/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/test01.c
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This is Ultimate 0.1.25-3af5e1f
[2020-09-04 16:40:06,417 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-04 16:40:06,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-04 16:40:06,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-04 16:40:06,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-04 16:40:06,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-04 16:40:06,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-04 16:40:06,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-04 16:40:06,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-04 16:40:06,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-04 16:40:06,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-04 16:40:06,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-04 16:40:06,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-04 16:40:06,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-04 16:40:06,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-04 16:40:06,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-04 16:40:06,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-04 16:40:06,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-04 16:40:06,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-04 16:40:06,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-04 16:40:06,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-04 16:40:06,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-04 16:40:06,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-04 16:40:06,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-04 16:40:06,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-04 16:40:06,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-04 16:40:06,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-04 16:40:06,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-04 16:40:06,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2020-09-04 16:40:06,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-04 16:40:06,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-04 16:40:06,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-04 16:40:06,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-04 16:40:06,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-04 16:40:06,504 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 16:40:06,523 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-04 16:40:06,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-04 16:40:06,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-04 16:40:06,526 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-04 16:40:06,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-04 16:40:06,526 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-04 16:40:06,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-04 16:40:06,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-04 16:40:06,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-04 16:40:06,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-04 16:40:06,528 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-04 16:40:06,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-04 16:40:06,529 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-04 16:40:06,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-04 16:40:06,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-04 16:40:06,530 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-09-04 16:40:06,530 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-04 16:40:06,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-04 16:40:06,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-04 16:40:06,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-04 16:40:06,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-09-04 16:40:06,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-04 16:40:06,531 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
[2020-09-04 16:40:06,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-04 16:40:07,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-04 16:40:07,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-04 16:40:07,008 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-04 16:40:07,009 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-04 16:40:07,011 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test01.c
[2020-09-04 16:40:07,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c86def5f/475a458ad29743bb9f5ae4c2ad510991/FLAG54214fab0
[2020-09-04 16:40:07,652 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-04 16:40:07,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test01.c
[2020-09-04 16:40:07,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c86def5f/475a458ad29743bb9f5ae4c2ad510991/FLAG54214fab0
[2020-09-04 16:40:08,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c86def5f/475a458ad29743bb9f5ae4c2ad510991
[2020-09-04 16:40:08,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-04 16:40:08,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-04 16:40:08,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-04 16:40:08,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-04 16:40:08,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-04 16:40:08,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a48f1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08, skipping insertion in model container
[2020-09-04 16:40:08,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-04 16:40:08,064 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-04 16:40:08,287 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 16:40:08,295 INFO L203 MainTranslator]: Completed pre-run
[2020-09-04 16:40:08,321 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 16:40:08,347 INFO L208 MainTranslator]: Completed translation
[2020-09-04 16:40:08,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08 WrapperNode
[2020-09-04 16:40:08,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-04 16:40:08,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-04 16:40:08,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-04 16:40:08,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-04 16:40:08,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (1/1) ...
[2020-09-04 16:40:08,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-04 16:40:08,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-04 16:40:08,393 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-04 16:40:08,393 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-04 16:40:08,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (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 16:40:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-04 16:40:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-04 16:40:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-04 16:40:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-04 16:40:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-04 16:40:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-04 16:40:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-04 16:40:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-04 16:40:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-04 16:40:08,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-04 16:40:08,866 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-04 16:40:08,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:08 BoogieIcfgContainer
[2020-09-04 16:40:08,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-04 16:40:08,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-04 16:40:08,882 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-04 16:40:08,891 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-04 16:40:08,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:40:08" (1/3) ...
[2020-09-04 16:40:08,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64dc0a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:08, skipping insertion in model container
[2020-09-04 16:40:08,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:08" (2/3) ...
[2020-09-04 16:40:08,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64dc0a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:08, skipping insertion in model container
[2020-09-04 16:40:08,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:08" (3/3) ...
[2020-09-04 16:40:08,905 INFO L109 eAbstractionObserver]: Analyzing ICFG test01.c
[2020-09-04 16:40:08,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-04 16:40:08,938 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-04 16:40:08,968 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-04 16:40:09,014 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-04 16:40:09,023 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-04 16:40:09,023 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-09-04 16:40:09,023 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-04 16:40:09,023 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-04 16:40:09,023 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-04 16:40:09,023 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-04 16:40:09,024 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-04 16:40:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states.
[2020-09-04 16:40:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-09-04 16:40:09,051 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 16:40:09,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-04 16:40:09,053 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 16:40:09,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 16:40:09,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1046102487, now seen corresponding path program 1 times
[2020-09-04 16:40:09,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-04 16:40:09,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272389985]
[2020-09-04 16:40:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 16:40:09,147 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-09-04 16:40:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 16:40:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 16:40:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 16:40:09,371 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 16:40:09,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272389985]
[2020-09-04 16:40:09,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-04 16:40:09,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-04 16:40:09,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296590379]
[2020-09-04 16:40:09,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-04 16:40:09,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-04 16:40:09,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-04 16:40:09,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-04 16:40:09,400 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states.
[2020-09-04 16:40:09,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 16:40:09,582 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions.
[2020-09-04 16:40:09,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-04 16:40:09,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13
[2020-09-04 16:40:09,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 16:40:09,595 INFO L225 Difference]: With dead ends: 32
[2020-09-04 16:40:09,595 INFO L226 Difference]: Without dead ends: 0
[2020-09-04 16:40:09,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132
[2020-09-04 16:40:09,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-04 16:40:09,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-04 16:40:09,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-04 16:40:09,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-04 16:40:09,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13
[2020-09-04 16:40:09,632 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-04 16:40:09,632 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-04 16:40:09,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-04 16:40:09,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-04 16:40:09,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-04 16:40:09,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-04 16:40:09,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-04 16:40:09,820 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-04 16:40:09,820 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true
[2020-09-04 16:40:09,821 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-04 16:40:09,821 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-04 16:40:09,821 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2020-09-04 16:40:09,821 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2020-09-04 16:40:09,822 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-04 16:40:09,822 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-04 16:40:09,822 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2020-09-04 16:40:09,822 INFO L264 CegarLoopResult]: At program point L5-4(line 5) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)))
[2020-09-04 16:40:09,823 INFO L264 CegarLoopResult]: At program point L5-5(line 5) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)))
[2020-09-04 16:40:09,823 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) the Hoare annotation is: false
[2020-09-04 16:40:09,823 INFO L264 CegarLoopResult]: At program point L5-6(line 5) the Hoare annotation is: false
[2020-09-04 16:40:09,823 INFO L264 CegarLoopResult]: At program point L5-7(line 5) the Hoare annotation is: false
[2020-09-04 16:40:09,824 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 4 17) the Hoare annotation is: (= |old(#valid)| |#valid|)
[2020-09-04 16:40:09,824 INFO L264 CegarLoopResult]: At program point L5-8(line 5) the Hoare annotation is: false
[2020-09-04 16:40:09,824 INFO L264 CegarLoopResult]: At program point L5-9(line 5) the Hoare annotation is: false
[2020-09-04 16:40:09,824 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 4 17) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base))
[2020-09-04 16:40:09,824 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: false
[2020-09-04 16:40:09,825 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-09-04 16:40:09,825 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 4 17) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base))
[2020-09-04 16:40:09,825 INFO L264 CegarLoopResult]: At program point L10(lines 4 17) the Hoare annotation is: false
[2020-09-04 16:40:09,826 INFO L264 CegarLoopResult]: At program point L9(lines 9 11) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-09-04 16:40:09,826 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-09-04 16:40:09,826 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (= (select |#valid| |main_~#a~0.base|) 1)
[2020-09-04 16:40:09,826 INFO L264 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-09-04 16:40:09,827 INFO L264 CegarLoopResult]: At program point L5-2(line 5) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-09-04 16:40:09,827 INFO L264 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)))
[2020-09-04 16:40:09,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:40:09 BoogieIcfgContainer
[2020-09-04 16:40:09,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-04 16:40:09,855 INFO L168 Benchmark]: Toolchain (without parser) took 1836.82 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 100.9 MB in the beginning and 115.6 MB in the end (delta: -14.7 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:09,857 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 137.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-04 16:40:09,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.31 ms. Allocated memory is still 137.9 MB. Free memory was 100.7 MB in the beginning and 91.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:09,859 INFO L168 Benchmark]: Boogie Preprocessor took 42.89 ms. Allocated memory is still 137.9 MB. Free memory was 91.4 MB in the beginning and 89.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:09,860 INFO L168 Benchmark]: RCFGBuilder took 485.58 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 89.8 MB in the beginning and 171.5 MB in the end (delta: -81.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:09,861 INFO L168 Benchmark]: TraceAbstraction took 970.50 ms. Allocated memory is still 205.5 MB. Free memory was 170.8 MB in the beginning and 115.6 MB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB.
[2020-09-04 16:40:09,865 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33 ms. Allocated memory is still 137.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 330.31 ms. Allocated memory is still 137.9 MB. Free memory was 100.7 MB in the beginning and 91.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 42.89 ms. Allocated memory is still 137.9 MB. Free memory was 91.4 MB in the beginning and 89.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 485.58 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 89.8 MB in the beginning and 171.5 MB in the end (delta: -81.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 970.50 ms. Allocated memory is still 205.5 MB. Free memory was 170.8 MB in the beginning and 115.6 MB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 15]: 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: 4]: Loop Invariant
Derived loop invariant: 0
- ProcedureContractResult [Line: 4]: Procedure Contract for main
Derived contract for procedure main: !(p1 == p2)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 19 SDslu, 44 SDs, 0 SdLazy, 34 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 32 NumberOfFragments, 150 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s 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...