/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/ldv-regression/test15.c
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This is Ultimate 0.1.25-72570d3
[2020-08-22 22:19:24,985 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-08-22 22:19:24,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-22 22:19:25,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-22 22:19:25,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-22 22:19:25,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-22 22:19:25,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-22 22:19:25,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-22 22:19:25,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-22 22:19:25,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-08-22 22:19:25,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-22 22:19:25,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-22 22:19:25,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-22 22:19:25,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-22 22:19:25,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-22 22:19:25,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-22 22:19:25,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-08-22 22:19:25,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-22 22:19:25,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-08-22 22:19:25,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-08-22 22:19:25,068 INFO L113 SettingsManager]: Loading preferences was successful
[2020-08-22 22:19:25,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-22 22:19:25,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-22 22:19:25,073 INFO L138 SettingsManager]: * sizeof long=4
[2020-08-22 22:19:25,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-08-22 22:19:25,074 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-08-22 22:19:25,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-08-22 22:19:25,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-08-22 22:19:25,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-22 22:19:25,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-08-22 22:19:25,074 INFO L138 SettingsManager]: * sizeof long double=12
[2020-08-22 22:19:25,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-08-22 22:19:25,075 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-08-22 22:19:25,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-08-22 22:19:25,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-22 22:19:25,076 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-08-22 22:19:25,078 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-08-22 22:19:25,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-08-22 22:19:25,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 22:19:25,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-22 22:19:25,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-08-22 22:19:25,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-22 22:19:25,079 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
[2020-08-22 22:19:25,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-22 22:19:25,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-22 22:19:25,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-22 22:19:25,449 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-08-22 22:19:25,449 INFO L275 PluginConnector]: CDTParser initialized
[2020-08-22 22:19:25,450 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test15.c
[2020-08-22 22:19:25,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0775df86/d7fed602cb2645029389b2713c95dffe/FLAGc97f439d3
[2020-08-22 22:19:26,031 INFO L306 CDTParser]: Found 1 translation units.
[2020-08-22 22:19:26,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test15.c
[2020-08-22 22:19:26,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0775df86/d7fed602cb2645029389b2713c95dffe/FLAGc97f439d3
[2020-08-22 22:19:26,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0775df86/d7fed602cb2645029389b2713c95dffe
[2020-08-22 22:19:26,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-22 22:19:26,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-22 22:19:26,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-22 22:19:26,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-22 22:19:26,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-22 22:19:26,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7061e264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26, skipping insertion in model container
[2020-08-22 22:19:26,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-08-22 22:19:26,463 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-08-22 22:19:26,641 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-22 22:19:26,655 INFO L203 MainTranslator]: Completed pre-run
[2020-08-22 22:19:26,669 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-22 22:19:26,685 INFO L208 MainTranslator]: Completed translation
[2020-08-22 22:19:26,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26 WrapperNode
[2020-08-22 22:19:26,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-22 22:19:26,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-22 22:19:26,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-22 22:19:26,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-08-22 22:19:26,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (1/1) ...
[2020-08-22 22:19:26,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-22 22:19:26,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-22 22:19:26,809 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-08-22 22:19:26,809 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-08-22 22:19:26,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 22:19:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-22 22:19:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-22 22:19:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assign
[2020-08-22 22:19:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-08-22 22:19:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-22 22:19:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-22 22:19:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure assign
[2020-08-22 22:19:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-08-22 22:19:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-08-22 22:19:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-08-22 22:19:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-08-22 22:19:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-22 22:19:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-22 22:19:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-22 22:19:27,132 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-22 22:19:27,133 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-08-22 22:19:27,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:19:27 BoogieIcfgContainer
[2020-08-22 22:19:27,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-22 22:19:27,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-22 22:19:27,145 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-08-22 22:19:27,149 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-08-22 22:19:27,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:19:26" (1/3) ...
[2020-08-22 22:19:27,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52065fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:19:27, skipping insertion in model container
[2020-08-22 22:19:27,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:19:26" (2/3) ...
[2020-08-22 22:19:27,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52065fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:19:27, skipping insertion in model container
[2020-08-22 22:19:27,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:19:27" (3/3) ...
[2020-08-22 22:19:27,154 INFO L109 eAbstractionObserver]: Analyzing ICFG test15.c
[2020-08-22 22:19:27,173 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-22 22:19:27,186 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-22 22:19:27,210 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-22 22:19:27,273 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-08-22 22:19:27,274 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-08-22 22:19:27,274 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-22 22:19:27,274 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-22 22:19:27,276 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-22 22:19:27,276 INFO L380 AbstractCegarLoop]: Difference is false
[2020-08-22 22:19:27,276 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-22 22:19:27,276 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-22 22:19:27,296 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states.
[2020-08-22 22:19:27,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-08-22 22:19:27,313 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 22:19:27,314 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]
[2020-08-22 22:19:27,315 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 22:19:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 22:19:27,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1875144090, now seen corresponding path program 1 times
[2020-08-22 22:19:27,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 22:19:27,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635133814]
[2020-08-22 22:19:27,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 22:19:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:19:27,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 22:19:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:19:27,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-22 22:19:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:19:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 22:19:28,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635133814]
[2020-08-22 22:19:28,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 22:19:28,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-08-22 22:19:28,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166864428]
[2020-08-22 22:19:28,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-08-22 22:19:28,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 22:19:28,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-08-22 22:19:28,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2020-08-22 22:19:28,073 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 13 states.
[2020-08-22 22:19:28,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 22:19:28,835 INFO L93 Difference]: Finished difference Result 47 states and 46 transitions.
[2020-08-22 22:19:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2020-08-22 22:19:28,838 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26
[2020-08-22 22:19:28,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 22:19:28,847 INFO L225 Difference]: With dead ends: 47
[2020-08-22 22:19:28,848 INFO L226 Difference]: Without dead ends: 0
[2020-08-22 22:19:28,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650
[2020-08-22 22:19:28,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-08-22 22:19:28,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-08-22 22:19:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-08-22 22:19:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-08-22 22:19:28,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2020-08-22 22:19:28,886 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 22:19:28,887 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-08-22 22:19:28,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-08-22 22:19:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-08-22 22:19:28,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-08-22 22:19:28,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-22 22:19:28,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-08-22 22:19:29,267 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-08-22 22:19:29,268 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true
[2020-08-22 22:19:29,268 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-08-22 22:19:29,268 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-08-22 22:19:29,268 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2020-08-22 22:19:29,269 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2020-08-22 22:19:29,269 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-08-22 22:19:29,269 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-08-22 22:19:29,269 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2020-08-22 22:19:29,269 INFO L264 CegarLoopResult]: At program point L10-9(line 10) the Hoare annotation is: false
[2020-08-22 22:19:29,270 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 9 21) the Hoare annotation is: true
[2020-08-22 22:19:29,270 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)))
[2020-08-22 22:19:29,270 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))) (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= .cse0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= .cse0 |main_#t~mem2|)))
[2020-08-22 22:19:29,271 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 9 21) the Hoare annotation is: true
[2020-08-22 22:19:29,271 INFO L264 CegarLoopResult]: At program point L13-1(lines 13 15) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))) (and (= |main_#t~mem3| |main_#t~mem2|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= .cse0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= .cse0 |main_#t~mem2|)))
[2020-08-22 22:19:29,271 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |#memory_int| |old(#memory_int)|) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-08-22 22:19:29,271 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: false
[2020-08-22 22:19:29,272 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))
[2020-08-22 22:19:29,272 INFO L264 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: false
[2020-08-22 22:19:29,272 INFO L264 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))) (and (= |main_#t~mem3| |main_#t~mem2|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= .cse0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= .cse0 |main_#t~mem2|)))
[2020-08-22 22:19:29,273 INFO L264 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)))
[2020-08-22 22:19:29,273 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: false
[2020-08-22 22:19:29,273 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 9 21) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|))
[2020-08-22 22:19:29,273 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: false
[2020-08-22 22:19:29,274 INFO L264 CegarLoopResult]: At program point L14(lines 9 21) the Hoare annotation is: false
[2020-08-22 22:19:29,274 INFO L264 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-08-22 22:19:29,274 INFO L264 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)))
[2020-08-22 22:19:29,275 INFO L264 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-08-22 22:19:29,275 INFO L264 CegarLoopResult]: At program point L10-1(line 10) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |#memory_int| |old(#memory_int)|) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-08-22 22:19:29,275 INFO L264 CegarLoopResult]: At program point L10-2(line 10) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)))
[2020-08-22 22:19:29,275 INFO L264 CegarLoopResult]: At program point L10-3(line 10) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)))
[2020-08-22 22:19:29,276 INFO L271 CegarLoopResult]: At program point L10-4(line 10) the Hoare annotation is: true
[2020-08-22 22:19:29,276 INFO L271 CegarLoopResult]: At program point L10-5(line 10) the Hoare annotation is: true
[2020-08-22 22:19:29,276 INFO L264 CegarLoopResult]: At program point L10-6(line 10) the Hoare annotation is: false
[2020-08-22 22:19:29,276 INFO L264 CegarLoopResult]: At program point L10-7(line 10) the Hoare annotation is: false
[2020-08-22 22:19:29,276 INFO L264 CegarLoopResult]: At program point L10-8(line 10) the Hoare annotation is: false
[2020-08-22 22:19:29,277 INFO L264 CegarLoopResult]: At program point assignEXIT(lines 5 7) the Hoare annotation is: (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or (= |assign_#in~pa.base| |assign_#in~pb.base|) (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pb.offset |assign_#in~pb.offset|))
[2020-08-22 22:19:29,277 INFO L264 CegarLoopResult]: At program point assignENTRY(lines 5 7) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|)
[2020-08-22 22:19:29,277 INFO L264 CegarLoopResult]: At program point assignFINAL(lines 5 7) the Hoare annotation is: (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or (= |assign_#in~pa.base| |assign_#in~pb.base|) (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pb.offset |assign_#in~pb.offset|))
[2020-08-22 22:19:29,277 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (= |#memory_int| |old(#memory_int)|) (= assign_~pb.offset |assign_#in~pb.offset|))
[2020-08-22 22:19:29,278 INFO L264 CegarLoopResult]: At program point L5(lines 5 7) the Hoare annotation is: (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (= |#memory_int| |old(#memory_int)|))
[2020-08-22 22:19:29,278 INFO L264 CegarLoopResult]: At program point L6-1(line 6) the Hoare annotation is: (and (or (= |assign_#in~pa.base| |assign_#in~pb.base|) (= |assign_#t~mem0| (select (select (store |#memory_int| assign_~pa.base (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem0|)) |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (= |#memory_int| |old(#memory_int)|) (= assign_~pb.offset |assign_#in~pb.offset|))
[2020-08-22 22:19:29,278 INFO L264 CegarLoopResult]: At program point L6-2(line 6) the Hoare annotation is: (let ((.cse0 (= |assign_#in~pa.base| |assign_#in~pb.base|))) (and (or .cse0 (= |assign_#t~mem0| (select (select (store |#memory_int| assign_~pa.base (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem0|)) |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or .cse0 (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pb.offset |assign_#in~pb.offset|)))
[2020-08-22 22:19:29,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-08-22 22:19:29,295 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-08-22 22:19:29,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:19:29 BoogieIcfgContainer
[2020-08-22 22:19:29,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-22 22:19:29,304 INFO L168 Benchmark]: Toolchain (without parser) took 2883.75 ms. Allocated memory was 137.9 MB in the beginning and 233.3 MB in the end (delta: 95.4 MB). Free memory was 102.3 MB in the beginning and 103.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 93.8 MB. Max. memory is 7.1 GB.
[2020-08-22 22:19:29,305 INFO L168 Benchmark]: CDTParser took 1.09 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-08-22 22:19:29,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.35 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 92.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2020-08-22 22:19:29,308 INFO L168 Benchmark]: Boogie Preprocessor took 121.72 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 92.4 MB in the beginning and 180.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB.
[2020-08-22 22:19:29,309 INFO L168 Benchmark]: RCFGBuilder took 333.80 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 165.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB.
[2020-08-22 22:19:29,310 INFO L168 Benchmark]: TraceAbstraction took 2157.10 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 164.4 MB in the beginning and 103.9 MB in the end (delta: 60.5 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB.
[2020-08-22 22:19:29,314 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.09 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 262.35 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 92.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 121.72 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 92.4 MB in the beginning and 180.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 333.80 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 165.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2157.10 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 164.4 MB in the beginning and 103.9 MB in the end (delta: 60.5 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 19]: 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: 9]: Loop Invariant
Derived loop invariant: 0
- ProcedureContractResult [Line: 9]: Procedure Contract for main
Derived contract for procedure main: 1
- ProcedureContractResult [Line: 5]: Procedure Contract for assign
[2020-08-22 22:19:29,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-08-22 22:19:29,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-08-22 22:19:29,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-08-22 22:19:29,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
Derived contract for procedure assign: (((pa == pa && pb == pb) && pa == pa) && (pa == pb || unknown-#memory_int-unknown[pa][pa] == unknown-#memory_int-unknown[pb][pb])) && pb == pb
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 43 SDslu, 99 SDs, 0 SdLazy, 172 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 43 LocationsWithAnnotation, 43 PreInvPairs, 47 NumberOfFragments, 450 HoareAnnotationTreeSize, 43 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 43 FomulaSimplificationsInter, 81 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 3875 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...