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_test1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:52:09,789 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:52:09,790 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:52:09,802 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:52:09,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:52:09,803 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:52:09,804 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:52:09,806 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:52:09,807 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:52:09,808 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:52:09,809 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:52:09,809 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:52:09,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:52:09,811 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:52:09,812 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:52:09,814 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:52:09,816 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:52:09,818 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:52:09,819 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:52:09,820 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:52:09,821 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:52:09,825 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:52:09,825 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:52:09,826 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 04:52:09,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:52:09,835 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:52:09,836 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:52:09,836 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:52:09,836 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:52:09,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:52:09,837 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:52:09,837 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:52:09,837 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:52:09,837 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:52:09,837 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:52:09,837 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:52:09,837 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:52:09,837 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:52:09,838 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:52:09,838 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:52:09,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:52:09,838 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:52:09,838 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:52:09,838 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:52:09,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:52:09,838 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:52:09,838 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:52:09,839 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:52:09,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:09,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:52:09,874 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:52:09,876 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:52:09,877 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:52:09,877 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:52:09,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i [2018-02-04 04:52:10,019 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:52:10,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:52:10,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:52:10,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:52:10,027 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:52:10,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1719b99c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10, skipping insertion in model container [2018-02-04 04:52:10,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,043 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:52:10,077 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:52:10,171 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:52:10,179 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:52:10,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10 WrapperNode [2018-02-04 04:52:10,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:52:10,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:52:10,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:52:10,184 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:52:10,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (1/1) ... [2018-02-04 04:52:10,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:52:10,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:52:10,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:52:10,206 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:52:10,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:52:10,244 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:52:10,244 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:52:10,244 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:52:10,245 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:52:10,245 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:52:10,245 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:52:10,245 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:52:10,245 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:52:10,245 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:52:10,245 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:52:10,245 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:52:10,246 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:52:10,246 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:52:10,246 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:52:10,246 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:52:10,246 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:52:10,333 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:52:10,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:52:10 BoogieIcfgContainer [2018-02-04 04:52:10,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:52:10,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:52:10,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:52:10,336 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:52:10,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:52:10" (1/3) ... [2018-02-04 04:52:10,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3138063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:52:10, skipping insertion in model container [2018-02-04 04:52:10,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:10" (2/3) ... [2018-02-04 04:52:10,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3138063d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:52:10, skipping insertion in model container [2018-02-04 04:52:10,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:52:10" (3/3) ... [2018-02-04 04:52:10,339 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test1_true-valid-memsafety_true-termination.i [2018-02-04 04:52:10,345 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:52:10,349 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 04:52:10,373 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:52:10,373 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:52:10,373 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:52:10,374 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:52:10,374 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:52:10,374 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:52:10,374 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:52:10,374 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:52:10,375 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:52:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-02-04 04:52:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:52:10,391 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:10,391 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:10,391 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:52:10,394 INFO L82 PathProgramCache]: Analyzing trace with hash 169906871, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:10,403 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:10,552 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:10,552 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:52:10,553 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:10,554 INFO L182 omatonBuilderFactory]: Interpolants [36#(= 0 |entry_point_#t~ret2.offset|), 37#(= 0 entry_point_~p~0.offset), 38#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 39#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 40#(= 0 |ldv_malloc_#res.offset|), 27#true, 28#false] [2018-02-04 04:52:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:10,555 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:52:10,563 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:52:10,563 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:52:10,565 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2018-02-04 04:52:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:10,741 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-02-04 04:52:10,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:52:10,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-02-04 04:52:10,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:10,751 INFO L225 Difference]: With dead ends: 29 [2018-02-04 04:52:10,752 INFO L226 Difference]: Without dead ends: 26 [2018-02-04 04:52:10,753 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:52:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-02-04 04:52:10,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-02-04 04:52:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 04:52:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-02-04 04:52:10,783 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2018-02-04 04:52:10,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:10,784 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-02-04 04:52:10,784 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:52:10,784 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-02-04 04:52:10,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:52:10,785 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:10,785 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:10,785 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:52:10,785 INFO L82 PathProgramCache]: Analyzing trace with hash 169906872, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:10,790 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:10,855 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:10,855 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:52:10,856 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:10,856 INFO L182 omatonBuilderFactory]: Interpolants [113#(= 0 |entry_point_#t~ret2.base|), 114#(= 0 entry_point_~p~0.base), 115#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 116#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 117#(= 0 |ldv_malloc_#res.base|), 104#true, 105#false] [2018-02-04 04:52:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:10,858 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:52:10,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:52:10,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:52:10,859 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2018-02-04 04:52:10,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:10,980 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-02-04 04:52:10,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:52:10,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-02-04 04:52:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:10,981 INFO L225 Difference]: With dead ends: 28 [2018-02-04 04:52:10,982 INFO L226 Difference]: Without dead ends: 21 [2018-02-04 04:52:10,982 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 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 04:52:10,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-02-04 04:52:10,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-02-04 04:52:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-02-04 04:52:10,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-02-04 04:52:10,985 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 13 [2018-02-04 04:52:10,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:10,986 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-02-04 04:52:10,986 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:52:10,986 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-02-04 04:52:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:52:10,986 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:10,987 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:10,987 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:52:10,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862325, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:10,989 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:11,087 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:11,088 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:52:11,088 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:11,088 INFO L182 omatonBuilderFactory]: Interpolants [176#true, 192#(= 0 |ldv_malloc_#res.offset|), 177#false, 187#(= 0 |entry_point_#t~ret2.offset|), 188#(= 0 entry_point_~p~0.offset), 189#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 190#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 191#(= 0 |ldv_malloc_#t~malloc1.offset|)] [2018-02-04 04:52:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:11,089 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:52:11,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:52:11,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:52:11,089 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 8 states. [2018-02-04 04:52:11,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:11,148 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2018-02-04 04:52:11,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:52:11,149 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-02-04 04:52:11,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:11,149 INFO L225 Difference]: With dead ends: 20 [2018-02-04 04:52:11,149 INFO L226 Difference]: Without dead ends: 20 [2018-02-04 04:52:11,149 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:52:11,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-02-04 04:52:11,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-02-04 04:52:11,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-02-04 04:52:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2018-02-04 04:52:11,151 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2018-02-04 04:52:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:11,152 INFO L432 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2018-02-04 04:52:11,152 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:52:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2018-02-04 04:52:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:52:11,152 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:11,152 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:11,152 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:52:11,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862326, 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 04:52:11,156 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,163 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:52:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,214 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:52:11,216 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:11,217 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:11,288 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 6 treesize of output 5 [2018-02-04 04:52:11,289 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:52:11,290 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:52:11,291 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 04:52:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:11,323 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:11,323 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:52:11,323 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:11,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:11,323 INFO L182 omatonBuilderFactory]: Interpolants [249#(= 1 (select |#valid| |entry_point_#t~ret2.base|)), 250#(= 1 (select |#valid| entry_point_~p~0.base)), 251#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 252#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 253#(= 1 (select |#valid| |ldv_malloc_#t~malloc1.base|)), 238#true, 254#(= 1 (select |#valid| |ldv_malloc_#res.base|)), 239#false] [2018-02-04 04:52:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:11,324 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:52:11,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:52:11,324 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:52:11,324 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 8 states. [2018-02-04 04:52:11,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:11,372 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-02-04 04:52:11,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:52:11,372 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-02-04 04:52:11,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:11,373 INFO L225 Difference]: With dead ends: 19 [2018-02-04 04:52:11,373 INFO L226 Difference]: Without dead ends: 19 [2018-02-04 04:52:11,373 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:52:11,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-02-04 04:52:11,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-02-04 04:52:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-02-04 04:52:11,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-02-04 04:52:11,375 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 15 [2018-02-04 04:52:11,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:11,375 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-02-04 04:52:11,375 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:52:11,375 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-02-04 04:52:11,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:52:11,375 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:11,375 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:11,376 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:52:11,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1341515893, 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 04:52:11,378 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,387 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:52:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:11,410 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 04:52:11,410 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:11,411 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:11,411 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:11,411 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:11,412 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:11,412 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:52:11,416 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: has to be unsat by construction, we do check only for interpolant computation at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:347) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:52:11,418 INFO L168 Benchmark]: Toolchain (without parser) took 1398.00 ms. Allocated memory was 395.8 MB in the beginning and 595.6 MB in the end (delta: 199.8 MB). Free memory was 352.3 MB in the beginning and 546.5 MB in the end (delta: -194.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:11,419 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 395.8 MB. Free memory is still 358.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:52:11,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.78 ms. Allocated memory is still 395.8 MB. Free memory was 352.3 MB in the beginning and 340.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:11,419 INFO L168 Benchmark]: Boogie Preprocessor took 21.07 ms. Allocated memory is still 395.8 MB. Free memory was 340.4 MB in the beginning and 337.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:11,419 INFO L168 Benchmark]: RCFGBuilder took 128.24 ms. Allocated memory is still 395.8 MB. Free memory was 337.8 MB in the beginning and 324.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:11,420 INFO L168 Benchmark]: TraceAbstraction took 1083.19 ms. Allocated memory was 395.8 MB in the beginning and 595.6 MB in the end (delta: 199.8 MB). Free memory was 324.2 MB in the beginning and 546.5 MB in the end (delta: -222.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:52:11,421 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 395.8 MB. Free memory is still 358.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 162.78 ms. Allocated memory is still 395.8 MB. Free memory was 352.3 MB in the beginning and 340.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.07 ms. Allocated memory is still 395.8 MB. Free memory was 340.4 MB in the beginning and 337.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 128.24 ms. Allocated memory is still 395.8 MB. Free memory was 337.8 MB in the beginning and 324.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1083.19 ms. Allocated memory was 395.8 MB in the beginning and 595.6 MB in the end (delta: 199.8 MB). Free memory was 324.2 MB in the beginning and 546.5 MB in the end (delta: -222.3 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: has to be unsat by construction, we do check only for interpolant computation de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: has to be unsat by construction, we do check only for interpolant computation: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:353) 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_test1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-52-11-429.csv Received shutdown request...