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/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:51:42,513 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:51:42,514 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:51:42,527 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:51:42,527 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:51:42,528 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:51:42,528 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:51:42,530 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:51:42,532 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:51:42,532 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:51:42,533 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:51:42,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:51:42,534 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:51:42,535 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:51:42,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:51:42,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:51:42,540 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:51:42,541 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:51:42,542 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:51:42,543 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:51:42,545 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 10:51:42,545 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 10:51:42,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 10:51:42,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 10:51:42,547 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 10:51:42,548 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 10:51:42,548 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 10:51:42,548 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 10:51:42,549 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 10:51:42,549 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:51:42,549 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:51:42,549 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 10:51:42,559 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:51:42,559 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:51:42,560 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:51:42,560 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:51:42,561 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:51:42,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:51:42,561 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:51:42,561 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:51:42,561 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:51:42,561 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:51:42,562 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:51:42,562 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:51:42,562 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:51:42,562 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:51:42,562 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:51:42,562 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:51:42,563 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:51:42,563 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:51:42,563 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:51:42,563 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:51:42,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:51:42,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:51:42,564 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-02 10:51:42,564 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-02 10:51:42,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:51:42,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:51:42,607 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:51:42,610 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:51:42,613 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:51:42,613 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:51:42,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2018-02-02 10:51:42,751 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:51:42,752 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:51:42,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:51:42,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:51:42,759 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:51:42,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1482aa0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42, skipping insertion in model container [2018-02-02 10:51:42,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,778 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:51:42,808 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:51:42,896 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:51:42,908 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:51:42,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42 WrapperNode [2018-02-02 10:51:42,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:51:42,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:51:42,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:51:42,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:51:42,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (1/1) ... [2018-02-02 10:51:42,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:51:42,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:51:42,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:51:42,942 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:51:42,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (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 10:51:42,979 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:51:42,979 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:51:42,979 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:51:42,979 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:51:42,979 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:51:42,979 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:51:42,979 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:51:42,979 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:51:42,979 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:51:42,979 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:51:42,980 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:51:42,980 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:51:43,112 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:51:43,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:51:43 BoogieIcfgContainer [2018-02-02 10:51:43,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:51:43,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:51:43,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:51:43,115 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:51:43,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:51:42" (1/3) ... [2018-02-02 10:51:43,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8145b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:51:43, skipping insertion in model container [2018-02-02 10:51:43,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:51:42" (2/3) ... [2018-02-02 10:51:43,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8145b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:51:43, skipping insertion in model container [2018-02-02 10:51:43,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:51:43" (3/3) ... [2018-02-02 10:51:43,117 INFO L107 eAbstractionObserver]: Analyzing ICFG count_down-alloca_true-valid-memsafety_true-termination.i [2018-02-02 10:51:43,124 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:51:43,128 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-02-02 10:51:43,177 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:51:43,177 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:51:43,177 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-02 10:51:43,177 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:51:43,177 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:51:43,178 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:51:43,178 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:51:43,178 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:51:43,178 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:51:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-02-02 10:51:43,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 10:51:43,196 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:51:43,197 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:51:43,197 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 10:51:43,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1460855103, 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 10:51:43,210 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:51:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:51:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:51:43,329 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 10:51:43,347 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:51:43,347 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:51:43,348 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:51:43,348 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 10:51:43,348 INFO L182 omatonBuilderFactory]: Interpolants [48#false, 52#(not (= 0 |main_#t~malloc1.base|)), 53#(not (= 0 main_~arr~0.base)), 54#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 47#true] [2018-02-02 10:51:43,348 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 10:51:43,349 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:51:43,358 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:51:43,358 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:51:43,360 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2018-02-02 10:51:43,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:51:43,500 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2018-02-02 10:51:43,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 10:51:43,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-02-02 10:51:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:51:43,508 INFO L225 Difference]: With dead ends: 42 [2018-02-02 10:51:43,508 INFO L226 Difference]: Without dead ends: 39 [2018-02-02 10:51:43,509 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:51:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-02 10:51:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-02-02 10:51:43,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-02-02 10:51:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-02-02 10:51:43,534 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 13 [2018-02-02 10:51:43,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:51:43,534 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-02-02 10:51:43,534 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:51:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-02-02 10:51:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:51:43,534 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:51:43,535 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:51:43,535 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 10:51:43,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1955174720, 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 10:51:43,537 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:51:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:51:43,556 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 10:51:43,560 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:51:43,561 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:51:43,562 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:51:43,562 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:51:43,595 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 10:51:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:51:43,629 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 10:51:43,652 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:51:43,652 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:51:43,652 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:51:43,652 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 10:51:43,652 INFO L182 omatonBuilderFactory]: Interpolants [145#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 146#(= 1 (select |#valid| |main_#t~malloc1.base|)), 147#(= 1 (select |#valid| main_~arr~0.base)), 148#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 140#true, 141#false] [2018-02-02 10:51:43,653 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 10:51:43,654 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 10:51:43,654 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 10:51:43,654 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 10:51:43,654 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 6 states. [2018-02-02 10:51:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:51:43,830 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2018-02-02 10:51:43,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 10:51:43,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-02 10:51:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:51:43,831 INFO L225 Difference]: With dead ends: 75 [2018-02-02 10:51:43,832 INFO L226 Difference]: Without dead ends: 75 [2018-02-02 10:51:43,832 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-02 10:51:43,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-02-02 10:51:43,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 49. [2018-02-02 10:51:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-02-02 10:51:43,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2018-02-02 10:51:43,837 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 14 [2018-02-02 10:51:43,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:51:43,838 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2018-02-02 10:51:43,838 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 10:51:43,838 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-02-02 10:51:43,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:51:43,838 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:51:43,839 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:51:43,839 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 10:51:43,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1955174719, 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 10:51:43,844 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:51:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:51:43,883 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-02 10:51:43,884 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 78 column 276: 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) [2018-02-02 10:51:43,887 INFO L168 Benchmark]: Toolchain (without parser) took 1135.91 ms. Allocated memory was 405.3 MB in the beginning and 609.7 MB in the end (delta: 204.5 MB). Free memory was 363.5 MB in the beginning and 561.6 MB in the end (delta: -198.1 MB). Peak memory consumption was 6.4 MB. Max. memory is 5.3 GB. [2018-02-02 10:51:43,888 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 405.3 MB. Free memory is still 368.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:51:43,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.58 ms. Allocated memory is still 405.3 MB. Free memory was 362.2 MB in the beginning and 352.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:51:43,889 INFO L168 Benchmark]: Boogie Preprocessor took 28.17 ms. Allocated memory is still 405.3 MB. Free memory was 352.9 MB in the beginning and 350.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:51:43,889 INFO L168 Benchmark]: RCFGBuilder took 170.37 ms. Allocated memory is still 405.3 MB. Free memory was 350.3 MB in the beginning and 333.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 5.3 GB. [2018-02-02 10:51:43,890 INFO L168 Benchmark]: TraceAbstraction took 773.59 ms. Allocated memory was 405.3 MB in the beginning and 609.7 MB in the end (delta: 204.5 MB). Free memory was 332.1 MB in the beginning and 561.6 MB in the end (delta: -229.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:51:43,892 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 405.3 MB. Free memory is still 368.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 160.58 ms. Allocated memory is still 405.3 MB. Free memory was 362.2 MB in the beginning and 352.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.17 ms. Allocated memory is still 405.3 MB. Free memory was 352.9 MB in the beginning and 350.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 170.37 ms. Allocated memory is still 405.3 MB. Free memory was 350.3 MB in the beginning and 333.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 773.59 ms. Allocated memory was 405.3 MB in the beginning and 609.7 MB in the end (delta: 204.5 MB). Free memory was 332.1 MB in the beginning and 561.6 MB in the end (delta: -229.4 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 78 column 276: 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 276: 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/count_down-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-51-43-899.csv Received shutdown request...