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_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/memory-alloca/c.03-alloca_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 23:56:37,409 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 23:56:37,411 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 23:56:37,424 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 23:56:37,424 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 23:56:37,425 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 23:56:37,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 23:56:37,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 23:56:37,428 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 23:56:37,429 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 23:56:37,429 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 23:56:37,429 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 23:56:37,430 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 23:56:37,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 23:56:37,431 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 23:56:37,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 23:56:37,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 23:56:37,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 23:56:37,439 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 23:56:37,440 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 23:56:37,442 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 23:56:37,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 23:56:37,443 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 23:56:37,444 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 23:56:37,444 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 23:56:37,445 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 23:56:37,446 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 23:56:37,446 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 23:56:37,446 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 23:56:37,447 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 23:56:37,447 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 23:56:37,447 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-24 23:56:37,457 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 23:56:37,457 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 23:56:37,458 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 23:56:37,458 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 23:56:37,458 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 23:56:37,458 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 23:56:37,458 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 23:56:37,459 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 23:56:37,459 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 23:56:37,459 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 23:56:37,459 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 23:56:37,460 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 23:56:37,460 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 23:56:37,460 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 23:56:37,460 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 23:56:37,460 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 23:56:37,461 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 23:56:37,461 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 23:56:37,461 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 23:56:37,461 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 23:56:37,461 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 23:56:37,462 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 23:56:37,462 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 23:56:37,462 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 23:56:37,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 23:56:37,462 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 23:56:37,463 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 23:56:37,463 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 23:56:37,463 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 23:56:37,463 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 23:56:37,463 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 23:56:37,464 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 23:56:37,464 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 23:56:37,464 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 23:56:37,465 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 23:56:37,465 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 23:56:37,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 23:56:37,507 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 23:56:37,510 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 23:56:37,511 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 23:56:37,511 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 23:56:37,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memory-alloca/c.03-alloca_true-valid-memsafety.i [2018-01-24 23:56:37,653 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 23:56:37,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 23:56:37,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 23:56:37,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 23:56:37,667 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 23:56:37,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5054e5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37, skipping insertion in model container [2018-01-24 23:56:37,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,688 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:56:37,725 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:56:37,829 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:56:37,843 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:56:37,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37 WrapperNode [2018-01-24 23:56:37,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 23:56:37,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 23:56:37,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 23:56:37,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 23:56:37,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (1/1) ... [2018-01-24 23:56:37,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 23:56:37,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 23:56:37,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 23:56:37,884 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 23:56:37,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (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 23:56:37,926 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 23:56:37,926 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 23:56:37,927 INFO L136 BoogieDeclarations]: Found implementation of procedure test_fun [2018-01-24 23:56:37,927 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 23:56:37,927 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 23:56:37,927 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 23:56:37,927 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 23:56:37,927 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 23:56:37,928 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 23:56:37,928 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 23:56:37,928 INFO L128 BoogieDeclarations]: Found specification of procedure test_fun [2018-01-24 23:56:37,928 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 23:56:37,928 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 23:56:37,928 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 23:56:38,240 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 23:56:38,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:56:38 BoogieIcfgContainer [2018-01-24 23:56:38,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 23:56:38,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 23:56:38,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 23:56:38,244 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 23:56:38,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 11:56:37" (1/3) ... [2018-01-24 23:56:38,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cde157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:56:38, skipping insertion in model container [2018-01-24 23:56:38,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:56:37" (2/3) ... [2018-01-24 23:56:38,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cde157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:56:38, skipping insertion in model container [2018-01-24 23:56:38,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:56:38" (3/3) ... [2018-01-24 23:56:38,248 INFO L105 eAbstractionObserver]: Analyzing ICFG c.03-alloca_true-valid-memsafety.i [2018-01-24 23:56:38,255 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 23:56:38,262 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2018-01-24 23:56:38,301 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 23:56:38,301 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 23:56:38,302 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 23:56:38,302 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 23:56:38,302 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 23:56:38,302 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 23:56:38,302 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 23:56:38,302 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 23:56:38,303 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 23:56:38,320 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2018-01-24 23:56:38,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 23:56:38,326 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:56:38,327 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:56:38,327 INFO L371 AbstractCegarLoop]: === Iteration 1 === [test_funErr27RequiresViolation, test_funErr17RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr9RequiresViolation, test_funErr14RequiresViolation, test_funErr22RequiresViolation, test_funErr2RequiresViolation, test_funErr19RequiresViolation, test_funErr6RequiresViolation, test_funErr20RequiresViolation, test_funErr29RequiresViolation, test_funErr16RequiresViolation, test_funErr3RequiresViolation, test_funErr26RequiresViolation, test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr23RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr11RequiresViolation, test_funErr24RequiresViolation, test_funErr15RequiresViolation, test_funErr25RequiresViolation, test_funErr28RequiresViolation, test_funErr1RequiresViolation, test_funErr18RequiresViolation, test_funErr21RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:56:38,331 INFO L82 PathProgramCache]: Analyzing trace with hash 2127926480, now seen corresponding path program 1 times [2018-01-24 23:56:38,333 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:56:38,374 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:38,375 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:56:38,375 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:38,375 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:56:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:56:38,446 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:56:38,620 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 23:56:38,622 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:56:38,623 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:56:38,623 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:56:38,626 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:56:38,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:56:38,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:56:38,709 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 4 states. [2018-01-24 23:56:38,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:56:38,870 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2018-01-24 23:56:38,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:56:38,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-01-24 23:56:38,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:56:38,884 INFO L225 Difference]: With dead ends: 104 [2018-01-24 23:56:38,885 INFO L226 Difference]: Without dead ends: 76 [2018-01-24 23:56:38,888 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:56:38,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-01-24 23:56:38,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-01-24 23:56:38,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-01-24 23:56:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2018-01-24 23:56:38,927 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 17 [2018-01-24 23:56:38,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:56:38,927 INFO L432 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2018-01-24 23:56:38,928 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:56:38,928 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2018-01-24 23:56:38,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 23:56:38,928 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:56:38,928 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:56:38,928 INFO L371 AbstractCegarLoop]: === Iteration 2 === [test_funErr27RequiresViolation, test_funErr17RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr9RequiresViolation, test_funErr14RequiresViolation, test_funErr22RequiresViolation, test_funErr2RequiresViolation, test_funErr19RequiresViolation, test_funErr6RequiresViolation, test_funErr20RequiresViolation, test_funErr29RequiresViolation, test_funErr16RequiresViolation, test_funErr3RequiresViolation, test_funErr26RequiresViolation, test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr23RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr11RequiresViolation, test_funErr24RequiresViolation, test_funErr15RequiresViolation, test_funErr25RequiresViolation, test_funErr28RequiresViolation, test_funErr1RequiresViolation, test_funErr18RequiresViolation, test_funErr21RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:56:38,929 INFO L82 PathProgramCache]: Analyzing trace with hash 2127926481, now seen corresponding path program 1 times [2018-01-24 23:56:38,929 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:56:38,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:38,930 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:56:38,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:38,930 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:56:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:56:38,957 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:56:39,075 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 23:56:39,075 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:56:39,075 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 23:56:39,075 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:56:39,077 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:56:39,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:56:39,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:56:39,078 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 5 states. [2018-01-24 23:56:39,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:56:39,249 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2018-01-24 23:56:39,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:56:39,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-01-24 23:56:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:56:39,251 INFO L225 Difference]: With dead ends: 76 [2018-01-24 23:56:39,251 INFO L226 Difference]: Without dead ends: 71 [2018-01-24 23:56:39,252 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-01-24 23:56:39,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-01-24 23:56:39,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-01-24 23:56:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-01-24 23:56:39,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2018-01-24 23:56:39,260 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 17 [2018-01-24 23:56:39,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:56:39,260 INFO L432 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2018-01-24 23:56:39,260 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:56:39,261 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2018-01-24 23:56:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 23:56:39,261 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:56:39,261 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:56:39,262 INFO L371 AbstractCegarLoop]: === Iteration 3 === [test_funErr27RequiresViolation, test_funErr17RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr9RequiresViolation, test_funErr14RequiresViolation, test_funErr22RequiresViolation, test_funErr2RequiresViolation, test_funErr19RequiresViolation, test_funErr6RequiresViolation, test_funErr20RequiresViolation, test_funErr29RequiresViolation, test_funErr16RequiresViolation, test_funErr3RequiresViolation, test_funErr26RequiresViolation, test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr23RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr11RequiresViolation, test_funErr24RequiresViolation, test_funErr15RequiresViolation, test_funErr25RequiresViolation, test_funErr28RequiresViolation, test_funErr1RequiresViolation, test_funErr18RequiresViolation, test_funErr21RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:56:39,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1541211425, now seen corresponding path program 1 times [2018-01-24 23:56:39,262 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:56:39,263 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:39,263 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:56:39,263 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:39,264 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:56:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:56:39,284 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:56:39,359 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 23:56:39,360 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:56:39,360 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 23:56:39,360 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:56:39,360 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:56:39,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:56:39,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:56:39,361 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 5 states. [2018-01-24 23:56:39,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:56:39,460 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2018-01-24 23:56:39,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:56:39,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-24 23:56:39,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:56:39,461 INFO L225 Difference]: With dead ends: 71 [2018-01-24 23:56:39,461 INFO L226 Difference]: Without dead ends: 67 [2018-01-24 23:56:39,462 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-01-24 23:56:39,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-01-24 23:56:39,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-01-24 23:56:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-24 23:56:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2018-01-24 23:56:39,470 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 18 [2018-01-24 23:56:39,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:56:39,470 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2018-01-24 23:56:39,470 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:56:39,470 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2018-01-24 23:56:39,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 23:56:39,471 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:56:39,471 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:56:39,471 INFO L371 AbstractCegarLoop]: === Iteration 4 === [test_funErr27RequiresViolation, test_funErr17RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr9RequiresViolation, test_funErr14RequiresViolation, test_funErr22RequiresViolation, test_funErr2RequiresViolation, test_funErr19RequiresViolation, test_funErr6RequiresViolation, test_funErr20RequiresViolation, test_funErr29RequiresViolation, test_funErr16RequiresViolation, test_funErr3RequiresViolation, test_funErr26RequiresViolation, test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr23RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr11RequiresViolation, test_funErr24RequiresViolation, test_funErr15RequiresViolation, test_funErr25RequiresViolation, test_funErr28RequiresViolation, test_funErr1RequiresViolation, test_funErr18RequiresViolation, test_funErr21RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:56:39,472 INFO L82 PathProgramCache]: Analyzing trace with hash 532913875, now seen corresponding path program 1 times [2018-01-24 23:56:39,472 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:56:39,473 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:39,473 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:56:39,474 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:39,474 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:56:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:56:39,490 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:56:39,546 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 23:56:39,546 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:56:39,546 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:56:39,546 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:56:39,546 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:56:39,547 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:56:39,547 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:56:39,547 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand 4 states. [2018-01-24 23:56:39,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:56:39,624 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2018-01-24 23:56:39,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:56:39,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-01-24 23:56:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:56:39,625 INFO L225 Difference]: With dead ends: 67 [2018-01-24 23:56:39,625 INFO L226 Difference]: Without dead ends: 63 [2018-01-24 23:56:39,626 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:56:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-01-24 23:56:39,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-01-24 23:56:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-01-24 23:56:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2018-01-24 23:56:39,631 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 19 [2018-01-24 23:56:39,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:56:39,632 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2018-01-24 23:56:39,632 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:56:39,632 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2018-01-24 23:56:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 23:56:39,633 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:56:39,633 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:56:39,633 INFO L371 AbstractCegarLoop]: === Iteration 5 === [test_funErr27RequiresViolation, test_funErr17RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr9RequiresViolation, test_funErr14RequiresViolation, test_funErr22RequiresViolation, test_funErr2RequiresViolation, test_funErr19RequiresViolation, test_funErr6RequiresViolation, test_funErr20RequiresViolation, test_funErr29RequiresViolation, test_funErr16RequiresViolation, test_funErr3RequiresViolation, test_funErr26RequiresViolation, test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr23RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr11RequiresViolation, test_funErr24RequiresViolation, test_funErr15RequiresViolation, test_funErr25RequiresViolation, test_funErr28RequiresViolation, test_funErr1RequiresViolation, test_funErr18RequiresViolation, test_funErr21RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:56:39,633 INFO L82 PathProgramCache]: Analyzing trace with hash 532913876, now seen corresponding path program 1 times [2018-01-24 23:56:39,634 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:56:39,635 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:39,635 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:56:39,635 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:39,635 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:56:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:56:39,654 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:56:39,804 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 23:56:39,804 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:56:39,804 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 23:56:39,804 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:56:39,805 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 23:56:39,805 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 23:56:39,805 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 23:56:39,806 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 8 states. [2018-01-24 23:56:39,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:56:39,992 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2018-01-24 23:56:39,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 23:56:39,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-01-24 23:56:39,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:56:39,993 INFO L225 Difference]: With dead ends: 63 [2018-01-24 23:56:39,993 INFO L226 Difference]: Without dead ends: 59 [2018-01-24 23:56:39,994 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-01-24 23:56:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-01-24 23:56:39,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-01-24 23:56:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-01-24 23:56:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2018-01-24 23:56:39,997 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 19 [2018-01-24 23:56:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:56:39,998 INFO L432 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2018-01-24 23:56:39,998 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 23:56:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2018-01-24 23:56:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 23:56:39,998 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:56:39,998 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] [2018-01-24 23:56:39,998 INFO L371 AbstractCegarLoop]: === Iteration 6 === [test_funErr27RequiresViolation, test_funErr17RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr9RequiresViolation, test_funErr14RequiresViolation, test_funErr22RequiresViolation, test_funErr2RequiresViolation, test_funErr19RequiresViolation, test_funErr6RequiresViolation, test_funErr20RequiresViolation, test_funErr29RequiresViolation, test_funErr16RequiresViolation, test_funErr3RequiresViolation, test_funErr26RequiresViolation, test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr23RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr11RequiresViolation, test_funErr24RequiresViolation, test_funErr15RequiresViolation, test_funErr25RequiresViolation, test_funErr28RequiresViolation, test_funErr1RequiresViolation, test_funErr18RequiresViolation, test_funErr21RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:56:39,998 INFO L82 PathProgramCache]: Analyzing trace with hash -659539069, now seen corresponding path program 1 times [2018-01-24 23:56:39,999 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:56:39,999 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:39,999 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:56:39,999 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:40,000 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:56:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:56:40,012 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:56:40,029 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 23:56:40,030 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:56:40,030 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:56:40,030 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:56:40,030 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:56:40,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:56:40,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:56:40,031 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 4 states. [2018-01-24 23:56:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:56:40,116 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2018-01-24 23:56:40,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:56:40,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-01-24 23:56:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:56:40,118 INFO L225 Difference]: With dead ends: 59 [2018-01-24 23:56:40,118 INFO L226 Difference]: Without dead ends: 55 [2018-01-24 23:56:40,119 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:56:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-01-24 23:56:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-01-24 23:56:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-01-24 23:56:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2018-01-24 23:56:40,124 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 20 [2018-01-24 23:56:40,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:56:40,124 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2018-01-24 23:56:40,125 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:56:40,125 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2018-01-24 23:56:40,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 23:56:40,126 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:56:40,126 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] [2018-01-24 23:56:40,126 INFO L371 AbstractCegarLoop]: === Iteration 7 === [test_funErr27RequiresViolation, test_funErr17RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr9RequiresViolation, test_funErr14RequiresViolation, test_funErr22RequiresViolation, test_funErr2RequiresViolation, test_funErr19RequiresViolation, test_funErr6RequiresViolation, test_funErr20RequiresViolation, test_funErr29RequiresViolation, test_funErr16RequiresViolation, test_funErr3RequiresViolation, test_funErr26RequiresViolation, test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr23RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr11RequiresViolation, test_funErr24RequiresViolation, test_funErr15RequiresViolation, test_funErr25RequiresViolation, test_funErr28RequiresViolation, test_funErr1RequiresViolation, test_funErr18RequiresViolation, test_funErr21RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:56:40,126 INFO L82 PathProgramCache]: Analyzing trace with hash -659539068, now seen corresponding path program 1 times [2018-01-24 23:56:40,127 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:56:40,127 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:40,128 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:56:40,128 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:40,128 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:56:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:56:40,140 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:56:40,204 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 23:56:40,205 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:56:40,205 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:56:40,205 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:56:40,205 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:56:40,205 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:56:40,206 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:56:40,206 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 4 states. [2018-01-24 23:56:40,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:56:40,257 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2018-01-24 23:56:40,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:56:40,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-01-24 23:56:40,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:56:40,259 INFO L225 Difference]: With dead ends: 55 [2018-01-24 23:56:40,259 INFO L226 Difference]: Without dead ends: 51 [2018-01-24 23:56:40,260 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:56:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-24 23:56:40,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-01-24 23:56:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-01-24 23:56:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2018-01-24 23:56:40,265 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 20 [2018-01-24 23:56:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:56:40,265 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2018-01-24 23:56:40,265 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:56:40,265 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2018-01-24 23:56:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-01-24 23:56:40,266 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:56:40,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:56:40,267 INFO L371 AbstractCegarLoop]: === Iteration 8 === [test_funErr27RequiresViolation, test_funErr17RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr9RequiresViolation, test_funErr14RequiresViolation, test_funErr22RequiresViolation, test_funErr2RequiresViolation, test_funErr19RequiresViolation, test_funErr6RequiresViolation, test_funErr20RequiresViolation, test_funErr29RequiresViolation, test_funErr16RequiresViolation, test_funErr3RequiresViolation, test_funErr26RequiresViolation, test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr23RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr11RequiresViolation, test_funErr24RequiresViolation, test_funErr15RequiresViolation, test_funErr25RequiresViolation, test_funErr28RequiresViolation, test_funErr1RequiresViolation, test_funErr18RequiresViolation, test_funErr21RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 23:56:40,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1501734176, now seen corresponding path program 1 times [2018-01-24 23:56:40,267 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:56:40,268 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:40,268 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:56:40,268 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:56:40,268 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:56:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:56:40,298 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:56:40,880 WARN L146 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 61 DAG size of output 39 [2018-01-24 23:56:41,145 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 23:56:41,146 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:56:41,146 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 23:56:41,146 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:56:41,146 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 23:56:41,146 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 23:56:41,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-24 23:56:41,147 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 10 states. [2018-01-24 23:56:41,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:56:41,577 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2018-01-24 23:56:41,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-24 23:56:41,578 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-01-24 23:56:41,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:56:41,578 INFO L225 Difference]: With dead ends: 51 [2018-01-24 23:56:41,578 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 23:56:41,579 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-01-24 23:56:41,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 23:56:41,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 23:56:41,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 23:56:41,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 23:56:41,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-01-24 23:56:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:56:41,580 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 23:56:41,580 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 23:56:41,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 23:56:41,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 23:56:41,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 23:56:41,805 WARN L146 SmtUtils]: Spent 190ms on a formula simplification. DAG size of input: 94 DAG size of output 93 [2018-01-24 23:56:41,810 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,810 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 562) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point test_funErr6RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point test_funErr12RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point test_funErr21RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point L546(line 546) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point test_funErr20RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point L543(line 543) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point test_funErr5RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,811 INFO L401 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point test_funErr7RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point test_funErr11RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point L552''(line 552) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point L550''(line 550) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point L554'(line 554) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point L550'''''(lines 550 557) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point L546'(line 546) no Hoare annotation was computed. [2018-01-24 23:56:41,812 INFO L401 ceAbstractionStarter]: For program point L554''(line 554) no Hoare annotation was computed. [2018-01-24 23:56:41,813 INFO L401 ceAbstractionStarter]: For program point L543'''(line 543) no Hoare annotation was computed. [2018-01-24 23:56:41,813 INFO L401 ceAbstractionStarter]: For program point test_funErr28RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,813 INFO L401 ceAbstractionStarter]: For program point L550'(line 550) no Hoare annotation was computed. [2018-01-24 23:56:41,813 INFO L401 ceAbstractionStarter]: For program point test_funErr8RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,813 INFO L401 ceAbstractionStarter]: For program point L542'(line 542) no Hoare annotation was computed. [2018-01-24 23:56:41,813 INFO L401 ceAbstractionStarter]: For program point test_funErr14RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,813 INFO L401 ceAbstractionStarter]: For program point test_funEXIT(lines 540 559) no Hoare annotation was computed. [2018-01-24 23:56:41,813 INFO L401 ceAbstractionStarter]: For program point test_funErr3RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,814 INFO L397 ceAbstractionStarter]: At program point L550''''(lines 550 557) the Hoare annotation is: (let ((.cse2 (store |#valid| |test_fun_#t~malloc0.base| 0))) (let ((.cse1 (select .cse2 |test_fun_#t~malloc0.base|)) (.cse0 (select |#length| test_fun_~y_ref~2.base))) (and (not (= |test_fun_#t~malloc1.base| |test_fun_#t~malloc3.base|)) (= (select |#valid| |test_fun_#t~malloc1.base|) 1) (= (select |old(#valid)| |test_fun_#t~malloc3.base|) 0) (= (select |#length| |test_fun_#t~malloc2.base|) .cse0) (= 0 |test_fun_#t~malloc0.offset|) (= 1 (select |#valid| |test_fun_#t~malloc3.base|)) (not (= |test_fun_#t~malloc2.base| |test_fun_#t~malloc3.base|)) (= 4 (select |#length| |test_fun_#t~malloc0.base|)) (= (select |old(#valid)| |test_fun_#t~malloc1.base|) 0) (= 4 (select |#length| test_fun_~x_ref~2.base)) (= test_fun_~c~2.offset 0) (= 4 (select |#length| |test_fun_#t~malloc1.base|)) (= (select |old(#valid)| |test_fun_#t~malloc2.base|) 0) (not (= |test_fun_#t~malloc0.base| |test_fun_#t~malloc1.base|)) (= (select |old(#valid)| |test_fun_#t~malloc0.base|) .cse1) (= 0 |test_fun_#t~malloc3.offset|) (= 1 (select |#valid| test_fun_~z_ref~2.base)) (= (select |#valid| |test_fun_#t~malloc0.base|) 1) (= (select |#valid| test_fun_~y_ref~2.base) 1) (= 4 .cse0) (= test_fun_~x_ref~2.offset 0) (= 1 (select |#valid| test_fun_~c~2.base)) (= 1 (select |#valid| |test_fun_#t~malloc2.base|)) (= (select |#length| test_fun_~c~2.base) 4) (= (select |#valid| test_fun_~x_ref~2.base) 1) (not (= |test_fun_#t~malloc1.base| |test_fun_#t~malloc2.base|)) (= 0 |test_fun_#t~malloc2.offset|) (= test_fun_~z_ref~2.offset 0) (= test_fun_~y_ref~2.offset 0) (= .cse2 (store (store (store (store |old(#valid)| |test_fun_#t~malloc0.base| .cse1) |test_fun_#t~malloc1.base| (select .cse2 |test_fun_#t~malloc1.base|)) |test_fun_#t~malloc3.base| (select .cse2 |test_fun_#t~malloc3.base|)) |test_fun_#t~malloc2.base| (select .cse2 |test_fun_#t~malloc2.base|))) (not (= |test_fun_#t~malloc0.base| |test_fun_#t~malloc2.base|)) (= 4 (select |#length| |test_fun_#t~malloc3.base|)) (= 0 |test_fun_#t~malloc1.offset|) (= (select |#length| test_fun_~z_ref~2.base) .cse0) (not (= |test_fun_#t~malloc0.base| |test_fun_#t~malloc3.base|))))) [2018-01-24 23:56:41,814 INFO L397 ceAbstractionStarter]: At program point test_funENTRY(lines 540 559) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 23:56:41,814 INFO L401 ceAbstractionStarter]: For program point test_funErr22RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,814 INFO L401 ceAbstractionStarter]: For program point L543'(line 543) no Hoare annotation was computed. [2018-01-24 23:56:41,814 INFO L401 ceAbstractionStarter]: For program point L545''(line 545) no Hoare annotation was computed. [2018-01-24 23:56:41,814 INFO L401 ceAbstractionStarter]: For program point L543''(line 543) no Hoare annotation was computed. [2018-01-24 23:56:41,814 INFO L401 ceAbstractionStarter]: For program point L551''''(lines 551 555) no Hoare annotation was computed. [2018-01-24 23:56:41,815 INFO L401 ceAbstractionStarter]: For program point test_funErr0RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,815 INFO L401 ceAbstractionStarter]: For program point test_funErr17RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,815 INFO L401 ceAbstractionStarter]: For program point L544'''(line 544) no Hoare annotation was computed. [2018-01-24 23:56:41,815 INFO L401 ceAbstractionStarter]: For program point test_funFINAL(lines 540 559) no Hoare annotation was computed. [2018-01-24 23:56:41,815 INFO L401 ceAbstractionStarter]: For program point L551'(line 551) no Hoare annotation was computed. [2018-01-24 23:56:41,815 INFO L401 ceAbstractionStarter]: For program point test_funErr25RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,815 INFO L401 ceAbstractionStarter]: For program point test_funErr1RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,815 INFO L401 ceAbstractionStarter]: For program point test_funErr18RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point test_funErr2RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point L551''(line 551) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point test_funErr27RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point test_funErr24RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point test_funErr19RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point L544'(line 544) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point L556'(line 556) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point test_funErr15RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point test_funErr10RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point L545'''(line 545) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point L552(line 552) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point L552'(line 552) no Hoare annotation was computed. [2018-01-24 23:56:41,816 INFO L401 ceAbstractionStarter]: For program point L550(lines 550 557) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point test_funErr23RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point L558(line 558) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point test_funErr16RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point test_funErr29RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point L542''(line 542) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point test_funErr9RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point test_funErr26RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point L545'(line 545) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point test_funErr4RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,817 INFO L401 ceAbstractionStarter]: For program point L544''(line 544) no Hoare annotation was computed. [2018-01-24 23:56:41,818 INFO L401 ceAbstractionStarter]: For program point test_funErr13RequiresViolation(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,818 INFO L401 ceAbstractionStarter]: For program point L542'''(line 542) no Hoare annotation was computed. [2018-01-24 23:56:41,818 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 562) the Hoare annotation is: true [2018-01-24 23:56:41,818 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,818 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 562) the Hoare annotation is: true [2018-01-24 23:56:41,818 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 562) no Hoare annotation was computed. [2018-01-24 23:56:41,818 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 560 562) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 23:56:41,819 INFO L401 ceAbstractionStarter]: For program point L561'(line 561) no Hoare annotation was computed. [2018-01-24 23:56:41,819 INFO L397 ceAbstractionStarter]: At program point L561(line 561) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 23:56:41,819 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 560 562) no Hoare annotation was computed. [2018-01-24 23:56:41,819 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 560 562) no Hoare annotation was computed. [2018-01-24 23:56:41,819 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 560 562) no Hoare annotation was computed. [2018-01-24 23:56:41,829 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,831 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,831 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,832 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,832 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,832 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,839 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,840 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,840 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,840 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,841 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,841 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,841 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,842 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,842 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,842 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 11:56:41 BoogieIcfgContainer [2018-01-24 23:56:41,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 23:56:41,846 INFO L168 Benchmark]: Toolchain (without parser) took 4192.13 ms. Allocated memory was 299.4 MB in the beginning and 508.0 MB in the end (delta: 208.7 MB). Free memory was 259.4 MB in the beginning and 441.9 MB in the end (delta: -182.5 MB). Peak memory consumption was 168.4 MB. Max. memory is 5.3 GB. [2018-01-24 23:56:41,847 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 299.4 MB. Free memory is still 265.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 23:56:41,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.83 ms. Allocated memory is still 299.4 MB. Free memory was 258.4 MB in the beginning and 248.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 23:56:41,847 INFO L168 Benchmark]: Boogie Preprocessor took 33.98 ms. Allocated memory is still 299.4 MB. Free memory was 248.3 MB in the beginning and 246.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 23:56:41,848 INFO L168 Benchmark]: RCFGBuilder took 357.63 ms. Allocated memory is still 299.4 MB. Free memory was 246.3 MB in the beginning and 223.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-01-24 23:56:41,848 INFO L168 Benchmark]: TraceAbstraction took 3602.70 ms. Allocated memory was 299.4 MB in the beginning and 508.0 MB in the end (delta: 208.7 MB). Free memory was 223.7 MB in the beginning and 441.9 MB in the end (delta: -218.2 MB). Peak memory consumption was 132.7 MB. Max. memory is 5.3 GB. [2018-01-24 23:56:41,849 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 299.4 MB. Free memory is still 265.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 188.83 ms. Allocated memory is still 299.4 MB. Free memory was 258.4 MB in the beginning and 248.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.98 ms. Allocated memory is still 299.4 MB. Free memory was 248.3 MB in the beginning and 246.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 357.63 ms. Allocated memory is still 299.4 MB. Free memory was 246.3 MB in the beginning and 223.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 3602.70 ms. Allocated memory was 299.4 MB in the beginning and 508.0 MB in the end (delta: 208.7 MB). Free memory was 223.7 MB in the beginning and 441.9 MB in the end (delta: -218.2 MB). Peak memory consumption was 132.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 560]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold - InvariantResult [Line: 550]: Loop Invariant [2018-01-24 23:56:41,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,857 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,857 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,857 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,857 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,858 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,858 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,861 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,861 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,862 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,862 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,862 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,862 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,863 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,863 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,863 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 23:56:41,863 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((((((((((((((((((((((((((((!(__builtin_alloca (sizeof(int)) == __builtin_alloca (sizeof(int))) && \valid[__builtin_alloca (sizeof(int))] == 1) && \old(\valid)[__builtin_alloca (sizeof(int))] == 0) && unknown-#length-unknown[__builtin_alloca (sizeof(int))] == unknown-#length-unknown[y_ref]) && 0 == __builtin_alloca (sizeof(int))) && 1 == \valid[__builtin_alloca (sizeof(int))]) && !(__builtin_alloca (sizeof(int)) == __builtin_alloca (sizeof(int)))) && 4 == unknown-#length-unknown[__builtin_alloca (sizeof(int))]) && \old(\valid)[__builtin_alloca (sizeof(int))] == 0) && 4 == unknown-#length-unknown[x_ref]) && c == 0) && 4 == unknown-#length-unknown[__builtin_alloca (sizeof(int))]) && \old(\valid)[__builtin_alloca (sizeof(int))] == 0) && !(__builtin_alloca (sizeof(int)) == __builtin_alloca (sizeof(int)))) && \old(\valid)[__builtin_alloca (sizeof(int))] == \valid[__builtin_alloca (sizeof(int)) := 0][__builtin_alloca (sizeof(int))]) && 0 == __builtin_alloca (sizeof(int))) && 1 == \valid[z_ref]) && \valid[__builtin_alloca (sizeof(int))] == 1) && \valid[y_ref] == 1) && 4 == unknown-#length-unknown[y_ref]) && x_ref == 0) && 1 == \valid[c]) && 1 == \valid[__builtin_alloca (sizeof(int))]) && unknown-#length-unknown[c] == 4) && \valid[x_ref] == 1) && !(__builtin_alloca (sizeof(int)) == __builtin_alloca (sizeof(int)))) && 0 == __builtin_alloca (sizeof(int))) && z_ref == 0) && y_ref == 0) && \valid[__builtin_alloca (sizeof(int)) := 0] == \old(\valid)[__builtin_alloca (sizeof(int)) := \valid[__builtin_alloca (sizeof(int)) := 0][__builtin_alloca (sizeof(int))]][__builtin_alloca (sizeof(int)) := \valid[__builtin_alloca (sizeof(int)) := 0][__builtin_alloca (sizeof(int))]][__builtin_alloca (sizeof(int)) := \valid[__builtin_alloca (sizeof(int)) := 0][__builtin_alloca (sizeof(int))]][__builtin_alloca (sizeof(int)) := \valid[__builtin_alloca (sizeof(int)) := 0][__builtin_alloca (sizeof(int))]]) && !(__builtin_alloca (sizeof(int)) == __builtin_alloca (sizeof(int)))) && 4 == unknown-#length-unknown[__builtin_alloca (sizeof(int))]) && 0 == __builtin_alloca (sizeof(int))) && unknown-#length-unknown[z_ref] == unknown-#length-unknown[y_ref]) && !(__builtin_alloca (sizeof(int)) == __builtin_alloca (sizeof(int))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 84 locations, 31 error locations. SAFE Result, 3.5s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 271 SDtfs, 648 SDslu, 388 SDs, 0 SdLazy, 610 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 15 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 210 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 76862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/c.03-alloca_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_23-56-41-869.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/c.03-alloca_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_23-56-41-869.csv Received shutdown request...