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_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 00:03:56,584 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:03:56,586 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:03:56,601 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:03:56,601 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:03:56,602 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:03:56,603 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:03:56,605 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:03:56,607 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:03:56,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:03:56,609 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 00:03:56,609 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 00:03:56,610 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 00:03:56,611 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 00:03:56,612 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 00:03:56,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 00:03:56,617 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 00:03:56,619 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 00:03:56,620 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 00:03:56,621 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 00:03:56,624 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 00:03:56,624 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 00:03:56,624 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 00:03:56,625 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 00:03:56,626 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 00:03:56,627 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 00:03:56,627 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 00:03:56,628 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 00:03:56,628 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 00:03:56,628 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 00:03:56,629 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 00:03:56,629 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 00:03:56,638 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:03:56,638 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:03:56,639 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:03:56,639 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:03:56,639 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:03:56,639 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:03:56,639 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:03:56,640 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:03:56,640 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:03:56,640 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:03:56,640 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:03:56,640 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:03:56,640 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:03:56,641 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:03:56,641 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:03:56,641 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:03:56,641 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:03:56,641 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:03:56,641 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:03:56,641 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:03:56,641 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:03:56,642 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:03:56,642 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:03:56,642 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:03:56,642 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:03:56,642 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:03:56,643 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:03:56,643 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:03:56,643 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:03:56,643 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:03:56,643 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:03:56,643 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 00:03:56,643 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:03:56,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:03:56,644 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:03:56,644 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 00:03:56,644 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:03:56,644 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:03:56,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:03:56,687 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:03:56,691 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:03:56,692 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:03:56,692 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:03:56,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_true-unreach-call_false-valid-memtrack.i [2018-01-21 00:03:56,840 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:03:56,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:03:56,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:03:56,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:03:56,850 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:03:56,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:03:56" (1/1) ... [2018-01-21 00:03:56,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12061d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:56, skipping insertion in model container [2018-01-21 00:03:56,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:03:56" (1/1) ... [2018-01-21 00:03:56,871 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:03:56,911 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:03:57,030 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:03:57,046 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:03:57,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57 WrapperNode [2018-01-21 00:03:57,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:03:57,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:03:57,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:03:57,055 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:03:57,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (1/1) ... [2018-01-21 00:03:57,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (1/1) ... [2018-01-21 00:03:57,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (1/1) ... [2018-01-21 00:03:57,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (1/1) ... [2018-01-21 00:03:57,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (1/1) ... [2018-01-21 00:03:57,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (1/1) ... [2018-01-21 00:03:57,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (1/1) ... [2018-01-21 00:03:57,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:03:57,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:03:57,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:03:57,099 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:03:57,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (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 00:03:57,160 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:03:57,160 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:03:57,161 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-01-21 00:03:57,161 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:03:57,161 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:03:57,161 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:03:57,161 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 00:03:57,161 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 00:03:57,161 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:03:57,162 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:03:57,162 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 00:03:57,162 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 00:03:57,162 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 00:03:57,162 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 00:03:57,162 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-01-21 00:03:57,162 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:03:57,163 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:03:57,163 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:03:57,402 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:03:57,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:03:57 BoogieIcfgContainer [2018-01-21 00:03:57,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:03:57,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 00:03:57,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 00:03:57,406 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 00:03:57,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:03:56" (1/3) ... [2018-01-21 00:03:57,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1616ce1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:03:57, skipping insertion in model container [2018-01-21 00:03:57,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:03:57" (2/3) ... [2018-01-21 00:03:57,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1616ce1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:03:57, skipping insertion in model container [2018-01-21 00:03:57,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:03:57" (3/3) ... [2018-01-21 00:03:57,410 INFO L105 eAbstractionObserver]: Analyzing ICFG list_true-unreach-call_false-valid-memtrack.i [2018-01-21 00:03:57,417 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 00:03:57,423 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 00:03:57,473 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:03:57,473 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:03:57,473 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:03:57,473 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:03:57,473 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:03:57,474 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:03:57,474 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:03:57,474 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == exitErr0EnsuresViolation======== [2018-01-21 00:03:57,475 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:03:57,494 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-21 00:03:57,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:03:57,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 57 states. [2018-01-21 00:03:57,581 INFO L401 ceAbstractionStarter]: For program point exitErr0EnsuresViolation(line 525) no Hoare annotation was computed. [2018-01-21 00:03:57,581 INFO L401 ceAbstractionStarter]: For program point exitFINAL(lines 619 621) no Hoare annotation was computed. [2018-01-21 00:03:57,581 INFO L404 ceAbstractionStarter]: At program point exitENTRY(lines 619 621) the Hoare annotation is: true [2018-01-21 00:03:57,581 INFO L401 ceAbstractionStarter]: For program point L620(line 620) no Hoare annotation was computed. [2018-01-21 00:03:57,581 INFO L401 ceAbstractionStarter]: For program point exitEXIT(lines 619 621) no Hoare annotation was computed. [2018-01-21 00:03:57,581 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0EnsuresViolation(lines 1 654) no Hoare annotation was computed. [2018-01-21 00:03:57,582 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 654) no Hoare annotation was computed. [2018-01-21 00:03:57,582 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 654) the Hoare annotation is: true [2018-01-21 00:03:57,582 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 654) no Hoare annotation was computed. [2018-01-21 00:03:57,582 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 654) the Hoare annotation is: true [2018-01-21 00:03:57,582 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 654) no Hoare annotation was computed. [2018-01-21 00:03:57,582 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 654) the Hoare annotation is: true [2018-01-21 00:03:57,582 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startErr0EnsuresViolation(lines 1 654) no Hoare annotation was computed. [2018-01-21 00:03:57,583 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 654) no Hoare annotation was computed. [2018-01-21 00:03:57,583 INFO L401 ceAbstractionStarter]: For program point L650'(line 650) no Hoare annotation was computed. [2018-01-21 00:03:57,583 INFO L401 ceAbstractionStarter]: For program point L627(line 627) no Hoare annotation was computed. [2018-01-21 00:03:57,583 INFO L401 ceAbstractionStarter]: For program point L649'''(lines 649 650) no Hoare annotation was computed. [2018-01-21 00:03:57,583 INFO L401 ceAbstractionStarter]: For program point L647'(line 647) no Hoare annotation was computed. [2018-01-21 00:03:57,583 INFO L401 ceAbstractionStarter]: For program point L628(line 628) no Hoare annotation was computed. [2018-01-21 00:03:57,583 INFO L401 ceAbstractionStarter]: For program point L638''''(lines 638 644) no Hoare annotation was computed. [2018-01-21 00:03:57,584 INFO L401 ceAbstractionStarter]: For program point L651''(lines 651 652) no Hoare annotation was computed. [2018-01-21 00:03:57,584 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 626 654) no Hoare annotation was computed. [2018-01-21 00:03:57,584 INFO L401 ceAbstractionStarter]: For program point L648'(line 648) no Hoare annotation was computed. [2018-01-21 00:03:57,584 INFO L401 ceAbstractionStarter]: For program point L641(line 641) no Hoare annotation was computed. [2018-01-21 00:03:57,584 INFO L401 ceAbstractionStarter]: For program point L640(line 640) no Hoare annotation was computed. [2018-01-21 00:03:57,584 INFO L401 ceAbstractionStarter]: For program point L645(line 645) no Hoare annotation was computed. [2018-01-21 00:03:57,584 INFO L401 ceAbstractionStarter]: For program point L643(line 643) no Hoare annotation was computed. [2018-01-21 00:03:57,585 INFO L401 ceAbstractionStarter]: For program point L642(line 642) no Hoare annotation was computed. [2018-01-21 00:03:57,585 INFO L401 ceAbstractionStarter]: For program point L649(lines 649 650) no Hoare annotation was computed. [2018-01-21 00:03:57,585 INFO L401 ceAbstractionStarter]: For program point L648(line 648) no Hoare annotation was computed. [2018-01-21 00:03:57,585 INFO L401 ceAbstractionStarter]: For program point L628'''(line 628) no Hoare annotation was computed. [2018-01-21 00:03:57,585 INFO L401 ceAbstractionStarter]: For program point L647(lines 647 648) no Hoare annotation was computed. [2018-01-21 00:03:57,585 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 626 654) no Hoare annotation was computed. [2018-01-21 00:03:57,585 INFO L401 ceAbstractionStarter]: For program point L634(line 634) no Hoare annotation was computed. [2018-01-21 00:03:57,586 INFO L401 ceAbstractionStarter]: For program point L633(line 633) no Hoare annotation was computed. [2018-01-21 00:03:57,586 INFO L401 ceAbstractionStarter]: For program point L632(line 632) no Hoare annotation was computed. [2018-01-21 00:03:57,586 INFO L401 ceAbstractionStarter]: For program point L631(lines 631 637) no Hoare annotation was computed. [2018-01-21 00:03:57,586 INFO L401 ceAbstractionStarter]: For program point L638(lines 638 644) no Hoare annotation was computed. [2018-01-21 00:03:57,586 INFO L401 ceAbstractionStarter]: For program point L636(line 636) no Hoare annotation was computed. [2018-01-21 00:03:57,586 INFO L401 ceAbstractionStarter]: For program point L635(line 635) no Hoare annotation was computed. [2018-01-21 00:03:57,587 INFO L401 ceAbstractionStarter]: For program point L639(line 639) no Hoare annotation was computed. [2018-01-21 00:03:57,587 INFO L404 ceAbstractionStarter]: At program point L634'(line 634) the Hoare annotation is: true [2018-01-21 00:03:57,587 INFO L401 ceAbstractionStarter]: For program point L634'''(line 634) no Hoare annotation was computed. [2018-01-21 00:03:57,587 INFO L401 ceAbstractionStarter]: For program point L631'(lines 631 637) no Hoare annotation was computed. [2018-01-21 00:03:57,588 INFO L404 ceAbstractionStarter]: At program point L631'''(lines 631 637) the Hoare annotation is: true [2018-01-21 00:03:57,588 INFO L401 ceAbstractionStarter]: For program point L639'(line 639) no Hoare annotation was computed. [2018-01-21 00:03:57,588 INFO L401 ceAbstractionStarter]: For program point L652(line 652) no Hoare annotation was computed. [2018-01-21 00:03:57,588 INFO L401 ceAbstractionStarter]: For program point L651(line 651) no Hoare annotation was computed. [2018-01-21 00:03:57,588 INFO L401 ceAbstractionStarter]: For program point L650(line 650) no Hoare annotation was computed. [2018-01-21 00:03:57,589 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 626 654) no Hoare annotation was computed. [2018-01-21 00:03:57,589 INFO L404 ceAbstractionStarter]: At program point mainENTRY(lines 626 654) the Hoare annotation is: true [2018-01-21 00:03:57,589 INFO L401 ceAbstractionStarter]: For program point L632'(line 632) no Hoare annotation was computed. [2018-01-21 00:03:57,589 INFO L404 ceAbstractionStarter]: At program point L628'(line 628) the Hoare annotation is: true [2018-01-21 00:03:57,589 INFO L404 ceAbstractionStarter]: At program point L647'''(lines 647 648) the Hoare annotation is: true [2018-01-21 00:03:57,589 INFO L401 ceAbstractionStarter]: For program point L649'(line 649) no Hoare annotation was computed. [2018-01-21 00:03:57,590 INFO L404 ceAbstractionStarter]: At program point L641'(line 641) the Hoare annotation is: true [2018-01-21 00:03:57,590 INFO L401 ceAbstractionStarter]: For program point L638'(lines 638 644) no Hoare annotation was computed. [2018-01-21 00:03:57,590 INFO L401 ceAbstractionStarter]: For program point L638'''(lines 638 644) no Hoare annotation was computed. [2018-01-21 00:03:57,590 INFO L401 ceAbstractionStarter]: For program point L641'''(line 641) no Hoare annotation was computed. [2018-01-21 00:03:57,590 INFO L401 ceAbstractionStarter]: For program point L649''''(lines 649 650) no Hoare annotation was computed. [2018-01-21 00:03:57,594 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:03:57,594 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:03:57,594 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:03:57,594 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:03:57,594 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:03:57,594 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:03:57,595 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:03:57,595 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 00:03:57,595 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:03:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-21 00:03:57,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 00:03:57,597 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:03:57,598 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 00:03:57,598 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 00:03:57,601 INFO L82 PathProgramCache]: Analyzing trace with hash 154495, now seen corresponding path program 1 times [2018-01-21 00:03:57,603 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:03:57,623 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:57,623 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:03:57,623 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:57,623 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:03:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:03:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:03:57,694 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:03:57,698 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:03:57,703 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:03:57,703 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:03:57,703 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:03:57,703 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:03:57,703 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:03:57,703 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:03:57,704 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:03:57,704 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 00:03:57,704 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:03:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-21 00:03:57,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-21 00:03:57,709 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:03:57,709 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] [2018-01-21 00:03:57,709 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:03:57,709 INFO L82 PathProgramCache]: Analyzing trace with hash 748584202, now seen corresponding path program 1 times [2018-01-21 00:03:57,710 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:03:57,711 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:57,711 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:03:57,711 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:57,712 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:03:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:03:57,735 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:03:57,770 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 00:03:57,771 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:03:57,771 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 00:03:57,771 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:03:57,773 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 00:03:57,845 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 00:03:57,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:03:57,848 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-01-21 00:03:57,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:03:57,871 INFO L93 Difference]: Finished difference Result 92 states and 108 transitions. [2018-01-21 00:03:57,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 00:03:57,873 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-01-21 00:03:57,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:03:57,880 INFO L225 Difference]: With dead ends: 92 [2018-01-21 00:03:57,880 INFO L226 Difference]: Without dead ends: 48 [2018-01-21 00:03:57,882 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 00:03:57,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-01-21 00:03:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-01-21 00:03:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-21 00:03:57,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-01-21 00:03:57,912 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 21 [2018-01-21 00:03:57,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:03:57,912 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-01-21 00:03:57,912 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 00:03:57,912 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-01-21 00:03:57,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-21 00:03:57,913 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:03:57,913 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:03:57,913 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:03:57,914 INFO L82 PathProgramCache]: Analyzing trace with hash 482191050, now seen corresponding path program 1 times [2018-01-21 00:03:57,914 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:03:57,914 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:57,915 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:03:57,915 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:57,915 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:03:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:03:57,940 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:03:58,028 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 00:03:58,028 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:03:58,028 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 00:03:58,028 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:03:58,030 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 00:03:58,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 00:03:58,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 00:03:58,031 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 4 states. [2018-01-21 00:03:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:03:58,081 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-01-21 00:03:58,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 00:03:58,082 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-01-21 00:03:58,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:03:58,084 INFO L225 Difference]: With dead ends: 77 [2018-01-21 00:03:58,084 INFO L226 Difference]: Without dead ends: 58 [2018-01-21 00:03:58,085 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 00:03:58,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-21 00:03:58,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2018-01-21 00:03:58,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-21 00:03:58,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2018-01-21 00:03:58,092 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 29 [2018-01-21 00:03:58,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:03:58,093 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2018-01-21 00:03:58,093 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 00:03:58,093 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2018-01-21 00:03:58,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-21 00:03:58,094 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:03:58,095 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, 1, 1, 1, 1] [2018-01-21 00:03:58,095 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:03:58,095 INFO L82 PathProgramCache]: Analyzing trace with hash 853755939, now seen corresponding path program 1 times [2018-01-21 00:03:58,095 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:03:58,096 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:58,096 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:03:58,097 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:03:58,097 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:03:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:03:58,127 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:03:58,627 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 00:03:58,628 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:03:58,628 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:03:58,629 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-01-21 00:03:58,631 INFO L201 CegarAbsIntRunner]: [0], [1], [7], [9], [13], [15], [18], [39], [41], [44], [46], [47], [48], [49], [55], [57], [58], [59], [63], [64], [68], [70], [73], [83], [85], [88], [96], [103], [105], [106], [113], [114], [119], [126], [127], [128], [129] [2018-01-21 00:03:58,692 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:03:58,692 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 00:05:02,547 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 00:05:02,547 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 00:05:02,548 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:05:02,548 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:05:02,548 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 00:05:02,556 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:05:02,557 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:05:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:05:02,593 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:05:02,599 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 00:05:02,600 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:05:02,602 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:05:02,602 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:05:02,602 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:05:02,602 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:05:02,603 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:05:02,603 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:05:02,603 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:05:02,603 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 00:05:02,603 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:05:02,604 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-21 00:05:02,605 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 00:05:02,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 12:05:02 BoogieIcfgContainer [2018-01-21 00:05:02,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 00:05:02,606 INFO L168 Benchmark]: Toolchain (without parser) took 65765.76 ms. Allocated memory was 307.2 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 265.5 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 444.8 MB. Max. memory is 5.3 GB. [2018-01-21 00:05:02,607 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 307.2 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:05:02,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.03 ms. Allocated memory is still 307.2 MB. Free memory was 264.5 MB in the beginning and 254.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:05:02,608 INFO L168 Benchmark]: Boogie Preprocessor took 44.48 ms. Allocated memory is still 307.2 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:05:02,608 INFO L168 Benchmark]: RCFGBuilder took 303.72 ms. Allocated memory is still 307.2 MB. Free memory was 252.6 MB in the beginning and 232.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:05:02,608 INFO L168 Benchmark]: TraceAbstraction took 65201.83 ms. Allocated memory was 307.2 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 231.6 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 410.8 MB. Max. memory is 5.3 GB. [2018-01-21 00:05:02,610 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 307.2 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 209.03 ms. Allocated memory is still 307.2 MB. Free memory was 264.5 MB in the beginning and 254.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 44.48 ms. Allocated memory is still 307.2 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 303.72 ms. Allocated memory is still 307.2 MB. Free memory was 252.6 MB in the beginning and 232.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 65201.83 ms. Allocated memory was 307.2 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 231.6 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 410.8 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, 60 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=57occurred 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, 12 PreInvPairs, 12 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 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, 60 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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 40 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, 60 locations, 4 error locations. TIMEOUT Result, 64.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 109 SDtfs, 10 SDslu, 77 SDs, 0 SdLazy, 20 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=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 63.9s 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 3004 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 57 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 60 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=57occurred 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_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_00-05-02-616.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_00-05-02-616.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_00-05-02-616.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_00-05-02-616.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_00-05-02-616.csv Completed graceful shutdown