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/mempurity-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrlen_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-47db877 [2018-01-23 14:20:30,709 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 14:20:30,711 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 14:20:30,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 14:20:30,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 14:20:30,729 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 14:20:30,730 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 14:20:30,731 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 14:20:30,733 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 14:20:30,733 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 14:20:30,734 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 14:20:30,734 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 14:20:30,735 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 14:20:30,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 14:20:30,737 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 14:20:30,740 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 14:20:30,742 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 14:20:30,744 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 14:20:30,745 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 14:20:30,747 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 14:20:30,749 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-23 14:20:30,749 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-23 14:20:30,749 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-23 14:20:30,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-23 14:20:30,751 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-23 14:20:30,753 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-23 14:20:30,753 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-23 14:20:30,754 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-23 14:20:30,754 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-23 14:20:30,754 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-23 14:20:30,755 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-23 14:20:30,755 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-23 14:20:30,765 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 14:20:30,765 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 14:20:30,766 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 14:20:30,766 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 14:20:30,767 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 14:20:30,767 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 14:20:30,767 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 14:20:30,768 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 14:20:30,768 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 14:20:30,768 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 14:20:30,768 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 14:20:30,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 14:20:30,769 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 14:20:30,769 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 14:20:30,769 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 14:20:30,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 14:20:30,769 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 14:20:30,770 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 14:20:30,770 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 14:20:30,770 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 14:20:30,770 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 14:20:30,771 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 14:20:30,771 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 14:20:30,771 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 14:20:30,771 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 14:20:30,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 14:20:30,772 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 14:20:30,772 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 14:20:30,772 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 14:20:30,772 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 14:20:30,772 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 14:20:30,773 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 14:20:30,773 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 14:20:30,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 14:20:30,773 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 14:20:30,774 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 14:20:30,774 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 14:20:30,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 14:20:30,822 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 14:20:30,826 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 14:20:30,828 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 14:20:30,828 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 14:20:30,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrlen_unsafe_false-valid-deref.i [2018-01-23 14:20:30,995 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 14:20:30,999 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 14:20:31,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 14:20:31,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 14:20:31,005 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 14:20:31,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:20:30" (1/1) ... [2018-01-23 14:20:31,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3247c7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31, skipping insertion in model container [2018-01-23 14:20:31,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:20:30" (1/1) ... [2018-01-23 14:20:31,027 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 14:20:31,068 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 14:20:31,186 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 14:20:31,201 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 14:20:31,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31 WrapperNode [2018-01-23 14:20:31,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 14:20:31,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 14:20:31,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 14:20:31,208 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 14:20:31,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (1/1) ... [2018-01-23 14:20:31,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (1/1) ... [2018-01-23 14:20:31,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (1/1) ... [2018-01-23 14:20:31,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (1/1) ... [2018-01-23 14:20:31,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (1/1) ... [2018-01-23 14:20:31,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (1/1) ... [2018-01-23 14:20:31,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (1/1) ... [2018-01-23 14:20:31,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 14:20:31,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 14:20:31,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 14:20:31,249 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 14:20:31,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (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 [2018-01-23 14:20:31,309 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 14:20:31,309 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 14:20:31,309 INFO L136 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-01-23 14:20:31,309 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrlen [2018-01-23 14:20:31,309 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 14:20:31,310 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-23 14:20:31,310 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-23 14:20:31,310 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 14:20:31,310 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 14:20:31,310 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-23 14:20:31,310 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-23 14:20:31,311 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-23 14:20:31,311 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 14:20:31,311 INFO L128 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-01-23 14:20:31,311 INFO L128 BoogieDeclarations]: Found specification of procedure cstrlen [2018-01-23 14:20:31,311 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 14:20:31,311 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 14:20:31,311 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 14:20:31,491 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 14:20:31,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:20:31 BoogieIcfgContainer [2018-01-23 14:20:31,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 14:20:31,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-23 14:20:31,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-23 14:20:31,494 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-23 14:20:31,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 02:20:30" (1/3) ... [2018-01-23 14:20:31,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b75e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:20:31, skipping insertion in model container [2018-01-23 14:20:31,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:20:31" (2/3) ... [2018-01-23 14:20:31,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b75e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:20:31, skipping insertion in model container [2018-01-23 14:20:31,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:20:31" (3/3) ... [2018-01-23 14:20:31,498 INFO L105 eAbstractionObserver]: Analyzing ICFG cstrlen_unsafe_false-valid-deref.i [2018-01-23 14:20:31,505 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-23 14:20:31,510 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-23 14:20:31,555 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:31,555 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:31,555 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:31,555 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:31,555 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:31,556 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:31,556 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:31,556 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == build_nondet_StringErr0EnsuresViolation======== [2018-01-23 14:20:31,557 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:31,575 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-01-23 14:20:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-23 14:20:31,581 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:31,582 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:20:31,582 INFO L371 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr0EnsuresViolation]=== [2018-01-23 14:20:31,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1563563532, now seen corresponding path program 1 times [2018-01-23 14:20:31,588 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:31,588 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:31,627 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:31,627 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:31,628 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:20:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:20:31,717 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:20:31,725 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:20:31,727 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:20:31,735 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:31,736 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:31,736 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:31,736 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:31,736 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:31,736 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:31,736 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:31,736 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-23 14:20:31,736 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-01-23 14:20:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-23 14:20:31,738 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:31,738 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-23 14:20:31,738 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-23 14:20:31,738 INFO L82 PathProgramCache]: Analyzing trace with hash 78515, now seen corresponding path program 1 times [2018-01-23 14:20:31,738 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:31,738 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:31,739 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:31,739 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:31,740 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:20:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:20:31,750 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:20:31,751 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:20:31,753 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:31,753 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:31,753 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:31,753 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:31,753 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:31,753 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:31,754 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:31,754 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == cstrlenErr0EnsuresViolation======== [2018-01-23 14:20:31,754 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-01-23 14:20:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-23 14:20:31,756 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:31,756 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] [2018-01-23 14:20:31,756 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrlenErr0EnsuresViolation]=== [2018-01-23 14:20:31,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1743696405, now seen corresponding path program 1 times [2018-01-23 14:20:31,757 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:31,757 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:31,758 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:31,758 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:31,758 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:20:31,780 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:20:31,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:20:31,820 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:20:31,820 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:20:31,821 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-23 14:20:31,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-23 14:20:31,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:31,833 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-01-23 14:20:31,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:20:31,918 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-01-23 14:20:31,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-23 14:20:31,920 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-01-23 14:20:31,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:20:31,926 INFO L225 Difference]: With dead ends: 47 [2018-01-23 14:20:31,926 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:20:31,929 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:31,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:20:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:20:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:20:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:20:31,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-01-23 14:20:31,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:20:31,951 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:20:31,951 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-23 14:20:31,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:20:31,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:20:31,955 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:31,955 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:31,955 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:31,955 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:31,955 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:31,955 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:31,956 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:31,956 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-23 14:20:31,956 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:31,957 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-01-23 14:20:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-23 14:20:31,959 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:31,959 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:20:31,959 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-23 14:20:31,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1534295287, now seen corresponding path program 1 times [2018-01-23 14:20:31,960 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:31,960 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:31,961 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:31,961 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:31,961 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:20:31,979 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:20:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:20:32,004 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:20:32,004 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:20:32,005 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-23 14:20:32,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-23 14:20:32,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:32,006 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-01-23 14:20:32,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:20:32,010 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-01-23 14:20:32,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-23 14:20:32,010 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-01-23 14:20:32,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:20:32,013 INFO L225 Difference]: With dead ends: 47 [2018-01-23 14:20:32,013 INFO L226 Difference]: Without dead ends: 30 [2018-01-23 14:20:32,014 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-23 14:20:32,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-01-23 14:20:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-01-23 14:20:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-01-23 14:20:32,025 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2018-01-23 14:20:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:20:32,025 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-01-23 14:20:32,025 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-23 14:20:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-01-23 14:20:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-23 14:20:32,026 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:32,026 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] [2018-01-23 14:20:32,027 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-23 14:20:32,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1461842691, now seen corresponding path program 1 times [2018-01-23 14:20:32,027 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:32,027 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:32,028 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:32,028 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:32,028 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:20:32,047 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:20:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:20:32,111 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:20:32,112 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-23 14:20:32,115 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-23 14:20:32,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-23 14:20:32,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-23 14:20:32,116 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 4 states. [2018-01-23 14:20:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:20:32,159 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-01-23 14:20:32,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-23 14:20:32,160 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-01-23 14:20:32,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:20:32,160 INFO L225 Difference]: With dead ends: 30 [2018-01-23 14:20:32,160 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:20:32,161 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-23 14:20:32,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:20:32,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:20:32,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:20:32,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:20:32,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-01-23 14:20:32,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:20:32,162 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:20:32,162 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-23 14:20:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:20:32,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:20:32,164 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:20:32,164 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:20:32,164 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:20:32,164 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:20:32,165 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:20:32,165 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:20:32,165 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:20:32,165 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-23 14:20:32,165 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:20:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-01-23 14:20:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-23 14:20:32,167 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:32,167 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] [2018-01-23 14:20:32,167 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-23 14:20:32,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1078690336, now seen corresponding path program 1 times [2018-01-23 14:20:32,167 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:32,167 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:32,168 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:32,168 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:32,168 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:20:32,178 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:20:32,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:20:32,193 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:20:32,193 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:20:32,193 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-23 14:20:32,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-23 14:20:32,194 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:32,194 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-01-23 14:20:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:20:32,198 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-01-23 14:20:32,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-23 14:20:32,198 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-01-23 14:20:32,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:20:32,199 INFO L225 Difference]: With dead ends: 47 [2018-01-23 14:20:32,199 INFO L226 Difference]: Without dead ends: 28 [2018-01-23 14:20:32,200 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-23 14:20:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-01-23 14:20:32,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-01-23 14:20:32,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-23 14:20:32,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-01-23 14:20:32,204 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 25 [2018-01-23 14:20:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:20:32,205 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-01-23 14:20:32,205 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-23 14:20:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-01-23 14:20:32,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-23 14:20:32,206 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:20:32,206 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:20:32,206 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-23 14:20:32,206 INFO L82 PathProgramCache]: Analyzing trace with hash -788112474, now seen corresponding path program 1 times [2018-01-23 14:20:32,207 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:20:32,207 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:20:32,208 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:32,208 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:20:32,208 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:20:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:20:32,221 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:20:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:20:32,256 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:20:32,256 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-23 14:20:32,257 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-23 14:20:32,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-23 14:20:32,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-23 14:20:32,257 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 4 states. [2018-01-23 14:20:32,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:20:32,290 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-01-23 14:20:32,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-23 14:20:32,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-01-23 14:20:32,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:20:32,292 INFO L225 Difference]: With dead ends: 28 [2018-01-23 14:20:32,292 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:20:32,292 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-23 14:20:32,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:20:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:20:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:20:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:20:32,293 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-01-23 14:20:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:20:32,294 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:20:32,294 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-23 14:20:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:20:32,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:20:32,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 02:20:32 BoogieIcfgContainer [2018-01-23 14:20:32,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-23 14:20:32,298 INFO L168 Benchmark]: Toolchain (without parser) took 1302.05 ms. Allocated memory was 303.0 MB in the beginning and 459.3 MB in the end (delta: 156.2 MB). Free memory was 261.3 MB in the beginning and 398.1 MB in the end (delta: -136.8 MB). Peak memory consumption was 19.5 MB. Max. memory is 5.3 GB. [2018-01-23 14:20:32,298 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 303.0 MB. Free memory is still 267.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 14:20:32,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.20 ms. Allocated memory is still 303.0 MB. Free memory was 260.3 MB in the beginning and 250.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-23 14:20:32,299 INFO L168 Benchmark]: Boogie Preprocessor took 40.88 ms. Allocated memory is still 303.0 MB. Free memory was 250.3 MB in the beginning and 249.3 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-23 14:20:32,299 INFO L168 Benchmark]: RCFGBuilder took 243.31 ms. Allocated memory is still 303.0 MB. Free memory was 248.3 MB in the beginning and 233.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-23 14:20:32,299 INFO L168 Benchmark]: TraceAbstraction took 804.39 ms. Allocated memory was 303.0 MB in the beginning and 459.3 MB in the end (delta: 156.2 MB). Free memory was 233.7 MB in the beginning and 398.1 MB in the end (delta: -164.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 14:20:32,300 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 303.0 MB. Free memory is still 267.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 207.20 ms. Allocated memory is still 303.0 MB. Free memory was 260.3 MB in the beginning and 250.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.88 ms. Allocated memory is still 303.0 MB. Free memory was 250.3 MB in the beginning and 249.3 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 243.31 ms. Allocated memory is still 303.0 MB. Free memory was 248.3 MB in the beginning and 233.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 804.39 ms. Allocated memory was 303.0 MB in the beginning and 459.3 MB in the end (delta: 156.2 MB). Free memory was 233.7 MB in the beginning and 398.1 MB in the end (delta: -164.4 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L557] CALL build_nondet_String() [L541] int length = __VERIFIER_nondet_int(); [L542] COND TRUE length < 1 [L543] length = 1 VAL [length=1] [L545] EXPR, FCALL malloc(length * sizeof(char)) VAL [length=1, malloc(length * sizeof(char))={3:0}] [L545] char* nondetString = (char*) malloc(length * sizeof(char)); VAL [length=1, malloc(length * sizeof(char))={3:0}, nondetString={3:0}] [L546] FCALL nondetString[length-1] = '\0' VAL [length=1, malloc(length * sizeof(char))={3:0}, nondetString={3:0}] [L547] return nondetString; VAL [\result={3:0}, length=1, malloc(length * sizeof(char))={3:0}, nondetString={3:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: build_nondet_StringErr0EnsuresViolation CFG has 5 procedures, 35 locations, 5 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 5 procedures, 35 locations, 5 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 549]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: cstrlenErr0EnsuresViolation CFG has 5 procedures, 35 locations, 5 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 35 locations, 5 error locations. SAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1964 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 556]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 5 procedures, 35 locations, 5 error locations. SAFE Result, 0.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-23_14-20-32-310.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-23_14-20-32-310.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-23_14-20-32-310.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-23_14-20-32-310.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-23_14-20-32-310.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-23_14-20-32-310.csv Received shutdown request...