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_precise.epf -i ../../../trunk/examples/svcomp/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 05:54:21,677 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 05:54:21,679 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 05:54:21,694 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 05:54:21,694 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 05:54:21,695 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 05:54:21,696 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 05:54:21,698 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 05:54:21,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 05:54:21,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 05:54:21,702 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 05:54:21,703 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 05:54:21,704 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 05:54:21,705 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 05:54:21,706 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 05:54:21,708 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 05:54:21,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 05:54:21,713 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 05:54:21,714 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 05:54:21,715 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 05:54:21,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 05:54:21,718 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 05:54:21,718 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 05:54:21,719 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 05:54:21,720 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 05:54:21,722 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 05:54:21,722 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 05:54:21,723 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 05:54:21,723 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 05:54:21,723 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 05:54:21,724 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 05:54:21,724 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_precise.epf [2018-01-21 05:54:21,735 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 05:54:21,735 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 05:54:21,736 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 05:54:21,736 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 05:54:21,737 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 05:54:21,737 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 05:54:21,737 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 05:54:21,737 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 05:54:21,738 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 05:54:21,738 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 05:54:21,738 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 05:54:21,738 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 05:54:21,739 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 05:54:21,739 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 05:54:21,739 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 05:54:21,739 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 05:54:21,739 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 05:54:21,740 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 05:54:21,740 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 05:54:21,740 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 05:54:21,740 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 05:54:21,740 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 05:54:21,741 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 05:54:21,741 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 05:54:21,741 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 05:54:21,741 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 05:54:21,741 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 05:54:21,742 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 05:54:21,742 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 05:54:21,742 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 05:54:21,742 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 05:54:21,742 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 05:54:21,743 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 05:54:21,743 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 05:54:21,743 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 05:54:21,743 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 05:54:21,743 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 05:54:21,744 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 05:54:21,744 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 05:54:21,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 05:54:21,793 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 05:54:21,797 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 05:54:21,799 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 05:54:21,799 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 05:54:21,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i [2018-01-21 05:54:21,977 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 05:54:21,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 05:54:21,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 05:54:21,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 05:54:21,989 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 05:54:21,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:54:21" (1/1) ... [2018-01-21 05:54:21,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3724a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:21, skipping insertion in model container [2018-01-21 05:54:21,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:54:21" (1/1) ... [2018-01-21 05:54:22,008 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:54:22,046 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:54:22,173 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:54:22,193 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:54:22,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22 WrapperNode [2018-01-21 05:54:22,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 05:54:22,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 05:54:22,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 05:54:22,204 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 05:54:22,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (1/1) ... [2018-01-21 05:54:22,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (1/1) ... [2018-01-21 05:54:22,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (1/1) ... [2018-01-21 05:54:22,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (1/1) ... [2018-01-21 05:54:22,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (1/1) ... [2018-01-21 05:54:22,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (1/1) ... [2018-01-21 05:54:22,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (1/1) ... [2018-01-21 05:54:22,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 05:54:22,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 05:54:22,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 05:54:22,247 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 05:54:22,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (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 05:54:22,306 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 05:54:22,306 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 05:54:22,306 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-01-21 05:54:22,307 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 05:54:22,307 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 05:54:22,307 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 05:54:22,307 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 05:54:22,307 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 05:54:22,307 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 05:54:22,307 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 05:54:22,308 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 05:54:22,308 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 05:54:22,308 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 05:54:22,308 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 05:54:22,308 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 05:54:22,308 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-01-21 05:54:22,309 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 05:54:22,309 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 05:54:22,309 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 05:54:22,627 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 05:54:22,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:54:22 BoogieIcfgContainer [2018-01-21 05:54:22,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 05:54:22,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 05:54:22,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 05:54:22,631 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 05:54:22,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 05:54:21" (1/3) ... [2018-01-21 05:54:22,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46604fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:54:22, skipping insertion in model container [2018-01-21 05:54:22,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:54:22" (2/3) ... [2018-01-21 05:54:22,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46604fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:54:22, skipping insertion in model container [2018-01-21 05:54:22,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:54:22" (3/3) ... [2018-01-21 05:54:22,636 INFO L105 eAbstractionObserver]: Analyzing ICFG list-ext_false-unreach-call_false-valid-deref.i [2018-01-21 05:54:22,645 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 05:54:22,654 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 05:54:22,702 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:54:22,702 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:54:22,702 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:54:22,702 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:54:22,703 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:54:22,703 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:54:22,703 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:54:22,703 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == exitErr0EnsuresViolation======== [2018-01-21 05:54:22,704 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:54:22,725 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-01-21 05:54:22,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 05:54:22,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 69 states. [2018-01-21 05:54:22,816 INFO L401 ceAbstractionStarter]: For program point exitErr0EnsuresViolation(line 525) no Hoare annotation was computed. [2018-01-21 05:54:22,817 INFO L401 ceAbstractionStarter]: For program point exitFINAL(lines 619 621) no Hoare annotation was computed. [2018-01-21 05:54:22,817 INFO L404 ceAbstractionStarter]: At program point exitENTRY(lines 619 621) the Hoare annotation is: true [2018-01-21 05:54:22,817 INFO L401 ceAbstractionStarter]: For program point L620(line 620) no Hoare annotation was computed. [2018-01-21 05:54:22,817 INFO L401 ceAbstractionStarter]: For program point exitEXIT(lines 619 621) no Hoare annotation was computed. [2018-01-21 05:54:22,817 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0EnsuresViolation(lines 1 671) no Hoare annotation was computed. [2018-01-21 05:54:22,818 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 671) no Hoare annotation was computed. [2018-01-21 05:54:22,818 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 671) the Hoare annotation is: true [2018-01-21 05:54:22,818 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 671) no Hoare annotation was computed. [2018-01-21 05:54:22,818 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 671) the Hoare annotation is: true [2018-01-21 05:54:22,818 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 671) no Hoare annotation was computed. [2018-01-21 05:54:22,819 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 671) the Hoare annotation is: true [2018-01-21 05:54:22,819 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startErr0EnsuresViolation(lines 1 671) no Hoare annotation was computed. [2018-01-21 05:54:22,819 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 671) no Hoare annotation was computed. [2018-01-21 05:54:22,819 INFO L401 ceAbstractionStarter]: For program point L641'''''(lines 641 648) no Hoare annotation was computed. [2018-01-21 05:54:22,819 INFO L404 ceAbstractionStarter]: At program point L664'''(lines 664 668) the Hoare annotation is: true [2018-01-21 05:54:22,819 INFO L401 ceAbstractionStarter]: For program point L659'(line 659) no Hoare annotation was computed. [2018-01-21 05:54:22,820 INFO L401 ceAbstractionStarter]: For program point L629(line 629) no Hoare annotation was computed. [2018-01-21 05:54:22,820 INFO L401 ceAbstractionStarter]: For program point L635'(line 635) no Hoare annotation was computed. [2018-01-21 05:54:22,820 INFO L401 ceAbstractionStarter]: For program point L664''''(lines 664 668) no Hoare annotation was computed. [2018-01-21 05:54:22,820 INFO L401 ceAbstractionStarter]: For program point L641''''''(lines 641 648) no Hoare annotation was computed. [2018-01-21 05:54:22,820 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 626 671) no Hoare annotation was computed. [2018-01-21 05:54:22,820 INFO L401 ceAbstractionStarter]: For program point L664'(line 664) no Hoare annotation was computed. [2018-01-21 05:54:22,821 INFO L404 ceAbstractionStarter]: At program point L653'''(lines 653 656) the Hoare annotation is: true [2018-01-21 05:54:22,821 INFO L401 ceAbstractionStarter]: For program point L641(lines 641 648) no Hoare annotation was computed. [2018-01-21 05:54:22,821 INFO L401 ceAbstractionStarter]: For program point L645(line 645) no Hoare annotation was computed. [2018-01-21 05:54:22,821 INFO L401 ceAbstractionStarter]: For program point L644(line 644) no Hoare annotation was computed. [2018-01-21 05:54:22,821 INFO L401 ceAbstractionStarter]: For program point L643(line 643) no Hoare annotation was computed. [2018-01-21 05:54:22,821 INFO L401 ceAbstractionStarter]: For program point L649(line 649) no Hoare annotation was computed. [2018-01-21 05:54:22,822 INFO L401 ceAbstractionStarter]: For program point L647(line 647) no Hoare annotation was computed. [2018-01-21 05:54:22,822 INFO L401 ceAbstractionStarter]: For program point L646(line 646) no Hoare annotation was computed. [2018-01-21 05:54:22,822 INFO L401 ceAbstractionStarter]: For program point L657'(line 657) no Hoare annotation was computed. [2018-01-21 05:54:22,822 INFO L404 ceAbstractionStarter]: At program point L645'(line 645) the Hoare annotation is: true [2018-01-21 05:54:22,822 INFO L401 ceAbstractionStarter]: For program point L633'(line 633) no Hoare annotation was computed. [2018-01-21 05:54:22,822 INFO L401 ceAbstractionStarter]: For program point L629'(line 629) no Hoare annotation was computed. [2018-01-21 05:54:22,823 INFO L401 ceAbstractionStarter]: For program point L637'''(line 637) no Hoare annotation was computed. [2018-01-21 05:54:22,823 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 626 671) no Hoare annotation was computed. [2018-01-21 05:54:22,823 INFO L401 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2018-01-21 05:54:22,823 INFO L401 ceAbstractionStarter]: For program point L633(lines 633 640) no Hoare annotation was computed. [2018-01-21 05:54:22,823 INFO L401 ceAbstractionStarter]: For program point L638(line 638) no Hoare annotation was computed. [2018-01-21 05:54:22,823 INFO L401 ceAbstractionStarter]: For program point L637(line 637) no Hoare annotation was computed. [2018-01-21 05:54:22,824 INFO L401 ceAbstractionStarter]: For program point L636(line 636) no Hoare annotation was computed. [2018-01-21 05:54:22,824 INFO L401 ceAbstractionStarter]: For program point L635(line 635) no Hoare annotation was computed. [2018-01-21 05:54:22,824 INFO L401 ceAbstractionStarter]: For program point L639(line 639) no Hoare annotation was computed. [2018-01-21 05:54:22,824 INFO L401 ceAbstractionStarter]: For program point L662(line 662) no Hoare annotation was computed. [2018-01-21 05:54:22,824 INFO L401 ceAbstractionStarter]: For program point L661(line 661) no Hoare annotation was computed. [2018-01-21 05:54:22,824 INFO L401 ceAbstractionStarter]: For program point L661''(lines 661 662) no Hoare annotation was computed. [2018-01-21 05:54:22,825 INFO L404 ceAbstractionStarter]: At program point L630'(line 630) the Hoare annotation is: true [2018-01-21 05:54:22,825 INFO L401 ceAbstractionStarter]: For program point L645'''(line 645) no Hoare annotation was computed. [2018-01-21 05:54:22,825 INFO L401 ceAbstractionStarter]: For program point L666(line 666) no Hoare annotation was computed. [2018-01-21 05:54:22,825 INFO L401 ceAbstractionStarter]: For program point L665(line 665) no Hoare annotation was computed. [2018-01-21 05:54:22,825 INFO L401 ceAbstractionStarter]: For program point L664(lines 664 668) no Hoare annotation was computed. [2018-01-21 05:54:22,826 INFO L401 ceAbstractionStarter]: For program point L669(line 669) no Hoare annotation was computed. [2018-01-21 05:54:22,826 INFO L401 ceAbstractionStarter]: For program point L655'(line 655) no Hoare annotation was computed. [2018-01-21 05:54:22,826 INFO L401 ceAbstractionStarter]: For program point L643'(line 643) no Hoare annotation was computed. [2018-01-21 05:54:22,826 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 626 671) no Hoare annotation was computed. [2018-01-21 05:54:22,826 INFO L401 ceAbstractionStarter]: For program point L655(line 655) no Hoare annotation was computed. [2018-01-21 05:54:22,826 INFO L401 ceAbstractionStarter]: For program point L653(lines 653 656) no Hoare annotation was computed. [2018-01-21 05:54:22,826 INFO L401 ceAbstractionStarter]: For program point L659(line 659) no Hoare annotation was computed. [2018-01-21 05:54:22,826 INFO L401 ceAbstractionStarter]: For program point L657(lines 657 660) no Hoare annotation was computed. [2018-01-21 05:54:22,827 INFO L404 ceAbstractionStarter]: At program point mainENTRY(lines 626 671) the Hoare annotation is: true [2018-01-21 05:54:22,827 INFO L404 ceAbstractionStarter]: At program point L633'''''(lines 633 640) the Hoare annotation is: true [2018-01-21 05:54:22,827 INFO L401 ceAbstractionStarter]: For program point L657'''(lines 657 660) no Hoare annotation was computed. [2018-01-21 05:54:22,827 INFO L401 ceAbstractionStarter]: For program point L657''''(lines 657 660) no Hoare annotation was computed. [2018-01-21 05:54:22,827 INFO L401 ceAbstractionStarter]: For program point L630'''(line 630) no Hoare annotation was computed. [2018-01-21 05:54:22,827 INFO L404 ceAbstractionStarter]: At program point L637'(line 637) the Hoare annotation is: true [2018-01-21 05:54:22,827 INFO L401 ceAbstractionStarter]: For program point L665'(line 665) no Hoare annotation was computed. [2018-01-21 05:54:22,828 INFO L401 ceAbstractionStarter]: For program point L653'(line 653) no Hoare annotation was computed. [2018-01-21 05:54:22,828 INFO L401 ceAbstractionStarter]: For program point L633'''(line 633) no Hoare annotation was computed. [2018-01-21 05:54:22,828 INFO L401 ceAbstractionStarter]: For program point L641'(line 641) no Hoare annotation was computed. [2018-01-21 05:54:22,828 INFO L401 ceAbstractionStarter]: For program point L641'''(line 641) no Hoare annotation was computed. [2018-01-21 05:54:22,828 INFO L401 ceAbstractionStarter]: For program point L666'(line 666) no Hoare annotation was computed. [2018-01-21 05:54:22,833 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:54:22,833 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:54:22,833 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:54:22,834 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:54:22,834 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:54:22,834 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:54:22,834 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:54:22,834 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 05:54:22,834 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:54:22,837 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-01-21 05:54:22,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 05:54:22,838 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:54:22,839 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 05:54:22,839 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 05:54:22,842 INFO L82 PathProgramCache]: Analyzing trace with hash 187264, now seen corresponding path program 1 times [2018-01-21 05:54:22,845 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:54:22,861 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:22,861 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:54:22,861 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:22,861 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:54:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:54:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:54:22,909 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 05:54:22,914 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 05:54:22,918 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:54:22,919 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:54:22,919 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:54:22,919 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:54:22,919 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:54:22,919 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:54:22,919 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:54:22,920 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 05:54:22,920 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:54:22,922 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-01-21 05:54:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-21 05:54:22,925 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:54:22,925 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:54:22,925 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:54:22,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1653990869, now seen corresponding path program 1 times [2018-01-21 05:54:22,926 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:54:22,927 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:22,927 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:54:22,927 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:22,927 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:54:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:54:22,952 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:54:23,067 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 05:54:23,069 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:54:23,069 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 05:54:23,069 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:54:23,072 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 05:54:23,086 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 05:54:23,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 05:54:23,088 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-01-21 05:54:23,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:54:23,107 INFO L93 Difference]: Finished difference Result 114 states and 137 transitions. [2018-01-21 05:54:23,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 05:54:23,108 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-01-21 05:54:23,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:54:23,115 INFO L225 Difference]: With dead ends: 114 [2018-01-21 05:54:23,115 INFO L226 Difference]: Without dead ends: 60 [2018-01-21 05:54:23,118 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 05:54:23,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-01-21 05:54:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-01-21 05:54:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-01-21 05:54:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2018-01-21 05:54:23,146 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 25 [2018-01-21 05:54:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:54:23,146 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2018-01-21 05:54:23,146 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 05:54:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2018-01-21 05:54:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-21 05:54:23,147 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:54:23,147 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:54:23,147 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:54:23,148 INFO L82 PathProgramCache]: Analyzing trace with hash -504410673, now seen corresponding path program 1 times [2018-01-21 05:54:23,148 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:54:23,148 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:23,149 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:54:23,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:23,149 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:54:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:54:23,186 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:54:23,263 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 05:54:23,263 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:54:23,264 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 05:54:23,264 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:54:23,266 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 05:54:23,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 05:54:23,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 05:54:23,266 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand 3 states. [2018-01-21 05:54:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:54:23,304 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2018-01-21 05:54:23,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 05:54:23,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-01-21 05:54:23,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:54:23,306 INFO L225 Difference]: With dead ends: 92 [2018-01-21 05:54:23,306 INFO L226 Difference]: Without dead ends: 76 [2018-01-21 05:54:23,307 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 05:54:23,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-01-21 05:54:23,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2018-01-21 05:54:23,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-01-21 05:54:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2018-01-21 05:54:23,313 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 37 [2018-01-21 05:54:23,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:54:23,314 INFO L432 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2018-01-21 05:54:23,314 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 05:54:23,314 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2018-01-21 05:54:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-01-21 05:54:23,315 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:54:23,315 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, 1, 1, 1] [2018-01-21 05:54:23,315 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:54:23,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1373568971, now seen corresponding path program 1 times [2018-01-21 05:54:23,315 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:54:23,316 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:23,316 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:54:23,316 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:23,316 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:54:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:54:23,333 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:54:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:54:23,439 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:54:23,439 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-21 05:54:23,439 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:54:23,439 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-21 05:54:23,440 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-21 05:54:23,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-21 05:54:23,440 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand 6 states. [2018-01-21 05:54:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:54:23,739 INFO L93 Difference]: Finished difference Result 169 states and 187 transitions. [2018-01-21 05:54:23,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-21 05:54:23,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2018-01-21 05:54:23,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:54:23,743 INFO L225 Difference]: With dead ends: 169 [2018-01-21 05:54:23,743 INFO L226 Difference]: Without dead ends: 145 [2018-01-21 05:54:23,744 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-01-21 05:54:23,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-01-21 05:54:23,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 79. [2018-01-21 05:54:23,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-01-21 05:54:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2018-01-21 05:54:23,751 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 42 [2018-01-21 05:54:23,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:54:23,752 INFO L432 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2018-01-21 05:54:23,752 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-21 05:54:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2018-01-21 05:54:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-01-21 05:54:23,753 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:54:23,753 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, 1, 1, 1] [2018-01-21 05:54:23,753 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:54:23,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1638677120, now seen corresponding path program 1 times [2018-01-21 05:54:23,753 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:54:23,754 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:23,754 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:54:23,754 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:23,754 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:54:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:54:23,769 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:54:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:54:23,830 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:54:23,830 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-21 05:54:23,830 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:54:23,831 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-21 05:54:23,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-21 05:54:23,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-21 05:54:23,831 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand 6 states. [2018-01-21 05:54:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:54:23,973 INFO L93 Difference]: Finished difference Result 134 states and 148 transitions. [2018-01-21 05:54:23,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-21 05:54:23,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2018-01-21 05:54:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:54:23,976 INFO L225 Difference]: With dead ends: 134 [2018-01-21 05:54:23,976 INFO L226 Difference]: Without dead ends: 103 [2018-01-21 05:54:23,976 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-01-21 05:54:23,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-01-21 05:54:23,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 74. [2018-01-21 05:54:23,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-01-21 05:54:23,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2018-01-21 05:54:23,986 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 42 [2018-01-21 05:54:23,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:54:23,987 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2018-01-21 05:54:23,987 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-21 05:54:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2018-01-21 05:54:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-01-21 05:54:23,988 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:54:23,989 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:54:23,989 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:54:23,989 INFO L82 PathProgramCache]: Analyzing trace with hash -322223851, now seen corresponding path program 1 times [2018-01-21 05:54:23,989 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:54:23,990 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:23,990 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:54:23,990 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:54:23,991 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:54:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:54:24,018 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:54:24,096 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-01-21 05:54:24,097 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:54:24,097 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:54:24,098 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 54 with the following transitions: [2018-01-21 05:54:24,101 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [8], [10], [14], [16], [19], [25], [46], [48], [51], [57], [59], [60], [61], [62], [68], [70], [71], [72], [76], [77], [81], [83], [86], [96], [98], [101], [103], [104], [105], [109], [116], [118], [122], [124], [127], [137], [138], [139], [146], [147], [152], [159], [160], [161], [162] [2018-01-21 05:54:24,159 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:54:24,160 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 05:55:30,990 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 05:55:30,991 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 05:55:30,992 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 05:55:30,992 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:55:30,992 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 05:55:30,999 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:55:30,999 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 05:55:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:55:31,048 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 05:55:31,060 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 05:55:31,061 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:55:31,063 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:55:31,063 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:55:31,064 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:55:31,064 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:55:31,064 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:55:31,064 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:55:31,064 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:55:31,064 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 05:55:31,064 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:55:31,066 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-01-21 05:55:31,066 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:55:31,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 05:55:31 BoogieIcfgContainer [2018-01-21 05:55:31,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 05:55:31,068 INFO L168 Benchmark]: Toolchain (without parser) took 69089.73 ms. Allocated memory was 300.9 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 259.1 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 470.4 MB. Max. memory is 5.3 GB. [2018-01-21 05:55:31,069 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 300.9 MB. Free memory is still 265.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 05:55:31,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.06 ms. Allocated memory is still 300.9 MB. Free memory was 258.1 MB in the beginning and 247.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. [2018-01-21 05:55:31,069 INFO L168 Benchmark]: Boogie Preprocessor took 42.55 ms. Allocated memory is still 300.9 MB. Free memory was 247.0 MB in the beginning and 245.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:55:31,069 INFO L168 Benchmark]: RCFGBuilder took 380.98 ms. Allocated memory is still 300.9 MB. Free memory was 245.0 MB in the beginning and 222.0 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:55:31,070 INFO L168 Benchmark]: TraceAbstraction took 68438.14 ms. Allocated memory was 300.9 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 221.0 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 432.3 MB. Max. memory is 5.3 GB. [2018-01-21 05:55:31,071 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 300.9 MB. Free memory is still 265.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 220.06 ms. Allocated memory is still 300.9 MB. Free memory was 258.1 MB in the beginning and 247.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 42.55 ms. Allocated memory is still 300.9 MB. Free memory was 247.0 MB in the beginning and 245.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 380.98 ms. Allocated memory is still 300.9 MB. Free memory was 245.0 MB in the beginning and 222.0 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 68438.14 ms. Allocated memory was 300.9 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 221.0 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 432.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 525]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: exitErr0EnsuresViolation CFG has 4 procedures, 72 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=69occurred 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, 11 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 11 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 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, 72 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=69occurred 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 54 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 4 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 72 locations, 4 error locations. TIMEOUT Result, 68.1s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 238 SDtfs, 167 SDslu, 412 SDs, 0 SdLazy, 233 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 66.8s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 105 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 13768 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 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 69 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 72 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=69occurred 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-ext_false-unreach-call_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_05-55-31-078.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_false-unreach-call_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_05-55-31-078.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_false-unreach-call_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_05-55-31-078.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_false-unreach-call_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_05-55-31-078.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_false-unreach-call_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_05-55-31-078.csv Completed graceful shutdown