/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/sum01-2.i
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This is Ultimate 0.1.25-3af5e1f
[2020-09-04 23:10:38,058 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-04 23:10:38,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-04 23:10:38,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-04 23:10:38,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-04 23:10:38,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-04 23:10:38,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-04 23:10:38,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-04 23:10:38,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-04 23:10:38,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-04 23:10:38,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-04 23:10:38,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-04 23:10:38,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-04 23:10:38,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-04 23:10:38,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-04 23:10:38,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-04 23:10:38,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-04 23:10:38,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-04 23:10:38,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-04 23:10:38,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-04 23:10:38,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-04 23:10:38,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-04 23:10:38,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-04 23:10:38,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-04 23:10:38,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-04 23:10:38,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-04 23:10:38,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2020-09-04 23:10:38,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-04 23:10:38,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-04 23:10:38,157 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-09-04 23:10:38,185 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-04 23:10:38,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-04 23:10:38,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-04 23:10:38,188 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-04 23:10:38,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-04 23:10:38,188 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-04 23:10:38,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-04 23:10:38,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-04 23:10:38,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-04 23:10:38,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-04 23:10:38,191 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-04 23:10:38,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-04 23:10:38,191 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-04 23:10:38,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-04 23:10:38,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-04 23:10:38,193 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-09-04 23:10:38,193 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-04 23:10:38,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-04 23:10:38,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-04 23:10:38,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-04 23:10:38,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-09-04 23:10:38,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-04 23:10:38,195 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true
[2020-09-04 23:10:38,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-04 23:10:38,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-04 23:10:38,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-04 23:10:38,705 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-04 23:10:38,705 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-04 23:10:38,706 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum01-2.i
[2020-09-04 23:10:38,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74e7290e4/c2ff4648f8d94770b05e602bab28cb0a/FLAG6e390f3b3
[2020-09-04 23:10:39,348 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-04 23:10:39,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/sum01-2.i
[2020-09-04 23:10:39,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74e7290e4/c2ff4648f8d94770b05e602bab28cb0a/FLAG6e390f3b3
[2020-09-04 23:10:39,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74e7290e4/c2ff4648f8d94770b05e602bab28cb0a
[2020-09-04 23:10:39,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-04 23:10:39,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-04 23:10:39,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-04 23:10:39,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-04 23:10:39,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-04 23:10:39,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:10:39" (1/1) ...
[2020-09-04 23:10:39,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243023c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:39, skipping insertion in model container
[2020-09-04 23:10:39,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:10:39" (1/1) ...
[2020-09-04 23:10:39,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-04 23:10:39,746 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-04 23:10:39,982 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 23:10:39,989 INFO L203 MainTranslator]: Completed pre-run
[2020-09-04 23:10:40,010 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 23:10:40,030 INFO L208 MainTranslator]: Completed translation
[2020-09-04 23:10:40,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40 WrapperNode
[2020-09-04 23:10:40,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-04 23:10:40,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-04 23:10:40,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-04 23:10:40,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-04 23:10:40,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (1/1) ...
[2020-09-04 23:10:40,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (1/1) ...
[2020-09-04 23:10:40,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (1/1) ...
[2020-09-04 23:10:40,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (1/1) ...
[2020-09-04 23:10:40,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (1/1) ...
[2020-09-04 23:10:40,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (1/1) ...
[2020-09-04 23:10:40,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (1/1) ...
[2020-09-04 23:10:40,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-04 23:10:40,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-04 23:10:40,147 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-04 23:10:40,147 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-04 23:10:40,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-09-04 23:10:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-04 23:10:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-04 23:10:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-04 23:10:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-04 23:10:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-04 23:10:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-04 23:10:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-04 23:10:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-04 23:10:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-04 23:10:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-04 23:10:40,448 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-04 23:10:40,448 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-04 23:10:40,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:10:40 BoogieIcfgContainer
[2020-09-04 23:10:40,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-04 23:10:40,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-04 23:10:40,456 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-04 23:10:40,460 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-04 23:10:40,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 11:10:39" (1/3) ...
[2020-09-04 23:10:40,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aacea9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:10:40, skipping insertion in model container
[2020-09-04 23:10:40,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:10:40" (2/3) ...
[2020-09-04 23:10:40,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aacea9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:10:40, skipping insertion in model container
[2020-09-04 23:10:40,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:10:40" (3/3) ...
[2020-09-04 23:10:40,465 INFO L109 eAbstractionObserver]: Analyzing ICFG sum01-2.i
[2020-09-04 23:10:40,475 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-04 23:10:40,486 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-04 23:10:40,507 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-04 23:10:40,535 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-04 23:10:40,535 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-04 23:10:40,535 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-04 23:10:40,535 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-04 23:10:40,535 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-04 23:10:40,536 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-04 23:10:40,536 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-04 23:10:40,536 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-04 23:10:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states.
[2020-09-04 23:10:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-09-04 23:10:40,570 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 23:10:40,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-04 23:10:40,573 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 23:10:40,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 23:10:40,581 INFO L82 PathProgramCache]: Analyzing trace with hash 2078788022, now seen corresponding path program 1 times
[2020-09-04 23:10:40,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-04 23:10:40,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194595394]
[2020-09-04 23:10:40,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 23:10:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 23:10:40,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 23:10:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 23:10:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-04 23:10:40,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194595394]
[2020-09-04 23:10:40,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-04 23:10:40,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-04 23:10:40,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572702185]
[2020-09-04 23:10:40,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-04 23:10:40,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-04 23:10:40,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-04 23:10:40,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-04 23:10:40,888 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states.
[2020-09-04 23:10:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 23:10:40,994 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions.
[2020-09-04 23:10:40,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-04 23:10:40,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16
[2020-09-04 23:10:40,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 23:10:41,010 INFO L225 Difference]: With dead ends: 48
[2020-09-04 23:10:41,010 INFO L226 Difference]: Without dead ends: 23
[2020-09-04 23:10:41,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-04 23:10:41,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2020-09-04 23:10:41,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22.
[2020-09-04 23:10:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2020-09-04 23:10:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions.
[2020-09-04 23:10:41,061 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 16
[2020-09-04 23:10:41,062 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-04 23:10:41,062 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions.
[2020-09-04 23:10:41,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-04 23:10:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions.
[2020-09-04 23:10:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-09-04 23:10:41,064 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 23:10:41,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-04 23:10:41,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-04 23:10:41,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 23:10:41,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 23:10:41,066 INFO L82 PathProgramCache]: Analyzing trace with hash 493290783, now seen corresponding path program 1 times
[2020-09-04 23:10:41,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-04 23:10:41,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904241059]
[2020-09-04 23:10:41,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 23:10:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 23:10:41,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 23:10:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 23:10:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-04 23:10:41,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904241059]
[2020-09-04 23:10:41,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-04 23:10:41,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-04 23:10:41,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956754503]
[2020-09-04 23:10:41,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-04 23:10:41,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-04 23:10:41,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-04 23:10:41,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2020-09-04 23:10:41,503 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 11 states.
[2020-09-04 23:10:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 23:10:41,774 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions.
[2020-09-04 23:10:41,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-04 23:10:41,775 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21
[2020-09-04 23:10:41,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 23:10:41,777 INFO L225 Difference]: With dead ends: 33
[2020-09-04 23:10:41,777 INFO L226 Difference]: Without dead ends: 28
[2020-09-04 23:10:41,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240
[2020-09-04 23:10:41,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2020-09-04 23:10:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27.
[2020-09-04 23:10:41,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states.
[2020-09-04 23:10:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions.
[2020-09-04 23:10:41,790 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 21
[2020-09-04 23:10:41,790 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-04 23:10:41,791 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions.
[2020-09-04 23:10:41,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-04 23:10:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions.
[2020-09-04 23:10:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-09-04 23:10:41,806 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 23:10:41,806 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-04 23:10:41,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-04 23:10:41,807 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 23:10:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 23:10:41,808 INFO L82 PathProgramCache]: Analyzing trace with hash -194935978, now seen corresponding path program 2 times
[2020-09-04 23:10:41,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-04 23:10:41,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735366310]
[2020-09-04 23:10:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 23:10:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 23:10:42,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 23:10:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 23:10:42,187 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-04 23:10:42,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735366310]
[2020-09-04 23:10:42,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-04 23:10:42,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-04 23:10:42,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179578195]
[2020-09-04 23:10:42,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-04 23:10:42,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-04 23:10:42,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-04 23:10:42,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156
[2020-09-04 23:10:42,190 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 13 states.
[2020-09-04 23:10:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 23:10:42,510 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions.
[2020-09-04 23:10:42,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-04 23:10:42,510 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26
[2020-09-04 23:10:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 23:10:42,511 INFO L225 Difference]: With dead ends: 27
[2020-09-04 23:10:42,511 INFO L226 Difference]: Without dead ends: 0
[2020-09-04 23:10:42,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462
[2020-09-04 23:10:42,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-04 23:10:42,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-04 23:10:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-04 23:10:42,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-04 23:10:42,513 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2020-09-04 23:10:42,514 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-04 23:10:42,514 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-04 23:10:42,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-04 23:10:42,514 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-04 23:10:42,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-04 23:10:42,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-04 23:10:42,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-04 23:10:42,802 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-04 23:10:42,802 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2020-09-04 23:10:42,803 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2020-09-04 23:10:42,803 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-04 23:10:42,803 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-04 23:10:42,803 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2020-09-04 23:10:42,803 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 11 18) the Hoare annotation is: true
[2020-09-04 23:10:42,804 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0)) (.cse1 (+ main_~sn~0 2))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= .cse1 (* 2 main_~n~0))))
[2020-09-04 23:10:42,804 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (= main_~sn~0 0)
[2020-09-04 23:10:42,804 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 11 18) the Hoare annotation is: true
[2020-09-04 23:10:42,805 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (= main_~sn~0 0)
[2020-09-04 23:10:42,805 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true
[2020-09-04 23:10:42,805 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= main_~sn~0 0)
[2020-09-04 23:10:42,805 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true
[2020-09-04 23:10:42,805 INFO L271 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true
[2020-09-04 23:10:42,806 INFO L264 CegarLoopResult]: At program point L14-3(lines 14 16) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0) (< main_~sn~0 (+ (* 2 main_~n~0) 1))))
[2020-09-04 23:10:42,806 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true
[2020-09-04 23:10:42,807 INFO L264 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (let ((.cse1 (* 2 main_~i~0)) (.cse0 (* 2 |main_#t~post1|))) (and (<= main_~sn~0 .cse0) (<= .cse1 main_~sn~0) (<= main_~sn~0 .cse1) (<= .cse0 main_~sn~0) (< main_~sn~0 (+ (* 2 main_~n~0) 1))))
[2020-09-04 23:10:42,808 INFO L271 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true
[2020-09-04 23:10:42,810 INFO L264 CegarLoopResult]: At program point L14-5(line 14) the Hoare annotation is: (let ((.cse0 (* 2 |main_#t~post1|)) (.cse2 (+ main_~sn~0 2)) (.cse1 (* 2 main_~i~0))) (and (<= main_~sn~0 .cse0) (<= .cse1 .cse2) (<= .cse0 main_~sn~0) (<= .cse2 .cse1) (< main_~sn~0 (+ (* 2 main_~n~0) 1))))
[2020-09-04 23:10:42,810 INFO L264 CegarLoopResult]: At program point L14-6(lines 14 16) the Hoare annotation is: (let ((.cse3 (* 2 main_~i~0)) (.cse2 (+ main_~sn~0 2))) (let ((.cse0 (<= .cse3 .cse2)) (.cse1 (<= .cse2 .cse3))) (or (and (= main_~sn~0 0) .cse0 .cse1) (and .cse0 .cse1 (< main_~sn~0 (+ (* 2 main_~n~0) 1))))))
[2020-09-04 23:10:42,811 INFO L264 CegarLoopResult]: At program point L14-7(lines 14 16) the Hoare annotation is: (or (= main_~sn~0 0) (let ((.cse0 (* 2 main_~n~0))) (and (<= .cse0 main_~sn~0) (< main_~sn~0 (+ .cse0 1)))))
[2020-09-04 23:10:42,812 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true
[2020-09-04 23:10:42,812 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 4 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2020-09-04 23:10:42,812 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0)
[2020-09-04 23:10:42,813 INFO L264 CegarLoopResult]: At program point L5(lines 5 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2020-09-04 23:10:42,813 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0)
[2020-09-04 23:10:42,813 INFO L264 CegarLoopResult]: At program point L5-2(lines 4 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2020-09-04 23:10:42,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 11:10:42 BoogieIcfgContainer
[2020-09-04 23:10:42,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-04 23:10:42,861 INFO L168 Benchmark]: Toolchain (without parser) took 3154.76 ms. Allocated memory was 139.5 MB in the beginning and 235.9 MB in the end (delta: 96.5 MB). Free memory was 103.7 MB in the beginning and 105.8 MB in the end (delta: -2.1 MB). Peak memory consumption was 94.4 MB. Max. memory is 7.1 GB.
[2020-09-04 23:10:42,863 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-04 23:10:42,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.65 ms. Allocated memory is still 139.5 MB. Free memory was 103.5 MB in the beginning and 94.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
[2020-09-04 23:10:42,866 INFO L168 Benchmark]: Boogie Preprocessor took 115.27 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 94.0 MB in the beginning and 182.0 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB.
[2020-09-04 23:10:42,868 INFO L168 Benchmark]: RCFGBuilder took 307.05 ms. Allocated memory is still 202.9 MB. Free memory was 182.0 MB in the beginning and 169.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB.
[2020-09-04 23:10:42,874 INFO L168 Benchmark]: TraceAbstraction took 2400.07 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 168.5 MB in the beginning and 105.8 MB in the end (delta: 62.7 MB). Peak memory consumption was 95.7 MB. Max. memory is 7.1 GB.
[2020-09-04 23:10:42,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 326.65 ms. Allocated memory is still 139.5 MB. Free memory was 103.5 MB in the beginning and 94.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 115.27 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 94.0 MB in the beginning and 182.0 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 307.05 ms. Allocated memory is still 202.9 MB. Free memory was 182.0 MB in the beginning and 169.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2400.07 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 168.5 MB in the beginning and 105.8 MB in the end (delta: 62.7 MB). Peak memory consumption was 95.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 6]: 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: 14]: Loop Invariant
Derived loop invariant: ((sn == 0 && 2 * i <= sn + 2) && sn + 2 <= 2 * i) || ((2 * i <= sn + 2 && sn + 2 <= 2 * i) && sn < 2 * n + 1)
- ProcedureContractResult [Line: 11]: Procedure Contract for main
Derived contract for procedure main: 1
- ProcedureContractResult [Line: 4]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 23 SDslu, 261 SDs, 0 SdLazy, 177 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 46 PreInvPairs, 67 NumberOfFragments, 211 HoareAnnotationTreeSize, 46 FomulaSimplifications, 229 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 53 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 9040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 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...