java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:45:48,993 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:45:48,994 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:45:49,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:45:49,004 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:45:49,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:45:49,006 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:45:49,007 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:45:49,009 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:45:49,010 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:45:49,010 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:45:49,011 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:45:49,011 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:45:49,012 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:45:49,013 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:45:49,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:45:49,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:45:49,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:45:49,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:45:49,020 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:45:49,021 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 20:45:49,026 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:45:49,026 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:45:49,026 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 20:45:49,036 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:45:49,037 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:45:49,038 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:45:49,038 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:45:49,038 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:45:49,038 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:45:49,039 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:45:49,039 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:45:49,039 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:45:49,039 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:45:49,039 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:45:49,039 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:45:49,039 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:45:49,040 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:45:49,040 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:45:49,040 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:45:49,040 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:45:49,040 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:45:49,040 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:45:49,040 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:45:49,041 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:45:49,041 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:45:49,041 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:45:49,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:45:49,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:45:49,077 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:45:49,080 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:45:49,081 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:45:49,081 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:45:49,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_2_false-valid-memtrack_true-termination.i [2018-02-04 20:45:49,234 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:45:49,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:45:49,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:45:49,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:45:49,239 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:45:49,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6554551b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49, skipping insertion in model container [2018-02-04 20:45:49,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,251 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:45:49,285 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:45:49,375 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:45:49,390 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:45:49,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49 WrapperNode [2018-02-04 20:45:49,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:45:49,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:45:49,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:45:49,398 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:45:49,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (1/1) ... [2018-02-04 20:45:49,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:45:49,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:45:49,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:45:49,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:45:49,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (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 20:45:49,456 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:45:49,456 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:45:49,456 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 20:45:49,456 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 20:45:49,456 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:45:49,457 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 20:45:49,457 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 20:45:49,457 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:45:49,457 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:45:49,457 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:45:49,457 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 20:45:49,457 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 20:45:49,458 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 20:45:49,458 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 20:45:49,458 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 20:45:49,458 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:45:49,458 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:45:49,458 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:45:49,617 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:45:49,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:45:49 BoogieIcfgContainer [2018-02-04 20:45:49,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:45:49,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:45:49,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:45:49,620 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:45:49,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:45:49" (1/3) ... [2018-02-04 20:45:49,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3620f9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:45:49, skipping insertion in model container [2018-02-04 20:45:49,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:49" (2/3) ... [2018-02-04 20:45:49,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3620f9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:45:49, skipping insertion in model container [2018-02-04 20:45:49,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:45:49" (3/3) ... [2018-02-04 20:45:49,622 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2_false-valid-memtrack_true-termination.i [2018-02-04 20:45:49,627 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:45:49,633 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-02-04 20:45:49,663 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:45:49,664 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:45:49,664 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:45:49,664 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:45:49,664 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:45:49,664 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:45:49,664 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:45:49,664 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:45:49,665 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:45:49,674 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-02-04 20:45:49,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 20:45:49,681 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:49,681 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:45:49,681 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 20:45:49,686 INFO L82 PathProgramCache]: Analyzing trace with hash -100423179, 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 20:45:49,694 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:49,803 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 20:45:49,826 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:45:49,827 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:45:49,827 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:45:49,827 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 20:45:49,828 INFO L182 omatonBuilderFactory]: Interpolants [49#true, 65#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 50#false, 66#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)), 54#(= |#valid| |old(#valid)|), 71#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|))] [2018-02-04 20:45:49,828 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 20:45:49,828 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:45:49,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:45:49,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:45:49,837 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 6 states. [2018-02-04 20:45:50,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:45:50,107 INFO L93 Difference]: Finished difference Result 99 states and 116 transitions. [2018-02-04 20:45:50,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:45:50,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-02-04 20:45:50,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:45:50,119 INFO L225 Difference]: With dead ends: 99 [2018-02-04 20:45:50,119 INFO L226 Difference]: Without dead ends: 88 [2018-02-04 20:45:50,120 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-02-04 20:45:50,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-02-04 20:45:50,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 54. [2018-02-04 20:45:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-04 20:45:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2018-02-04 20:45:50,209 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 17 [2018-02-04 20:45:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:45:50,210 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2018-02-04 20:45:50,210 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:45:50,210 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2018-02-04 20:45:50,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 20:45:50,211 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:50,212 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:45:50,212 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 20:45:50,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1898895127, 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 20:45:50,218 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,284 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 20:45:50,301 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:45:50,301 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 20:45:50,301 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:45:50,302 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 20:45:50,302 INFO L182 omatonBuilderFactory]: Interpolants [256#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 257#(not (= 0 |ldv_malloc_#t~malloc1.base|)), 258#(not (= 0 |ldv_malloc_#res.base|)), 229#true, 230#false, 246#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 247#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)), 254#(not (= 0 |entry_point_#t~ret2.base|)), 255#(not (= 0 entry_point_~array~0.base))] [2018-02-04 20:45:50,302 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 20:45:50,303 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 20:45:50,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 20:45:50,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-02-04 20:45:50,304 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 9 states. [2018-02-04 20:45:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:45:50,620 INFO L93 Difference]: Finished difference Result 112 states and 131 transitions. [2018-02-04 20:45:50,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 20:45:50,623 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-02-04 20:45:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:45:50,624 INFO L225 Difference]: With dead ends: 112 [2018-02-04 20:45:50,624 INFO L226 Difference]: Without dead ends: 112 [2018-02-04 20:45:50,625 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-02-04 20:45:50,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-02-04 20:45:50,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 54. [2018-02-04 20:45:50,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-04 20:45:50,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-02-04 20:45:50,632 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 19 [2018-02-04 20:45:50,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:45:50,632 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-02-04 20:45:50,632 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 20:45:50,632 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-02-04 20:45:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 20:45:50,633 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:50,633 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:45:50,633 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 20:45:50,633 INFO L82 PathProgramCache]: Analyzing trace with hash -538007597, 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 20:45:50,636 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,689 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 20:45:50,704 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:45:50,705 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 20:45:50,705 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:45:50,705 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 20:45:50,705 INFO L182 omatonBuilderFactory]: Interpolants [464#(< entry_point_~i~0 entry_point_~len~0), 465#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 436#true, 437#false, 455#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 456#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)), 457#(= 10 entry_point_~len~0)] [2018-02-04 20:45:50,706 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 20:45:50,706 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 20:45:50,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 20:45:50,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:45:50,706 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 7 states. [2018-02-04 20:45:50,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:45:50,873 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2018-02-04 20:45:50,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 20:45:50,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-02-04 20:45:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:45:50,875 INFO L225 Difference]: With dead ends: 92 [2018-02-04 20:45:50,875 INFO L226 Difference]: Without dead ends: 92 [2018-02-04 20:45:50,875 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-02-04 20:45:50,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-02-04 20:45:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2018-02-04 20:45:50,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-04 20:45:50,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2018-02-04 20:45:50,882 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 21 [2018-02-04 20:45:50,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:45:50,882 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2018-02-04 20:45:50,882 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 20:45:50,882 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2018-02-04 20:45:50,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 20:45:50,883 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:50,883 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:45:50,883 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 20:45:50,884 INFO L82 PathProgramCache]: Analyzing trace with hash -483541835, 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 20:45:50,886 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 20:45:50,963 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:45:50,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 20:45:50,963 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:45:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 20:45:50,964 INFO L182 omatonBuilderFactory]: Interpolants [640#(and (= 0 |entry_point_#t~ret4.base|) (= 0 |entry_point_#t~ret4.offset|)), 641#(and (= entry_point_~p~0.offset 0) (= entry_point_~p~0.base 0)), 642#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 627#true, 643#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 628#false, 644#(and (= 0 |ldv_malloc_#res.offset|) (= 0 |ldv_malloc_#res.base|))] [2018-02-04 20:45:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 20:45:50,964 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 20:45:50,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 20:45:50,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:45:50,964 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand 7 states. [2018-02-04 20:45:51,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:45:51,092 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2018-02-04 20:45:51,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 20:45:51,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-02-04 20:45:51,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:45:51,094 INFO L225 Difference]: With dead ends: 70 [2018-02-04 20:45:51,094 INFO L226 Difference]: Without dead ends: 70 [2018-02-04 20:45:51,094 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-02-04 20:45:51,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-02-04 20:45:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 49. [2018-02-04 20:45:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-02-04 20:45:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-02-04 20:45:51,098 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 24 [2018-02-04 20:45:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:45:51,099 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-02-04 20:45:51,099 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 20:45:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-02-04 20:45:51,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 20:45:51,100 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:51,100 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:45:51,100 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 20:45:51,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2028231511, 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 20:45:51,103 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 20:45:51,158 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 20:45:51,158 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-02-04 20:45:51,158 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:45:51,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 20:45:51,158 INFO L182 omatonBuilderFactory]: Interpolants [773#true, 774#false, 790#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 791#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 792#(and (= 0 |ldv_malloc_#res.offset|) (= 0 |ldv_malloc_#res.base|)), 782#(and (= 0 |entry_point_#t~ret2.offset|) (= 0 |entry_point_#t~ret2.base|)), 783#(and (= entry_point_~array~0.base 0) (= entry_point_~array~0.offset 0))] [2018-02-04 20:45:51,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 20:45:51,159 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 20:45:51,159 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 20:45:51,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:45:51,159 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 7 states. [2018-02-04 20:45:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:45:51,238 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-02-04 20:45:51,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:45:51,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-02-04 20:45:51,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:45:51,239 INFO L225 Difference]: With dead ends: 51 [2018-02-04 20:45:51,239 INFO L226 Difference]: Without dead ends: 49 [2018-02-04 20:45:51,239 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-02-04 20:45:51,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-02-04 20:45:51,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-02-04 20:45:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-02-04 20:45:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-02-04 20:45:51,243 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 26 [2018-02-04 20:45:51,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:45:51,243 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-02-04 20:45:51,243 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 20:45:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-02-04 20:45:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 20:45:51,243 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:51,244 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:45:51,244 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 20:45:51,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1019008117, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:45:51,246 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,270 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 20:45:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,307 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:45:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-04 20:45:51,309 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:45:51,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 20:45:51,309 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:45:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-04 20:45:51,309 INFO L182 omatonBuilderFactory]: Interpolants [914#(= 1 (select |#valid| |entry_point_#t~ret2.base|)), 915#(= 1 (select |#valid| entry_point_~array~0.base)), 903#true, 904#false, 922#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 923#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 924#(= |#valid| |old(#valid)|), 925#(= |#valid| (store |old(#valid)| |ldv_malloc_#t~malloc1.base| 1)), 926#(= |#valid| (store |old(#valid)| |ldv_malloc_#res.base| 1))] [2018-02-04 20:45:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-04 20:45:51,309 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 20:45:51,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 20:45:51,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-04 20:45:51,310 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 9 states. [2018-02-04 20:45:51,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:45:51,401 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-02-04 20:45:51,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:45:51,402 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-02-04 20:45:51,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:45:51,402 INFO L225 Difference]: With dead ends: 56 [2018-02-04 20:45:51,402 INFO L226 Difference]: Without dead ends: 56 [2018-02-04 20:45:51,403 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-02-04 20:45:51,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-04 20:45:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2018-02-04 20:45:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-04 20:45:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-02-04 20:45:51,405 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 28 [2018-02-04 20:45:51,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:45:51,406 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-02-04 20:45:51,406 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 20:45:51,406 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-02-04 20:45:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 20:45:51,406 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:51,406 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:45:51,406 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 20:45:51,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1019008118, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:45:51,409 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:51,433 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier Unsupported proof rule: (let ((a!1 (= (+ 0 0 (* (- 1) (select |#length_21| |ldv_malloc_#t~malloc1.base_10|))) (* (- 1) (select |#length_21| |ldv_malloc_#t~malloc1.base_10|))))) (rewrite a!1)) [2018-02-04 20:45:51,434 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 140 column 591: theory not supported by interpolation or bad proof at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 20:45:51,436 INFO L168 Benchmark]: Toolchain (without parser) took 2201.85 ms. Allocated memory was 403.2 MB in the beginning and 624.4 MB in the end (delta: 221.2 MB). Free memory was 359.9 MB in the beginning and 474.9 MB in the end (delta: -115.0 MB). Peak memory consumption was 106.3 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:51,437 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 403.2 MB. Free memory is still 365.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:45:51,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.68 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 346.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:51,438 INFO L168 Benchmark]: Boogie Preprocessor took 25.36 ms. Allocated memory is still 403.2 MB. Free memory was 346.7 MB in the beginning and 344.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:51,438 INFO L168 Benchmark]: RCFGBuilder took 194.83 ms. Allocated memory is still 403.2 MB. Free memory was 344.0 MB in the beginning and 326.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:51,438 INFO L168 Benchmark]: TraceAbstraction took 1817.59 ms. Allocated memory was 403.2 MB in the beginning and 624.4 MB in the end (delta: 221.2 MB). Free memory was 324.2 MB in the beginning and 474.9 MB in the end (delta: -150.7 MB). Peak memory consumption was 70.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:51,440 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 403.2 MB. Free memory is still 365.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 161.68 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 346.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.36 ms. Allocated memory is still 403.2 MB. Free memory was 346.7 MB in the beginning and 344.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 194.83 ms. Allocated memory is still 403.2 MB. Free memory was 344.0 MB in the beginning and 326.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1817.59 ms. Allocated memory was 403.2 MB in the beginning and 624.4 MB in the end (delta: 221.2 MB). Free memory was 324.2 MB in the beginning and 474.9 MB in the end (delta: -150.7 MB). Peak memory consumption was 70.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 140 column 591: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 140 column 591: theory not supported by interpolation or bad proof: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-45-51-448.csv Received shutdown request...