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_z3.epf -i ../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_true-valid-memsafety.i
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This is Ultimate 0.1.23-26d9e06-m
[2018-02-02 11:00:18,085 INFO L170 SettingsManager]: Resetting all preferences to default values...
[2018-02-02 11:00:18,087 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values
[2018-02-02 11:00:18,096 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-02-02 11:00:18,097 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-02-02 11:00:18,098 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-02-02 11:00:18,098 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-02-02 11:00:18,100 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values
[2018-02-02 11:00:18,102 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-02-02 11:00:18,102 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-02-02 11:00:18,103 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-02-02 11:00:18,103 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-02-02 11:00:18,104 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-02-02 11:00:18,105 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-02-02 11:00:18,106 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-02-02 11:00:18,108 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-02-02 11:00:18,109 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values
[2018-02-02 11:00:18,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-02-02 11:00:18,111 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-02-02 11:00:18,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-02-02 11:00:18,114 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-02-02 11:00:18,114 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-02-02 11:00:18,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-02-02 11:00:18,115 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-02-02 11:00:18,116 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values
[2018-02-02 11:00:18,117 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-02-02 11:00:18,117 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values
[2018-02-02 11:00:18,117 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring...
[2018-02-02 11:00:18,118 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-02-02 11:00:18,118 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values
[2018-02-02 11:00:18,118 INFO L181 SettingsManager]: Finished resetting all preferences to default values...
[2018-02-02 11:00:18,118 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf
[2018-02-02 11:00:18,128 INFO L110 SettingsManager]: Loading preferences was successful
[2018-02-02 11:00:18,128 INFO L112 SettingsManager]: Preferences different from defaults after loading the file:
[2018-02-02 11:00:18,129 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-02-02 11:00:18,130 INFO L133 SettingsManager]: * Create parallel compositions if possible=false
[2018-02-02 11:00:18,130 INFO L133 SettingsManager]: * Use SBE=true
[2018-02-02 11:00:18,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-02-02 11:00:18,130 INFO L133 SettingsManager]: * sizeof long=4
[2018-02-02 11:00:18,130 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2018-02-02 11:00:18,130 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true
[2018-02-02 11:00:18,130 INFO L133 SettingsManager]: * sizeof POINTER=4
[2018-02-02 11:00:18,131 INFO L133 SettingsManager]: * Check division by zero=IGNORE
[2018-02-02 11:00:18,131 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2018-02-02 11:00:18,131 INFO L133 SettingsManager]: * Bitprecise bitfields=true
[2018-02-02 11:00:18,131 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2018-02-02 11:00:18,131 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-02-02 11:00:18,132 INFO L133 SettingsManager]: * sizeof long double=12
[2018-02-02 11:00:18,132 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-02-02 11:00:18,132 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements
[2018-02-02 11:00:18,132 INFO L133 SettingsManager]: * To the following directory=./dump/
[2018-02-02 11:00:18,132 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode
[2018-02-02 11:00:18,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-02-02 11:00:18,132 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-02-02 11:00:18,133 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2018-02-02 11:00:18,133 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode
[2018-02-02 11:00:18,133 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-02-02 11:00:18,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2018-02-02 11:00:18,168 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized
[2018-02-02 11:00:18,171 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected.
[2018-02-02 11:00:18,172 INFO L271 PluginConnector]: Initializing CDTParser...
[2018-02-02 11:00:18,172 INFO L276 PluginConnector]: CDTParser initialized
[2018-02-02 11:00:18,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_true-valid-memsafety.i
[2018-02-02 11:00:18,300 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-02-02 11:00:18,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2018-02-02 11:00:18,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-02-02 11:00:18,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-02-02 11:00:18,316 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized
[2018-02-02 11:00:18,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27dbe5ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18, skipping insertion in model container
[2018-02-02 11:00:18,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,328 INFO L153 Dispatcher]: Using SV-COMP mode
[2018-02-02 11:00:18,355 INFO L153 Dispatcher]: Using SV-COMP mode
[2018-02-02 11:00:18,440 INFO L450 PostProcessor]: Settings: Checked method=main
[2018-02-02 11:00:18,453 INFO L450 PostProcessor]: Settings: Checked method=main
[2018-02-02 11:00:18,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18 WrapperNode
[2018-02-02 11:00:18,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-02-02 11:00:18,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-02-02 11:00:18,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2018-02-02 11:00:18,460 INFO L276 PluginConnector]: Boogie Preprocessor initialized
[2018-02-02 11:00:18,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (1/1) ...
[2018-02-02 11:00:18,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-02-02 11:00:18,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-02-02 11:00:18,484 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2018-02-02 11:00:18,484 INFO L276 PluginConnector]: RCFGBuilder initialized
[2018-02-02 11:00:18,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (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 11:00:18,518 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-02-02 11:00:18,612 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-02-02 11:00:18,613 INFO L136 BoogieDeclarations]: Found implementation of procedure foo
[2018-02-02 11:00:18,613 INFO L136 BoogieDeclarations]: Found implementation of procedure main
[2018-02-02 11:00:18,613 INFO L128 BoogieDeclarations]: Found specification of procedure write~int
[2018-02-02 11:00:18,613 INFO L128 BoogieDeclarations]: Found specification of procedure read~int
[2018-02-02 11:00:18,613 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free
[2018-02-02 11:00:18,613 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2018-02-02 11:00:18,613 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc
[2018-02-02 11:00:18,613 INFO L128 BoogieDeclarations]: Found specification of procedure malloc
[2018-02-02 11:00:18,613 INFO L128 BoogieDeclarations]: Found specification of procedure free
[2018-02-02 11:00:18,613 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2018-02-02 11:00:18,614 INFO L128 BoogieDeclarations]: Found specification of procedure foo
[2018-02-02 11:00:18,614 INFO L128 BoogieDeclarations]: Found specification of procedure main
[2018-02-02 11:00:18,614 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-02-02 11:00:18,614 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-02-02 11:00:18,776 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-02-02 11:00:18,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:00:18 BoogieIcfgContainer
[2018-02-02 11:00:18,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-02-02 11:00:18,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-02-02 11:00:18,777 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2018-02-02 11:00:18,779 INFO L276 PluginConnector]: TraceAbstraction initialized
[2018-02-02 11:00:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 11:00:18" (1/3) ...
[2018-02-02 11:00:18,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71838d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:00:18, skipping insertion in model container
[2018-02-02 11:00:18,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:18" (2/3) ...
[2018-02-02 11:00:18,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71838d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:00:18, skipping insertion in model container
[2018-02-02 11:00:18,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:00:18" (3/3) ...
[2018-02-02 11:00:18,782 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_true-valid-memsafety.i
[2018-02-02 11:00:18,787 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2018-02-02 11:00:18,793 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations.
[2018-02-02 11:00:18,823 INFO L322 AbstractCegarLoop]: Interprodecural is true
[2018-02-02 11:00:18,823 INFO L323 AbstractCegarLoop]: Hoare is false
[2018-02-02 11:00:18,823 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2018-02-02 11:00:18,823 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL
[2018-02-02 11:00:18,823 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-02-02 11:00:18,823 INFO L327 AbstractCegarLoop]: Difference is false
[2018-02-02 11:00:18,824 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-02-02 11:00:18,824 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-02-02 11:00:18,824 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure
[2018-02-02 11:00:18,832 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states.
[2018-02-02 11:00:18,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2018-02-02 11:00:18,841 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 11:00:18,842 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 11:00:18,842 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]===
[2018-02-02 11:00:18,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1159416495, now seen corresponding path program 1 times
No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-02-02 11:00:18,856 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy
[2018-02-02 11:00:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:18,944 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 11:00:18,963 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-02-02 11:00:18,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-02-02 11:00:18,964 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state
[2018-02-02 11:00:18,964 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 11:00:18,965 INFO L182 omatonBuilderFactory]: Interpolants [67#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|)), 62#true, 63#false]
[2018-02-02 11:00:18,965 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 11:00:18,965 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-02-02 11:00:18,973 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-02-02 11:00:18,973 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-02-02 11:00:18,975 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states.
[2018-02-02 11:00:19,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 11:00:19,084 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions.
[2018-02-02 11:00:19,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2018-02-02 11:00:19,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12
[2018-02-02 11:00:19,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 11:00:19,096 INFO L225 Difference]: With dead ends: 59
[2018-02-02 11:00:19,096 INFO L226 Difference]: Without dead ends: 56
[2018-02-02 11:00:19,098 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-02-02 11:00:19,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2018-02-02 11:00:19,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2018-02-02 11:00:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states.
[2018-02-02 11:00:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions.
[2018-02-02 11:00:19,138 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 12
[2018-02-02 11:00:19,138 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 11:00:19,139 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions.
[2018-02-02 11:00:19,139 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-02-02 11:00:19,139 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions.
[2018-02-02 11:00:19,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2018-02-02 11:00:19,139 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 11:00:19,140 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 11:00:19,140 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]===
[2018-02-02 11:00:19,140 INFO L82 PathProgramCache]: Analyzing trace with hash 91943959, now seen corresponding path program 1 times
No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-02-02 11:00:19,144 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy
[2018-02-02 11:00:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:19,197 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 11:00:19,224 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-02-02 11:00:19,224 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2018-02-02 11:00:19,224 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state
[2018-02-02 11:00:19,224 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 11:00:19,224 INFO L182 omatonBuilderFactory]: Interpolants [183#true, 184#false, 188#(= 1 (select |#valid| |main_#t~malloc7.base|)), 189#(= 1 (select |#valid| |main_#t~post8.base|)), 190#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|))]
[2018-02-02 11:00:19,225 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 11:00:19,226 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states
[2018-02-02 11:00:19,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2018-02-02 11:00:19,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2018-02-02 11:00:19,227 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 5 states.
[2018-02-02 11:00:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 11:00:19,384 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions.
[2018-02-02 11:00:19,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2018-02-02 11:00:19,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14
[2018-02-02 11:00:19,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 11:00:19,386 INFO L225 Difference]: With dead ends: 55
[2018-02-02 11:00:19,386 INFO L226 Difference]: Without dead ends: 55
[2018-02-02 11:00:19,387 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 11:00:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2018-02-02 11:00:19,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2018-02-02 11:00:19,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states.
[2018-02-02 11:00:19,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions.
[2018-02-02 11:00:19,392 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 14
[2018-02-02 11:00:19,392 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 11:00:19,392 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions.
[2018-02-02 11:00:19,392 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2018-02-02 11:00:19,393 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions.
[2018-02-02 11:00:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2018-02-02 11:00:19,393 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 11:00:19,393 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 11:00:19,393 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]===
[2018-02-02 11:00:19,393 INFO L82 PathProgramCache]: Analyzing trace with hash 91943960, now seen corresponding path program 1 times
No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-02-02 11:00:19,397 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy
[2018-02-02 11:00:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:19,491 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 11:00:19,506 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-02-02 11:00:19,506 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2018-02-02 11:00:19,506 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state
[2018-02-02 11:00:19,507 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 11:00:19,507 INFO L182 omatonBuilderFactory]: Interpolants [304#false, 308#(= ~n 1), 309#(and (= 0 |main_#t~malloc7.offset|) (= 4 (select |#length| |main_#t~malloc7.base|))), 310#(and (<= 0 |main_#t~post8.offset|) (<= (+ |main_#t~post8.offset| 4) (select |#length| |main_#t~post8.base|))), 311#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|)), 303#true]
[2018-02-02 11:00:19,507 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 11:00:19,507 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states
[2018-02-02 11:00:19,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2018-02-02 11:00:19,508 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2018-02-02 11:00:19,508 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 6 states.
[2018-02-02 11:00:19,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 11:00:19,707 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions.
[2018-02-02 11:00:19,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2018-02-02 11:00:19,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14
[2018-02-02 11:00:19,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 11:00:19,708 INFO L225 Difference]: With dead ends: 103
[2018-02-02 11:00:19,708 INFO L226 Difference]: Without dead ends: 103
[2018-02-02 11:00:19,709 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2018-02-02 11:00:19,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2018-02-02 11:00:19,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 63.
[2018-02-02 11:00:19,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states.
[2018-02-02 11:00:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions.
[2018-02-02 11:00:19,715 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 14
[2018-02-02 11:00:19,715 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 11:00:19,715 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions.
[2018-02-02 11:00:19,715 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2018-02-02 11:00:19,715 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions.
[2018-02-02 11:00:19,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2018-02-02 11:00:19,716 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 11:00:19,716 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-02-02 11:00:19,716 INFO L371 AbstractCegarLoop]: === Iteration 4 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]===
[2018-02-02 11:00:19,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1380362355, now seen corresponding path program 1 times
No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-02-02 11:00:19,722 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy
[2018-02-02 11:00:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 11:00:19,804 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2018-02-02 11:00:19,804 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2018-02-02 11:00:19,805 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state
[2018-02-02 11:00:19,805 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 11:00:19,805 INFO L182 omatonBuilderFactory]: Interpolants [484#true, 485#false, 489#(= ~n 1), 490#(= ~n 2), 491#(and (= 0 |main_#t~malloc7.offset|) (= 8 (select |#length| |main_#t~malloc7.base|))), 492#(and (<= 0 |main_#t~post8.offset|) (<= (+ |main_#t~post8.offset| 4) (select |#length| |main_#t~post8.base|))), 493#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|))]
[2018-02-02 11:00:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-02-02 11:00:19,805 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states
[2018-02-02 11:00:19,806 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2018-02-02 11:00:19,806 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2018-02-02 11:00:19,806 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 7 states.
[2018-02-02 11:00:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 11:00:20,171 INFO L93 Difference]: Finished difference Result 151 states and 160 transitions.
[2018-02-02 11:00:20,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2018-02-02 11:00:20,172 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17
[2018-02-02 11:00:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 11:00:20,173 INFO L225 Difference]: With dead ends: 151
[2018-02-02 11:00:20,173 INFO L226 Difference]: Without dead ends: 151
[2018-02-02 11:00:20,173 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2018-02-02 11:00:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states.
[2018-02-02 11:00:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 66.
[2018-02-02 11:00:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2018-02-02 11:00:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions.
[2018-02-02 11:00:20,178 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 17
[2018-02-02 11:00:20,178 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 11:00:20,178 INFO L432 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions.
[2018-02-02 11:00:20,178 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2018-02-02 11:00:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions.
[2018-02-02 11:00:20,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2018-02-02 11:00:20,178 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 11:00:20,178 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 11:00:20,179 INFO L371 AbstractCegarLoop]: === Iteration 5 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]===
[2018-02-02 11:00:20,179 INFO L82 PathProgramCache]: Analyzing trace with hash -255124515, now seen corresponding path program 1 times
No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-02-02 11:00:20,181 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy
[2018-02-02 11:00:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:20,195 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier
[2018-02-02 11:00:20,198 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)]
[2018-02-02 11:00:20,199 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)]
[2018-02-02 11:00:20,200 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)]
[2018-02-02 11:00:20,200 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)]
[2018-02-02 11:00:20,271 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true
[2018-02-02 11:00:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:20,343 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 11:00:20,360 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-02-02 11:00:20,360 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2018-02-02 11:00:20,360 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state
[2018-02-02 11:00:20,360 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 11:00:20,360 INFO L182 omatonBuilderFactory]: Interpolants [721#true, 722#false, 726#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 727#(= 1 (select |#valid| |main_#t~malloc6.base|)), 728#(= 1 (select |#valid| ~a.base)), 729#(or (= (select |#valid| ~a.base) 1) (not (= (select |#valid| |main_#t~malloc7.base|) 1))), 730#(or (= (select |#valid| ~a.base) 1) (not (= (select |#valid| |main_#t~post8.base|) 1))), 731#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|))]
[2018-02-02 11:00:20,360 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 11:00:20,361 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states
[2018-02-02 11:00:20,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2018-02-02 11:00:20,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56
[2018-02-02 11:00:20,361 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 8 states.
[2018-02-02 11:00:20,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-02-02 11:00:20,518 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions.
[2018-02-02 11:00:20,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2018-02-02 11:00:20,519 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20
[2018-02-02 11:00:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-02-02 11:00:20,520 INFO L225 Difference]: With dead ends: 64
[2018-02-02 11:00:20,520 INFO L226 Difference]: Without dead ends: 64
[2018-02-02 11:00:20,520 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=61, Unknown=3, NotChecked=16, Total=110
[2018-02-02 11:00:20,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2018-02-02 11:00:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63.
[2018-02-02 11:00:20,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states.
[2018-02-02 11:00:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions.
[2018-02-02 11:00:20,527 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 20
[2018-02-02 11:00:20,527 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-02-02 11:00:20,527 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions.
[2018-02-02 11:00:20,527 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2018-02-02 11:00:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions.
[2018-02-02 11:00:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2018-02-02 11:00:20,528 INFO L343 BasicCegarLoop]: Found error trace
[2018-02-02 11:00:20,528 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 11:00:20,528 INFO L371 AbstractCegarLoop]: === Iteration 6 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]===
[2018-02-02 11:00:20,528 INFO L82 PathProgramCache]: Analyzing trace with hash -255124514, now seen corresponding path program 1 times
No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-02-02 11:00:20,531 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy
[2018-02-02 11:00:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-02-02 11:00:20,557 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier
WARNING: array quantifier
Unsupported proof rule: (let ((a!1 (= (+ 0 0 (* (- 1) (select |#length_11| |main_#t~malloc6.base_9|)))
(* (- 1) (select |#length_11| |main_#t~malloc6.base_9|)))))
(rewrite a!1))
[2018-02-02 11:00:20,558 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127 column 387: theory not supported by interpolation or bad proof
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64)
at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260)
at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.<init>(NestedInterpolantsBuilder.java:164)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:294)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:106)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:68)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:115)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
[2018-02-02 11:00:20,561 INFO L168 Benchmark]: Toolchain (without parser) took 2260.87 ms. Allocated memory was 404.8 MB in the beginning and 608.7 MB in the end (delta: 203.9 MB). Free memory was 361.6 MB in the beginning and 492.5 MB in the end (delta: -130.8 MB). Peak memory consumption was 73.1 MB. Max. memory is 5.3 GB.
[2018-02-02 11:00:20,562 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB.
[2018-02-02 11:00:20,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.82 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 350.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB.
[2018-02-02 11:00:20,563 INFO L168 Benchmark]: Boogie Preprocessor took 24.28 ms. Allocated memory is still 404.8 MB. Free memory was 350.9 MB in the beginning and 349.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB.
[2018-02-02 11:00:20,563 INFO L168 Benchmark]: RCFGBuilder took 292.76 ms. Allocated memory is still 404.8 MB. Free memory was 349.6 MB in the beginning and 328.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 5.3 GB.
[2018-02-02 11:00:20,563 INFO L168 Benchmark]: TraceAbstraction took 1782.98 ms. Allocated memory was 404.8 MB in the beginning and 608.7 MB in the end (delta: 203.9 MB). Free memory was 328.9 MB in the beginning and 492.5 MB in the end (delta: -163.5 MB). Peak memory consumption was 40.4 MB. Max. memory is 5.3 GB.
[2018-02-02 11:00:20,566 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.16 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB.
* CACSL2BoogieTranslator took 147.82 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 350.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB.
* Boogie Preprocessor took 24.28 ms. Allocated memory is still 404.8 MB. Free memory was 350.9 MB in the beginning and 349.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB.
* RCFGBuilder took 292.76 ms. Allocated memory is still 404.8 MB. Free memory was 349.6 MB in the beginning and 328.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 5.3 GB.
* TraceAbstraction took 1782.98 ms. Allocated memory was 404.8 MB in the beginning and 608.7 MB in the end (delta: 203.9 MB). Free memory was 328.9 MB in the beginning and 492.5 MB in the end (delta: -163.5 MB). Peak memory consumption was 40.4 MB. Max. memory is 5.3 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: line 127 column 387: theory not supported by interpolation or bad proof
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 127 column 387: theory not supported by interpolation or bad proof: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_11-00-20-574.csv
Received shutdown request...