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_Camel.epf -i ../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-03 23:14:21,803 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-03 23:14:21,804 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-03 23:14:21,816 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-03 23:14:21,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-03 23:14:21,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-03 23:14:21,818 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-03 23:14:21,820 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-03 23:14:21,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-03 23:14:21,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-03 23:14:21,823 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-03 23:14:21,823 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-03 23:14:21,824 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-03 23:14:21,825 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-03 23:14:21,826 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-03 23:14:21,828 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-03 23:14:21,830 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-03 23:14:21,831 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-03 23:14:21,832 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-03 23:14:21,833 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-03 23:14:21,835 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-03 23:14:21,840 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-03 23:14:21,848 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-03 23:14:21,849 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-03 23:14:21,849 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-03 23:14:21,849 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-03 23:14:21,850 INFO L133 SettingsManager]: * Use SBE=true [2018-02-03 23:14:21,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-03 23:14:21,850 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-03 23:14:21,850 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-03 23:14:21,850 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-03 23:14:21,850 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-03 23:14:21,850 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-03 23:14:21,850 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-03 23:14:21,850 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-03 23:14:21,851 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-03 23:14:21,851 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-03 23:14:21,851 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-03 23:14:21,851 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-03 23:14:21,851 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-03 23:14:21,851 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-03 23:14:21,851 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-03 23:14:21,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-03 23:14:21,851 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-03 23:14:21,852 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-03 23:14:21,852 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-03 23:14:21,852 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-03 23:14:21,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-03 23:14:21,885 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-03 23:14:21,887 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-03 23:14:21,889 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-03 23:14:21,889 INFO L276 PluginConnector]: CDTParser initialized [2018-02-03 23:14:21,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-02-03 23:14:22,020 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-03 23:14:22,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-03 23:14:22,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-03 23:14:22,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-03 23:14:22,026 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-03 23:14:22,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d8ab84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22, skipping insertion in model container [2018-02-03 23:14:22,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,039 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-03 23:14:22,066 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-03 23:14:22,150 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-03 23:14:22,161 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-03 23:14:22,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22 WrapperNode [2018-02-03 23:14:22,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-03 23:14:22,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-03 23:14:22,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-03 23:14:22,170 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-03 23:14:22,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (1/1) ... [2018-02-03 23:14:22,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-03 23:14:22,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-03 23:14:22,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-03 23:14:22,197 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-03 23:14:22,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (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 [2018-02-03 23:14:22,233 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-03 23:14:22,233 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-03 23:14:22,233 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-03 23:14:22,233 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-03 23:14:22,234 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-03 23:14:22,234 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-03 23:14:22,234 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-03 23:14:22,234 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-03 23:14:22,234 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-03 23:14:22,234 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-03 23:14:22,234 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-03 23:14:22,234 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-03 23:14:22,235 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-03 23:14:22,235 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-03 23:14:22,351 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-03 23:14:22,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.02 11:14:22 BoogieIcfgContainer [2018-02-03 23:14:22,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-03 23:14:22,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-03 23:14:22,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-03 23:14:22,354 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-03 23:14:22,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.02 11:14:22" (1/3) ... [2018-02-03 23:14:22,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30635772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.02 11:14:22, skipping insertion in model container [2018-02-03 23:14:22,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.02 11:14:22" (2/3) ... [2018-02-03 23:14:22,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30635772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.02 11:14:22, skipping insertion in model container [2018-02-03 23:14:22,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.02 11:14:22" (3/3) ... [2018-02-03 23:14:22,358 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-02-03 23:14:22,365 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-03 23:14:22,371 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-02-03 23:14:22,403 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-03 23:14:22,403 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-03 23:14:22,403 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-03 23:14:22,404 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-03 23:14:22,404 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-03 23:14:22,404 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-03 23:14:22,404 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-03 23:14:22,404 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-03 23:14:22,405 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-03 23:14:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-02-03 23:14:22,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-03 23:14:22,425 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 23:14:22,425 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 23:14:22,426 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-03 23:14:22,428 INFO L82 PathProgramCache]: Analyzing trace with hash 481461009, now seen corresponding path program 1 times [2018-02-03 23:14:22,430 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 23:14:22,430 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 23:14:22,460 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 23:14:22,460 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 23:14:22,461 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 23:14:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 23:14:22,506 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 23:14:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 23:14:22,582 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-03 23:14:22,583 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-03 23:14:22,584 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-03 23:14:22,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-03 23:14:22,594 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-03 23:14:22,597 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-02-03 23:14:22,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 23:14:22,631 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-02-03 23:14:22,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-03 23:14:22,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-02-03 23:14:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 23:14:22,687 INFO L225 Difference]: With dead ends: 21 [2018-02-03 23:14:22,687 INFO L226 Difference]: Without dead ends: 18 [2018-02-03 23:14:22,688 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-03 23:14:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-02-03 23:14:22,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-02-03 23:14:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-02-03 23:14:22,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-02-03 23:14:22,708 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2018-02-03 23:14:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 23:14:22,708 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-02-03 23:14:22,708 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-03 23:14:22,708 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-02-03 23:14:22,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-03 23:14:22,708 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 23:14:22,708 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 23:14:22,708 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-03 23:14:22,709 INFO L82 PathProgramCache]: Analyzing trace with hash 481461010, now seen corresponding path program 1 times [2018-02-03 23:14:22,709 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 23:14:22,709 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 23:14:22,709 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 23:14:22,710 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 23:14:22,710 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 23:14:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-03 23:14:22,726 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-03 23:14:22,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-03 23:14:22,765 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-03 23:14:22,765 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-03 23:14:22,767 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-03 23:14:22,767 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-03 23:14:22,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-03 23:14:22,768 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 4 states. [2018-02-03 23:14:22,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-03 23:14:22,831 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-02-03 23:14:22,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-03 23:14:22,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-03 23:14:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-03 23:14:22,832 INFO L225 Difference]: With dead ends: 15 [2018-02-03 23:14:22,832 INFO L226 Difference]: Without dead ends: 15 [2018-02-03 23:14:22,833 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-03 23:14:22,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-02-03 23:14:22,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-02-03 23:14:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-02-03 23:14:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-02-03 23:14:22,836 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 8 [2018-02-03 23:14:22,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-03 23:14:22,837 INFO L432 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-02-03 23:14:22,837 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-03 23:14:22,837 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-02-03 23:14:22,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-03 23:14:22,837 INFO L343 BasicCegarLoop]: Found error trace [2018-02-03 23:14:22,838 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-03 23:14:22,838 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-03 23:14:22,838 INFO L82 PathProgramCache]: Analyzing trace with hash 2142709462, now seen corresponding path program 1 times [2018-02-03 23:14:22,838 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-03 23:14:22,838 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-03 23:14:22,839 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 23:14:22,839 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-03 23:14:22,840 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-03 23:14:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-03 23:14:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-03 23:14:22,888 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-03 23:14:22,895 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-03 23:14:22,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.02 11:14:22 BoogieIcfgContainer [2018-02-03 23:14:22,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-03 23:14:22,909 INFO L168 Benchmark]: Toolchain (without parser) took 888.43 ms. Allocated memory was 395.3 MB in the beginning and 590.3 MB in the end (delta: 195.0 MB). Free memory was 350.7 MB in the beginning and 544.7 MB in the end (delta: -194.1 MB). Peak memory consumption was 982.7 kB. Max. memory is 5.3 GB. [2018-02-03 23:14:22,910 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 395.3 MB. Free memory is still 356.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-03 23:14:22,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.18 ms. Allocated memory is still 395.3 MB. Free memory was 349.4 MB in the beginning and 340.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. [2018-02-03 23:14:22,911 INFO L168 Benchmark]: Boogie Preprocessor took 26.37 ms. Allocated memory is still 395.3 MB. Free memory was 340.0 MB in the beginning and 337.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-03 23:14:22,911 INFO L168 Benchmark]: RCFGBuilder took 154.40 ms. Allocated memory is still 395.3 MB. Free memory was 337.4 MB in the beginning and 322.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 5.3 GB. [2018-02-03 23:14:22,912 INFO L168 Benchmark]: TraceAbstraction took 556.62 ms. Allocated memory was 395.3 MB in the beginning and 590.3 MB in the end (delta: 195.0 MB). Free memory was 322.5 MB in the beginning and 544.7 MB in the end (delta: -222.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-03 23:14:22,913 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 395.3 MB. Free memory is still 356.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 148.18 ms. Allocated memory is still 395.3 MB. Free memory was 349.4 MB in the beginning and 340.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.37 ms. Allocated memory is still 395.3 MB. Free memory was 340.0 MB in the beginning and 337.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 154.40 ms. Allocated memory is still 395.3 MB. Free memory was 337.4 MB in the beginning and 322.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 556.62 ms. Allocated memory was 395.3 MB in the beginning and 590.3 MB in the end (delta: 195.0 MB). Free memory was 322.5 MB in the beginning and 544.7 MB in the end (delta: -222.2 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] FCALL union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; VAL [data={40:0}] [L629] EXPR, FCALL malloc(37U) VAL [data={40:0}, malloc(37U)={45:0}] [L629] FCALL data.p0 = malloc(37U) VAL [data={40:0}, malloc(37U)={45:0}] [L630] FCALL data.str.p2 = &data VAL [data={40:0}, malloc(37U)={45:0}] [L631] FCALL data.str.c[1] = sizeof data.str.p1 VAL [data={40:0}, malloc(37U)={45:0}] [L632] return 0; VAL [\result=0, data={40:0}, malloc(37U)={45:0}] [L632] return 0; VAL [\result=0, malloc(37U)={45:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 7 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 11 SDslu, 16 SDs, 0 SdLazy, 23 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-03_23-14-22-919.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-03_23-14-22-919.csv Received shutdown request...