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/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 11:00:46,362 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 11:00:46,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 11:00:46,376 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 11:00:46,377 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 11:00:46,377 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 11:00:46,378 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 11:00:46,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 11:00:46,381 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 11:00:46,382 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 11:00:46,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 11:00:46,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 11:00:46,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 11:00:46,385 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 11:00:46,386 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 11:00:46,387 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 11:00:46,389 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 11:00:46,391 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 11:00:46,392 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 11:00:46,393 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 11:00:46,395 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 11:00:46,399 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 11:00:46,399 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 11:00:46,399 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 11:00:46,409 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 11:00:46,409 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 11:00:46,410 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 11:00:46,410 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 11:00:46,410 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 11:00:46,410 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 11:00:46,410 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 11:00:46,410 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 11:00:46,410 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 11:00:46,410 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 11:00:46,411 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 11:00:46,411 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 11:00:46,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 11:00:46,412 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 11:00:46,412 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-02 11:00:46,412 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-02 11:00:46,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 11:00:46,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 11:00:46,447 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 11:00:46,449 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 11:00:46,450 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 11:00:46,451 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 11:00:46,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c [2018-02-02 11:00:46,530 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 11:00:46,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 11:00:46,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 11:00:46,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 11:00:46,538 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 11:00:46,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397a253e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46, skipping insertion in model container [2018-02-02 11:00:46,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,558 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 11:00:46,578 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 11:00:46,690 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 11:00:46,703 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 11:00:46,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46 WrapperNode [2018-02-02 11:00:46,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 11:00:46,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 11:00:46,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 11:00:46,710 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 11:00:46,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (1/1) ... [2018-02-02 11:00:46,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 11:00:46,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 11:00:46,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 11:00:46,733 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 11:00:46,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (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 11:00:46,776 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 11:00:46,776 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 11:00:46,776 INFO L136 BoogieDeclarations]: Found implementation of procedure bar [2018-02-02 11:00:46,776 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-02 11:00:46,776 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 11:00:46,776 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 11:00:46,776 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 11:00:46,776 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 11:00:46,777 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 11:00:46,777 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 11:00:46,777 INFO L128 BoogieDeclarations]: Found specification of procedure bar [2018-02-02 11:00:46,777 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-02 11:00:46,777 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 11:00:46,777 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 11:00:46,777 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 11:00:46,938 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 11:00:46,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:00:46 BoogieIcfgContainer [2018-02-02 11:00:46,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 11:00:46,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 11:00:46,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 11:00:46,941 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 11:00:46,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 11:00:46" (1/3) ... [2018-02-02 11:00:46,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a530139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:00:46, skipping insertion in model container [2018-02-02 11:00:46,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:00:46" (2/3) ... [2018-02-02 11:00:46,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a530139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:00:46, skipping insertion in model container [2018-02-02 11:00:46,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:00:46" (3/3) ... [2018-02-02 11:00:46,943 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-write.c [2018-02-02 11:00:46,948 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 11:00:46,952 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-02-02 11:00:46,982 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 11:00:46,982 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 11:00:46,982 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-02 11:00:46,982 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 11:00:46,982 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 11:00:46,983 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 11:00:46,983 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 11:00:46,983 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 11:00:46,984 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 11:00:46,995 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-02-02 11:00:47,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 11:00:47,003 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:00:47,003 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:00:47,004 INFO L371 AbstractCegarLoop]: === Iteration 1 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 11:00:47,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1613294992, 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 11:00:47,026 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:00:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:00:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:00:47,092 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 11:00:47,110 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:00:47,111 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 11:00:47,111 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:00:47,112 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 11:00:47,112 INFO L182 omatonBuilderFactory]: Interpolants [71#true, 72#false, 76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:00:47,112 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 11:00:47,112 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 11:00:47,120 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 11:00:47,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 11:00:47,121 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2018-02-02 11:00:47,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:00:47,257 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-02-02 11:00:47,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 11:00:47,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-02-02 11:00:47,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:00:47,266 INFO L225 Difference]: With dead ends: 68 [2018-02-02 11:00:47,266 INFO L226 Difference]: Without dead ends: 65 [2018-02-02 11:00:47,267 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 11:00:47,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-02-02 11:00:47,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-02-02 11:00:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-02-02 11:00:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-02-02 11:00:47,302 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-02-02 11:00:47,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:00:47,303 INFO L432 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-02-02 11:00:47,304 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 11:00:47,304 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-02-02 11:00:47,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 11:00:47,304 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:00:47,304 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:00:47,305 INFO L371 AbstractCegarLoop]: === Iteration 2 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 11:00:47,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1969953325, 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 11:00:47,309 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:00:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:00:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:00:47,349 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 11:00:47,375 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:00:47,376 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 11:00:47,376 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:00:47,376 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 11:00:47,376 INFO L182 omatonBuilderFactory]: Interpolants [210#true, 211#false, 215#(< main_~i~2 100), 216#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:00:47,377 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 11:00:47,378 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 11:00:47,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 11:00:47,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 11:00:47,378 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 4 states. [2018-02-02 11:00:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:00:47,500 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2018-02-02 11:00:47,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 11:00:47,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-02 11:00:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:00:47,501 INFO L225 Difference]: With dead ends: 64 [2018-02-02 11:00:47,502 INFO L226 Difference]: Without dead ends: 64 [2018-02-02 11:00:47,502 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 11:00:47,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-02-02 11:00:47,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-02-02 11:00:47,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-02-02 11:00:47,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-02-02 11:00:47,508 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-02-02 11:00:47,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:00:47,509 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-02-02 11:00:47,509 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 11:00:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-02-02 11:00:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 11:00:47,509 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:00:47,509 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:00:47,510 INFO L371 AbstractCegarLoop]: === Iteration 3 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 11:00:47,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061679, 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 11:00:47,514 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:00:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:00:47,556 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier [2018-02-02 11:00:47,560 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,561 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,562 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,562 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,588 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 11:00:47,596 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,597 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,597 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,597 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,598 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,598 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,727 WARN L146 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 37 DAG size of output 33 [2018-02-02 11:00:47,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 24 treesize of output 26 [2018-02-02 11:00:47,734 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,736 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 22 treesize of output 21 [2018-02-02 11:00:47,737 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 33 treesize of output 35 [2018-02-02 11:00:47,742 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 35 treesize of output 37 [2018-02-02 11:00:47,749 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,752 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 33 treesize of output 32 [2018-02-02 11:00:47,752 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,755 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 31 treesize of output 30 [2018-02-02 11:00:47,756 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,801 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 19 treesize of output 18 [2018-02-02 11:00:47,801 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 21 treesize of output 23 [2018-02-02 11:00:47,823 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,833 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:121, output treesize:15 [2018-02-02 11:00:47,855 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,855 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,856 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,856 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,856 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,857 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:00:47,968 WARN L146 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 37 DAG size of output 33 [2018-02-02 11:00:47,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 30 treesize of output 32 [2018-02-02 11:00:47,974 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,977 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 33 treesize of output 32 [2018-02-02 11:00:47,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,982 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 31 treesize of output 30 [2018-02-02 11:00:47,982 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:47,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 33 treesize of output 35 [2018-02-02 11:00:47,991 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:48,002 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 28 treesize of output 27 [2018-02-02 11:00:48,003 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:48,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 35 treesize of output 37 [2018-02-02 11:00:48,008 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:48,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 29 treesize of output 31 [2018-02-02 11:00:48,058 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:48,062 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 27 treesize of output 26 [2018-02-02 11:00:48,063 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:48,084 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 24 treesize of output 23 [2018-02-02 11:00:48,085 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-02 11:00:48,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-02 11:00:48,102 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 3 variables, input treesize:121, output treesize:15 [2018-02-02 11:00:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:00:48,140 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 11:00:48,142 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:00:48,142 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 11:00:48,142 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:00:48,143 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 11:00:48,143 INFO L182 omatonBuilderFactory]: Interpolants [352#(forall ((%1 Int)) (= (select (store |#valid| %1 1) |foo_#in~b.base|) 1)), 353#(forall ((%1 Int)) (= 1 (select (store |#valid| %1 1) foo_~b.base))), 354#(= 1 (select |#valid| foo_~b.base)), 355#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 345#true, 346#false, 350#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 351#(= 1 (select |#valid| |main_~#b~0.base|))] [2018-02-02 11:00:48,143 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 11:00:48,143 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 11:00:48,143 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 11:00:48,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56 [2018-02-02 11:00:48,144 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 8 states. [2018-02-02 11:00:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:00:48,391 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2018-02-02 11:00:48,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 11:00:48,392 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-02-02 11:00:48,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:00:48,392 INFO L225 Difference]: With dead ends: 62 [2018-02-02 11:00:48,392 INFO L226 Difference]: Without dead ends: 62 [2018-02-02 11:00:48,393 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=4, NotChecked=18, Total=132 [2018-02-02 11:00:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-02-02 11:00:48,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-02-02 11:00:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-02-02 11:00:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2018-02-02 11:00:48,397 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 17 [2018-02-02 11:00:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:00:48,398 INFO L432 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2018-02-02 11:00:48,398 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 11:00:48,398 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2018-02-02 11:00:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 11:00:48,398 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:00:48,398 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:00:48,398 INFO L371 AbstractCegarLoop]: === Iteration 4 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 11:00:48,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061678, 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 11:00:48,401 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:00:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:00:48,426 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier Unsupported proof rule: (let ((a!1 (= (+ 0 0 (* (- 1) (select |#length_12| |main_~#b~0.base_6|))) (* (- 1) (select |#length_12| |main_~#b~0.base_6|))))) (rewrite a!1)) [2018-02-02 11:00:48,426 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 91 column 366: 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.(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.(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.(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.(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 11:00:48,429 INFO L168 Benchmark]: Toolchain (without parser) took 1898.70 ms. Allocated memory was 405.8 MB in the beginning and 425.2 MB in the end (delta: 19.4 MB). Free memory was 363.9 MB in the beginning and 286.8 MB in the end (delta: 77.2 MB). Peak memory consumption was 96.6 MB. Max. memory is 5.3 GB. [2018-02-02 11:00:48,430 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 405.8 MB. Free memory is still 369.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 11:00:48,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.22 ms. Allocated memory is still 405.8 MB. Free memory was 363.9 MB in the beginning and 356.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-02 11:00:48,431 INFO L168 Benchmark]: Boogie Preprocessor took 22.61 ms. Allocated memory is still 405.8 MB. Free memory was 356.0 MB in the beginning and 353.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 11:00:48,432 INFO L168 Benchmark]: RCFGBuilder took 206.48 ms. Allocated memory is still 405.8 MB. Free memory was 353.4 MB in the beginning and 332.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 5.3 GB. [2018-02-02 11:00:48,432 INFO L168 Benchmark]: TraceAbstraction took 1489.39 ms. Allocated memory was 405.8 MB in the beginning and 425.2 MB in the end (delta: 19.4 MB). Free memory was 332.5 MB in the beginning and 286.8 MB in the end (delta: 45.7 MB). Peak memory consumption was 65.1 MB. Max. memory is 5.3 GB. [2018-02-02 11:00:48,500 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 405.8 MB. Free memory is still 369.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 177.22 ms. Allocated memory is still 405.8 MB. Free memory was 363.9 MB in the beginning and 356.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.61 ms. Allocated memory is still 405.8 MB. Free memory was 356.0 MB in the beginning and 353.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 206.48 ms. Allocated memory is still 405.8 MB. Free memory was 353.4 MB in the beginning and 332.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1489.39 ms. Allocated memory was 405.8 MB in the beginning and 425.2 MB in the end (delta: 19.4 MB). Free memory was 332.5 MB in the beginning and 286.8 MB in the end (delta: 45.7 MB). Peak memory consumption was 65.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 91 column 366: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 91 column 366: 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/ArraysOfVariableLength2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_11-00-48-508.csv Received shutdown request...