java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/stroeder1-alloca_true-valid-memsafety_true-termination.i
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This is Ultimate 0.1.23-26d9e06-m
[2018-02-02 08:47:10,436 INFO L170 SettingsManager]: Resetting all preferences to default values...
[2018-02-02 08:47:10,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values
[2018-02-02 08:47:10,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-02-02 08:47:10,450 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-02-02 08:47:10,451 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-02-02 08:47:10,451 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-02-02 08:47:10,453 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values
[2018-02-02 08:47:10,454 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-02-02 08:47:10,455 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-02-02 08:47:10,456 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-02-02 08:47:10,456 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-02-02 08:47:10,457 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-02-02 08:47:10,458 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-02-02 08:47:10,458 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-02-02 08:47:10,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-02-02 08:47:10,461 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values
[2018-02-02 08:47:10,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-02-02 08:47:10,464 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-02-02 08:47:10,465 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-02-02 08:47:10,466 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-02-02 08:47:10,466 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-02-02 08:47:10,467 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-02-02 08:47:10,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-02-02 08:47:10,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values
[2018-02-02 08:47:10,469 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-02-02 08:47:10,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values
[2018-02-02 08:47:10,469 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring...
[2018-02-02 08:47:10,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-02-02 08:47:10,470 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values
[2018-02-02 08:47:10,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values...
[2018-02-02 08:47:10,471 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf
[2018-02-02 08:47:10,480 INFO L110 SettingsManager]: Loading preferences was successful
[2018-02-02 08:47:10,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file:
[2018-02-02 08:47:10,481 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-02-02 08:47:10,481 INFO L133 SettingsManager]: * Create parallel compositions if possible=false
[2018-02-02 08:47:10,481 INFO L133 SettingsManager]: * Use SBE=true
[2018-02-02 08:47:10,481 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-02-02 08:47:10,481 INFO L133 SettingsManager]: * sizeof long=4
[2018-02-02 08:47:10,481 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2018-02-02 08:47:10,482 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true
[2018-02-02 08:47:10,482 INFO L133 SettingsManager]: * sizeof POINTER=4
[2018-02-02 08:47:10,482 INFO L133 SettingsManager]: * Check division by zero=IGNORE
[2018-02-02 08:47:10,482 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2018-02-02 08:47:10,482 INFO L133 SettingsManager]: * Bitprecise bitfields=true
[2018-02-02 08:47:10,482 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2018-02-02 08:47:10,483 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-02-02 08:47:10,483 INFO L133 SettingsManager]: * sizeof long double=12
[2018-02-02 08:47:10,483 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-02-02 08:47:10,483 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements
[2018-02-02 08:47:10,483 INFO L133 SettingsManager]: * To the following directory=./dump/
[2018-02-02 08:47:10,483 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode
[2018-02-02 08:47:10,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-02-02 08:47:10,484 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-02-02 08:47:10,484 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK
[2018-02-02 08:47:10,484 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2018-02-02 08:47:10,484 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL
[2018-02-02 08:47:10,511 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2018-02-02 08:47:10,521 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized
[2018-02-02 08:47:10,524 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected.
[2018-02-02 08:47:10,525 INFO L271 PluginConnector]: Initializing CDTParser...
[2018-02-02 08:47:10,525 INFO L276 PluginConnector]: CDTParser initialized
[2018-02-02 08:47:10,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/stroeder1-alloca_true-valid-memsafety_true-termination.i
[2018-02-02 08:47:10,665 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-02-02 08:47:10,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2018-02-02 08:47:10,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-02-02 08:47:10,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-02-02 08:47:10,673 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized
[2018-02-02 08:47:10,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7206572c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10, skipping insertion in model container
[2018-02-02 08:47:10,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,686 INFO L153 Dispatcher]: Using SV-COMP mode
[2018-02-02 08:47:10,714 INFO L153 Dispatcher]: Using SV-COMP mode
[2018-02-02 08:47:10,802 INFO L450 PostProcessor]: Settings: Checked method=main
[2018-02-02 08:47:10,816 INFO L450 PostProcessor]: Settings: Checked method=main
[2018-02-02 08:47:10,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10 WrapperNode
[2018-02-02 08:47:10,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-02-02 08:47:10,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-02-02 08:47:10,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2018-02-02 08:47:10,823 INFO L276 PluginConnector]: Boogie Preprocessor initialized
[2018-02-02 08:47:10,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (1/1) ...
[2018-02-02 08:47:10,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-02-02 08:47:10,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-02-02 08:47:10,853 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2018-02-02 08:47:10,853 INFO L276 PluginConnector]: RCFGBuilder initialized
[2018-02-02 08:47:10,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (1/1) ...
No working directory specified, using /home/ultimate/work/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
[2018-02-02 08:47:10,892 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-02-02 08:47:10,892 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-02-02 08:47:10,893 INFO L136 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes
[2018-02-02 08:47:10,893 INFO L136 BoogieDeclarations]: Found implementation of procedure main
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure write~int
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure read~int
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure main
[2018-02-02 08:47:10,893 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-02-02 08:47:10,894 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-02-02 08:47:11,012 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-02-02 08:47:11,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:47:11 BoogieIcfgContainer
[2018-02-02 08:47:11,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-02-02 08:47:11,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-02-02 08:47:11,014 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2018-02-02 08:47:11,017 INFO L276 PluginConnector]: TraceAbstraction initialized
[2018-02-02 08:47:11,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 08:47:10" (1/3) ...
[2018-02-02 08:47:11,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315a6a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:47:11, skipping insertion in model container
[2018-02-02 08:47:11,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:47:10" (2/3) ...
[2018-02-02 08:47:11,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315a6a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:47:11, skipping insertion in model container
[2018-02-02 08:47:11,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:47:11" (3/3) ...
[2018-02-02 08:47:11,021 INFO L107 eAbstractionObserver]: Analyzing ICFG stroeder1-alloca_true-valid-memsafety_true-termination.i
[2018-02-02 08:47:11,029 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-02-02 08:47:11,035 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations.
[2018-02-02 08:47:11,072 INFO L322 AbstractCegarLoop]: Interprodecural is true
[2018-02-02 08:47:11,072 INFO L323 AbstractCegarLoop]: Hoare is false
[2018-02-02 08:47:11,072 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-02-02 08:47:11,072 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK
[2018-02-02 08:47:11,072 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-02-02 08:47:11,072 INFO L327 AbstractCegarLoop]: Difference is false
[2018-02-02 08:47:11,073 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-02-02 08:47:11,073 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-02-02 08:47:11,073 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure
[2018-02-02 08:47:11,086 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states.
[2018-02-02 08:47:11,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2018-02-02 08:47:11,095 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 08:47:11,095 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 08:47:11,096 INFO L371 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]===
[2018-02-02 08:47:11,099 INFO L82 PathProgramCache]: Analyzing trace with hash -443509723, now seen corresponding path program 1 times
[2018-02-02 08:47:11,100 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-02-02 08:47:11,101 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-02-02 08:47:11,136 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:11,136 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-02-02 08:47:11,137 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 08:47:11,185 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.
[2018-02-02 08:47:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 08:47:11,309 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-02-02 08:47:11,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2018-02-02 08:47:11,310 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states
[2018-02-02 08:47:11,318 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2018-02-02 08:47:11,319 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2018-02-02 08:47:11,321 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 7 states.
[2018-02-02 08:47:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 08:47:11,453 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions.
[2018-02-02 08:47:11,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2018-02-02 08:47:11,454 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14
[2018-02-02 08:47:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 08:47:11,508 INFO L225 Difference]: With dead ends: 33
[2018-02-02 08:47:11,509 INFO L226 Difference]: Without dead ends: 30
[2018-02-02 08:47:11,510 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2018-02-02 08:47:11,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2018-02-02 08:47:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25.
[2018-02-02 08:47:11,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2018-02-02 08:47:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions.
[2018-02-02 08:47:11,532 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 14
[2018-02-02 08:47:11,532 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 08:47:11,533 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions.
[2018-02-02 08:47:11,533 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2018-02-02 08:47:11,533 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions.
[2018-02-02 08:47:11,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2018-02-02 08:47:11,533 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 08:47:11,533 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 08:47:11,533 INFO L371 AbstractCegarLoop]: === Iteration 2 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]===
[2018-02-02 08:47:11,534 INFO L82 PathProgramCache]: Analyzing trace with hash -443509722, now seen corresponding path program 1 times
[2018-02-02 08:47:11,534 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-02-02 08:47:11,534 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-02-02 08:47:11,535 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:11,535 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-02-02 08:47:11,535 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 08:47:11,550 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.
[2018-02-02 08:47:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 08:47:11,633 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-02-02 08:47:11,633 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2018-02-02 08:47:11,635 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states
[2018-02-02 08:47:11,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2018-02-02 08:47:11,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2018-02-02 08:47:11,636 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states.
[2018-02-02 08:47:11,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 08:47:11,789 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions.
[2018-02-02 08:47:11,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2018-02-02 08:47:11,790 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14
[2018-02-02 08:47:11,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 08:47:11,791 INFO L225 Difference]: With dead ends: 38
[2018-02-02 08:47:11,791 INFO L226 Difference]: Without dead ends: 38
[2018-02-02 08:47:11,792 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2018-02-02 08:47:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2018-02-02 08:47:11,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28.
[2018-02-02 08:47:11,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2018-02-02 08:47:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions.
[2018-02-02 08:47:11,796 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14
[2018-02-02 08:47:11,796 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 08:47:11,796 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions.
[2018-02-02 08:47:11,796 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2018-02-02 08:47:11,797 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions.
[2018-02-02 08:47:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2018-02-02 08:47:11,797 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 08:47:11,797 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 08:47:11,798 INFO L371 AbstractCegarLoop]: === Iteration 3 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]===
[2018-02-02 08:47:11,798 INFO L82 PathProgramCache]: Analyzing trace with hash -537553629, now seen corresponding path program 1 times
[2018-02-02 08:47:11,798 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-02-02 08:47:11,798 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-02-02 08:47:11,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:11,799 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-02-02 08:47:11,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 08:47:11,814 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.
[2018-02-02 08:47:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 08:47:11,909 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-02-02 08:47:11,909 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-02-02 08:47:11,921 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-02-02 08:47:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 08:47:11,967 INFO L270 TraceCheckSpWp]: Computing forward predicates...
[2018-02-02 08:47:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 08:47:12,030 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2018-02-02 08:47:12,030 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13
[2018-02-02 08:47:12,030 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states
[2018-02-02 08:47:12,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2018-02-02 08:47:12,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156
[2018-02-02 08:47:12,031 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 13 states.
[2018-02-02 08:47:12,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 08:47:12,190 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions.
[2018-02-02 08:47:12,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2018-02-02 08:47:12,190 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19
[2018-02-02 08:47:12,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 08:47:12,191 INFO L225 Difference]: With dead ends: 50
[2018-02-02 08:47:12,191 INFO L226 Difference]: Without dead ends: 50
[2018-02-02 08:47:12,192 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306
[2018-02-02 08:47:12,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2018-02-02 08:47:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42.
[2018-02-02 08:47:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states.
[2018-02-02 08:47:12,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions.
[2018-02-02 08:47:12,196 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 19
[2018-02-02 08:47:12,196 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 08:47:12,196 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions.
[2018-02-02 08:47:12,196 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2018-02-02 08:47:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions.
[2018-02-02 08:47:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2018-02-02 08:47:12,197 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 08:47:12,197 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 08:47:12,197 INFO L371 AbstractCegarLoop]: === Iteration 4 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]===
[2018-02-02 08:47:12,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1124359643, now seen corresponding path program 1 times
[2018-02-02 08:47:12,197 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-02-02 08:47:12,198 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-02-02 08:47:12,198 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:12,198 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-02-02 08:47:12,199 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 08:47:12,210 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.
[2018-02-02 08:47:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 08:47:12,346 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-02-02 08:47:12,346 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-02-02 08:47:12,353 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-02-02 08:47:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 08:47:12,374 INFO L270 TraceCheckSpWp]: Computing forward predicates...
[2018-02-02 08:47:12,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2018-02-02 08:47:12,397 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2018-02-02 08:47:12,400 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts.
[2018-02-02 08:47:12,401 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11
[2018-02-02 08:47:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 08:47:12,549 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-02-02 08:47:12,550 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13
[2018-02-02 08:47:12,550 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states
[2018-02-02 08:47:12,550 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2018-02-02 08:47:12,550 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182
[2018-02-02 08:47:12,551 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 14 states.
[2018-02-02 08:47:12,886 WARN L146 SmtUtils]: Spent 202ms on a formula simplification. DAG size of input: 34 DAG size of output 32
[2018-02-02 08:47:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 08:47:12,992 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions.
[2018-02-02 08:47:12,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2018-02-02 08:47:12,992 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 19
[2018-02-02 08:47:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 08:47:12,993 INFO L225 Difference]: With dead ends: 54
[2018-02-02 08:47:12,993 INFO L226 Difference]: Without dead ends: 54
[2018-02-02 08:47:12,994 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342
[2018-02-02 08:47:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2018-02-02 08:47:12,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 38.
[2018-02-02 08:47:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states.
[2018-02-02 08:47:12,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions.
[2018-02-02 08:47:12,998 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19
[2018-02-02 08:47:12,998 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 08:47:12,998 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions.
[2018-02-02 08:47:12,998 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2018-02-02 08:47:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions.
[2018-02-02 08:47:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2018-02-02 08:47:12,999 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 08:47:12,999 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 08:47:12,999 INFO L371 AbstractCegarLoop]: === Iteration 5 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]===
[2018-02-02 08:47:12,999 INFO L82 PathProgramCache]: Analyzing trace with hash 950757514, now seen corresponding path program 1 times
[2018-02-02 08:47:12,999 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-02-02 08:47:13,000 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-02-02 08:47:13,000 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:13,001 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-02-02 08:47:13,001 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 08:47:13,009 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.
[2018-02-02 08:47:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 08:47:13,035 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-02-02 08:47:13,036 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2018-02-02 08:47:13,036 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states
[2018-02-02 08:47:13,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2018-02-02 08:47:13,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2018-02-02 08:47:13,037 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 5 states.
[2018-02-02 08:47:13,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 08:47:13,058 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions.
[2018-02-02 08:47:13,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2018-02-02 08:47:13,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20
[2018-02-02 08:47:13,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 08:47:13,064 INFO L225 Difference]: With dead ends: 49
[2018-02-02 08:47:13,064 INFO L226 Difference]: Without dead ends: 43
[2018-02-02 08:47:13,064 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2018-02-02 08:47:13,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2018-02-02 08:47:13,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40.
[2018-02-02 08:47:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2018-02-02 08:47:13,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions.
[2018-02-02 08:47:13,068 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 20
[2018-02-02 08:47:13,068 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 08:47:13,068 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions.
[2018-02-02 08:47:13,068 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2018-02-02 08:47:13,069 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions.
[2018-02-02 08:47:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2018-02-02 08:47:13,069 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 08:47:13,069 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 08:47:13,069 INFO L371 AbstractCegarLoop]: === Iteration 6 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]===
[2018-02-02 08:47:13,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1524168647, now seen corresponding path program 1 times
[2018-02-02 08:47:13,069 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-02-02 08:47:13,070 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-02-02 08:47:13,070 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:13,070 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-02-02 08:47:13,070 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-02-02 08:47:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 08:47:13,083 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.
[2018-02-02 08:47:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2018-02-02 08:47:13,117 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-02-02 08:47:13,118 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-02-02 08:47:13,118 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states
[2018-02-02 08:47:13,118 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2018-02-02 08:47:13,118 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2018-02-02 08:47:13,118 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 4 states.
[2018-02-02 08:47:13,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 08:47:13,137 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions.
[2018-02-02 08:47:13,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2018-02-02 08:47:13,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25
[2018-02-02 08:47:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 08:47:13,138 INFO L225 Difference]: With dead ends: 39
[2018-02-02 08:47:13,138 INFO L226 Difference]: Without dead ends: 0
[2018-02-02 08:47:13,138 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2018-02-02 08:47:13,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2018-02-02 08:47:13,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2018-02-02 08:47:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2018-02-02 08:47:13,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2018-02-02 08:47:13,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25
[2018-02-02 08:47:13,139 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 08:47:13,139 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2018-02-02 08:47:13,139 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2018-02-02 08:47:13,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2018-02-02 08:47:13,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2018-02-02 08:47:13,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 08:47:13 BoogieIcfgContainer
[2018-02-02 08:47:13,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2018-02-02 08:47:13,143 INFO L168 Benchmark]: Toolchain (without parser) took 2477.15 ms. Allocated memory was 397.9 MB in the beginning and 617.6 MB in the end (delta: 219.7 MB). Free memory was 354.6 MB in the beginning and 544.6 MB in the end (delta: -190.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 5.3 GB.
[2018-02-02 08:47:13,144 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 397.9 MB. Free memory is still 359.9 MB. There was no memory consumed. Max. memory is 5.3 GB.
[2018-02-02 08:47:13,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.04 ms. Allocated memory is still 397.9 MB. Free memory was 354.6 MB in the beginning and 344.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB.
[2018-02-02 08:47:13,144 INFO L168 Benchmark]: Boogie Preprocessor took 30.03 ms. Allocated memory is still 397.9 MB. Free memory was 344.1 MB in the beginning and 341.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB.
[2018-02-02 08:47:13,144 INFO L168 Benchmark]: RCFGBuilder took 160.60 ms. Allocated memory is still 397.9 MB. Free memory was 341.4 MB in the beginning and 326.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 5.3 GB.
[2018-02-02 08:47:13,144 INFO L168 Benchmark]: TraceAbstraction took 2128.13 ms. Allocated memory was 397.9 MB in the beginning and 617.6 MB in the end (delta: 219.7 MB). Free memory was 326.9 MB in the beginning and 544.6 MB in the end (delta: -217.7 MB). Peak memory consumption was 1.9 MB. Max. memory is 5.3 GB.
[2018-02-02 08:47:13,146 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.13 ms. Allocated memory is still 397.9 MB. Free memory is still 359.9 MB. There was no memory consumed. Max. memory is 5.3 GB.
* CACSL2BoogieTranslator took 155.04 ms. Allocated memory is still 397.9 MB. Free memory was 354.6 MB in the beginning and 344.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB.
* Boogie Preprocessor took 30.03 ms. Allocated memory is still 397.9 MB. Free memory was 344.1 MB in the beginning and 341.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB.
* RCFGBuilder took 160.60 ms. Allocated memory is still 397.9 MB. Free memory was 341.4 MB in the beginning and 326.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 5.3 GB.
* TraceAbstraction took 2128.13 ms. Allocated memory was 397.9 MB in the beginning and 617.6 MB in the end (delta: 219.7 MB). Free memory was 326.9 MB in the beginning and 544.6 MB in the end (delta: -217.7 MB). Peak memory consumption was 1.9 MB. Max. memory is 5.3 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 552]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- AllSpecificationsHoldResult: All specifications hold
3 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 29 locations, 3 error locations. SAFE Result, 2.0s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 133 SDtfs, 201 SDslu, 432 SDs, 0 SdLazy, 321 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 141 ConstructedInterpolants, 9 QuantifiedInterpolants, 13575 SizeOfPredicates, 12 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 10/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_08-47-13-152.csv
Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_08-47-13-152.csv
Received shutdown request...