/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-72570d3
[2020-08-22 16:57:57,463 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-08-22 16:57:57,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-22 16:57:57,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-22 16:57:57,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-22 16:57:57,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-22 16:57:57,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-22 16:57:57,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
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[2020-08-22 16:57:57,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-08-22 16:57:57,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-22 16:57:57,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-22 16:57:57,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-22 16:57:57,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
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[2020-08-22 16:57:57,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2020-08-22 16:57:57,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-08-22 16:57:57,571 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
[2020-08-22 16:57:57,596 INFO L113 SettingsManager]: Loading preferences was successful
[2020-08-22 16:57:57,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-22 16:57:57,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-22 16:57:57,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-08-22 16:57:57,598 INFO L138 SettingsManager]: * Use SBE=true
[2020-08-22 16:57:57,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-22 16:57:57,598 INFO L138 SettingsManager]: * sizeof long=4
[2020-08-22 16:57:57,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-08-22 16:57:57,598 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-08-22 16:57:57,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-08-22 16:57:57,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-08-22 16:57:57,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-22 16:57:57,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-08-22 16:57:57,599 INFO L138 SettingsManager]: * sizeof long double=12
[2020-08-22 16:57:57,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-08-22 16:57:57,600 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-08-22 16:57:57,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-08-22 16:57:57,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-22 16:57:57,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-08-22 16:57:57,601 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-08-22 16:57:57,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-08-22 16:57:57,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 16:57:57,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-22 16:57:57,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-08-22 16:57:57,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-22 16:57:57,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-08-22 16:57:57,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-22 16:57:57,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-22 16:57:57,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-08-22 16:57:57,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-08-22 16:57:57,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-22 16:57:57,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-22 16:57:57,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-22 16:57:57,967 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-08-22 16:57:57,967 INFO L275 PluginConnector]: CDTParser initialized
[2020-08-22 16:57:57,968 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i
[2020-08-22 16:57:58,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97887a3c/607838473c01424794d3f3e88ddcb31e/FLAG7db8bb984
[2020-08-22 16:57:58,518 INFO L306 CDTParser]: Found 1 translation units.
[2020-08-22 16:57:58,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i
[2020-08-22 16:57:58,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97887a3c/607838473c01424794d3f3e88ddcb31e/FLAG7db8bb984
[2020-08-22 16:57:58,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97887a3c/607838473c01424794d3f3e88ddcb31e
[2020-08-22 16:57:58,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-22 16:57:58,890 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-22 16:57:58,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-22 16:57:58,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-22 16:57:58,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-22 16:57:58,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:57:58" (1/1) ...
[2020-08-22 16:57:58,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56de5f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:58, skipping insertion in model container
[2020-08-22 16:57:58,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:57:58" (1/1) ...
[2020-08-22 16:57:58,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-08-22 16:57:58,920 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-08-22 16:57:59,071 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-22 16:57:59,075 INFO L203 MainTranslator]: Completed pre-run
[2020-08-22 16:57:59,093 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-22 16:57:59,108 INFO L208 MainTranslator]: Completed translation
[2020-08-22 16:57:59,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59 WrapperNode
[2020-08-22 16:57:59,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-22 16:57:59,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-22 16:57:59,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-22 16:57:59,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-08-22 16:57:59,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (1/1) ...
[2020-08-22 16:57:59,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (1/1) ...
[2020-08-22 16:57:59,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (1/1) ...
[2020-08-22 16:57:59,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (1/1) ...
[2020-08-22 16:57:59,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (1/1) ...
[2020-08-22 16:57:59,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (1/1) ...
[2020-08-22 16:57:59,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (1/1) ...
[2020-08-22 16:57:59,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-22 16:57:59,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-22 16:57:59,229 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-08-22 16:57:59,229 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-08-22 16:57:59,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (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
[2020-08-22 16:57:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-22 16:57:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-22 16:57:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-08-22 16:57:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-08-22 16:57:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-08-22 16:57:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-22 16:57:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-08-22 16:57:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-08-22 16:57:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-08-22 16:57:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-22 16:57:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-08-22 16:57:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-22 16:57:59,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-22 16:57:59,483 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-22 16:57:59,483 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-08-22 16:57:59,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:57:59 BoogieIcfgContainer
[2020-08-22 16:57:59,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-22 16:57:59,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-22 16:57:59,500 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-08-22 16:57:59,512 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-08-22 16:57:59,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:57:58" (1/3) ...
[2020-08-22 16:57:59,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7835e3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:57:59, skipping insertion in model container
[2020-08-22 16:57:59,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:57:59" (2/3) ...
[2020-08-22 16:57:59,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7835e3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:57:59, skipping insertion in model container
[2020-08-22 16:57:59,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:57:59" (3/3) ...
[2020-08-22 16:57:59,527 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i
[2020-08-22 16:57:59,548 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-08-22 16:57:59,570 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-22 16:57:59,590 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-22 16:57:59,623 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-08-22 16:57:59,623 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-08-22 16:57:59,623 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-08-22 16:57:59,623 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-22 16:57:59,623 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-22 16:57:59,623 INFO L380 AbstractCegarLoop]: Difference is false
[2020-08-22 16:57:59,623 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-22 16:57:59,624 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-22 16:57:59,640 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states.
[2020-08-22 16:57:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-08-22 16:57:59,645 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:57:59,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 16:57:59,646 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:57:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:57:59,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1608903343, now seen corresponding path program 1 times
[2020-08-22 16:57:59,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:57:59,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395248689]
[2020-08-22 16:57:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:57:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:57:59,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:57:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:57:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 16:57:59,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395248689]
[2020-08-22 16:57:59,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 16:57:59,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-22 16:57:59,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022191773]
[2020-08-22 16:57:59,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-22 16:57:59,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:57:59,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-22 16:57:59,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-22 16:57:59,821 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states.
[2020-08-22 16:57:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:57:59,862 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions.
[2020-08-22 16:57:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-08-22 16:57:59,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11
[2020-08-22 16:57:59,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:57:59,876 INFO L225 Difference]: With dead ends: 32
[2020-08-22 16:57:59,876 INFO L226 Difference]: Without dead ends: 13
[2020-08-22 16:57:59,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-22 16:57:59,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2020-08-22 16:57:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2020-08-22 16:57:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2020-08-22 16:57:59,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions.
[2020-08-22 16:57:59,913 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11
[2020-08-22 16:57:59,914 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:57:59,914 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions.
[2020-08-22 16:57:59,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-22 16:57:59,914 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions.
[2020-08-22 16:57:59,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-08-22 16:57:59,915 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:57:59,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 16:57:59,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-22 16:57:59,916 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:57:59,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:57:59,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1628066164, now seen corresponding path program 1 times
[2020-08-22 16:57:59,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:57:59,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432762916]
[2020-08-22 16:57:59,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:57:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:58:00,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:58:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:58:00,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 16:58:00,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432762916]
[2020-08-22 16:58:00,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183432494]
[2020-08-22 16:58:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:58:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:58:00,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 14 conjunts are in the unsatisfiable core
[2020-08-22 16:58:00,188 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-08-22 16:58:00,502 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-08-22 16:58:00,523 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-08-22 16:58:00,530 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-08-22 16:58:00,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 16:58:00,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-08-22 16:58:00,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13
[2020-08-22 16:58:00,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452499770]
[2020-08-22 16:58:00,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-08-22 16:58:00,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:58:00,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-08-22 16:58:00,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2020-08-22 16:58:00,623 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 13 states.
[2020-08-22 16:58:00,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:58:00,707 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions.
[2020-08-22 16:58:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-08-22 16:58:00,708 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 12
[2020-08-22 16:58:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:58:00,709 INFO L225 Difference]: With dead ends: 19
[2020-08-22 16:58:00,709 INFO L226 Difference]: Without dead ends: 14
[2020-08-22 16:58:00,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210
[2020-08-22 16:58:00,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2020-08-22 16:58:00,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2020-08-22 16:58:00,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2020-08-22 16:58:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions.
[2020-08-22 16:58:00,716 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12
[2020-08-22 16:58:00,716 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:58:00,716 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions.
[2020-08-22 16:58:00,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-08-22 16:58:00,717 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions.
[2020-08-22 16:58:00,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-08-22 16:58:00,717 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:58:00,718 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 16:58:00,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2020-08-22 16:58:00,931 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:58:00,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:58:00,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1105094223, now seen corresponding path program 2 times
[2020-08-22 16:58:00,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:58:00,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542912092]
[2020-08-22 16:58:00,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:58:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:58:01,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:58:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:58:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-08-22 16:58:01,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542912092]
[2020-08-22 16:58:01,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175484405]
[2020-08-22 16:58:01,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:58:01,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-08-22 16:58:01,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-08-22 16:58:01,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 20 conjunts are in the unsatisfiable core
[2020-08-22 16:58:01,166 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-08-22 16:58:01,303 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-08-22 16:58:01,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-08-22 16:58:01,310 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-08-22 16:58:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 16:58:01,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-08-22 16:58:01,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2020-08-22 16:58:01,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215979802]
[2020-08-22 16:58:01,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-08-22 16:58:01,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:58:01,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-08-22 16:58:01,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182
[2020-08-22 16:58:01,375 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 14 states.
[2020-08-22 16:58:01,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:58:01,598 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions.
[2020-08-22 16:58:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-08-22 16:58:01,598 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13
[2020-08-22 16:58:01,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:58:01,599 INFO L225 Difference]: With dead ends: 16
[2020-08-22 16:58:01,599 INFO L226 Difference]: Without dead ends: 0
[2020-08-22 16:58:01,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420
[2020-08-22 16:58:01,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-08-22 16:58:01,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-08-22 16:58:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-08-22 16:58:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-08-22 16:58:01,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13
[2020-08-22 16:58:01,601 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:58:01,601 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-08-22 16:58:01,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-08-22 16:58:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-08-22 16:58:01,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-08-22 16:58:01,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:58:01,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-08-22 16:58:01,955 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-08-22 16:58:01,955 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-08-22 16:58:01,956 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-08-22 16:58:01,956 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-08-22 16:58:01,956 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-08-22 16:58:01,956 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-08-22 16:58:01,956 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed.
[2020-08-22 16:58:01,956 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed.
[2020-08-22 16:58:01,957 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed.
[2020-08-22 16:58:01,957 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed.
[2020-08-22 16:58:01,957 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true
[2020-08-22 16:58:01,957 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed.
[2020-08-22 16:58:01,957 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-08-22 16:58:01,958 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed.
[2020-08-22 16:58:01,959 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= main_~hi~0 .cse0) (< main_~lo~0 (+ main_~hi~0 1)) (<= .cse0 main_~hi~0)))
[2020-08-22 16:58:01,959 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~hi~0 1))) (or (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= main_~hi~0 .cse0) (< main_~lo~0 .cse1) (<= main_~hi~0 main_~lo~0) (<= .cse0 main_~hi~0))) (let ((.cse2 (div .cse1 2))) (and (<= .cse2 1) (<= .cse2 (+ main_~mid~0 1)) (<= main_~lo~0 1) (<= 1 main_~lo~0) (= (mod .cse1 2) 0) (< 0 .cse2)))))
[2020-08-22 16:58:01,959 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 26) no Hoare annotation was computed.
[2020-08-22 16:58:01,959 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true
[2020-08-22 16:58:01,959 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed.
[2020-08-22 16:58:01,960 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed.
[2020-08-22 16:58:01,960 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed.
[2020-08-22 16:58:01,960 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed.
[2020-08-22 16:58:01,960 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed.
[2020-08-22 16:58:01,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:58:01 BoogieIcfgContainer
[2020-08-22 16:58:01,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-22 16:58:01,990 INFO L168 Benchmark]: Toolchain (without parser) took 3095.57 ms. Allocated memory was 145.8 MB in the beginning and 234.9 MB in the end (delta: 89.1 MB). Free memory was 102.1 MB in the beginning and 119.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB.
[2020-08-22 16:58:01,992 INFO L168 Benchmark]: CDTParser took 1.44 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-08-22 16:58:01,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.88 ms. Allocated memory is still 145.8 MB. Free memory was 101.9 MB in the beginning and 92.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
[2020-08-22 16:58:02,001 INFO L168 Benchmark]: Boogie Preprocessor took 118.66 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 92.5 MB in the beginning and 182.3 MB in the end (delta: -89.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
[2020-08-22 16:58:02,005 INFO L168 Benchmark]: RCFGBuilder took 258.82 ms. Allocated memory is still 202.4 MB. Free memory was 182.3 MB in the beginning and 169.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB.
[2020-08-22 16:58:02,010 INFO L168 Benchmark]: TraceAbstraction took 2484.39 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 168.6 MB in the beginning and 119.2 MB in the end (delta: 49.4 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB.
[2020-08-22 16:58:02,017 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.44 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 217.88 ms. Allocated memory is still 145.8 MB. Free memory was 101.9 MB in the beginning and 92.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 118.66 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 92.5 MB in the beginning and 182.3 MB in the end (delta: -89.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 258.82 ms. Allocated memory is still 202.4 MB. Free memory was 182.3 MB in the beginning and 169.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2484.39 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 168.6 MB in the beginning and 119.2 MB in the end (delta: 49.4 MB). Peak memory consumption was 81.9 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: 19]: Loop Invariant
Derived loop invariant: (hi <= 2 * mid + lo && lo < hi + 1) && 2 * mid + lo <= hi
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 SDtfs, 12 SDslu, 90 SDs, 0 SdLazy, 77 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 86 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 124 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 3858 SizeOfPredicates, 6 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/8 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...