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/list-ext-properties/test-0504_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 21:04:30,512 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 21:04:30,513 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 21:04:30,527 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 21:04:30,527 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 21:04:30,528 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 21:04:30,529 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 21:04:30,530 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 21:04:30,532 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 21:04:30,532 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 21:04:30,533 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 21:04:30,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 21:04:30,534 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 21:04:30,535 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 21:04:30,535 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 21:04:30,537 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 21:04:30,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 21:04:30,540 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 21:04:30,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 21:04:30,542 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 21:04:30,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 21:04:30,549 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 21:04:30,558 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 21:04:30,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 21:04:30,559 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 21:04:30,559 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 21:04:30,559 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 21:04:30,560 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 21:04:30,560 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 21:04:30,560 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 21:04:30,560 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 21:04:30,560 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 21:04:30,560 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 21:04:30,560 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 21:04:30,560 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 21:04:30,561 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 21:04:30,561 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 21:04:30,561 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 21:04:30,561 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 21:04:30,561 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 21:04:30,561 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 21:04:30,561 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 21:04:30,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:04:30,562 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 21:04:30,562 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 21:04:30,562 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 21:04:30,562 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 21:04:30,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 21:04:30,618 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 21:04:30,620 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 21:04:30,621 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 21:04:30,622 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 21:04:30,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0504_1_true-valid-memsafety.i [2018-02-02 21:04:30,735 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 21:04:30,736 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 21:04:30,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 21:04:30,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 21:04:30,741 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 21:04:30,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bada75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30, skipping insertion in model container [2018-02-02 21:04:30,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,756 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:04:30,783 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:04:30,877 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:04:30,892 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:04:30,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30 WrapperNode [2018-02-02 21:04:30,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 21:04:30,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 21:04:30,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 21:04:30,901 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 21:04:30,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (1/1) ... [2018-02-02 21:04:30,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 21:04:30,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 21:04:30,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 21:04:30,933 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 21:04:30,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (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 21:04:30,969 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 21:04:30,969 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 21:04:30,969 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 21:04:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 21:04:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 21:04:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 21:04:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 21:04:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 21:04:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 21:04:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 21:04:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 21:04:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 21:04:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-02 21:04:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 21:04:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 21:04:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 21:04:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 21:04:31,246 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 21:04:31,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:04:31 BoogieIcfgContainer [2018-02-02 21:04:31,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 21:04:31,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 21:04:31,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 21:04:31,249 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 21:04:31,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:04:30" (1/3) ... [2018-02-02 21:04:31,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c16d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:04:31, skipping insertion in model container [2018-02-02 21:04:31,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:04:30" (2/3) ... [2018-02-02 21:04:31,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c16d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:04:31, skipping insertion in model container [2018-02-02 21:04:31,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:04:31" (3/3) ... [2018-02-02 21:04:31,251 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0504_1_true-valid-memsafety.i [2018-02-02 21:04:31,256 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 21:04:31,261 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 41 error locations. [2018-02-02 21:04:31,282 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 21:04:31,282 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 21:04:31,283 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 21:04:31,283 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 21:04:31,283 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 21:04:31,283 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 21:04:31,283 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 21:04:31,283 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 21:04:31,284 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 21:04:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2018-02-02 21:04:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-02 21:04:31,301 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:04:31,301 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:04:31,302 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-02 21:04:31,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1548810554, now seen corresponding path program 1 times [2018-02-02 21:04:31,305 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:04:31,306 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:04:31,334 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:31,334 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:04:31,334 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:04:31,367 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:04:31,385 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 21:04:31,387 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:04:31,387 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:04:31,388 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-02 21:04:31,395 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-02 21:04:31,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 21:04:31,397 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 2 states. [2018-02-02 21:04:31,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:04:31,413 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2018-02-02 21:04:31,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-02 21:04:31,471 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-02-02 21:04:31,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:04:31,479 INFO L225 Difference]: With dead ends: 101 [2018-02-02 21:04:31,479 INFO L226 Difference]: Without dead ends: 98 [2018-02-02 21:04:31,481 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 21:04:31,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-02-02 21:04:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-02-02 21:04:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-02-02 21:04:31,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2018-02-02 21:04:31,509 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 10 [2018-02-02 21:04:31,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:04:31,509 INFO L432 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2018-02-02 21:04:31,510 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-02 21:04:31,510 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2018-02-02 21:04:31,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 21:04:31,510 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:04:31,510 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:04:31,510 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-02 21:04:31,511 INFO L82 PathProgramCache]: Analyzing trace with hash -2085004617, now seen corresponding path program 1 times [2018-02-02 21:04:31,511 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:04:31,511 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:04:31,512 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:31,512 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:04:31,512 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:04:31,528 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:04:31,576 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 21:04:31,576 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:04:31,576 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:04:31,577 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:04:31,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:04:31,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:04:31,578 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand 3 states. [2018-02-02 21:04:31,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:04:31,595 INFO L93 Difference]: Finished difference Result 107 states and 115 transitions. [2018-02-02 21:04:31,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:04:31,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-02-02 21:04:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:04:31,596 INFO L225 Difference]: With dead ends: 107 [2018-02-02 21:04:31,596 INFO L226 Difference]: Without dead ends: 107 [2018-02-02 21:04:31,598 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:04:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-02-02 21:04:31,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2018-02-02 21:04:31,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-02-02 21:04:31,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2018-02-02 21:04:31,603 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 13 [2018-02-02 21:04:31,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:04:31,604 INFO L432 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2018-02-02 21:04:31,604 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:04:31,604 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2018-02-02 21:04:31,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 21:04:31,604 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:04:31,604 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:04:31,604 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-02 21:04:31,605 INFO L82 PathProgramCache]: Analyzing trace with hash -211715870, now seen corresponding path program 1 times [2018-02-02 21:04:31,605 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:04:31,605 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:04:31,606 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:31,606 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:04:31,606 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:04:31,620 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:04:31,647 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 21:04:31,647 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:04:31,647 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:04:31,648 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:04:31,648 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:04:31,648 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:04:31,648 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand 4 states. [2018-02-02 21:04:31,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:04:31,792 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2018-02-02 21:04:31,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:04:31,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-02 21:04:31,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:04:31,796 INFO L225 Difference]: With dead ends: 127 [2018-02-02 21:04:31,796 INFO L226 Difference]: Without dead ends: 127 [2018-02-02 21:04:31,796 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:04:31,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-02-02 21:04:31,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 96. [2018-02-02 21:04:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-02-02 21:04:31,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2018-02-02 21:04:31,803 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 14 [2018-02-02 21:04:31,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:04:31,804 INFO L432 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2018-02-02 21:04:31,804 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:04:31,804 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2018-02-02 21:04:31,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 21:04:31,805 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:04:31,805 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:04:31,805 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-02 21:04:31,805 INFO L82 PathProgramCache]: Analyzing trace with hash -211715869, now seen corresponding path program 1 times [2018-02-02 21:04:31,805 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:04:31,805 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:04:31,806 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:31,806 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:04:31,806 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:04:31,817 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:04:31,880 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 21:04:31,880 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:04:31,880 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:04:31,880 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:04:31,880 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:04:31,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:04:31,880 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand 4 states. [2018-02-02 21:04:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:04:31,992 INFO L93 Difference]: Finished difference Result 138 states and 154 transitions. [2018-02-02 21:04:31,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:04:31,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-02 21:04:31,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:04:31,994 INFO L225 Difference]: With dead ends: 138 [2018-02-02 21:04:31,994 INFO L226 Difference]: Without dead ends: 138 [2018-02-02 21:04:31,994 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:04:31,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-02-02 21:04:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 99. [2018-02-02 21:04:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-02-02 21:04:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2018-02-02 21:04:32,002 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 14 [2018-02-02 21:04:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:04:32,002 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2018-02-02 21:04:32,002 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:04:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2018-02-02 21:04:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 21:04:32,003 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:04:32,003 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:04:32,003 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-02 21:04:32,003 INFO L82 PathProgramCache]: Analyzing trace with hash -210634142, now seen corresponding path program 1 times [2018-02-02 21:04:32,004 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:04:32,004 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:04:32,004 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:32,005 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:04:32,005 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:04:32,012 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:04:32,025 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 21:04:32,025 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:04:32,026 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:04:32,026 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:04:32,026 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:04:32,026 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:04:32,026 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 3 states. [2018-02-02 21:04:32,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:04:32,068 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2018-02-02 21:04:32,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:04:32,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-02-02 21:04:32,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:04:32,069 INFO L225 Difference]: With dead ends: 102 [2018-02-02 21:04:32,069 INFO L226 Difference]: Without dead ends: 98 [2018-02-02 21:04:32,069 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 21:04:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-02-02 21:04:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2018-02-02 21:04:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-02-02 21:04:32,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2018-02-02 21:04:32,074 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 14 [2018-02-02 21:04:32,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:04:32,074 INFO L432 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2018-02-02 21:04:32,074 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:04:32,075 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2018-02-02 21:04:32,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-02 21:04:32,075 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:04:32,075 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:04:32,075 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-02 21:04:32,076 INFO L82 PathProgramCache]: Analyzing trace with hash 479661366, now seen corresponding path program 1 times [2018-02-02 21:04:32,076 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:04:32,076 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:04:32,077 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:32,077 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:04:32,077 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:04:32,094 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:04:32,137 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 21:04:32,138 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:04:32,138 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:04:32,138 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:04:32,139 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:04:32,139 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:04:32,139 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand 3 states. [2018-02-02 21:04:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:04:32,150 INFO L93 Difference]: Finished difference Result 143 states and 160 transitions. [2018-02-02 21:04:32,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:04:32,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-02-02 21:04:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:04:32,152 INFO L225 Difference]: With dead ends: 143 [2018-02-02 21:04:32,152 INFO L226 Difference]: Without dead ends: 143 [2018-02-02 21:04:32,152 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:04:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-02-02 21:04:32,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 125. [2018-02-02 21:04:32,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-02 21:04:32,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 152 transitions. [2018-02-02 21:04:32,158 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 152 transitions. Word has length 26 [2018-02-02 21:04:32,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:04:32,158 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 152 transitions. [2018-02-02 21:04:32,158 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:04:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 152 transitions. [2018-02-02 21:04:32,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-02 21:04:32,159 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:04:32,159 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:04:32,159 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr40EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation]=== [2018-02-02 21:04:32,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1985366289, now seen corresponding path program 1 times [2018-02-02 21:04:32,160 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:04:32,160 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:04:32,161 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:32,161 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:04:32,161 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:04:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:04:32,182 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:04:32,193 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 21:04:32,196 INFO L168 Benchmark]: Toolchain (without parser) took 1461.16 ms. Allocated memory was 397.9 MB in the beginning and 606.1 MB in the end (delta: 208.1 MB). Free memory was 354.8 MB in the beginning and 487.8 MB in the end (delta: -133.0 MB). Peak memory consumption was 75.2 MB. Max. memory is 5.3 GB. [2018-02-02 21:04:32,198 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 397.9 MB. Free memory is still 361.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:04:32,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.01 ms. Allocated memory is still 397.9 MB. Free memory was 354.8 MB in the beginning and 344.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 21:04:32,198 INFO L168 Benchmark]: Boogie Preprocessor took 31.34 ms. Allocated memory is still 397.9 MB. Free memory was 344.2 MB in the beginning and 341.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 21:04:32,198 INFO L168 Benchmark]: RCFGBuilder took 314.20 ms. Allocated memory is still 397.9 MB. Free memory was 341.6 MB in the beginning and 310.3 MB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:04:32,199 INFO L168 Benchmark]: TraceAbstraction took 948.45 ms. Allocated memory was 397.9 MB in the beginning and 606.1 MB in the end (delta: 208.1 MB). Free memory was 310.3 MB in the beginning and 487.8 MB in the end (delta: -177.5 MB). Peak memory consumption was 30.6 MB. Max. memory is 5.3 GB. [2018-02-02 21:04:32,200 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 397.9 MB. Free memory is still 361.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 164.01 ms. Allocated memory is still 397.9 MB. Free memory was 354.8 MB in the beginning and 344.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.34 ms. Allocated memory is still 397.9 MB. Free memory was 344.2 MB in the beginning and 341.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 314.20 ms. Allocated memory is still 397.9 MB. Free memory was 341.6 MB in the beginning and 310.3 MB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 948.45 ms. Allocated memory was 397.9 MB in the beginning and 606.1 MB in the end (delta: 208.1 MB). Free memory was 310.3 MB in the beginning and 487.8 MB in the end (delta: -177.5 MB). Peak memory consumption was 30.6 MB. 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-0504_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_21-04-32-206.csv Received shutdown request...