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/array-memsafety/mult_array_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 23:23:19,951 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 23:23:19,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 23:23:19,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 23:23:19,967 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 23:23:19,968 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 23:23:19,969 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 23:23:19,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 23:23:19,973 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 23:23:19,974 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 23:23:19,974 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 23:23:19,975 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 23:23:19,975 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 23:23:19,976 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 23:23:19,977 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 23:23:19,979 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 23:23:19,982 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 23:23:19,983 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 23:23:19,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 23:23:19,986 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 23:23:19,988 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-20 23:23:19,989 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-20 23:23:19,989 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-20 23:23:19,990 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-20 23:23:19,990 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-20 23:23:19,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-20 23:23:19,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-20 23:23:19,993 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-20 23:23:19,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-20 23:23:19,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 23:23:19,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 23:23:19,994 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 [2018-01-20 23:23:20,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 23:23:20,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 23:23:20,006 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 23:23:20,006 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 23:23:20,006 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 23:23:20,007 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 23:23:20,007 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 23:23:20,007 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 23:23:20,008 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 23:23:20,008 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 23:23:20,008 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 23:23:20,008 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 23:23:20,008 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 23:23:20,009 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 23:23:20,009 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 23:23:20,009 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 23:23:20,009 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 23:23:20,009 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 23:23:20,010 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 23:23:20,010 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 23:23:20,010 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 23:23:20,010 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 23:23:20,010 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 23:23:20,011 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 23:23:20,011 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 23:23:20,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 23:23:20,011 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 23:23:20,011 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 23:23:20,012 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 23:23:20,012 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 23:23:20,012 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 23:23:20,012 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-20 23:23:20,012 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 23:23:20,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 23:23:20,013 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 23:23:20,013 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-20 23:23:20,014 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 23:23:20,014 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 23:23:20,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 23:23:20,064 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 23:23:20,068 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 23:23:20,069 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 23:23:20,070 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 23:23:20,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/mult_array_unsafe_false-valid-deref.i [2018-01-20 23:23:20,211 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 23:23:20,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 23:23:20,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 23:23:20,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 23:23:20,222 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 23:23:20,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e99cb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20, skipping insertion in model container [2018-01-20 23:23:20,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,241 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:23:20,281 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:23:20,387 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:23:20,402 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:23:20,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20 WrapperNode [2018-01-20 23:23:20,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 23:23:20,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 23:23:20,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 23:23:20,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 23:23:20,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (1/1) ... [2018-01-20 23:23:20,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 23:23:20,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 23:23:20,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 23:23:20,439 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 23:23:20,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (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 [2018-01-20 23:23:20,496 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 23:23:20,497 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 23:23:20,497 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 23:23:20,497 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 23:23:20,497 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 23:23:20,497 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 23:23:20,497 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 23:23:20,497 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 23:23:20,498 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 23:23:20,498 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 23:23:20,498 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 23:23:20,498 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 23:23:20,684 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 23:23:20,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:23:20 BoogieIcfgContainer [2018-01-20 23:23:20,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 23:23:20,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 23:23:20,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 23:23:20,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 23:23:20,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 11:23:20" (1/3) ... [2018-01-20 23:23:20,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404c9742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:23:20, skipping insertion in model container [2018-01-20 23:23:20,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:23:20" (2/3) ... [2018-01-20 23:23:20,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404c9742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:23:20, skipping insertion in model container [2018-01-20 23:23:20,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:23:20" (3/3) ... [2018-01-20 23:23:20,692 INFO L105 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe_false-valid-deref.i [2018-01-20 23:23:20,701 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 23:23:20,707 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-20 23:23:20,741 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:23:20,741 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:23:20,741 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:23:20,741 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:23:20,741 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:23:20,741 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:23:20,742 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:23:20,742 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 23:23:20,742 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:23:20,759 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-20 23:23:20,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 23:23:20,764 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:20,765 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 23:23:20,765 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 23:23:20,768 INFO L82 PathProgramCache]: Analyzing trace with hash 100907, now seen corresponding path program 1 times [2018-01-20 23:23:20,771 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:20,811 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:20,812 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:20,812 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:20,812 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:23:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:23:20,889 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:23:20,895 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:23:20,901 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:23:20,901 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:23:20,901 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:23:20,902 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:23:20,902 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:23:20,902 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:23:20,902 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:23:20,902 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 23:23:20,902 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:23:20,904 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-20 23:23:20,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-20 23:23:20,906 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:20,906 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] [2018-01-20 23:23:20,906 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:23:20,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1756096489, now seen corresponding path program 1 times [2018-01-20 23:23:20,906 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:20,907 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:20,908 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:20,908 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:20,908 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:20,926 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-20 23:23:20,927 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-20 23:23:20,927 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-20 23:23:20,945 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:20,945 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-20 23:23:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:23:20,984 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-01-20 23:23:20,986 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-20 23:23:20,986 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 23:23:20,986 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 23:23:20,998 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:20,999 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-20 23:23:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:23:21,042 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 23:23:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:23:21,179 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-20 23:23:21,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:23:21,235 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:23:21,235 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-01-20 23:23:21,235 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:23:21,237 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-20 23:23:21,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-20 23:23:21,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-20 23:23:21,315 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 6 states. [2018-01-20 23:23:21,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:23:21,439 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-01-20 23:23:21,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-20 23:23:21,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-01-20 23:23:21,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:23:21,451 INFO L225 Difference]: With dead ends: 60 [2018-01-20 23:23:21,451 INFO L226 Difference]: Without dead ends: 35 [2018-01-20 23:23:21,454 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-01-20 23:23:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-20 23:23:21,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-20 23:23:21,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-20 23:23:21,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-01-20 23:23:21,491 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 21 [2018-01-20 23:23:21,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:23:21,491 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-01-20 23:23:21,492 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-20 23:23:21,492 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-01-20 23:23:21,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-20 23:23:21,493 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:21,493 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:23:21,493 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:23:21,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1252120768, now seen corresponding path program 1 times [2018-01-20 23:23:21,493 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:21,494 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:21,495 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:21,495 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:21,495 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:21,504 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-20 23:23:21,505 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-20 23:23:21,505 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-20 23:23:21,513 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:21,514 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-20 23:23:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:23:21,547 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-01-20 23:23:21,547 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-20 23:23:21,547 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 23:23:21,547 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 23:23:21,552 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:21,552 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-20 23:23:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:23:21,569 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 23:23:21,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:23:21,585 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-20 23:23:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:23:21,626 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:23:21,626 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-01-20 23:23:21,627 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:23:21,627 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 23:23:21,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 23:23:21,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 23:23:21,628 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 4 states. [2018-01-20 23:23:21,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:23:21,685 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-01-20 23:23:21,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 23:23:21,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-01-20 23:23:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:23:21,687 INFO L225 Difference]: With dead ends: 56 [2018-01-20 23:23:21,687 INFO L226 Difference]: Without dead ends: 40 [2018-01-20 23:23:21,688 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 23:23:21,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-20 23:23:21,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2018-01-20 23:23:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-01-20 23:23:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-01-20 23:23:21,695 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 27 [2018-01-20 23:23:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:23:21,695 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-01-20 23:23:21,695 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 23:23:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-01-20 23:23:21,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-20 23:23:21,697 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:23:21,697 INFO L322 BasicCegarLoop]: trace histogram [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] [2018-01-20 23:23:21,697 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:23:21,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1880809997, now seen corresponding path program 1 times [2018-01-20 23:23:21,697 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:23:21,698 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:21,699 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:21,699 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:23:21,699 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:23:21,707 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-20 23:23:21,708 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-20 23:23:21,708 INFO L164 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-20 23:23:21,720 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:23:21,720 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-20 23:23:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:23:21,772 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-01-20 23:23:21,774 INFO L201 CegarAbsIntRunner]: [0], [1], [6], [7], [10], [14], [17], [21], [22], [23], [24], [32], [36], [39], [41], [42], [43], [45], [49], [53], [56], [67], [68], [69], [70], [71], [72], [74], [75], [76], [77] [2018-01-20 23:23:21,819 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-20 23:23:21,819 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-20 23:23:24,840 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for v_weq1_1 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:87) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqPredicate.(EqPredicate.java:65) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqStateFactory.stateToPredicate(EqStateFactory.java:112) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqState.toEqPredicate(EqState.java:224) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqPostOperator.apply(EqPostOperator.java:121) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.vp.EqPostOperator.apply(EqPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$16(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:443) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:148) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:388) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:157) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-20 23:23:24,842 INFO L168 Benchmark]: Toolchain (without parser) took 4630.75 ms. Allocated memory was 304.1 MB in the beginning and 745.5 MB in the end (delta: 441.5 MB). Free memory was 262.4 MB in the beginning and 508.6 MB in the end (delta: -246.2 MB). Peak memory consumption was 195.2 MB. Max. memory is 5.3 GB. [2018-01-20 23:23:24,844 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:23:24,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.59 ms. Allocated memory is still 304.1 MB. Free memory was 261.4 MB in the beginning and 251.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-20 23:23:24,844 INFO L168 Benchmark]: Boogie Preprocessor took 30.58 ms. Allocated memory is still 304.1 MB. Free memory was 251.4 MB in the beginning and 250.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-20 23:23:24,845 INFO L168 Benchmark]: RCFGBuilder took 245.88 ms. Allocated memory is still 304.1 MB. Free memory was 249.4 MB in the beginning and 233.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 5.3 GB. [2018-01-20 23:23:24,845 INFO L168 Benchmark]: TraceAbstraction took 4156.19 ms. Allocated memory was 304.1 MB in the beginning and 745.5 MB in the end (delta: 441.5 MB). Free memory was 233.7 MB in the beginning and 508.6 MB in the end (delta: -274.9 MB). Peak memory consumption was 166.5 MB. Max. memory is 5.3 GB. [2018-01-20 23:23:24,846 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 190.59 ms. Allocated memory is still 304.1 MB. Free memory was 261.4 MB in the beginning and 251.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.58 ms. Allocated memory is still 304.1 MB. Free memory was 251.4 MB in the beginning and 250.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 245.88 ms. Allocated memory is still 304.1 MB. Free memory was 249.4 MB in the beginning and 233.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4156.19 ms. Allocated memory was 304.1 MB in the beginning and 745.5 MB in the end (delta: 441.5 MB). Free memory was 233.7 MB in the beginning and 508.6 MB in the end (delta: -274.9 MB). Peak memory consumption was 166.5 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: - 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 3 procedures, 42 locations, 3 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=42occurred 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 - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for v_weq1_1 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for v_weq1_1: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:87) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult_array_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_23-23-24-853.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult_array_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_23-23-24-853.csv Received shutdown request...