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_Taipan+AI_EQ_smtcomp.epf -i ../../../trunk/examples/svcomp/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 10:45:57,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 10:45:57,646 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 10:45:57,660 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 10:45:57,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 10:45:57,661 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 10:45:57,662 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 10:45:57,664 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 10:45:57,666 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 10:45:57,667 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 10:45:57,667 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 10:45:57,667 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 10:45:57,668 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 10:45:57,669 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 10:45:57,670 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 10:45:57,672 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 10:45:57,674 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 10:45:57,676 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 10:45:57,677 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 10:45:57,679 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 10:45:57,681 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 10:45:57,681 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 10:45:57,682 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 10:45:57,683 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 10:45:57,683 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 10:45:57,685 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 10:45:57,685 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 10:45:57,686 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 10:45:57,686 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 10:45:57,686 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 10:45:57,687 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 10:45:57,687 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf [2018-01-21 10:45:57,697 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 10:45:57,697 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 10:45:57,698 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 10:45:57,698 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 10:45:57,698 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 10:45:57,698 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 10:45:57,699 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-21 10:45:57,699 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 10:45:57,699 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 10:45:57,700 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 10:45:57,700 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 10:45:57,700 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 10:45:57,700 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 10:45:57,700 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 10:45:57,701 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 10:45:57,701 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 10:45:57,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 10:45:57,701 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 10:45:57,701 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 10:45:57,701 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 10:45:57,702 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 10:45:57,702 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 10:45:57,702 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 10:45:57,702 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 10:45:57,702 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 10:45:57,703 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 10:45:57,703 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 10:45:57,703 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 10:45:57,703 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 10:45:57,703 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 10:45:57,704 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 10:45:57,704 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 10:45:57,704 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 10:45:57,704 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 10:45:57,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 10:45:57,704 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 10:45:57,705 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 10:45:57,705 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 10:45:57,706 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 10:45:57,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 10:45:57,752 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 10:45:57,756 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 10:45:57,757 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 10:45:57,758 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 10:45:57,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i [2018-01-21 10:45:57,949 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 10:45:57,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 10:45:57,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 10:45:57,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 10:45:57,964 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 10:45:57,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:45:57" (1/1) ... [2018-01-21 10:45:57,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2fa6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:57, skipping insertion in model container [2018-01-21 10:45:57,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:45:57" (1/1) ... [2018-01-21 10:45:57,982 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:45:58,011 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:45:58,127 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:45:58,142 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:45:58,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58 WrapperNode [2018-01-21 10:45:58,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 10:45:58,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 10:45:58,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 10:45:58,152 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 10:45:58,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (1/1) ... [2018-01-21 10:45:58,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (1/1) ... [2018-01-21 10:45:58,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (1/1) ... [2018-01-21 10:45:58,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (1/1) ... [2018-01-21 10:45:58,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (1/1) ... [2018-01-21 10:45:58,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (1/1) ... [2018-01-21 10:45:58,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (1/1) ... [2018-01-21 10:45:58,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 10:45:58,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 10:45:58,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 10:45:58,192 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 10:45:58,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 10:45:58,241 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 10:45:58,242 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 10:45:58,242 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-01-21 10:45:58,242 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 10:45:58,242 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 10:45:58,242 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 10:45:58,242 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 10:45:58,242 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 10:45:58,242 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 10:45:58,242 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 10:45:58,242 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 10:45:58,243 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 10:45:58,243 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 10:45:58,243 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 10:45:58,243 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-01-21 10:45:58,243 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 10:45:58,243 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 10:45:58,244 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 10:45:58,437 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 10:45:58,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:45:58 BoogieIcfgContainer [2018-01-21 10:45:58,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 10:45:58,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 10:45:58,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 10:45:58,440 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 10:45:58,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 10:45:57" (1/3) ... [2018-01-21 10:45:58,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1753b988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:45:58, skipping insertion in model container [2018-01-21 10:45:58,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:45:58" (2/3) ... [2018-01-21 10:45:58,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1753b988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:45:58, skipping insertion in model container [2018-01-21 10:45:58,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:45:58" (3/3) ... [2018-01-21 10:45:58,443 INFO L105 eAbstractionObserver]: Analyzing ICFG list_flag_true-unreach-call_false-valid-memtrack.i [2018-01-21 10:45:58,450 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 10:45:58,456 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 10:45:58,489 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:45:58,489 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:45:58,490 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:45:58,490 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:45:58,490 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:45:58,490 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:45:58,490 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:45:58,490 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == exitErr0EnsuresViolation======== [2018-01-21 10:45:58,491 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:45:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-21 10:45:58,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 10:45:58,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 49 states. [2018-01-21 10:45:58,622 INFO L401 ceAbstractionStarter]: For program point exitErr0EnsuresViolation(line 525) no Hoare annotation was computed. [2018-01-21 10:45:58,622 INFO L401 ceAbstractionStarter]: For program point exitFINAL(lines 619 621) no Hoare annotation was computed. [2018-01-21 10:45:58,651 INFO L404 ceAbstractionStarter]: At program point exitENTRY(lines 619 621) the Hoare annotation is: true [2018-01-21 10:45:58,651 INFO L401 ceAbstractionStarter]: For program point L620(line 620) no Hoare annotation was computed. [2018-01-21 10:45:58,651 INFO L401 ceAbstractionStarter]: For program point exitEXIT(lines 619 621) no Hoare annotation was computed. [2018-01-21 10:45:58,651 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0EnsuresViolation(lines 1 653) no Hoare annotation was computed. [2018-01-21 10:45:58,651 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 653) no Hoare annotation was computed. [2018-01-21 10:45:58,651 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 653) the Hoare annotation is: true [2018-01-21 10:45:58,652 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 653) no Hoare annotation was computed. [2018-01-21 10:45:58,652 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 653) the Hoare annotation is: true [2018-01-21 10:45:58,652 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 653) no Hoare annotation was computed. [2018-01-21 10:45:58,652 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 653) the Hoare annotation is: true [2018-01-21 10:45:58,652 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startErr0EnsuresViolation(lines 1 653) no Hoare annotation was computed. [2018-01-21 10:45:58,652 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 653) no Hoare annotation was computed. [2018-01-21 10:45:58,652 INFO L404 ceAbstractionStarter]: At program point L630'(line 630) the Hoare annotation is: true [2018-01-21 10:45:58,652 INFO L401 ceAbstractionStarter]: For program point L650'(line 650) no Hoare annotation was computed. [2018-01-21 10:45:58,652 INFO L404 ceAbstractionStarter]: At program point L649'''(lines 649 650) the Hoare annotation is: true [2018-01-21 10:45:58,652 INFO L401 ceAbstractionStarter]: For program point L629(line 629) no Hoare annotation was computed. [2018-01-21 10:45:58,653 INFO L401 ceAbstractionStarter]: For program point L647'(line 647) no Hoare annotation was computed. [2018-01-21 10:45:58,653 INFO L404 ceAbstractionStarter]: At program point L639'(line 639) the Hoare annotation is: true [2018-01-21 10:45:58,653 INFO L401 ceAbstractionStarter]: For program point L639'''(line 639) no Hoare annotation was computed. [2018-01-21 10:45:58,653 INFO L401 ceAbstractionStarter]: For program point L652(line 652) no Hoare annotation was computed. [2018-01-21 10:45:58,653 INFO L401 ceAbstractionStarter]: For program point L651''(lines 651 652) no Hoare annotation was computed. [2018-01-21 10:45:58,653 INFO L401 ceAbstractionStarter]: For program point L651(line 651) no Hoare annotation was computed. [2018-01-21 10:45:58,653 INFO L401 ceAbstractionStarter]: For program point L650(line 650) no Hoare annotation was computed. [2018-01-21 10:45:58,653 INFO L404 ceAbstractionStarter]: At program point L646'''(lines 646 647) the Hoare annotation is: true [2018-01-21 10:45:58,653 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 626 653) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L404 ceAbstractionStarter]: At program point mainENTRY(lines 626 653) the Hoare annotation is: true [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L636'(line 636) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L632'(lines 632 642) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L404 ceAbstractionStarter]: At program point L632'''(lines 632 642) the Hoare annotation is: true [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L630'''(line 630) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L641(line 641) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L640(line 640) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L645(lines 645 650) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L632''''(lines 632 642) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L643(line 643) no Hoare annotation was computed. [2018-01-21 10:45:58,654 INFO L401 ceAbstractionStarter]: For program point L649(lines 649 650) no Hoare annotation was computed. [2018-01-21 10:45:58,655 INFO L401 ceAbstractionStarter]: For program point L647(line 647) no Hoare annotation was computed. [2018-01-21 10:45:58,655 INFO L401 ceAbstractionStarter]: For program point L646(lines 646 647) no Hoare annotation was computed. [2018-01-21 10:45:58,655 INFO L401 ceAbstractionStarter]: For program point L649'(line 649) no Hoare annotation was computed. [2018-01-21 10:45:58,655 INFO L401 ceAbstractionStarter]: For program point L629'(line 629) no Hoare annotation was computed. [2018-01-21 10:45:58,655 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 626 653) no Hoare annotation was computed. [2018-01-21 10:45:58,655 INFO L401 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2018-01-21 10:45:58,655 INFO L401 ceAbstractionStarter]: For program point L634(line 634) no Hoare annotation was computed. [2018-01-21 10:45:58,655 INFO L401 ceAbstractionStarter]: For program point L633(lines 633 637) no Hoare annotation was computed. [2018-01-21 10:45:58,656 INFO L401 ceAbstractionStarter]: For program point L632(lines 632 642) no Hoare annotation was computed. [2018-01-21 10:45:58,656 INFO L401 ceAbstractionStarter]: For program point L638(line 638) no Hoare annotation was computed. [2018-01-21 10:45:58,656 INFO L401 ceAbstractionStarter]: For program point L636(line 636) no Hoare annotation was computed. [2018-01-21 10:45:58,656 INFO L401 ceAbstractionStarter]: For program point L639(line 639) no Hoare annotation was computed. [2018-01-21 10:45:58,656 INFO L401 ceAbstractionStarter]: For program point L646'(line 646) no Hoare annotation was computed. [2018-01-21 10:45:58,656 INFO L401 ceAbstractionStarter]: For program point L649''''(lines 649 650) no Hoare annotation was computed. [2018-01-21 10:45:58,661 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:45:58,661 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:45:58,661 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:45:58,661 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:45:58,661 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:45:58,661 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:45:58,662 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:45:58,662 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 10:45:58,662 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:45:58,664 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-21 10:45:58,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 10:45:58,665 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:45:58,666 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 10:45:58,666 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 10:45:58,672 INFO L82 PathProgramCache]: Analyzing trace with hash 139664, now seen corresponding path program 1 times [2018-01-21 10:45:58,675 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:45:58,697 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:45:58,697 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:45:58,697 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:45:58,698 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:45:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:45:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:45:58,743 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 10:45:58,748 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:45:58,752 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:45:58,752 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:45:58,753 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:45:58,753 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:45:58,753 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:45:58,753 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:45:58,753 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:45:58,753 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 10:45:58,753 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:45:58,756 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-21 10:45:58,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-21 10:45:58,758 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:45:58,758 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] [2018-01-21 10:45:58,758 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:45:58,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1574628710, now seen corresponding path program 1 times [2018-01-21 10:45:58,759 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:45:58,760 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:45:58,760 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:45:58,761 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:45:58,761 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:45:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:45:58,793 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:45:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:45:58,823 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:45:58,824 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:45:58,824 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:45:58,827 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 10:45:58,900 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 10:45:58,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 10:45:58,902 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-01-21 10:45:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:45:58,918 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2018-01-21 10:45:58,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 10:45:58,919 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-01-21 10:45:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:45:58,928 INFO L225 Difference]: With dead ends: 71 [2018-01-21 10:45:58,929 INFO L226 Difference]: Without dead ends: 41 [2018-01-21 10:45:58,931 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 [2018-01-21 10:45:58,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-21 10:45:58,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-21 10:45:58,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-21 10:45:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-01-21 10:45:58,957 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 20 [2018-01-21 10:45:58,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:45:58,957 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-01-21 10:45:58,957 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 10:45:58,958 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-01-21 10:45:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-21 10:45:58,959 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:45:58,959 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] [2018-01-21 10:45:58,959 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:45:58,959 INFO L82 PathProgramCache]: Analyzing trace with hash 456771048, now seen corresponding path program 1 times [2018-01-21 10:45:58,960 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:45:58,960 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:45:58,961 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:45:58,961 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:45:58,961 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:45:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:45:58,978 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:45:59,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:45:59,045 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:45:59,045 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 10:45:59,045 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:45:59,047 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 10:45:59,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 10:45:59,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 10:45:59,048 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 4 states. [2018-01-21 10:45:59,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:45:59,125 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2018-01-21 10:45:59,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 10:45:59,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-01-21 10:45:59,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:45:59,127 INFO L225 Difference]: With dead ends: 67 [2018-01-21 10:45:59,127 INFO L226 Difference]: Without dead ends: 48 [2018-01-21 10:45:59,129 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 [2018-01-21 10:45:59,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-01-21 10:45:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-01-21 10:45:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-01-21 10:45:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-01-21 10:45:59,136 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 24 [2018-01-21 10:45:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:45:59,136 INFO L432 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-01-21 10:45:59,136 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 10:45:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-01-21 10:45:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-21 10:45:59,137 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:45:59,138 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:45:59,138 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:45:59,138 INFO L82 PathProgramCache]: Analyzing trace with hash 590533786, now seen corresponding path program 1 times [2018-01-21 10:45:59,138 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:45:59,139 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:45:59,140 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:45:59,140 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:45:59,140 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:45:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:45:59,165 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:45:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:45:59,310 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 10:45:59,311 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 10:45:59,312 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-01-21 10:45:59,314 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [8], [10], [14], [16], [19], [21], [24], [25], [30], [31], [37], [39], [40], [41], [45], [46], [49], [53], [55], [58], [84], [91], [93], [100], [101], [106], [111], [112], [113], [114] [2018-01-21 10:45:59,374 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 10:45:59,374 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 10:47:06,762 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 10:47:06,763 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 10:47:06,786 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 10:47:06,786 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 10:47:06,786 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 10:47:06,792 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:47:06,793 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 10:47:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:47:06,846 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 10:47:06,850 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 10:47:06,850 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 10:47:06,852 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:47:06,852 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:47:06,852 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:47:06,852 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:47:06,852 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:47:06,852 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:47:06,852 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:47:06,852 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 10:47:06,852 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:47:06,853 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-21 10:47:06,854 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 10:47:06,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 10:47:06 BoogieIcfgContainer [2018-01-21 10:47:06,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 10:47:06,855 INFO L168 Benchmark]: Toolchain (without parser) took 68905.23 ms. Allocated memory was 303.6 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 261.9 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 405.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:47:06,856 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 303.6 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 10:47:06,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.31 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 250.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:47:06,856 INFO L168 Benchmark]: Boogie Preprocessor took 38.99 ms. Allocated memory is still 303.6 MB. Free memory was 250.9 MB in the beginning and 248.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:47:06,857 INFO L168 Benchmark]: RCFGBuilder took 246.40 ms. Allocated memory is still 303.6 MB. Free memory was 248.9 MB in the beginning and 230.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. [2018-01-21 10:47:06,857 INFO L168 Benchmark]: TraceAbstraction took 68416.28 ms. Allocated memory was 303.6 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 230.2 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 373.3 MB. Max. memory is 5.3 GB. [2018-01-21 10:47:06,858 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 303.6 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 195.31 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 250.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.99 ms. Allocated memory is still 303.6 MB. Free memory was 250.9 MB in the beginning and 248.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 246.40 ms. Allocated memory is still 303.6 MB. Free memory was 248.9 MB in the beginning and 230.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 68416.28 ms. Allocated memory was 303.6 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 230.2 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 373.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 525]: 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: exitErr0EnsuresViolation CFG has 4 procedures, 52 locations, 4 error locations. SAFE Result, 0.1s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 10 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: 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 4 procedures, 52 locations, 4 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=49occurred 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 - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1). Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 3 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 52 locations, 4 error locations. TIMEOUT Result, 68.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 15 SDslu, 66 SDs, 0 SdLazy, 17 SolverSat, 4 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=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 67.4s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2017 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 - TimeoutResultAtElement [Line: 626]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 626). Cancelled while IsEmpty was searching accepting run (input had 49 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 52 locations, 4 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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: 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/list_flag_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_10-47-06-864.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_flag_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_10-47-06-864.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_flag_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_10-47-06-864.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_flag_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_10-47-06-864.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_flag_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_10-47-06-864.csv Completed graceful shutdown