16:56:30,054 INFO L268 CegarLoopResult]: For program point id2FINAL(lines 14 19) no Hoare annotation was computed.
[2020-07-20 16:56:30,054 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 16:56:30,054 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-07-20 16:56:30,054 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-07-20 16:56:30,054 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-07-20 16:56:30,055 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed.
[2020-07-20 16:56:30,055 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 21 27) the Hoare annotation is: true
[2020-07-20 16:56:30,055 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-07-20 16:56:30,055 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 21 27) no Hoare annotation was computed.
[2020-07-20 16:56:30,055 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed.
[2020-07-20 16:56:30,055 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true
[2020-07-20 16:56:30,055 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed.
[2020-07-20 16:56:30,056 INFO L268 CegarLoopResult]: For program point L24-2(lines 21 27) no Hoare annotation was computed.
[2020-07-20 16:56:30,056 INFO L268 CegarLoopResult]: For program point idFINAL(lines 7 12) no Hoare annotation was computed.
[2020-07-20 16:56:30,056 INFO L268 CegarLoopResult]: For program point idEXIT(lines 7 12) no Hoare annotation was computed.
[2020-07-20 16:56:30,056 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed.
[2020-07-20 16:56:30,057 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true
[2020-07-20 16:56:30,057 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed.
[2020-07-20 16:56:30,058 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed.
[2020-07-20 16:56:30,058 INFO L271 CegarLoopResult]: At program point idENTRY(lines 7 12) the Hoare annotation is: true
[2020-07-20 16:56:30,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:56:30 BoogieIcfgContainer
[2020-07-20 16:56:30,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 16:56:30,072 INFO L168 Benchmark]: Toolchain (without parser) took 4041.63 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 101.9 MB in the beginning and 112.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB.
[2020-07-20 16:56:30,074 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-20 16:56:30,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.43 ms. Allocated memory is still 144.7 MB. Free memory was 101.5 MB in the beginning and 91.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
[2020-07-20 16:56:30,077 INFO L168 Benchmark]: Boogie Preprocessor took 34.32 ms. Allocated memory is still 144.7 MB. Free memory was 91.9 MB in the beginning and 90.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-07-20 16:56:30,084 INFO L168 Benchmark]: RCFGBuilder took 422.38 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 90.6 MB in the beginning and 168.5 MB in the end (delta: -77.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
[2020-07-20 16:56:30,085 INFO L168 Benchmark]: TraceAbstraction took 3305.18 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 112.1 MB in the end (delta: 56.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB.
[2020-07-20 16:56:30,097 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 260.43 ms. Allocated memory is still 144.7 MB. Free memory was 101.5 MB in the beginning and 91.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 34.32 ms. Allocated memory is still 144.7 MB. Free memory was 91.9 MB in the beginning and 90.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 422.38 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 90.6 MB in the beginning and 168.5 MB in the end (delta: -77.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3305.18 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 112.1 MB in the end (delta: 56.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 25]: 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
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 169 SDtfs, 20 SDslu, 874 SDs, 0 SdLazy, 199 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 134 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 6982 SizeOfPredicates, 10 NumberOfNonLiveVariables, 243 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 12/16 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...