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/memsafety/test-0158_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:28:44,751 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:28:44,752 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:28:44,764 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:28:44,764 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:28:44,765 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:28:44,766 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:28:44,767 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:28:44,768 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:28:44,769 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:28:44,770 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:28:44,770 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:28:44,771 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:28:44,772 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:28:44,772 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:28:44,774 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:28:44,775 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:28:44,777 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:28:44,777 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:28:44,778 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:28:44,780 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 20:28:44,780 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 20:28:44,780 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 20:28:44,781 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 20:28:44,782 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 20:28:44,783 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 20:28:44,783 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 20:28:44,783 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 20:28:44,783 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 20:28:44,783 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:28:44,784 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:28:44,784 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 20:28:44,793 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:28:44,793 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:28:44,793 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:28:44,794 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:28:44,794 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:28:44,795 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:28:44,795 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:28:44,795 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:28:44,795 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:28:44,795 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:28:44,795 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:28:44,795 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:28:44,795 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:28:44,795 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:28:44,795 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:28:44,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:28:44,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:28:44,836 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:28:44,839 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:28:44,840 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:28:44,840 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:28:44,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-free.i [2018-02-04 20:28:44,957 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:28:44,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:28:44,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:28:44,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:28:44,962 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:28:44,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:28:44" (1/1) ... [2018-02-04 20:28:44,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa21b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:44, skipping insertion in model container [2018-02-04 20:28:44,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:28:44" (1/1) ... [2018-02-04 20:28:44,974 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:28:45,003 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:28:45,084 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:28:45,096 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:28:45,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45 WrapperNode [2018-02-04 20:28:45,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:28:45,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:28:45,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:28:45,104 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:28:45,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (1/1) ... [2018-02-04 20:28:45,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (1/1) ... [2018-02-04 20:28:45,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (1/1) ... [2018-02-04 20:28:45,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (1/1) ... [2018-02-04 20:28:45,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (1/1) ... [2018-02-04 20:28:45,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (1/1) ... [2018-02-04 20:28:45,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (1/1) ... [2018-02-04 20:28:45,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:28:45,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:28:45,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:28:45,130 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:28:45,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (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 20:28:45,169 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:28:45,169 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:28:45,169 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:28:45,169 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 20:28:45,169 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 20:28:45,169 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 20:28:45,169 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 20:28:45,169 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:28:45,170 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:28:45,170 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:28:45,170 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 20:28:45,170 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 20:28:45,170 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:28:45,170 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:28:45,170 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:28:45,295 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:28:45,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:28:45 BoogieIcfgContainer [2018-02-04 20:28:45,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:28:45,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:28:45,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:28:45,299 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:28:45,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:28:44" (1/3) ... [2018-02-04 20:28:45,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464f33bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:28:45, skipping insertion in model container [2018-02-04 20:28:45,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:28:45" (2/3) ... [2018-02-04 20:28:45,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464f33bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:28:45, skipping insertion in model container [2018-02-04 20:28:45,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:28:45" (3/3) ... [2018-02-04 20:28:45,302 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-free.i [2018-02-04 20:28:45,307 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:28:45,311 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-02-04 20:28:45,338 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:28:45,338 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:28:45,338 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:28:45,338 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:28:45,338 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:28:45,338 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:28:45,338 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:28:45,338 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:28:45,339 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:28:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-02-04 20:28:45,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 20:28:45,357 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:28:45,358 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:28:45,358 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 20:28:45,364 INFO L82 PathProgramCache]: Analyzing trace with hash -875651709, 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 20:28:45,375 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:28:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:45,394 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:28:45,401 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,401 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,402 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,402 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,425 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 [2018-02-04 20:28:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:45,445 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 20:28:45,466 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:28:45,466 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:28:45,467 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:28:45,467 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 20:28:45,467 INFO L182 omatonBuilderFactory]: Interpolants [48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 41#true, 42#false, 46#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 47#(= 1 (select |#valid| |main_~#data~0.base|))] [2018-02-04 20:28:45,467 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 20:28:45,468 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:28:45,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:28:45,475 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 20:28:45,477 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2018-02-04 20:28:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:28:45,551 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-02-04 20:28:45,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:28:45,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-02-04 20:28:45,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:28:45,559 INFO L225 Difference]: With dead ends: 33 [2018-02-04 20:28:45,559 INFO L226 Difference]: Without dead ends: 30 [2018-02-04 20:28:45,560 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2018-02-04 20:28:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-04 20:28:45,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-02-04 20:28:45,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-02-04 20:28:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-02-04 20:28:45,628 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 8 [2018-02-04 20:28:45,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:28:45,628 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-02-04 20:28:45,628 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:28:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-02-04 20:28:45,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 20:28:45,629 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:28:45,629 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:28:45,629 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 20:28:45,629 INFO L82 PathProgramCache]: Analyzing trace with hash -875651708, 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 20:28:45,637 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:28:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:45,648 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 20:28:45,650 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,650 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,650 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,650 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,650 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,651 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-02-04 20:28:45,682 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 20:28:45,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 20:28:45,695 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:9 [2018-02-04 20:28:45,699 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (exists ((%2 (Array Int Int))) (! (and (= (store |c_#valid| %1 1) (store %0 %1 1)) (= (store |c_#length| %1 10) (store %2 %1 10))) :qid itp)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:28:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:45,744 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 20:28:45,767 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:28:45,767 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:28:45,767 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:28:45,767 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 20:28:45,768 INFO L182 omatonBuilderFactory]: Interpolants [114#true, 115#false, 119#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (exists ((%2 (Array Int Int))) (! (and (= (store |#valid| %1 1) (store %0 %1 1)) (= (store |#length| %1 10) (store %2 %1 10))) :qid itp)) :qid itp)) :qid itp)), 120#(and (= 1 (select |#valid| |main_~#data~0.base|)) (= 0 |main_~#data~0.offset|) (= 10 (select |#length| |main_~#data~0.base|))), 121#(and (<= 0 |main_~#data~0.offset|) (<= (+ |main_~#data~0.offset| 4) (select |#length| |main_~#data~0.base|)) (= 10 (select |#length| |main_~#data~0.base|))), 122#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:28:45,768 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 20:28:45,769 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:28:45,769 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:28:45,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:28:45,770 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 6 states. [2018-02-04 20:28:45,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:28:45,850 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-02-04 20:28:45,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:28:45,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-04 20:28:45,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:28:45,852 INFO L225 Difference]: With dead ends: 25 [2018-02-04 20:28:45,852 INFO L226 Difference]: Without dead ends: 25 [2018-02-04 20:28:45,852 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=4, NotChecked=8, Total=42 [2018-02-04 20:28:45,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-02-04 20:28:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-02-04 20:28:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 20:28:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-02-04 20:28:45,855 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 8 [2018-02-04 20:28:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:28:45,856 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-02-04 20:28:45,856 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:28:45,856 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-02-04 20:28:45,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 20:28:45,856 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:28:45,856 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:28:45,856 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 20:28:45,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1516119050, 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 20:28:45,860 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:28:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:45,879 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 20:28:45,881 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,882 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,882 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,882 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,882 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,883 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:45,895 WARN L1033 $PredicateComparison]: unable to prove that (forall ((%0 Int)) (! (exists ((%1 (Array Int Int)) (%2 (Array Int (Array Int Int)))) (! (and (= %1 (select |c_#memory_$Pointer$.offset| %0)) (forall ((%3 Int)) (! (let ((.cse0 (store %1 0 0))) (= (store |c_#memory_$Pointer$.offset| %3 .cse0) (store %2 %3 .cse0))) :qid itp))) :qid itp)) :qid itp)) is different from true [2018-02-04 20:28:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:28:45,988 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:28:45,988 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 20:28:45,989 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:28:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:28:45,989 INFO L182 omatonBuilderFactory]: Interpolants [176#false, 180#(forall ((%0 Int)) (! (exists ((%1 (Array Int Int)) (%2 (Array Int (Array Int Int)))) (! (and (= %1 (select |#memory_$Pointer$.offset| %0)) (forall ((%3 Int)) (! (= (store |#memory_$Pointer$.offset| %3 (store %1 0 0)) (store %2 %3 (store %1 0 0))) :qid itp))) :qid itp)) :qid itp)), 181#(= 0 |main_~#data~0.offset|), 182#(and (= 0 (select (store (select |#memory_$Pointer$.offset| |main_~#data~0.base|) |main_~#data~0.offset| |main_#t~malloc0.offset|) 0)) (= 0 |main_~#data~0.offset|)), 183#(and (= 0 |main_~#data~0.offset|) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0))), 184#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0)) (= (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) |main_~#data~0.offset|) (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0))), 185#(= 0 |main_#t~mem5.offset|), 186#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 175#true] [2018-02-04 20:28:45,989 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 20:28:45,989 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 20:28:45,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 20:28:45,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2018-02-04 20:28:45,990 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 9 states. [2018-02-04 20:28:46,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:28:46,058 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-02-04 20:28:46,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 20:28:46,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2018-02-04 20:28:46,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:28:46,058 INFO L225 Difference]: With dead ends: 24 [2018-02-04 20:28:46,058 INFO L226 Difference]: Without dead ends: 24 [2018-02-04 20:28:46,059 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=77, Unknown=2, NotChecked=18, Total=132 [2018-02-04 20:28:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-02-04 20:28:46,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-02-04 20:28:46,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-02-04 20:28:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-02-04 20:28:46,061 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 14 [2018-02-04 20:28:46,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:28:46,062 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-02-04 20:28:46,062 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 20:28:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-02-04 20:28:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 20:28:46,062 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:28:46,063 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:28:46,063 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 20:28:46,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1516119051, 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 20:28:46,066 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:28:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:46,117 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier [2018-02-04 20:28:46,120 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,121 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,121 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,121 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,121 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,122 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,122 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,122 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,122 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,122 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,131 WARN L1033 $PredicateComparison]: unable to prove that (forall ((%0 Int)) (! (exists ((%1 (Array Int Int))) (! (forall ((%2 Int)) (! (exists ((%3 (Array Int (Array Int Int)))) (! (forall ((%4 Int)) (! (= (store |c_#memory_$Pointer$.base| %4 (store (select |c_#memory_$Pointer$.base| %0) 0 %2)) (store %3 %4 (store %1 0 %2))) :qid itp)) :qid itp)) :qid itp)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:28:46,131 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,131 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,132 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,132 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,132 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,132 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-02-04 20:28:46,147 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 20:28:46,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 20:28:46,150 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2018-02-04 20:28:46,155 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (exists ((%2 (Array Int (Array Int Int)))) (! (let ((.cse0 (= |c_main_~#data~0.offset| 0))) (and (= (store %2 |c_main_~#data~0.base| (store %0 0 %1)) (store |c_#memory_$Pointer$.base| |c_main_~#data~0.base| (store (select |c_#memory_$Pointer$.base| |c_main_~#data~0.base|) 0 %1))) .cse0 (or (not .cse0) (= 0 |c_main_~#data~0.offset|)))) :qid itp)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:28:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:28:46,204 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:28:46,205 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 20:28:46,205 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:28:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:28:46,205 INFO L182 omatonBuilderFactory]: Interpolants [241#true, 242#false, 246#(forall ((%0 Int)) (! (exists ((%1 (Array Int Int))) (! (forall ((%2 Int)) (! (exists ((%3 (Array Int (Array Int Int)))) (! (forall ((%4 Int)) (! (= (store |#memory_$Pointer$.base| %4 (store (select |#memory_$Pointer$.base| %0) 0 %2)) (store %3 %4 (store %1 0 %2))) :qid itp)) :qid itp)) :qid itp)) :qid itp)) :qid itp)), 247#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (exists ((%2 (Array Int (Array Int Int)))) (! (and (= (store %2 |main_~#data~0.base| (store %0 0 %1)) (store |#memory_$Pointer$.base| |main_~#data~0.base| (store (select |#memory_$Pointer$.base| |main_~#data~0.base|) 0 %1))) (= |main_~#data~0.offset| 0) (or (not (= |main_~#data~0.offset| 0)) (= 0 |main_~#data~0.offset|))) :qid itp)) :qid itp)) :qid itp)), 248#(and (= 0 |main_~#data~0.offset|) (= 1 (select |#valid| |main_#t~malloc0.base|))), 249#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_~#data~0.base|) 0))) (= 0 |main_~#data~0.offset|)), 250#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_~#data~0.base|) 0))) (= (select (select |#memory_$Pointer$.base| |main_~#data~0.base|) |main_~#data~0.offset|) (select (select |#memory_$Pointer$.base| |main_~#data~0.base|) 0))), 251#(= 1 (select |#valid| |main_#t~mem5.base|)), 252#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:28:46,205 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 20:28:46,206 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 20:28:46,206 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 20:28:46,206 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=32, Unknown=2, NotChecked=22, Total=72 [2018-02-04 20:28:46,206 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 9 states. [2018-02-04 20:28:46,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:28:46,276 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-02-04 20:28:46,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 20:28:46,276 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2018-02-04 20:28:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:28:46,277 INFO L225 Difference]: With dead ends: 23 [2018-02-04 20:28:46,277 INFO L226 Difference]: Without dead ends: 23 [2018-02-04 20:28:46,277 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=64, Unknown=3, NotChecked=34, Total=132 [2018-02-04 20:28:46,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-02-04 20:28:46,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-02-04 20:28:46,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-02-04 20:28:46,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-02-04 20:28:46,279 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 14 [2018-02-04 20:28:46,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:28:46,279 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-02-04 20:28:46,279 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 20:28:46,279 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-02-04 20:28:46,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 20:28:46,280 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:28:46,280 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:28:46,280 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 20:28:46,280 INFO L82 PathProgramCache]: Analyzing trace with hash 996493579, 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 20:28:46,286 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:28:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:46,300 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 20:28:46,301 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,302 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,302 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,302 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,302 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,302 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:28:46,312 WARN L1033 $PredicateComparison]: unable to prove that (forall ((%0 Int)) (! (exists ((%1 (Array Int Int)) (%2 (Array Int (Array Int Int)))) (! (and (= %1 (select |c_#memory_$Pointer$.offset| %0)) (forall ((%3 Int)) (! (let ((.cse0 (store %1 0 0))) (= (store |c_#memory_$Pointer$.offset| %3 .cse0) (store %2 %3 .cse0))) :qid itp))) :qid itp)) :qid itp)) is different from true [2018-02-04 20:28:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:28:46,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:28:46,397 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:28:46,398 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 20:28:46,398 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:28:46,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:28:46,398 INFO L182 omatonBuilderFactory]: Interpolants [305#true, 306#false, 310#(forall ((%0 Int)) (! (exists ((%1 (Array Int Int)) (%2 (Array Int (Array Int Int)))) (! (and (= %1 (select |#memory_$Pointer$.offset| %0)) (forall ((%3 Int)) (! (= (store |#memory_$Pointer$.offset| %3 (store %1 0 0)) (store %2 %3 (store %1 0 0))) :qid itp))) :qid itp)) :qid itp)), 311#(= 0 |main_~#data~0.offset|), 312#(and (= 0 (select (store (select |#memory_$Pointer$.offset| |main_~#data~0.base|) |main_~#data~0.offset| |main_#t~malloc0.offset|) 0)) (= 0 |main_~#data~0.offset|)), 313#(and (= 0 |main_~#data~0.offset|) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0))), 314#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0)) (= (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) |main_~#data~0.offset|) (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0))), 315#(= 0 |main_#t~mem3.offset|), 316#(= 0 main_~ptr~0.offset), 317#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:28:46,398 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 20:28:46,398 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 20:28:46,399 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 20:28:46,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2018-02-04 20:28:46,399 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 10 states. [2018-02-04 20:28:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:28:46,488 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-02-04 20:28:46,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 20:28:46,488 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-02-04 20:28:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:28:46,488 INFO L225 Difference]: With dead ends: 22 [2018-02-04 20:28:46,488 INFO L226 Difference]: Without dead ends: 22 [2018-02-04 20:28:46,488 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=113, Unknown=2, NotChecked=22, Total=182 [2018-02-04 20:28:46,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-02-04 20:28:46,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-02-04 20:28:46,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-02-04 20:28:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-02-04 20:28:46,490 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 16 [2018-02-04 20:28:46,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:28:46,491 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-02-04 20:28:46,491 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 20:28:46,491 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-02-04 20:28:46,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 20:28:46,491 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:28:46,492 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:28:46,492 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-04 20:28:46,492 INFO L82 PathProgramCache]: Analyzing trace with hash 996493580, 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) [2018-02-04 20:28:46,495 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:28:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 20:28:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 20:28:46,569 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 20:28:46,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 08:28:46 BoogieIcfgContainer [2018-02-04 20:28:46,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 20:28:46,582 INFO L168 Benchmark]: Toolchain (without parser) took 1624.34 ms. Allocated memory was 407.9 MB in the beginning and 618.7 MB in the end (delta: 210.8 MB). Free memory was 364.6 MB in the beginning and 453.8 MB in the end (delta: -89.3 MB). Peak memory consumption was 121.5 MB. Max. memory is 5.3 GB. [2018-02-04 20:28:46,583 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 407.9 MB. Free memory is still 371.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:28:46,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.12 ms. Allocated memory is still 407.9 MB. Free memory was 364.6 MB in the beginning and 353.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 5.3 GB. [2018-02-04 20:28:46,583 INFO L168 Benchmark]: Boogie Preprocessor took 25.26 ms. Allocated memory is still 407.9 MB. Free memory was 353.8 MB in the beginning and 352.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 20:28:46,584 INFO L168 Benchmark]: RCFGBuilder took 165.78 ms. Allocated memory is still 407.9 MB. Free memory was 352.4 MB in the beginning and 333.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:28:46,584 INFO L168 Benchmark]: TraceAbstraction took 1285.61 ms. Allocated memory was 407.9 MB in the beginning and 618.7 MB in the end (delta: 210.8 MB). Free memory was 333.9 MB in the beginning and 453.8 MB in the end (delta: -120.0 MB). Peak memory consumption was 90.8 MB. Max. memory is 5.3 GB. [2018-02-04 20:28:46,586 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 407.9 MB. Free memory is still 371.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 145.12 ms. Allocated memory is still 407.9 MB. Free memory was 364.6 MB in the beginning and 353.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.26 ms. Allocated memory is still 407.9 MB. Free memory was 353.8 MB in the beginning and 352.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 165.78 ms. Allocated memory is still 407.9 MB. Free memory was 352.4 MB in the beginning and 333.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1285.61 ms. Allocated memory was 407.9 MB in the beginning and 618.7 MB in the end (delta: 210.8 MB). Free memory was 333.9 MB in the beginning and 453.8 MB in the end (delta: -120.0 MB). Peak memory consumption was 90.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L742-L749] FCALL union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; VAL [data={9:0}] [L750] EXPR, FCALL malloc(37U) VAL [data={9:0}, malloc(37U)={11:0}] [L750] FCALL data.p0 = malloc(37U) VAL [data={9:0}, malloc(37U)={11:0}] [L751] FCALL data.str.p2 = &data VAL [data={9:0}, malloc(37U)={11:0}] [L752] EXPR, FCALL data.p0 VAL [data={9:0}, data.p0={11:0}, malloc(37U)={11:0}] [L752] void *ptr = data.p0; [L753] FCALL data.str.c[1] = sizeof data.str.p1 VAL [data={9:0}, malloc(37U)={11:0}, ptr={11:0}] [L754] EXPR, FCALL data.p0 VAL [data={9:0}, data.p0={11:0}, malloc(37U)={11:0}, ptr={11:0}] [L754] FCALL free(data.p0) VAL [data={9:0}, data.p0={11:0}, malloc(37U)={11:0}, ptr={11:0}] [L755] FCALL free(ptr) VAL [data={9:0}, malloc(37U)={11:0}, ptr={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 15 error locations. UNSAFE Result, 1.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 69 SDtfs, 101 SDslu, 112 SDs, 0 SdLazy, 232 SolverSat, 42 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 6 QuantifiedInterpolants, 6008 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-28-46-594.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_20-28-46-594.csv Received shutdown request...