/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test03.c
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This is Ultimate 0.1.25-3af5e1f
[2020-09-04 16:40:08,200 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-04 16:40:08,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-04 16:40:08,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-04 16:40:08,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-04 16:40:08,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-04 16:40:08,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-04 16:40:08,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-04 16:40:08,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-04 16:40:08,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-04 16:40:08,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-04 16:40:08,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-04 16:40:08,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-04 16:40:08,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-04 16:40:08,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-04 16:40:08,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-04 16:40:08,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-04 16:40:08,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-04 16:40:08,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-04 16:40:08,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-04 16:40:08,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-04 16:40:08,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-04 16:40:08,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-04 16:40:08,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-04 16:40:08,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-04 16:40:08,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-04 16:40:08,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2020-09-04 16:40:08,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-04 16:40:08,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-04 16:40:08,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-04 16:40:08,280 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 16:40:08,299 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-04 16:40:08,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-04 16:40:08,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-04 16:40:08,304 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-04 16:40:08,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-04 16:40:08,304 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-04 16:40:08,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-04 16:40:08,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-04 16:40:08,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-04 16:40:08,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-04 16:40:08,307 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-04 16:40:08,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-04 16:40:08,308 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-04 16:40:08,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-04 16:40:08,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-04 16:40:08,309 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-09-04 16:40:08,309 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-04 16:40:08,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-04 16:40:08,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-04 16:40:08,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-04 16:40:08,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-09-04 16:40:08,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-04 16:40:08,310 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
[2020-09-04 16:40:08,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-04 16:40:08,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-04 16:40:08,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-04 16:40:08,854 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-04 16:40:08,856 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-04 16:40:08,857 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test03.c
[2020-09-04 16:40:08,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6263c6b1/62e8d652d7144bc0988f3b3121e88a5a/FLAG76cd36791
[2020-09-04 16:40:09,626 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-04 16:40:09,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test03.c
[2020-09-04 16:40:09,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6263c6b1/62e8d652d7144bc0988f3b3121e88a5a/FLAG76cd36791
[2020-09-04 16:40:09,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6263c6b1/62e8d652d7144bc0988f3b3121e88a5a
[2020-09-04 16:40:09,959 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-04 16:40:09,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-04 16:40:09,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-04 16:40:09,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-04 16:40:09,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-04 16:40:09,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:09" (1/1) ...
[2020-09-04 16:40:09,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a18185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:09, skipping insertion in model container
[2020-09-04 16:40:09,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:09" (1/1) ...
[2020-09-04 16:40:09,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-04 16:40:10,011 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-04 16:40:10,230 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 16:40:10,238 INFO L203 MainTranslator]: Completed pre-run
[2020-09-04 16:40:10,260 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 16:40:10,287 INFO L208 MainTranslator]: Completed translation
[2020-09-04 16:40:10,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10 WrapperNode
[2020-09-04 16:40:10,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-04 16:40:10,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-04 16:40:10,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-04 16:40:10,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-04 16:40:10,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (1/1) ...
[2020-09-04 16:40:10,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (1/1) ...
[2020-09-04 16:40:10,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (1/1) ...
[2020-09-04 16:40:10,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (1/1) ...
[2020-09-04 16:40:10,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (1/1) ...
[2020-09-04 16:40:10,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (1/1) ...
[2020-09-04 16:40:10,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (1/1) ...
[2020-09-04 16:40:10,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-04 16:40:10,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-04 16:40:10,431 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-04 16:40:10,431 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-04 16:40:10,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (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 16:40:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-04 16:40:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-04 16:40:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure f
[2020-09-04 16:40:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-04 16:40:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-04 16:40:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure f
[2020-09-04 16:40:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-04 16:40:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-04 16:40:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-04 16:40:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-04 16:40:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-04 16:40:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-04 16:40:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-04 16:40:10,824 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-04 16:40:10,825 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-04 16:40:10,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:10 BoogieIcfgContainer
[2020-09-04 16:40:10,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-04 16:40:10,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-04 16:40:10,835 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-04 16:40:10,839 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-04 16:40:10,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:40:09" (1/3) ...
[2020-09-04 16:40:10,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257e9444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:10, skipping insertion in model container
[2020-09-04 16:40:10,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:10" (2/3) ...
[2020-09-04 16:40:10,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257e9444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:10, skipping insertion in model container
[2020-09-04 16:40:10,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:10" (3/3) ...
[2020-09-04 16:40:10,845 INFO L109 eAbstractionObserver]: Analyzing ICFG test03.c
[2020-09-04 16:40:10,861 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-04 16:40:10,874 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-04 16:40:10,902 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-04 16:40:10,939 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-04 16:40:10,939 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-04 16:40:10,939 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-09-04 16:40:10,939 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-04 16:40:10,940 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-04 16:40:10,940 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-04 16:40:10,940 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-04 16:40:10,940 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-04 16:40:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states.
[2020-09-04 16:40:10,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-09-04 16:40:11,000 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 16:40:11,001 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, 1, 1, 1, 1, 1]
[2020-09-04 16:40:11,002 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 16:40:11,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 16:40:11,012 INFO L82 PathProgramCache]: Analyzing trace with hash -510689140, now seen corresponding path program 1 times
[2020-09-04 16:40:11,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-04 16:40:11,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143565000]
[2020-09-04 16:40:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 16:40:11,106 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-09-04 16:40:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 16:40:11,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 16:40:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 16:40:11,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-04 16:40:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 16:40:11,678 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 16:40:11,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143565000]
[2020-09-04 16:40:11,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-04 16:40:11,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-09-04 16:40:11,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102144052]
[2020-09-04 16:40:11,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-04 16:40:11,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-04 16:40:11,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-04 16:40:11,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2020-09-04 16:40:11,722 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 13 states.
[2020-09-04 16:40:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 16:40:12,302 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions.
[2020-09-04 16:40:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2020-09-04 16:40:12,305 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26
[2020-09-04 16:40:12,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 16:40:12,318 INFO L225 Difference]: With dead ends: 46
[2020-09-04 16:40:12,318 INFO L226 Difference]: Without dead ends: 0
[2020-09-04 16:40:12,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552
[2020-09-04 16:40:12,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-04 16:40:12,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-04 16:40:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-04 16:40:12,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-04 16:40:12,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2020-09-04 16:40:12,368 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-04 16:40:12,368 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-04 16:40:12,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-04 16:40:12,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-04 16:40:12,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-04 16:40:12,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-04 16:40:12,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-04 16:40:12,766 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-04 16:40:12,767 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true
[2020-09-04 16:40:12,767 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-04 16:40:12,767 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~q~0 |old(~q~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-04 16:40:12,768 INFO L271 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true
[2020-09-04 16:40:12,768 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2020-09-04 16:40:12,768 INFO L264 CegarLoopResult]: At program point fEXIT(lines 4 6) the Hoare annotation is: (and (= |f_#in~p2.base| f_~p2.base) (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|) (= |f_#in~p1.base| f_~p1.base))
[2020-09-04 16:40:12,768 INFO L271 CegarLoopResult]: At program point fENTRY(lines 4 6) the Hoare annotation is: true
[2020-09-04 16:40:12,769 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (and (= |f_#in~p2.base| f_~p2.base) (= |f_#in~p1.base| f_~p1.base))
[2020-09-04 16:40:12,769 INFO L264 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: (= |f_#in~p1.base| f_~p1.base)
[2020-09-04 16:40:12,769 INFO L264 CegarLoopResult]: At program point fFINAL(lines 4 6) the Hoare annotation is: (and (= |f_#in~p2.base| f_~p2.base) (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|) (= |f_#in~p1.base| f_~p1.base))
[2020-09-04 16:40:12,770 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2020-09-04 16:40:12,770 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-04 16:40:12,770 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-04 16:40:12,770 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2020-09-04 16:40:12,770 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: false
[2020-09-04 16:40:12,770 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 10 28) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base))
[2020-09-04 16:40:12,771 INFO L264 CegarLoopResult]: At program point L21(lines 10 28) the Hoare annotation is: false
[2020-09-04 16:40:12,771 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-09-04 16:40:12,771 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 10 28) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base))
[2020-09-04 16:40:12,771 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (= (select |#valid| |main_~#a~0.base|) 1)
[2020-09-04 16:40:12,772 INFO L264 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-09-04 16:40:12,772 INFO L264 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,772 INFO L264 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,773 INFO L264 CegarLoopResult]: At program point L11-4(line 11) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base))
[2020-09-04 16:40:12,773 INFO L264 CegarLoopResult]: At program point L11-5(line 11) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base))
[2020-09-04 16:40:12,773 INFO L264 CegarLoopResult]: At program point L11-6(line 11) the Hoare annotation is: false
[2020-09-04 16:40:12,773 INFO L264 CegarLoopResult]: At program point L11-7(line 11) the Hoare annotation is: false
[2020-09-04 16:40:12,773 INFO L264 CegarLoopResult]: At program point L11-8(line 11) the Hoare annotation is: false
[2020-09-04 16:40:12,774 INFO L264 CegarLoopResult]: At program point L11-9(line 11) the Hoare annotation is: false
[2020-09-04 16:40:12,774 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: false
[2020-09-04 16:40:12,774 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 28) the Hoare annotation is: (and (= ~q~0 |old(~q~0)|) (= |old(#valid)| |#valid|))
[2020-09-04 16:40:12,775 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,775 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,775 INFO L264 CegarLoopResult]: At program point L20-1(lines 20 22) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |main_#t~mem1| 0) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,776 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,776 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: false
[2020-09-04 16:40:12,776 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (= |main_#t~ret0| 0) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,776 INFO L264 CegarLoopResult]: At program point L20-3(line 20) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |main_#t~mem1| 0) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,777 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,777 INFO L264 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (and (= |main_#t~ret0| 0) (not (= main_~p1~0.base main_~p2~0.base)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,777 INFO L264 CegarLoopResult]: At program point L18-3(line 18) the Hoare annotation is: (and (= |main_#t~ret0| 0) (not (= main_~p1~0.base main_~p2~0.base)) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 0) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= main_~p1~0.base |main_~#a~0.base|))
[2020-09-04 16:40:12,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:40:12 BoogieIcfgContainer
[2020-09-04 16:40:12,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-04 16:40:12,812 INFO L168 Benchmark]: Toolchain (without parser) took 2848.91 ms. Allocated memory was 144.2 MB in the beginning and 232.3 MB in the end (delta: 88.1 MB). Free memory was 100.3 MB in the beginning and 148.8 MB in the end (delta: -48.5 MB). Peak memory consumption was 39.6 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:12,813 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 144.2 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-04 16:40:12,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.05 ms. Allocated memory is still 144.2 MB. Free memory was 100.0 MB in the beginning and 90.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:12,815 INFO L168 Benchmark]: Boogie Preprocessor took 140.72 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 90.4 MB in the beginning and 180.2 MB in the end (delta: -89.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:12,816 INFO L168 Benchmark]: RCFGBuilder took 402.60 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 164.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:12,818 INFO L168 Benchmark]: TraceAbstraction took 1972.95 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 164.5 MB in the beginning and 148.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:12,823 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.37 ms. Allocated memory is still 144.2 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 326.05 ms. Allocated memory is still 144.2 MB. Free memory was 100.0 MB in the beginning and 90.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 140.72 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 90.4 MB in the beginning and 180.2 MB in the end (delta: -89.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 402.60 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 164.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1972.95 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 164.5 MB in the beginning and 148.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 26]: 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: 10]: Loop Invariant
Derived loop invariant: 0
- ProcedureContractResult [Line: 4]: Procedure Contract for f
Derived contract for procedure f: ((p2 == p2 && (p1 == p2 || \result <= 0)) && 0 <= \result) && p1 == p1
- ProcedureContractResult [Line: 10]: Procedure Contract for main
Derived contract for procedure main: !(p1 == p2)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 53 SDslu, 128 SDs, 0 SdLazy, 118 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 42 PreInvPairs, 46 NumberOfFragments, 365 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...