/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_FUNCTIONS --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/loop-invgen/SpamAssassin-loop.i


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-d623d84
[2020-07-20 14:29:31,683 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 14:29:31,685 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 14:29:31,701 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 14:29:31,701 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 14:29:31,703 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 14:29:31,705 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 14:29:31,707 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
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[2020-07-20 14:29:31,709 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-07-20 14:29:31,711 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 14:29:31,712 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 14:29:31,713 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 14:29:31,714 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 14:29:31,715 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 14:29:31,716 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 14:29:31,718 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 14:29:31,719 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 14:29:31,721 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 14:29:31,722 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 14:29:31,723 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 14:29:31,724 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 14:29:31,726 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 14:29:31,726 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 14:29:31,727 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 14:29:31,727 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 14:29:31,728 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 14:29:31,729 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 14:29:31,729 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-07-20 14:29:31,730 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 14:29:31,731 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 14:29:31,732 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 14:29:31,732 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 14:29:31,733 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-07-20 14:29:31,733 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-20 14:29:31,735 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 14:29:31,736 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 14:29:31,750 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 14:29:31,750 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 14:29:31,751 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 14:29:31,751 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 14:29:31,751 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 14:29:31,752 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 14:29:31,752 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 14:29:31,752 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 14:29:31,752 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 14:29:31,752 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 14:29:31,753 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 14:29:31,753 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 14:29:31,753 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 14:29:31,753 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 14:29:31,753 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 14:29:31,754 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 14:29:31,754 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 14:29:31,754 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 14:29:31,754 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 14:29:31,754 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 14:29:31,754 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 14:29:31,755 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 14:29:31,755 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 14:29:31,755 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 14:29:31,755 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 14:29:31,755 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 14:29:31,756 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:31,756 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 14:29:31,756 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 14:29:31,756 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_FUNCTIONS
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 14:29:32,017 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 14:29:32,033 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 14:29:32,037 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 14:29:32,040 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 14:29:32,042 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 14:29:32,043 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i
[2020-07-20 14:29:32,109 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce81db71c/89ba77629689446db0d1667a7cd98e47/FLAG4c27b8905
[2020-07-20 14:29:32,591 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 14:29:32,591 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i
[2020-07-20 14:29:32,597 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce81db71c/89ba77629689446db0d1667a7cd98e47/FLAG4c27b8905
[2020-07-20 14:29:32,936 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce81db71c/89ba77629689446db0d1667a7cd98e47
[2020-07-20 14:29:32,944 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 14:29:32,946 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 14:29:32,947 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 14:29:32,947 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 14:29:32,951 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 14:29:32,952 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:29:32" (1/1) ...
[2020-07-20 14:29:32,955 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f44d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:32, skipping insertion in model container
[2020-07-20 14:29:32,955 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:29:32" (1/1) ...
[2020-07-20 14:29:32,961 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 14:29:32,979 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 14:29:33,161 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 14:29:33,165 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 14:29:33,186 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 14:29:33,200 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 14:29:33,201 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33 WrapperNode
[2020-07-20 14:29:33,201 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 14:29:33,202 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 14:29:33,202 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 14:29:33,202 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 14:29:33,214 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (1/1) ...
[2020-07-20 14:29:33,215 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (1/1) ...
[2020-07-20 14:29:33,220 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (1/1) ...
[2020-07-20 14:29:33,221 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (1/1) ...
[2020-07-20 14:29:33,225 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (1/1) ...
[2020-07-20 14:29:33,312 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (1/1) ...
[2020-07-20 14:29:33,316 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (1/1) ...
[2020-07-20 14:29:33,318 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 14:29:33,323 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 14:29:33,323 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 14:29:33,323 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 14:29:33,324 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (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 14:29:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 14:29:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 14:29:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-07-20 14:29:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-20 14:29:33,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 14:29:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 14:29:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-07-20 14:29:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-07-20 14:29:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-20 14:29:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 14:29:33,384 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 14:29:33,385 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 14:29:33,385 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 14:29:33,695 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 14:29:33,695 INFO  L295             CfgBuilder]: Removed 2 assume(true) statements.
[2020-07-20 14:29:33,699 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:29:33 BoogieIcfgContainer
[2020-07-20 14:29:33,699 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 14:29:33,701 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 14:29:33,701 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 14:29:33,703 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 14:29:33,703 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:29:32" (1/3) ...
[2020-07-20 14:29:33,704 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fac9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:29:33, skipping insertion in model container
[2020-07-20 14:29:33,704 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:33" (2/3) ...
[2020-07-20 14:29:33,704 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fac9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:29:33, skipping insertion in model container
[2020-07-20 14:29:33,704 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:29:33" (3/3) ...
[2020-07-20 14:29:33,706 INFO  L109   eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i
[2020-07-20 14:29:33,713 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 14:29:33,719 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 14:29:33,732 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 14:29:33,753 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 14:29:33,754 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 14:29:33,754 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 14:29:33,754 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 14:29:33,754 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 14:29:33,754 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 14:29:33,754 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 14:29:33,754 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 14:29:33,771 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states.
[2020-07-20 14:29:33,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-07-20 14:29:33,776 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 14:29:33,777 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 14:29:33,777 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 14:29:33,781 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 14:29:33,782 INFO  L82        PathProgramCache]: Analyzing trace with hash -1128800291, now seen corresponding path program 1 times
[2020-07-20 14:29:33,788 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 14:29:33,788 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845680218]
[2020-07-20 14:29:33,789 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 14:29:33,865 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 14:29:33,866 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 14:29:33,871 INFO  L263         TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 14:29:33,881 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 14:29:33,950 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 14:29:33,973 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 14:29:33,974 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 14:29:33,975 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845680218]
[2020-07-20 14:29:33,975 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 14:29:33,975 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 14:29:33,976 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925170697]
[2020-07-20 14:29:33,980 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 14:29:33,980 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 14:29:33,993 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 14:29:33,994 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 14:29:33,996 INFO  L87              Difference]: Start difference. First operand 42 states. Second operand 5 states.
[2020-07-20 14:29:34,157 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 14:29:34,157 INFO  L93              Difference]: Finished difference Result 87 states and 154 transitions.
[2020-07-20 14:29:34,158 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-07-20 14:29:34,159 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-07-20 14:29:34,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 14:29:34,170 INFO  L225             Difference]: With dead ends: 87
[2020-07-20 14:29:34,170 INFO  L226             Difference]: Without dead ends: 46
[2020-07-20 14:29:34,176 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-07-20 14:29:34,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2020-07-20 14:29:34,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42.
[2020-07-20 14:29:34,230 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42 states.
[2020-07-20 14:29:34,232 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions.
[2020-07-20 14:29:34,234 INFO  L78                 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 13
[2020-07-20 14:29:34,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 14:29:34,235 INFO  L479      AbstractCegarLoop]: Abstraction has 42 states and 60 transitions.
[2020-07-20 14:29:34,235 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 14:29:34,235 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions.
[2020-07-20 14:29:34,237 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-07-20 14:29:34,237 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 14:29:34,237 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 14:29:34,438 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:34,439 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 14:29:34,439 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 14:29:34,440 INFO  L82        PathProgramCache]: Analyzing trace with hash -1106844324, now seen corresponding path program 1 times
[2020-07-20 14:29:34,441 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 14:29:34,442 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623043177]
[2020-07-20 14:29:34,442 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 14:29:34,469 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 14:29:34,469 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 14:29:34,470 INFO  L263         TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 14:29:34,471 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 14:29:34,485 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 14:29:34,505 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 14:29:34,505 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 14:29:34,506 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623043177]
[2020-07-20 14:29:34,506 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 14:29:34,506 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 14:29:34,507 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102725247]
[2020-07-20 14:29:34,508 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 14:29:34,508 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 14:29:34,509 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 14:29:34,509 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 14:29:34,509 INFO  L87              Difference]: Start difference. First operand 42 states and 60 transitions. Second operand 5 states.
[2020-07-20 14:29:34,631 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 14:29:34,632 INFO  L93              Difference]: Finished difference Result 54 states and 71 transitions.
[2020-07-20 14:29:34,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-07-20 14:29:34,633 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-07-20 14:29:34,633 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 14:29:34,636 INFO  L225             Difference]: With dead ends: 54
[2020-07-20 14:29:34,636 INFO  L226             Difference]: Without dead ends: 52
[2020-07-20 14:29:34,637 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-07-20 14:29:34,638 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2020-07-20 14:29:34,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50.
[2020-07-20 14:29:34,649 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 50 states.
[2020-07-20 14:29:34,651 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 66 transitions.
[2020-07-20 14:29:34,652 INFO  L78                 Accepts]: Start accepts. Automaton has 50 states and 66 transitions. Word has length 13
[2020-07-20 14:29:34,652 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 14:29:34,652 INFO  L479      AbstractCegarLoop]: Abstraction has 50 states and 66 transitions.
[2020-07-20 14:29:34,653 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 14:29:34,653 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions.
[2020-07-20 14:29:34,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-07-20 14:29:34,654 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 14:29:34,654 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 14:29:34,869 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:34,870 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 14:29:34,871 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 14:29:34,872 INFO  L82        PathProgramCache]: Analyzing trace with hash -1247762898, now seen corresponding path program 1 times
[2020-07-20 14:29:34,872 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 14:29:34,872 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139446449]
[2020-07-20 14:29:34,873 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 14:29:34,914 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 14:29:34,915 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 14:29:34,916 INFO  L263         TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 14:29:34,918 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 14:29:34,927 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 14:29:34,941 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 14:29:34,942 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 14:29:34,942 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139446449]
[2020-07-20 14:29:34,942 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 14:29:34,943 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 14:29:34,943 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229985643]
[2020-07-20 14:29:34,944 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 14:29:34,944 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 14:29:34,944 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 14:29:34,944 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 14:29:34,945 INFO  L87              Difference]: Start difference. First operand 50 states and 66 transitions. Second operand 5 states.
[2020-07-20 14:29:35,054 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 14:29:35,054 INFO  L93              Difference]: Finished difference Result 56 states and 71 transitions.
[2020-07-20 14:29:35,055 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-07-20 14:29:35,055 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 18
[2020-07-20 14:29:35,055 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 14:29:35,057 INFO  L225             Difference]: With dead ends: 56
[2020-07-20 14:29:35,057 INFO  L226             Difference]: Without dead ends: 54
[2020-07-20 14:29:35,057 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-07-20 14:29:35,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2020-07-20 14:29:35,067 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2020-07-20 14:29:35,068 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 54 states.
[2020-07-20 14:29:35,069 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions.
[2020-07-20 14:29:35,069 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 18
[2020-07-20 14:29:35,070 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 14:29:35,070 INFO  L479      AbstractCegarLoop]: Abstraction has 54 states and 69 transitions.
[2020-07-20 14:29:35,070 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 14:29:35,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions.
[2020-07-20 14:29:35,071 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-07-20 14:29:35,071 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 14:29:35,071 INFO  L422         BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 14:29:35,286 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:35,286 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 14:29:35,287 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 14:29:35,288 INFO  L82        PathProgramCache]: Analyzing trace with hash -2050697988, now seen corresponding path program 1 times
[2020-07-20 14:29:35,288 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 14:29:35,289 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037370536]
[2020-07-20 14:29:35,289 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)
[2020-07-20 14:29:35,316 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 14:29:35,317 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:35,318 INFO  L263         TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-07-20 14:29:35,320 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 14:29:35,340 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 14:29:35,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-07-20 14:29:35,362 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 14:29:35,363 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037370536]
[2020-07-20 14:29:35,363 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 14:29:35,363 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-07-20 14:29:35,363 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602704017]
[2020-07-20 14:29:35,363 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-20 14:29:35,364 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 14:29:35,364 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-20 14:29:35,364 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-07-20 14:29:35,364 INFO  L87              Difference]: Start difference. First operand 54 states and 69 transitions. Second operand 6 states.
[2020-07-20 14:29:35,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 14:29:35,495 INFO  L93              Difference]: Finished difference Result 60 states and 74 transitions.
[2020-07-20 14:29:35,495 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-20 14:29:35,496 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 23
[2020-07-20 14:29:35,496 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 14:29:35,497 INFO  L225             Difference]: With dead ends: 60
[2020-07-20 14:29:35,497 INFO  L226             Difference]: Without dead ends: 58
[2020-07-20 14:29:35,498 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-07-20 14:29:35,498 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2020-07-20 14:29:35,509 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2020-07-20 14:29:35,509 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 58 states.
[2020-07-20 14:29:35,510 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions.
[2020-07-20 14:29:35,510 INFO  L78                 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 23
[2020-07-20 14:29:35,511 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 14:29:35,511 INFO  L479      AbstractCegarLoop]: Abstraction has 58 states and 72 transitions.
[2020-07-20 14:29:35,511 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-20 14:29:35,511 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions.
[2020-07-20 14:29:35,512 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-07-20 14:29:35,512 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 14:29:35,513 INFO  L422         BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 14:29:35,725 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:35,726 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 14:29:35,726 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 14:29:35,726 INFO  L82        PathProgramCache]: Analyzing trace with hash -35497745, now seen corresponding path program 1 times
[2020-07-20 14:29:35,726 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 14:29:35,727 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903226928]
[2020-07-20 14:29:35,727 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 14:29:35,757 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 14:29:35,757 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 14:29:35,758 INFO  L263         TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 14:29:35,760 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 14:29:35,775 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 14:29:35,787 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-07-20 14:29:35,788 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 14:29:35,788 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903226928]
[2020-07-20 14:29:35,788 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 14:29:35,788 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 14:29:35,788 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392190565]
[2020-07-20 14:29:35,789 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 14:29:35,789 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 14:29:35,789 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 14:29:35,790 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 14:29:35,790 INFO  L87              Difference]: Start difference. First operand 58 states and 72 transitions. Second operand 5 states.
[2020-07-20 14:29:35,889 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 14:29:35,889 INFO  L93              Difference]: Finished difference Result 65 states and 78 transitions.
[2020-07-20 14:29:35,889 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-07-20 14:29:35,889 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 28
[2020-07-20 14:29:35,890 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 14:29:35,891 INFO  L225             Difference]: With dead ends: 65
[2020-07-20 14:29:35,891 INFO  L226             Difference]: Without dead ends: 63
[2020-07-20 14:29:35,891 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-07-20 14:29:35,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2020-07-20 14:29:35,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62.
[2020-07-20 14:29:35,901 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 62 states.
[2020-07-20 14:29:35,902 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions.
[2020-07-20 14:29:35,903 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 28
[2020-07-20 14:29:35,903 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 14:29:35,903 INFO  L479      AbstractCegarLoop]: Abstraction has 62 states and 75 transitions.
[2020-07-20 14:29:35,903 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 14:29:35,903 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions.
[2020-07-20 14:29:35,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-07-20 14:29:35,905 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 14:29:35,905 INFO  L422         BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 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 14:29:36,113 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:36,116 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 14:29:36,116 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 14:29:36,117 INFO  L82        PathProgramCache]: Analyzing trace with hash 663071772, now seen corresponding path program 1 times
[2020-07-20 14:29:36,117 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 14:29:36,117 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572735722]
[2020-07-20 14:29:36,118 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 14:29:36,155 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 14:29:36,155 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 14:29:36,156 INFO  L263         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-07-20 14:29:36,159 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 14:29:36,181 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 14:29:36,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2020-07-20 14:29:36,201 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 14:29:36,202 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572735722]
[2020-07-20 14:29:36,202 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 14:29:36,202 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-07-20 14:29:36,203 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33377140]
[2020-07-20 14:29:36,203 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-20 14:29:36,203 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 14:29:36,204 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-20 14:29:36,204 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-07-20 14:29:36,204 INFO  L87              Difference]: Start difference. First operand 62 states and 75 transitions. Second operand 6 states.
[2020-07-20 14:29:36,349 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 14:29:36,350 INFO  L93              Difference]: Finished difference Result 74 states and 90 transitions.
[2020-07-20 14:29:36,350 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-20 14:29:36,350 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 46
[2020-07-20 14:29:36,351 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 14:29:36,352 INFO  L225             Difference]: With dead ends: 74
[2020-07-20 14:29:36,352 INFO  L226             Difference]: Without dead ends: 72
[2020-07-20 14:29:36,353 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-07-20 14:29:36,353 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2020-07-20 14:29:36,363 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66.
[2020-07-20 14:29:36,363 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2020-07-20 14:29:36,364 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions.
[2020-07-20 14:29:36,365 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 46
[2020-07-20 14:29:36,365 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 14:29:36,365 INFO  L479      AbstractCegarLoop]: Abstraction has 66 states and 78 transitions.
[2020-07-20 14:29:36,365 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-20 14:29:36,366 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions.
[2020-07-20 14:29:36,367 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2020-07-20 14:29:36,367 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 14:29:36,368 INFO  L422         BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:29:36,580 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:36,582 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 14:29:36,582 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 14:29:36,582 INFO  L82        PathProgramCache]: Analyzing trace with hash -801825860, now seen corresponding path program 1 times
[2020-07-20 14:29:36,583 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 14:29:36,583 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217327945]
[2020-07-20 14:29:36,584 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:36,623 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 14:29:36,623 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 14:29:36,624 INFO  L263         TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 14:29:36,627 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 14:29:36,665 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 14:29:36,690 INFO  L134       CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2020-07-20 14:29:36,690 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 14:29:36,691 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217327945]
[2020-07-20 14:29:36,691 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 14:29:36,691 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-07-20 14:29:36,691 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919094404]
[2020-07-20 14:29:36,692 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-07-20 14:29:36,692 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 14:29:36,693 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-07-20 14:29:36,693 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-07-20 14:29:36,693 INFO  L87              Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states.
[2020-07-20 14:29:36,882 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 14:29:36,882 INFO  L93              Difference]: Finished difference Result 74 states and 86 transitions.
[2020-07-20 14:29:36,883 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-07-20 14:29:36,883 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 56
[2020-07-20 14:29:36,883 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 14:29:36,884 INFO  L225             Difference]: With dead ends: 74
[2020-07-20 14:29:36,884 INFO  L226             Difference]: Without dead ends: 72
[2020-07-20 14:29:36,885 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2020-07-20 14:29:36,885 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2020-07-20 14:29:36,894 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70.
[2020-07-20 14:29:36,894 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 70 states.
[2020-07-20 14:29:36,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions.
[2020-07-20 14:29:36,896 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 56
[2020-07-20 14:29:36,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 14:29:36,896 INFO  L479      AbstractCegarLoop]: Abstraction has 70 states and 81 transitions.
[2020-07-20 14:29:36,896 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-07-20 14:29:36,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions.
[2020-07-20 14:29:36,898 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-07-20 14:29:36,898 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 14:29:36,898 INFO  L422         BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:29:37,112 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:37,113 INFO  L427      AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 14:29:37,114 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 14:29:37,114 INFO  L82        PathProgramCache]: Analyzing trace with hash -1730547273, now seen corresponding path program 1 times
[2020-07-20 14:29:37,115 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 14:29:37,115 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409300714]
[2020-07-20 14:29:37,116 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:37,154 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 14:29:37,154 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 14:29:37,155 INFO  L263         TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 14:29:37,158 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 14:29:37,203 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 14:29:37,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2020-07-20 14:29:37,222 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 14:29:37,222 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409300714]
[2020-07-20 14:29:37,222 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 14:29:37,222 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-07-20 14:29:37,222 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441024320]
[2020-07-20 14:29:37,223 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-07-20 14:29:37,223 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 14:29:37,223 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-07-20 14:29:37,224 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-07-20 14:29:37,224 INFO  L87              Difference]: Start difference. First operand 70 states and 81 transitions. Second operand 8 states.
[2020-07-20 14:29:37,390 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 14:29:37,391 INFO  L93              Difference]: Finished difference Result 72 states and 84 transitions.
[2020-07-20 14:29:37,391 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-07-20 14:29:37,391 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 67
[2020-07-20 14:29:37,392 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 14:29:37,392 INFO  L225             Difference]: With dead ends: 72
[2020-07-20 14:29:37,393 INFO  L226             Difference]: Without dead ends: 0
[2020-07-20 14:29:37,394 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2020-07-20 14:29:37,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 14:29:37,394 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 14:29:37,394 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 14:29:37,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 14:29:37,395 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67
[2020-07-20 14:29:37,395 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 14:29:37,395 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 14:29:37,395 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-07-20 14:29:37,395 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 14:29:37,395 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 14:29:37,603 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:29:37,606 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 14:29:38,157 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.initFINAL(line -1)  the Hoare annotation is:  true
[2020-07-20 14:29:38,158 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-07-20 14:29:38,158 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-07-20 14:29:38,158 INFO  L271        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  true
[2020-07-20 14:29:38,158 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-07-20 14:29:38,158 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-07-20 14:29:38,158 INFO  L268        CegarLoopResult]: For program point  assume_abort_if_notENTRY(lines 3 5)  no Hoare annotation was computed.
[2020-07-20 14:29:38,158 INFO  L268        CegarLoopResult]: For program point  L4(line 4)  no Hoare annotation was computed.
[2020-07-20 14:29:38,158 INFO  L268        CegarLoopResult]: For program point  L4-2(lines 3 5)  no Hoare annotation was computed.
[2020-07-20 14:29:38,159 INFO  L268        CegarLoopResult]: For program point  assume_abort_if_notEXIT(lines 3 5)  no Hoare annotation was computed.
[2020-07-20 14:29:38,159 INFO  L264        CegarLoopResult]: At program point  L31(line 31)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,159 INFO  L268        CegarLoopResult]: For program point  L27(line 27)  no Hoare annotation was computed.
[2020-07-20 14:29:38,159 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 13 56)  no Hoare annotation was computed.
[2020-07-20 14:29:38,159 INFO  L264        CegarLoopResult]: At program point  L23-2(lines 23 54)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0))
[2020-07-20 14:29:38,159 INFO  L268        CegarLoopResult]: For program point  L23-3(lines 23 54)  no Hoare annotation was computed.
[2020-07-20 14:29:38,160 INFO  L264        CegarLoopResult]: At program point  L48(line 48)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,160 INFO  L264        CegarLoopResult]: At program point  L36(line 36)  the Hoare annotation is:  (and (<= (+ main_~i~0 1) main_~len~0) (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 0 main_~j~0))
[2020-07-20 14:29:38,160 INFO  L268        CegarLoopResult]: For program point  L32(line 32)  no Hoare annotation was computed.
[2020-07-20 14:29:38,160 INFO  L268        CegarLoopResult]: For program point  L28(line 28)  no Hoare annotation was computed.
[2020-07-20 14:29:38,160 INFO  L264        CegarLoopResult]: At program point  L24-2(lines 24 53)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0))
[2020-07-20 14:29:38,160 INFO  L268        CegarLoopResult]: For program point  L20(line 20)  no Hoare annotation was computed.
[2020-07-20 14:29:38,161 INFO  L268        CegarLoopResult]: For program point  L49(line 49)  no Hoare annotation was computed.
[2020-07-20 14:29:38,161 INFO  L264        CegarLoopResult]: At program point  L45(lines 25 52)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,161 INFO  L264        CegarLoopResult]: At program point  L41(line 41)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 3) main_~bufsize~0) (<= 0 main_~j~0))
[2020-07-20 14:29:38,161 INFO  L264        CegarLoopResult]: At program point  L41-1(line 41)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 3) main_~bufsize~0) (<= 0 main_~j~0))
[2020-07-20 14:29:38,161 INFO  L264        CegarLoopResult]: At program point  L37(line 37)  the Hoare annotation is:  (and (<= (+ main_~i~0 1) main_~len~0) (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 0 main_~j~0))
[2020-07-20 14:29:38,162 INFO  L264        CegarLoopResult]: At program point  L29(line 29)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,162 INFO  L264        CegarLoopResult]: At program point  L29-1(line 29)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,162 INFO  L268        CegarLoopResult]: For program point  L25(lines 25 52)  no Hoare annotation was computed.
[2020-07-20 14:29:38,162 INFO  L264        CegarLoopResult]: At program point  L46(line 46)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,162 INFO  L268        CegarLoopResult]: For program point  mainFINAL(lines 13 56)  no Hoare annotation was computed.
[2020-07-20 14:29:38,162 INFO  L268        CegarLoopResult]: For program point  L42(line 42)  no Hoare annotation was computed.
[2020-07-20 14:29:38,163 INFO  L268        CegarLoopResult]: For program point  L38(line 38)  no Hoare annotation was computed.
[2020-07-20 14:29:38,163 INFO  L264        CegarLoopResult]: At program point  L30(line 30)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,163 INFO  L271        CegarLoopResult]: At program point  mainENTRY(lines 13 56)  the Hoare annotation is:  true
[2020-07-20 14:29:38,163 INFO  L264        CegarLoopResult]: At program point  L26(line 26)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,163 INFO  L264        CegarLoopResult]: At program point  L26-1(line 26)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,164 INFO  L264        CegarLoopResult]: At program point  L47(line 47)  the Hoare annotation is:  (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0))
[2020-07-20 14:29:38,164 INFO  L264        CegarLoopResult]: At program point  L35(line 35)  the Hoare annotation is:  (and (<= (+ main_~i~0 1) main_~len~0) (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 0 main_~j~0))
[2020-07-20 14:29:38,164 INFO  L264        CegarLoopResult]: At program point  L35-1(line 35)  the Hoare annotation is:  (and (<= (+ main_~i~0 1) main_~len~0) (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 0 main_~j~0))
[2020-07-20 14:29:38,164 INFO  L271        CegarLoopResult]: At program point  __VERIFIER_assertENTRY(lines 6 11)  the Hoare annotation is:  true
[2020-07-20 14:29:38,164 INFO  L268        CegarLoopResult]: For program point  __VERIFIER_assertEXIT(lines 6 11)  no Hoare annotation was computed.
[2020-07-20 14:29:38,164 INFO  L268        CegarLoopResult]: For program point  L8(line 8)  no Hoare annotation was computed.
[2020-07-20 14:29:38,164 INFO  L268        CegarLoopResult]: For program point  L7(lines 7 9)  no Hoare annotation was computed.
[2020-07-20 14:29:38,165 INFO  L268        CegarLoopResult]: For program point  L7-2(lines 6 11)  no Hoare annotation was computed.
[2020-07-20 14:29:38,165 INFO  L268        CegarLoopResult]: For program point  __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8)  no Hoare annotation was computed.
[2020-07-20 14:29:38,182 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:29:38 BoogieIcfgContainer
[2020-07-20 14:29:38,182 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 14:29:38,185 INFO  L168              Benchmark]: Toolchain (without parser) took 5238.69 ms. Allocated memory was 145.8 MB in the beginning and 246.4 MB in the end (delta: 100.7 MB). Free memory was 104.0 MB in the beginning and 215.9 MB in the end (delta: -111.9 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB.
[2020-07-20 14:29:38,186 INFO  L168              Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
[2020-07-20 14:29:38,186 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 254.45 ms. Allocated memory is still 145.8 MB. Free memory was 103.5 MB in the beginning and 93.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
[2020-07-20 14:29:38,187 INFO  L168              Benchmark]: Boogie Preprocessor took 120.72 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 93.5 MB in the beginning and 181.1 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
[2020-07-20 14:29:38,188 INFO  L168              Benchmark]: RCFGBuilder took 376.88 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 164.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB.
[2020-07-20 14:29:38,189 INFO  L168              Benchmark]: TraceAbstraction took 4481.61 ms. Allocated memory was 202.4 MB in the beginning and 246.4 MB in the end (delta: 44.0 MB). Free memory was 164.0 MB in the beginning and 215.9 MB in the end (delta: -51.9 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB.
[2020-07-20 14:29:38,193 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.44 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 254.45 ms. Allocated memory is still 145.8 MB. Free memory was 103.5 MB in the beginning and 93.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 120.72 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 93.5 MB in the beginning and 181.1 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 376.88 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 164.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 4481.61 ms. Allocated memory was 202.4 MB in the beginning and 246.4 MB in the end (delta: 44.0 MB). Free memory was 164.0 MB in the beginning and 215.9 MB in the end (delta: -51.9 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 8]: 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: 24]: Loop Invariant
    Derived loop invariant: (0 <= i && limit + 4 <= bufsize) && 0 <= j
  - InvariantResult [Line: 25]: Loop Invariant
    Derived loop invariant: (((0 <= i && limit + 4 <= bufsize) && 0 <= j) && i < len) && j + 5 <= bufsize
  - InvariantResult [Line: 23]: Loop Invariant
    Derived loop invariant: 0 <= i && limit + 4 <= bufsize
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 5 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 11, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 395 SDtfs, 108 SDslu, 1010 SDs, 0 SdLazy, 525 SolverSat, 129 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 55 PreInvPairs, 76 NumberOfFragments, 360 HoareAnnotationTreeSize, 55 FomulaSimplifications, 413 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 23 FomulaSimplificationsInter, 169 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 264 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 23214 SizeOfPredicates, 19 NumberOfNonLiveVariables, 600 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 428/428 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...