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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:39:54,746 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:39:54,748 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:39:54,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:39:54,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:39:54,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:39:54,761 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:39:54,763 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:39:54,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:39:54,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:39:54,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:39:54,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:39:54,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:39:54,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:39:54,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:39:54,771 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:39:54,774 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:39:54,775 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:39:54,776 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:39:54,777 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:39:54,779 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 20:39:54,779 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 20:39:54,779 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 20:39:54,780 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 20:39:54,781 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 20:39:54,782 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 20:39:54,782 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 20:39:54,783 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 20:39:54,783 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 20:39:54,783 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:39:54,784 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:39:54,784 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 20:39:54,796 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:39:54,796 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:39:54,797 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:39:54,797 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:39:54,797 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:39:54,798 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:39:54,798 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:39:54,798 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:39:54,798 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:39:54,798 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:39:54,798 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:39:54,798 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:39:54,799 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:39:54,799 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:39:54,799 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:39:54,799 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:39:54,799 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:39:54,799 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:39:54,799 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:39:54,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:39:54,800 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:39:54,800 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:39:54,800 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:39:54,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:54,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:39:54,840 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:39:54,843 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:39:54,844 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:39:54,845 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:39:54,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_true-valid-memsafety.c [2018-02-04 20:39:54,947 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:39:54,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:39:54,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:39:54,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:39:54,953 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:39:54,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:39:54" (1/1) ... [2018-02-04 20:39:54,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d50194e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:54, skipping insertion in model container [2018-02-04 20:39:54,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:39:54" (1/1) ... [2018-02-04 20:39:54,967 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:39:54,978 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:39:55,066 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:39:55,080 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:39:55,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55 WrapperNode [2018-02-04 20:39:55,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:39:55,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:39:55,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:39:55,086 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:39:55,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (1/1) ... [2018-02-04 20:39:55,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (1/1) ... [2018-02-04 20:39:55,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (1/1) ... [2018-02-04 20:39:55,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (1/1) ... [2018-02-04 20:39:55,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (1/1) ... [2018-02-04 20:39:55,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (1/1) ... [2018-02-04 20:39:55,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (1/1) ... [2018-02-04 20:39:55,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:39:55,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:39:55,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:39:55,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:39:55,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (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 [2018-02-04 20:39:55,146 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:39:55,147 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:39:55,147 INFO L136 BoogieDeclarations]: Found implementation of procedure bar [2018-02-04 20:39:55,147 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-04 20:39:55,147 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:39:55,147 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 20:39:55,147 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 20:39:55,147 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:39:55,147 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:39:55,147 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:39:55,148 INFO L128 BoogieDeclarations]: Found specification of procedure bar [2018-02-04 20:39:55,148 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-04 20:39:55,148 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:39:55,148 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:39:55,148 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:39:55,303 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:39:55,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:39:55 BoogieIcfgContainer [2018-02-04 20:39:55,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:39:55,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:39:55,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:39:55,307 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:39:55,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:39:54" (1/3) ... [2018-02-04 20:39:55,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17530f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:39:55, skipping insertion in model container [2018-02-04 20:39:55,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:55" (2/3) ... [2018-02-04 20:39:55,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17530f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:39:55, skipping insertion in model container [2018-02-04 20:39:55,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:39:55" (3/3) ... [2018-02-04 20:39:55,311 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_true-valid-memsafety.c [2018-02-04 20:39:55,318 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:39:55,324 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-02-04 20:39:55,353 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:39:55,353 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:39:55,353 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:39:55,353 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:39:55,353 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:39:55,354 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:39:55,354 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:39:55,354 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:39:55,355 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:39:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-02-04 20:39:55,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 20:39:55,373 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:55,374 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:55,374 INFO L371 AbstractCegarLoop]: === Iteration 1 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:55,377 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 [2018-02-04 20:39:55,393 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,480 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:55,480 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 20:39:55,480 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,481 INFO L182 omatonBuilderFactory]: Interpolants [71#true, 72#false, 76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:39:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,482 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 20:39:55,491 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 20:39:55,491 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 20:39:55,493 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2018-02-04 20:39:55,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:55,624 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-02-04 20:39:55,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 20:39:55,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-02-04 20:39:55,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:55,633 INFO L225 Difference]: With dead ends: 68 [2018-02-04 20:39:55,633 INFO L226 Difference]: Without dead ends: 65 [2018-02-04 20:39:55,635 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 [2018-02-04 20:39:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-02-04 20:39:55,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-02-04 20:39:55,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-02-04 20:39:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-02-04 20:39:55,662 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-02-04 20:39:55,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:55,662 INFO L432 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-02-04 20:39:55,662 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 20:39:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-02-04 20:39:55,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 20:39:55,663 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:55,663 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:55,663 INFO L371 AbstractCegarLoop]: === Iteration 2 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:55,664 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 [2018-02-04 20:39:55,668 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,726 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:55,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:39:55,727 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,728 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)|))] [2018-02-04 20:39:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,729 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 20:39:55,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 20:39:55,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 20:39:55,730 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 4 states. [2018-02-04 20:39:55,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:55,869 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2018-02-04 20:39:55,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 20:39:55,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 20:39:55,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:55,870 INFO L225 Difference]: With dead ends: 64 [2018-02-04 20:39:55,870 INFO L226 Difference]: Without dead ends: 64 [2018-02-04 20:39:55,871 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 [2018-02-04 20:39:55,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-02-04 20:39:55,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-02-04 20:39:55,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-02-04 20:39:55,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-02-04 20:39:55,874 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-02-04 20:39:55,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:55,874 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-02-04 20:39:55,875 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 20:39:55,875 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-02-04 20:39:55,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 20:39:55,875 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:55,875 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:55,875 INFO L371 AbstractCegarLoop]: === Iteration 3 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:55,875 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 [2018-02-04 20:39:55,878 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,961 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:55,961 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 20:39:55,961 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,962 INFO L182 omatonBuilderFactory]: Interpolants [352#(= 0 foo_~size), 353#(<= foo_~size foo_~i~1), 354#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 345#true, 346#false, 350#(= 0 main_~i~2), 351#(= 0 |foo_#in~size|)] [2018-02-04 20:39:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:55,962 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 20:39:55,962 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 20:39:55,963 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:39:55,963 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 7 states. [2018-02-04 20:39:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:56,230 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-02-04 20:39:56,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 20:39:56,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-02-04 20:39:56,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:56,233 INFO L225 Difference]: With dead ends: 85 [2018-02-04 20:39:56,233 INFO L226 Difference]: Without dead ends: 85 [2018-02-04 20:39:56,234 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-02-04 20:39:56,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-02-04 20:39:56,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2018-02-04 20:39:56,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-02-04 20:39:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-02-04 20:39:56,243 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 17 [2018-02-04 20:39:56,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:56,243 INFO L432 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-02-04 20:39:56,244 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 20:39:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-02-04 20:39:56,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 20:39:56,244 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:56,244 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, 1] [2018-02-04 20:39:56,244 INFO L371 AbstractCegarLoop]: === Iteration 4 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:56,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1600184185, 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 [2018-02-04 20:39:56,249 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:56,336 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:56,336 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 20:39:56,337 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:56,337 INFO L182 omatonBuilderFactory]: Interpolants [528#false, 532#(= 0 main_~i~2), 533#(= 0 |foo_#in~size|), 534#(= 0 foo_~size), 535#(= 0 |bar_#in~size|), 536#(<= bar_~size bar_~i~0), 537#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 527#true] [2018-02-04 20:39:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:56,337 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 20:39:56,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 20:39:56,338 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-04 20:39:56,338 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 8 states. [2018-02-04 20:39:56,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:56,653 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2018-02-04 20:39:56,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 20:39:56,655 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-02-04 20:39:56,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:56,656 INFO L225 Difference]: With dead ends: 91 [2018-02-04 20:39:56,656 INFO L226 Difference]: Without dead ends: 91 [2018-02-04 20:39:56,656 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-02-04 20:39:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-02-04 20:39:56,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2018-02-04 20:39:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-02-04 20:39:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-02-04 20:39:56,662 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 21 [2018-02-04 20:39:56,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:56,663 INFO L432 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-02-04 20:39:56,663 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 20:39:56,663 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-02-04 20:39:56,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-02-04 20:39:56,663 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:56,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:56,664 INFO L371 AbstractCegarLoop]: === Iteration 5 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:56,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1759981910, 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 [2018-02-04 20:39:56,666 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:56,766 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:56,767 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 20:39:56,767 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:56,767 INFO L182 omatonBuilderFactory]: Interpolants [757#(= |foo_#t~ret5| 0), 726#true, 758#(= 0 bar_~res~0), 727#false, 759#(= 0 |bar_#res|), 749#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 750#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))] [2018-02-04 20:39:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:56,767 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 20:39:56,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 20:39:56,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:39:56,768 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 7 states. [2018-02-04 20:39:56,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:56,887 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2018-02-04 20:39:56,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:39:56,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-02-04 20:39:56,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:56,890 INFO L225 Difference]: With dead ends: 94 [2018-02-04 20:39:56,890 INFO L226 Difference]: Without dead ends: 94 [2018-02-04 20:39:56,890 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-02-04 20:39:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-02-04 20:39:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2018-02-04 20:39:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-02-04 20:39:56,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2018-02-04 20:39:56,896 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 31 [2018-02-04 20:39:56,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:56,896 INFO L432 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2018-02-04 20:39:56,896 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 20:39:56,896 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2018-02-04 20:39:56,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-02-04 20:39:56,897 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:56,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:56,897 INFO L371 AbstractCegarLoop]: === Iteration 6 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:56,897 INFO L82 PathProgramCache]: Analyzing trace with hash 216183673, 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 [2018-02-04 20:39:56,900 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:56,912 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:39:56,915 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:56,915 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:56,916 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:56,916 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:56,917 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:56,917 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:57,034 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 8009 column 16: unknown constant %1 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.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:146) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:200) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:120) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.checkEqualityStatus(Elim1Store.java:667) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.analyzeIndexEqualities(Elim1Store.java:759) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:300) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:582) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:200) 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) [2018-02-04 20:39:57,037 INFO L168 Benchmark]: Toolchain (without parser) took 2089.58 ms. Allocated memory was 401.6 MB in the beginning and 610.8 MB in the end (delta: 209.2 MB). Free memory was 359.3 MB in the beginning and 591.8 MB in the end (delta: -232.5 MB). Peak memory consumption was 124.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:57,039 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 401.6 MB. Free memory is still 364.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:39:57,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.81 ms. Allocated memory is still 401.6 MB. Free memory was 359.3 MB in the beginning and 351.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:57,039 INFO L168 Benchmark]: Boogie Preprocessor took 22.13 ms. Allocated memory is still 401.6 MB. Free memory was 351.4 MB in the beginning and 348.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:57,040 INFO L168 Benchmark]: RCFGBuilder took 195.53 ms. Allocated memory is still 401.6 MB. Free memory was 348.8 MB in the beginning and 327.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:57,040 INFO L168 Benchmark]: TraceAbstraction took 1732.34 ms. Allocated memory was 401.6 MB in the beginning and 610.8 MB in the end (delta: 209.2 MB). Free memory was 327.3 MB in the beginning and 592.7 MB in the end (delta: -265.4 MB). Peak memory consumption was 92.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:57,043 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 401.6 MB. Free memory is still 364.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 136.81 ms. Allocated memory is still 401.6 MB. Free memory was 359.3 MB in the beginning and 351.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.13 ms. Allocated memory is still 401.6 MB. Free memory was 351.4 MB in the beginning and 348.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 195.53 ms. Allocated memory is still 401.6 MB. Free memory was 348.8 MB in the beginning and 327.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1732.34 ms. Allocated memory was 401.6 MB in the beginning and 610.8 MB in the end (delta: 209.2 MB). Free memory was 327.3 MB in the beginning and 592.7 MB in the end (delta: -265.4 MB). Peak memory consumption was 92.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 8009 column 16: unknown constant %1 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 8009 column 16: unknown constant %1: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$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_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-39-57-050.csv Received shutdown request...