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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/memsafety/test-0232_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 21:01:46,054 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 21:01:46,056 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 21:01:46,067 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 21:01:46,067 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 21:01:46,068 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 21:01:46,069 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 21:01:46,070 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 21:01:46,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 21:01:46,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 21:01:46,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 21:01:46,074 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 21:01:46,074 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 21:01:46,075 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 21:01:46,076 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 21:01:46,077 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 21:01:46,079 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 21:01:46,080 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 21:01:46,081 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 21:01:46,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 21:01:46,084 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 21:01:46,087 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 21:01:46,088 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 21:01:46,088 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 21:01:46,097 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 21:01:46,098 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 21:01:46,098 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 21:01:46,098 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 21:01:46,099 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 21:01:46,099 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 21:01:46,099 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 21:01:46,099 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 21:01:46,099 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 21:01:46,099 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 21:01:46,100 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 21:01:46,100 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 21:01:46,100 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 21:01:46,100 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 21:01:46,100 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 21:01:46,100 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 21:01:46,101 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 21:01:46,101 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 21:01:46,101 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 21:01:46,101 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 21:01:46,101 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:01:46,101 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 21:01:46,101 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 21:01:46,102 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 21:01:46,102 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 21:01:46,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 21:01:46,140 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 21:01:46,142 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 21:01:46,143 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 21:01:46,143 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 21:01:46,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0232_false-valid-free.i [2018-02-02 21:01:46,272 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 21:01:46,273 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 21:01:46,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 21:01:46,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 21:01:46,278 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 21:01:46,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3643a13b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46, skipping insertion in model container [2018-02-02 21:01:46,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,291 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:01:46,316 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:01:46,403 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:01:46,417 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:01:46,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46 WrapperNode [2018-02-02 21:01:46,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 21:01:46,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 21:01:46,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 21:01:46,423 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 21:01:46,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (1/1) ... [2018-02-02 21:01:46,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 21:01:46,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 21:01:46,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 21:01:46,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 21:01:46,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:01:46,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 21:01:46,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 21:01:46,490 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-02-02 21:01:46,490 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 21:01:46,490 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 21:01:46,490 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 21:01:46,491 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 21:01:46,850 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 21:01:46,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:01:46 BoogieIcfgContainer [2018-02-02 21:01:46,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 21:01:46,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 21:01:46,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 21:01:46,854 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 21:01:46,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:01:46" (1/3) ... [2018-02-02 21:01:46,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72da0b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:01:46, skipping insertion in model container [2018-02-02 21:01:46,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:46" (2/3) ... [2018-02-02 21:01:46,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72da0b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:01:46, skipping insertion in model container [2018-02-02 21:01:46,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:01:46" (3/3) ... [2018-02-02 21:01:46,857 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0232_false-valid-free.i [2018-02-02 21:01:46,863 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 21:01:46,867 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 53 error locations. [2018-02-02 21:01:46,897 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 21:01:46,897 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 21:01:46,898 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 21:01:46,898 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 21:01:46,898 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 21:01:46,898 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 21:01:46,898 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 21:01:46,898 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 21:01:46,899 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 21:01:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-02-02 21:01:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-02 21:01:46,919 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:01:46,920 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:01:46,920 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr38EnsuresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-02-02 21:01:46,924 INFO L82 PathProgramCache]: Analyzing trace with hash 842410072, now seen corresponding path program 1 times [2018-02-02 21:01:46,926 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:01:46,926 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:01:46,968 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:46,968 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:01:46,968 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:01:47,005 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:01:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:01:47,047 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:01:47,047 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:01:47,049 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:01:47,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:01:47,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:01:47,062 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 3 states. [2018-02-02 21:01:47,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:01:47,264 INFO L93 Difference]: Finished difference Result 115 states and 120 transitions. [2018-02-02 21:01:47,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:01:47,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-02-02 21:01:47,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:01:47,272 INFO L225 Difference]: With dead ends: 115 [2018-02-02 21:01:47,272 INFO L226 Difference]: Without dead ends: 112 [2018-02-02 21:01:47,273 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:01:47,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-02-02 21:01:47,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2018-02-02 21:01:47,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-02-02 21:01:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 114 transitions. [2018-02-02 21:01:47,306 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 114 transitions. Word has length 7 [2018-02-02 21:01:47,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:01:47,306 INFO L432 AbstractCegarLoop]: Abstraction has 109 states and 114 transitions. [2018-02-02 21:01:47,306 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:01:47,306 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 114 transitions. [2018-02-02 21:01:47,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-02 21:01:47,307 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:01:47,307 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:01:47,307 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr38EnsuresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-02-02 21:01:47,307 INFO L82 PathProgramCache]: Analyzing trace with hash 842410073, now seen corresponding path program 1 times [2018-02-02 21:01:47,307 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:01:47,307 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:01:47,308 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:47,308 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:01:47,309 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:01:47,319 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:01:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:01:47,353 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:01:47,353 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:01:47,355 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:01:47,355 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:01:47,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:01:47,355 INFO L87 Difference]: Start difference. First operand 109 states and 114 transitions. Second operand 3 states. [2018-02-02 21:01:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:01:47,442 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2018-02-02 21:01:47,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:01:47,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-02-02 21:01:47,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:01:47,444 INFO L225 Difference]: With dead ends: 110 [2018-02-02 21:01:47,444 INFO L226 Difference]: Without dead ends: 110 [2018-02-02 21:01:47,445 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:01:47,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-02-02 21:01:47,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2018-02-02 21:01:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-02-02 21:01:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 113 transitions. [2018-02-02 21:01:47,451 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 113 transitions. Word has length 7 [2018-02-02 21:01:47,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:01:47,451 INFO L432 AbstractCegarLoop]: Abstraction has 108 states and 113 transitions. [2018-02-02 21:01:47,451 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:01:47,451 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 113 transitions. [2018-02-02 21:01:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 21:01:47,452 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:01:47,452 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:01:47,452 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr38EnsuresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-02-02 21:01:47,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1112643303, now seen corresponding path program 1 times [2018-02-02 21:01:47,452 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:01:47,452 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:01:47,453 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:47,453 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:01:47,453 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:01:47,465 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:01:47,472 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) 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.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) 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.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-02 21:01:47,475 INFO L168 Benchmark]: Toolchain (without parser) took 1202.57 ms. Allocated memory was 400.6 MB in the beginning and 610.3 MB in the end (delta: 209.7 MB). Free memory was 357.4 MB in the beginning and 545.1 MB in the end (delta: -187.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 5.3 GB. [2018-02-02 21:01:47,476 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 400.6 MB. Free memory is still 364.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:01:47,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.40 ms. Allocated memory is still 400.6 MB. Free memory was 357.4 MB in the beginning and 346.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 21:01:47,477 INFO L168 Benchmark]: Boogie Preprocessor took 26.18 ms. Allocated memory is still 400.6 MB. Free memory was 346.9 MB in the beginning and 345.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:01:47,477 INFO L168 Benchmark]: RCFGBuilder took 401.32 ms. Allocated memory is still 400.6 MB. Free memory was 345.5 MB in the beginning and 313.0 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. [2018-02-02 21:01:47,478 INFO L168 Benchmark]: TraceAbstraction took 623.01 ms. Allocated memory was 400.6 MB in the beginning and 610.3 MB in the end (delta: 209.7 MB). Free memory was 313.0 MB in the beginning and 545.1 MB in the end (delta: -232.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:01:47,480 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 400.6 MB. Free memory is still 364.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 149.40 ms. Allocated memory is still 400.6 MB. Free memory was 357.4 MB in the beginning and 346.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.18 ms. Allocated memory is still 400.6 MB. Free memory was 346.9 MB in the beginning and 345.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 401.32 ms. Allocated memory is still 400.6 MB. Free memory was 345.5 MB in the beginning and 313.0 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 623.01 ms. Allocated memory was 400.6 MB in the beginning and 610.3 MB in the end (delta: 209.7 MB). Free memory was 313.0 MB in the beginning and 545.1 MB in the end (delta: -232.2 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) 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/test-0232_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_21-01-47-489.csv Received shutdown request...