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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/list-properties/list_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:33:58,415 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:33:58,441 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:33:58,453 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:33:58,453 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:33:58,454 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:33:58,455 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:33:58,457 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:33:58,459 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:33:58,459 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:33:58,460 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:33:58,460 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:33:58,461 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:33:58,461 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:33:58,462 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:33:58,465 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:33:58,467 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:33:58,469 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:33:58,470 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:33:58,471 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:33:58,473 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 12:33:58,474 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 12:33:58,474 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 12:33:58,475 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 12:33:58,475 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 12:33:58,477 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 12:33:58,477 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 12:33:58,477 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 12:33:58,478 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 12:33:58,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:33:58,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:33:58,479 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf [2018-01-24 12:33:58,489 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:33:58,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:33:58,490 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:33:58,490 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:33:58,490 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:33:58,490 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:33:58,491 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:33:58,491 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:33:58,491 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:33:58,492 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:33:58,492 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:33:58,492 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:33:58,492 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:33:58,492 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:33:58,493 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:33:58,493 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:33:58,493 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:33:58,493 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:33:58,493 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:33:58,494 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:33:58,494 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:33:58,494 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:33:58,494 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:33:58,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:33:58,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:33:58,495 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:33:58,495 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:33:58,495 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:33:58,495 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 12:33:58,496 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:33:58,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:33:58,496 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:33:58,497 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:33:58,497 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:33:58,531 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:33:58,544 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:33:58,548 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:33:58,549 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:33:58,550 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:33:58,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_true-unreach-call_false-valid-memtrack.i [2018-01-24 12:33:58,711 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:33:58,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:33:58,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:33:58,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:33:58,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:33:58,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e47ad9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58, skipping insertion in model container [2018-01-24 12:33:58,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,749 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:33:58,790 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:33:58,903 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:33:58,922 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:33:58,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58 WrapperNode [2018-01-24 12:33:58,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:33:58,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:33:58,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:33:58,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:33:58,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (1/1) ... [2018-01-24 12:33:58,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:33:58,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:33:58,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:33:58,968 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:33:58,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (1/1) ... No working directory specified, using /storage/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 [2018-01-24 12:33:59,018 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:33:59,018 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:33:59,018 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-01-24 12:33:59,018 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:33:59,018 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 12:33:59,018 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 12:33:59,018 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:33:59,019 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:33:59,020 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:33:59,340 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:33:59,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:33:59 BoogieIcfgContainer [2018-01-24 12:33:59,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:33:59,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:33:59,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:33:59,343 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:33:59,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:33:58" (1/3) ... [2018-01-24 12:33:59,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abfc07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:33:59, skipping insertion in model container [2018-01-24 12:33:59,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:33:58" (2/3) ... [2018-01-24 12:33:59,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abfc07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:33:59, skipping insertion in model container [2018-01-24 12:33:59,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:33:59" (3/3) ... [2018-01-24 12:33:59,347 INFO L105 eAbstractionObserver]: Analyzing ICFG list_true-unreach-call_false-valid-memtrack.i [2018-01-24 12:33:59,355 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:33:59,362 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-01-24 12:33:59,413 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:33:59,414 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:33:59,414 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:33:59,414 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:33:59,414 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:33:59,414 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:33:59,414 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:33:59,415 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:33:59,415 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:33:59,434 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-01-24 12:33:59,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-24 12:33:59,440 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:33:59,441 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:33:59,441 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:33:59,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1577909781, now seen corresponding path program 1 times [2018-01-24 12:33:59,446 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:33:59,446 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:33:59,486 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:33:59,487 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:33:59,487 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:33:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:33:59,528 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:33:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:33:59,564 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:33:59,565 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:33:59,566 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-24 12:33:59,576 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-24 12:33:59,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 12:33:59,579 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 2 states. [2018-01-24 12:33:59,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:33:59,605 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2018-01-24 12:33:59,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-24 12:33:59,606 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-01-24 12:33:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:33:59,614 INFO L225 Difference]: With dead ends: 131 [2018-01-24 12:33:59,615 INFO L226 Difference]: Without dead ends: 70 [2018-01-24 12:33:59,701 INFO L525 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 [2018-01-24 12:33:59,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-01-24 12:33:59,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-01-24 12:33:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-01-24 12:33:59,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2018-01-24 12:33:59,738 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 12 [2018-01-24 12:33:59,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:33:59,738 INFO L432 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2018-01-24 12:33:59,738 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-24 12:33:59,738 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2018-01-24 12:33:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-24 12:33:59,739 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:33:59,739 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:33:59,739 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:33:59,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1669671355, now seen corresponding path program 1 times [2018-01-24 12:33:59,739 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:33:59,739 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:33:59,740 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:33:59,741 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:33:59,741 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:33:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:33:59,757 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:33:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:33:59,825 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:33:59,825 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:33:59,826 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:33:59,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:33:59,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:33:59,828 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 5 states. [2018-01-24 12:34:00,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:00,041 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2018-01-24 12:34:00,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:34:00,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-01-24 12:34:00,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:00,043 INFO L225 Difference]: With dead ends: 93 [2018-01-24 12:34:00,043 INFO L226 Difference]: Without dead ends: 81 [2018-01-24 12:34:00,044 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:34:00,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-01-24 12:34:00,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2018-01-24 12:34:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-01-24 12:34:00,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2018-01-24 12:34:00,054 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 13 [2018-01-24 12:34:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:00,054 INFO L432 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2018-01-24 12:34:00,054 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:00,054 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2018-01-24 12:34:00,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-24 12:34:00,055 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:00,055 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:00,055 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:34:00,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1669671356, now seen corresponding path program 1 times [2018-01-24 12:34:00,056 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:00,056 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:00,057 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:00,057 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:00,057 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:00,070 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:00,152 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:00,152 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:34:00,152 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:00,152 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:00,153 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:00,153 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 5 states. [2018-01-24 12:34:00,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:00,361 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2018-01-24 12:34:00,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:34:00,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-01-24 12:34:00,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:00,363 INFO L225 Difference]: With dead ends: 114 [2018-01-24 12:34:00,363 INFO L226 Difference]: Without dead ends: 102 [2018-01-24 12:34:00,363 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:34:00,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-01-24 12:34:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 93. [2018-01-24 12:34:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-01-24 12:34:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2018-01-24 12:34:00,373 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 13 [2018-01-24 12:34:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:00,374 INFO L432 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2018-01-24 12:34:00,374 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:00,374 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2018-01-24 12:34:00,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 12:34:00,375 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:00,375 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:00,376 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:34:00,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1462598724, now seen corresponding path program 1 times [2018-01-24 12:34:00,376 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:00,376 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:00,377 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:00,377 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:00,378 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:00,397 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:00,501 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:00,501 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:34:00,501 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:34:00,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:34:00,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:34:00,502 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand 7 states. [2018-01-24 12:34:00,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:00,817 INFO L93 Difference]: Finished difference Result 192 states and 207 transitions. [2018-01-24 12:34:00,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:34:00,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-01-24 12:34:00,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:00,819 INFO L225 Difference]: With dead ends: 192 [2018-01-24 12:34:00,819 INFO L226 Difference]: Without dead ends: 189 [2018-01-24 12:34:00,819 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-01-24 12:34:00,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-01-24 12:34:00,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 97. [2018-01-24 12:34:00,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-01-24 12:34:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2018-01-24 12:34:00,828 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 23 [2018-01-24 12:34:00,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:00,828 INFO L432 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2018-01-24 12:34:00,828 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:34:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2018-01-24 12:34:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 12:34:00,829 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:00,829 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:00,829 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:34:00,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1462598725, now seen corresponding path program 1 times [2018-01-24 12:34:00,829 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:00,829 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:00,830 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:00,830 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:00,830 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:00,847 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:00,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:00,958 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:00,959 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:34:00,959 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:34:00,959 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:34:00,959 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:34:00,960 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand 7 states. [2018-01-24 12:34:01,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:01,341 INFO L93 Difference]: Finished difference Result 193 states and 211 transitions. [2018-01-24 12:34:01,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 12:34:01,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-01-24 12:34:01,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:01,343 INFO L225 Difference]: With dead ends: 193 [2018-01-24 12:34:01,343 INFO L226 Difference]: Without dead ends: 186 [2018-01-24 12:34:01,343 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-01-24 12:34:01,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-01-24 12:34:01,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 80. [2018-01-24 12:34:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-01-24 12:34:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2018-01-24 12:34:01,353 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 23 [2018-01-24 12:34:01,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:01,353 INFO L432 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2018-01-24 12:34:01,353 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:34:01,353 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2018-01-24 12:34:01,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 12:34:01,354 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:01,355 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:01,355 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:34:01,355 INFO L82 PathProgramCache]: Analyzing trace with hash 919312261, now seen corresponding path program 1 times [2018-01-24 12:34:01,355 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:01,355 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:01,356 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:01,357 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:01,357 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:01,367 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:01,409 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:01,409 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:34:01,410 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:34:01,410 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:34:01,410 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:34:01,410 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 6 states. [2018-01-24 12:34:01,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:01,512 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2018-01-24 12:34:01,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:34:01,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-24 12:34:01,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:01,513 INFO L225 Difference]: With dead ends: 160 [2018-01-24 12:34:01,513 INFO L226 Difference]: Without dead ends: 135 [2018-01-24 12:34:01,513 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:34:01,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-01-24 12:34:01,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 91. [2018-01-24 12:34:01,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-01-24 12:34:01,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2018-01-24 12:34:01,521 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 24 [2018-01-24 12:34:01,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:01,521 INFO L432 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2018-01-24 12:34:01,521 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:34:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2018-01-24 12:34:01,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 12:34:01,522 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:01,522 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:01,522 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:34:01,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1842256062, now seen corresponding path program 1 times [2018-01-24 12:34:01,522 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:01,522 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:01,523 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:01,523 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:01,523 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:01,534 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:01,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:01,600 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:01,600 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:34:01,601 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:34:01,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:34:01,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:34:01,601 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 7 states. [2018-01-24 12:34:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:01,756 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2018-01-24 12:34:01,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 12:34:01,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-01-24 12:34:01,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:01,758 INFO L225 Difference]: With dead ends: 127 [2018-01-24 12:34:01,758 INFO L226 Difference]: Without dead ends: 125 [2018-01-24 12:34:01,759 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-01-24 12:34:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-01-24 12:34:01,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 89. [2018-01-24 12:34:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-01-24 12:34:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2018-01-24 12:34:01,769 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 26 [2018-01-24 12:34:01,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:01,769 INFO L432 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2018-01-24 12:34:01,769 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:34:01,769 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2018-01-24 12:34:01,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 12:34:01,770 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:01,771 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:01,771 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:34:01,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1842256063, now seen corresponding path program 1 times [2018-01-24 12:34:01,771 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:01,771 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:01,772 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:01,772 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:01,772 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:01,784 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:01,867 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:01,867 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:34:01,867 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:34:01,868 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:34:01,868 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:34:01,868 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 7 states. [2018-01-24 12:34:02,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:02,067 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2018-01-24 12:34:02,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:34:02,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-01-24 12:34:02,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:02,068 INFO L225 Difference]: With dead ends: 124 [2018-01-24 12:34:02,068 INFO L226 Difference]: Without dead ends: 120 [2018-01-24 12:34:02,069 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-01-24 12:34:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-01-24 12:34:02,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 75. [2018-01-24 12:34:02,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-01-24 12:34:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2018-01-24 12:34:02,076 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 26 [2018-01-24 12:34:02,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:02,077 INFO L432 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2018-01-24 12:34:02,077 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:34:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2018-01-24 12:34:02,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 12:34:02,078 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:02,078 INFO L322 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] [2018-01-24 12:34:02,078 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 12:34:02,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1313779944, now seen corresponding path program 1 times [2018-01-24 12:34:02,079 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:02,079 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:02,080 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:02,080 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:02,080 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 12:34:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 12:34:02,121 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 12:34:02,134 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 12:34:02,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 12:34:02 BoogieIcfgContainer [2018-01-24 12:34:02,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 12:34:02,151 INFO L168 Benchmark]: Toolchain (without parser) took 3439.79 ms. Allocated memory was 308.8 MB in the beginning and 461.9 MB in the end (delta: 153.1 MB). Free memory was 268.8 MB in the beginning and 425.2 MB in the end (delta: -156.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:34:02,152 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 308.8 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:34:02,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.93 ms. Allocated memory is still 308.8 MB. Free memory was 267.8 MB in the beginning and 256.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. [2018-01-24 12:34:02,153 INFO L168 Benchmark]: Boogie Preprocessor took 36.95 ms. Allocated memory is still 308.8 MB. Free memory was 256.8 MB in the beginning and 255.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-24 12:34:02,153 INFO L168 Benchmark]: RCFGBuilder took 373.62 ms. Allocated memory is still 308.8 MB. Free memory was 255.8 MB in the beginning and 231.9 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-01-24 12:34:02,154 INFO L168 Benchmark]: TraceAbstraction took 2809.15 ms. Allocated memory was 308.8 MB in the beginning and 461.9 MB in the end (delta: 153.1 MB). Free memory was 231.9 MB in the beginning and 425.2 MB in the end (delta: -193.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:34:02,156 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 308.8 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 210.93 ms. Allocated memory is still 308.8 MB. Free memory was 267.8 MB in the beginning and 256.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.95 ms. Allocated memory is still 308.8 MB. Free memory was 256.8 MB in the beginning and 255.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 373.62 ms. Allocated memory is still 308.8 MB. Free memory was 255.8 MB in the beginning and 231.9 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2809.15 ms. Allocated memory was 308.8 MB in the beginning and 461.9 MB in the end (delta: 153.1 MB). Free memory was 231.9 MB in the beginning and 425.2 MB in the end (delta: -193.3 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 626]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 626. Possible FailurePath: [L627] EXPR, FCALL malloc(sizeof(struct node)) VAL [malloc(sizeof(struct node))={10:0}] [L627] List a = (List) malloc(sizeof(struct node)); VAL [a={10:0}, malloc(sizeof(struct node))={10:0}] [L628] COND FALSE !(a == 0) VAL [a={10:0}, malloc(sizeof(struct node))={10:0}] [L629] List t; [L630] List p = a; VAL [a={10:0}, malloc(sizeof(struct node))={10:0}, p={10:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L638] COND FALSE !(__VERIFIER_nondet_int()) [L645] FCALL p->h = 3 VAL [a={10:0}, malloc(sizeof(struct node))={10:0}, p={10:0}] [L646] p = a VAL [a={10:0}, malloc(sizeof(struct node))={10:0}, p={10:0}] [L647] EXPR, FCALL p->h VAL [a={10:0}, malloc(sizeof(struct node))={10:0}, p={10:0}, p->h=3] [L647] COND FALSE !(p->h == 1) [L649] EXPR, FCALL p->h VAL [a={10:0}, malloc(sizeof(struct node))={10:0}, p={10:0}, p->h=3] [L649] COND FALSE !(p->h == 2) [L651] EXPR, FCALL p->h VAL [a={10:0}, malloc(sizeof(struct node))={10:0}, p={10:0}, p->h=3] [L651] COND FALSE !(p->h != 3) [L653] return 0; VAL [\result=0, a={10:0}, malloc(sizeof(struct node))={10:0}, p={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 81 locations, 25 error locations. UNSAFE Result, 2.7s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 464 SDtfs, 984 SDslu, 997 SDs, 0 SdLazy, 1156 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 337 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 11512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-34-02-162.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_12-34-02-162.csv Received shutdown request...