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/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:41:43,939 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:41:43,940 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:41:43,950 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:41:43,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:41:43,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:41:43,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:41:43,952 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:41:43,953 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:41:43,954 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:41:43,955 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:41:43,955 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:41:43,956 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:41:43,957 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:41:43,958 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:41:43,959 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:41:43,961 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:41:43,962 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:41:43,963 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:41:43,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:41:43,966 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:41:43,969 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:41:43,970 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:41:43,970 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 04:41:43,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:41:43,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:41:43,981 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:41:43,981 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:41:43,981 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:41:43,981 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:41:43,982 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:41:43,982 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:41:43,982 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:41:43,982 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:41:43,982 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:41:43,982 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:41:43,982 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:41:43,983 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:41:43,983 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:41:43,983 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:41:43,983 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:41:43,983 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:41:43,983 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:41:43,984 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:41:43,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:41:43,984 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:41:43,984 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:41:43,984 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:41:43,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:41:44,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:41:44,025 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:41:44,029 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:41:44,030 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:41:44,030 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:41:44,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-02-04 04:41:44,130 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:41:44,132 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:41:44,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:41:44,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:41:44,139 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:41:44,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ae5b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44, skipping insertion in model container [2018-02-04 04:41:44,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,157 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:41:44,171 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:41:44,265 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:41:44,276 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:41:44,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44 WrapperNode [2018-02-04 04:41:44,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:41:44,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:41:44,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:41:44,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:41:44,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (1/1) ... [2018-02-04 04:41:44,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:41:44,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:41:44,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:41:44,300 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:41:44,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (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 04:41:44,335 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:41:44,335 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:41:44,335 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-04 04:41:44,335 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:41:44,335 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:41:44,336 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:41:44,336 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:41:44,336 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:41:44,336 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:41:44,336 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-04 04:41:44,336 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:41:44,336 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:41:44,336 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:41:44,499 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:41:44,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:41:44 BoogieIcfgContainer [2018-02-04 04:41:44,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:41:44,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:41:44,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:41:44,502 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:41:44,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:41:44" (1/3) ... [2018-02-04 04:41:44,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d40f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:41:44, skipping insertion in model container [2018-02-04 04:41:44,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:44" (2/3) ... [2018-02-04 04:41:44,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d40f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:41:44, skipping insertion in model container [2018-02-04 04:41:44,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:41:44" (3/3) ... [2018-02-04 04:41:44,505 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-02-04 04:41:44,511 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:41:44,516 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-02-04 04:41:44,547 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:41:44,547 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:41:44,547 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:41:44,548 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:41:44,548 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:41:44,548 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:41:44,548 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:41:44,548 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:41:44,549 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:41:44,558 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-02-04 04:41:44,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 04:41:44,564 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:44,565 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:44,565 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-04 04:41:44,569 INFO L82 PathProgramCache]: Analyzing trace with hash -215054890, 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 04:41:44,578 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:41:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:44,640 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 04:41:44,664 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:41:44,664 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:41:44,665 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:41:44,665 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 04:41:44,665 INFO L182 omatonBuilderFactory]: Interpolants [49#true, 50#false, 54#(and (<= 0 main_~i~1) (< main_~i~1 100)), 55#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:41:44,665 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 04:41:44,666 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:41:44,673 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:41:44,674 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:41:44,675 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2018-02-04 04:41:44,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:41:44,839 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-02-04 04:41:44,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:41:44,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-02-04 04:41:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:41:44,850 INFO L225 Difference]: With dead ends: 59 [2018-02-04 04:41:44,850 INFO L226 Difference]: Without dead ends: 55 [2018-02-04 04:41:44,852 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:41:44,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-02-04 04:41:44,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2018-02-04 04:41:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-02-04 04:41:44,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-02-04 04:41:44,887 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 11 [2018-02-04 04:41:44,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:41:44,888 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-02-04 04:41:44,888 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:41:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-02-04 04:41:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:41:44,889 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:44,889 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:44,889 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-04 04:41:44,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1100032001, 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 04:41:44,893 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:41:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:41:44,973 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:41:44,973 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:41:44,973 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:41:44,973 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 04:41:44,974 INFO L182 omatonBuilderFactory]: Interpolants [166#true, 167#false, 171#(and (< foo_~i~0 32) (<= 0 foo_~i~0)), 172#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:41:44,974 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 04:41:44,975 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:41:44,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:41:44,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:41:44,976 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 4 states. [2018-02-04 04:41:45,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:41:45,068 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-02-04 04:41:45,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:41:45,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-02-04 04:41:45,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:41:45,071 INFO L225 Difference]: With dead ends: 55 [2018-02-04 04:41:45,071 INFO L226 Difference]: Without dead ends: 55 [2018-02-04 04:41:45,072 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:41:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-02-04 04:41:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2018-02-04 04:41:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-04 04:41:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2018-02-04 04:41:45,076 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 16 [2018-02-04 04:41:45,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:41:45,077 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2018-02-04 04:41:45,077 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:41:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2018-02-04 04:41:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:41:45,078 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:45,078 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 04:41:45,078 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-04 04:41:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash -258746290, 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 04:41:45,082 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:41:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:45,116 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:41:45,117 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 78 column 366: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool 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) [2018-02-04 04:41:45,119 INFO L168 Benchmark]: Toolchain (without parser) took 988.10 ms. Allocated memory is still 407.4 MB. Free memory was 365.6 MB in the beginning and 276.4 MB in the end (delta: 89.1 MB). Peak memory consumption was 89.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:45,120 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 407.4 MB. Free memory is still 370.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:41:45,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.06 ms. Allocated memory is still 407.4 MB. Free memory was 365.6 MB in the beginning and 357.6 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:45,121 INFO L168 Benchmark]: Boogie Preprocessor took 19.93 ms. Allocated memory is still 407.4 MB. Free memory was 357.6 MB in the beginning and 355.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:45,121 INFO L168 Benchmark]: RCFGBuilder took 199.17 ms. Allocated memory is still 407.4 MB. Free memory was 355.0 MB in the beginning and 338.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:45,121 INFO L168 Benchmark]: TraceAbstraction took 618.81 ms. Allocated memory is still 407.4 MB. Free memory was 338.2 MB in the beginning and 276.4 MB in the end (delta: 61.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:45,123 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 407.4 MB. Free memory is still 370.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 146.06 ms. Allocated memory is still 407.4 MB. Free memory was 365.6 MB in the beginning and 357.6 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.93 ms. Allocated memory is still 407.4 MB. Free memory was 357.6 MB in the beginning and 355.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 199.17 ms. Allocated memory is still 407.4 MB. Free memory was 355.0 MB in the beginning and 338.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 618.81 ms. Allocated memory is still 407.4 MB. Free memory was 338.2 MB in the beginning and 276.4 MB in the end (delta: 61.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 78 column 366: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 78 column 366: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$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/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-41-45-129.csv Received shutdown request...