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.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 00:03:35,604 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:03:35,606 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:03:35,618 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:03:35,618 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:03:35,619 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:03:35,620 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:03:35,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:03:35,624 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:03:35,625 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:03:35,625 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 00:03:35,626 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 00:03:35,626 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 00:03:35,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 00:03:35,628 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 00:03:35,631 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 00:03:35,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 00:03:35,635 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 00:03:35,636 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 00:03:35,637 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 00:03:35,639 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 00:03:35,640 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 00:03:35,640 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 00:03:35,641 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 00:03:35,642 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 00:03:35,643 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 00:03:35,643 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 00:03:35,644 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 00:03:35,644 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 00:03:35,644 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 00:03:35,645 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 00:03:35,645 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.epf [2018-01-21 00:03:35,655 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:03:35,656 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:03:35,657 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:03:35,657 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:03:35,657 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:03:35,657 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:03:35,657 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:03:35,658 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:03:35,658 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:03:35,659 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:03:35,659 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:03:35,659 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:03:35,659 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:03:35,659 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:03:35,659 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:03:35,660 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:03:35,660 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:03:35,660 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:03:35,660 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:03:35,660 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:03:35,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:03:35,661 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:03:35,661 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:03:35,661 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:03:35,661 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:03:35,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:03:35,662 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:03:35,662 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:03:35,662 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:03:35,663 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:03:35,663 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:03:35,663 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 00:03:35,663 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:03:35,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:03:35,663 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:03:35,664 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 00:03:35,664 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:03:35,665 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:03:35,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:03:35,713 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:03:35,717 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:03:35,719 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:03:35,719 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:03:35,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_flag_true-unreach-call_false-valid-memtrack.i [2018-01-21 00:03:35,882 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:03:35,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:03:35,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:03:35,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:03:35,892 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:03:35,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:03:35" (1/1) ... [2018-01-21 00:03:35,895 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 12:03:35, skipping insertion in model container [2018-01-21 00:03:35,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:03:35" (1/1) ... [2018-01-21 00:03:35,912 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:03:35,951 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:03:36,071 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:03:36,086 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:03:36,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36 WrapperNode [2018-01-21 00:03:36,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:03:36,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:03:36,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:03:36,093 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:03:36,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (1/1) ... [2018-01-21 00:03:36,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (1/1) ... [2018-01-21 00:03:36,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (1/1) ... [2018-01-21 00:03:36,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (1/1) ... [2018-01-21 00:03:36,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (1/1) ... [2018-01-21 00:03:36,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (1/1) ... [2018-01-21 00:03:36,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (1/1) ... [2018-01-21 00:03:36,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:03:36,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:03:36,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:03:36,137 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:03:36,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (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 00:03:36,198 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:03:36,198 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:03:36,198 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-01-21 00:03:36,198 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:03:36,199 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 00:03:36,199 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 00:03:36,199 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:03:36,199 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:03:36,199 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:03:36,199 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:03:36,200 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 00:03:36,200 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 00:03:36,200 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 00:03:36,200 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 00:03:36,200 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-01-21 00:03:36,200 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:03:36,201 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:03:36,201 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:03:36,407 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:03:36,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:03:36 BoogieIcfgContainer [2018-01-21 00:03:36,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:03:36,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 00:03:36,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 00:03:36,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 00:03:36,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:03:35" (1/3) ... [2018-01-21 00:03:36,411 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 12:03:36, skipping insertion in model container [2018-01-21 00:03:36,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:36" (2/3) ... [2018-01-21 00:03:36,412 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 12:03:36, skipping insertion in model container [2018-01-21 00:03:36,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:03:36" (3/3) ... [2018-01-21 00:03:36,413 INFO L105 eAbstractionObserver]: Analyzing ICFG list_flag_true-unreach-call_false-valid-memtrack.i [2018-01-21 00:03:36,420 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 00:03:36,426 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 00:03:36,460 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:03:36,461 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:03:36,461 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:03:36,461 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:03:36,461 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:03:36,461 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:03:36,461 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:03:36,462 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == exitErr0EnsuresViolation======== [2018-01-21 00:03:36,462 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:03:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-21 00:03:36,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:03:36,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 49 states. [2018-01-21 00:03:36,588 INFO L401 ceAbstractionStarter]: For program point exitErr0EnsuresViolation(line 525) no Hoare annotation was computed. [2018-01-21 00:03:36,589 INFO L401 ceAbstractionStarter]: For program point exitFINAL(lines 619 621) no Hoare annotation was computed. [2018-01-21 00:03:36,589 INFO L404 ceAbstractionStarter]: At program point exitENTRY(lines 619 621) the Hoare annotation is: true [2018-01-21 00:03:36,589 INFO L401 ceAbstractionStarter]: For program point L620(line 620) no Hoare annotation was computed. [2018-01-21 00:03:36,589 INFO L401 ceAbstractionStarter]: For program point exitEXIT(lines 619 621) no Hoare annotation was computed. [2018-01-21 00:03:36,589 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0EnsuresViolation(lines 1 653) no Hoare annotation was computed. [2018-01-21 00:03:36,590 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 653) no Hoare annotation was computed. [2018-01-21 00:03:36,590 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 653) the Hoare annotation is: true [2018-01-21 00:03:36,590 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 653) no Hoare annotation was computed. [2018-01-21 00:03:36,590 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 653) the Hoare annotation is: true [2018-01-21 00:03:36,591 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 653) no Hoare annotation was computed. [2018-01-21 00:03:36,591 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 653) the Hoare annotation is: true [2018-01-21 00:03:36,591 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startErr0EnsuresViolation(lines 1 653) no Hoare annotation was computed. [2018-01-21 00:03:36,591 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 653) no Hoare annotation was computed. [2018-01-21 00:03:36,591 INFO L404 ceAbstractionStarter]: At program point L630'(line 630) the Hoare annotation is: true [2018-01-21 00:03:36,591 INFO L401 ceAbstractionStarter]: For program point L650'(line 650) no Hoare annotation was computed. [2018-01-21 00:03:36,592 INFO L404 ceAbstractionStarter]: At program point L649'''(lines 649 650) the Hoare annotation is: true [2018-01-21 00:03:36,592 INFO L401 ceAbstractionStarter]: For program point L629(line 629) no Hoare annotation was computed. [2018-01-21 00:03:36,592 INFO L401 ceAbstractionStarter]: For program point L647'(line 647) no Hoare annotation was computed. [2018-01-21 00:03:36,592 INFO L404 ceAbstractionStarter]: At program point L639'(line 639) the Hoare annotation is: true [2018-01-21 00:03:36,592 INFO L401 ceAbstractionStarter]: For program point L639'''(line 639) no Hoare annotation was computed. [2018-01-21 00:03:36,592 INFO L401 ceAbstractionStarter]: For program point L652(line 652) no Hoare annotation was computed. [2018-01-21 00:03:36,593 INFO L401 ceAbstractionStarter]: For program point L651''(lines 651 652) no Hoare annotation was computed. [2018-01-21 00:03:36,593 INFO L401 ceAbstractionStarter]: For program point L651(line 651) no Hoare annotation was computed. [2018-01-21 00:03:36,593 INFO L401 ceAbstractionStarter]: For program point L650(line 650) no Hoare annotation was computed. [2018-01-21 00:03:36,593 INFO L404 ceAbstractionStarter]: At program point L646'''(lines 646 647) the Hoare annotation is: true [2018-01-21 00:03:36,593 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 626 653) no Hoare annotation was computed. [2018-01-21 00:03:36,593 INFO L404 ceAbstractionStarter]: At program point mainENTRY(lines 626 653) the Hoare annotation is: true [2018-01-21 00:03:36,594 INFO L401 ceAbstractionStarter]: For program point L636'(line 636) no Hoare annotation was computed. [2018-01-21 00:03:36,594 INFO L401 ceAbstractionStarter]: For program point L632'(lines 632 642) no Hoare annotation was computed. [2018-01-21 00:03:36,594 INFO L404 ceAbstractionStarter]: At program point L632'''(lines 632 642) the Hoare annotation is: true [2018-01-21 00:03:36,594 INFO L401 ceAbstractionStarter]: For program point L630'''(line 630) no Hoare annotation was computed. [2018-01-21 00:03:36,594 INFO L401 ceAbstractionStarter]: For program point L641(line 641) no Hoare annotation was computed. [2018-01-21 00:03:36,594 INFO L401 ceAbstractionStarter]: For program point L640(line 640) no Hoare annotation was computed. [2018-01-21 00:03:36,595 INFO L401 ceAbstractionStarter]: For program point L645(lines 645 650) no Hoare annotation was computed. [2018-01-21 00:03:36,595 INFO L401 ceAbstractionStarter]: For program point L632''''(lines 632 642) no Hoare annotation was computed. [2018-01-21 00:03:36,595 INFO L401 ceAbstractionStarter]: For program point L643(line 643) no Hoare annotation was computed. [2018-01-21 00:03:36,595 INFO L401 ceAbstractionStarter]: For program point L649(lines 649 650) no Hoare annotation was computed. [2018-01-21 00:03:36,595 INFO L401 ceAbstractionStarter]: For program point L647(line 647) no Hoare annotation was computed. [2018-01-21 00:03:36,595 INFO L401 ceAbstractionStarter]: For program point L646(lines 646 647) no Hoare annotation was computed. [2018-01-21 00:03:36,595 INFO L401 ceAbstractionStarter]: For program point L649'(line 649) no Hoare annotation was computed. [2018-01-21 00:03:36,595 INFO L401 ceAbstractionStarter]: For program point L629'(line 629) no Hoare annotation was computed. [2018-01-21 00:03:36,596 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 626 653) no Hoare annotation was computed. [2018-01-21 00:03:36,596 INFO L401 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2018-01-21 00:03:36,596 INFO L401 ceAbstractionStarter]: For program point L634(line 634) no Hoare annotation was computed. [2018-01-21 00:03:36,596 INFO L401 ceAbstractionStarter]: For program point L633(lines 633 637) no Hoare annotation was computed. [2018-01-21 00:03:36,596 INFO L401 ceAbstractionStarter]: For program point L632(lines 632 642) no Hoare annotation was computed. [2018-01-21 00:03:36,596 INFO L401 ceAbstractionStarter]: For program point L638(line 638) no Hoare annotation was computed. [2018-01-21 00:03:36,596 INFO L401 ceAbstractionStarter]: For program point L636(line 636) no Hoare annotation was computed. [2018-01-21 00:03:36,597 INFO L401 ceAbstractionStarter]: For program point L639(line 639) no Hoare annotation was computed. [2018-01-21 00:03:36,597 INFO L401 ceAbstractionStarter]: For program point L646'(line 646) no Hoare annotation was computed. [2018-01-21 00:03:36,597 INFO L401 ceAbstractionStarter]: For program point L649''''(lines 649 650) no Hoare annotation was computed. [2018-01-21 00:03:36,601 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:03:36,601 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:03:36,601 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:03:36,601 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:03:36,602 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:03:36,602 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:03:36,602 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:03:36,602 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 00:03:36,602 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:03:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-21 00:03:36,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 00:03:36,605 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:03:36,606 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 00:03:36,606 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 00:03:36,610 INFO L82 PathProgramCache]: Analyzing trace with hash 139664, now seen corresponding path program 1 times [2018-01-21 00:03:36,611 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:03:36,627 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:36,627 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:03:36,627 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:36,627 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:03:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:03:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:03:36,679 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:03:36,683 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:03:36,688 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:03:36,688 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:03:36,688 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:03:36,689 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:03:36,689 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:03:36,689 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:03:36,689 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:03:36,689 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 00:03:36,689 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:03:36,692 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-21 00:03:36,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-21 00:03:36,694 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:03:36,694 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 00:03:36,694 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:03:36,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1574628710, now seen corresponding path program 1 times [2018-01-21 00:03:36,694 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:03:36,696 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:36,696 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:03:36,696 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:36,696 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:03:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:03:36,725 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:03:36,759 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 00:03:36,761 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:03:36,761 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 00:03:36,762 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:03:36,764 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 00:03:36,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 00:03:36,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:03:36,843 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-01-21 00:03:36,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:03:36,863 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2018-01-21 00:03:36,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 00:03:36,864 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-01-21 00:03:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:03:36,871 INFO L225 Difference]: With dead ends: 71 [2018-01-21 00:03:36,871 INFO L226 Difference]: Without dead ends: 41 [2018-01-21 00:03:36,873 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 00:03:36,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-21 00:03:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-21 00:03:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-21 00:03:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-01-21 00:03:36,902 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 20 [2018-01-21 00:03:36,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:03:36,902 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-01-21 00:03:36,902 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 00:03:36,902 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-01-21 00:03:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-21 00:03:36,903 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:03:36,903 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 00:03:36,903 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:03:36,903 INFO L82 PathProgramCache]: Analyzing trace with hash 456771048, now seen corresponding path program 1 times [2018-01-21 00:03:36,904 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:03:36,904 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:36,904 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:03:36,905 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:36,905 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:03:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:03:36,922 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:03:36,994 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 00:03:36,995 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:03:36,995 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 00:03:36,995 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:03:36,997 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 00:03:36,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 00:03:36,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 00:03:36,998 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 4 states. [2018-01-21 00:03:37,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:03:37,055 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2018-01-21 00:03:37,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 00:03:37,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-01-21 00:03:37,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:03:37,056 INFO L225 Difference]: With dead ends: 67 [2018-01-21 00:03:37,057 INFO L226 Difference]: Without dead ends: 48 [2018-01-21 00:03:37,058 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 00:03:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-01-21 00:03:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-01-21 00:03:37,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-01-21 00:03:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-01-21 00:03:37,064 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 24 [2018-01-21 00:03:37,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:03:37,065 INFO L432 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-01-21 00:03:37,065 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 00:03:37,065 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-01-21 00:03:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-21 00:03:37,066 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:03:37,066 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 00:03:37,067 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:03:37,067 INFO L82 PathProgramCache]: Analyzing trace with hash 590533786, now seen corresponding path program 1 times [2018-01-21 00:03:37,067 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:03:37,068 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:37,068 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:03:37,068 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:37,069 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:03:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:03:37,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:03:37,239 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 00:03:37,240 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:03:37,240 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:03:37,241 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-01-21 00:03:37,243 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 00:03:37,289 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:03:37,290 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 00:04:44,621 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 00:04:44,622 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 00:04:44,641 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:04:44,641 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:04:44,641 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 00:04:44,647 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:04:44,647 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:04:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:04:44,679 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:04:44,684 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 00:04:44,685 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:04:44,686 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:04:44,686 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:04:44,687 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:04:44,687 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:04:44,687 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:04:44,687 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:04:44,687 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:04:44,687 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 00:04:44,687 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:04:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-21 00:04:44,689 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:04:44,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 12:04:44 BoogieIcfgContainer [2018-01-21 00:04:44,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 00:04:44,690 INFO L168 Benchmark]: Toolchain (without parser) took 68807.93 ms. Allocated memory was 302.5 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 262.4 MB in the beginning and 273.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-01-21 00:04:44,691 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.5 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:04:44,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.94 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 251.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:04:44,692 INFO L168 Benchmark]: Boogie Preprocessor took 43.79 ms. Allocated memory is still 302.5 MB. Free memory was 251.4 MB in the beginning and 249.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:04:44,692 INFO L168 Benchmark]: RCFGBuilder took 270.58 ms. Allocated memory is still 302.5 MB. Free memory was 249.4 MB in the beginning and 230.4 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:04:44,692 INFO L168 Benchmark]: TraceAbstraction took 68281.59 ms. Allocated memory was 302.5 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 230.4 MB in the beginning and 273.1 MB in the end (delta: -42.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 5.3 GB. [2018-01-21 00:04:44,693 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.5 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 204.94 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 251.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 43.79 ms. Allocated memory is still 302.5 MB. Free memory was 251.4 MB in the beginning and 249.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 270.58 ms. Allocated memory is still 302.5 MB. Free memory was 249.4 MB in the beginning and 230.4 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 68281.59 ms. Allocated memory was 302.5 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 230.4 MB in the beginning and 273.1 MB in the end (delta: -42.7 MB). Peak memory consumption was 1.9 GB. 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, 67.9s 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, 67.3s 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, 0.1s 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.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_00-04-44-699.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_00-04-44-699.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_00-04-44-699.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_00-04-44-699.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_00-04-44-699.csv Completed graceful shutdown