java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf -i ../../../trunk/examples/svcomp/array-memsafety/mult_array_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 10:05:39,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 10:05:39,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 10:05:39,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 10:05:39,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 10:05:39,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 10:05:39,393 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 10:05:39,395 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 10:05:39,397 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 10:05:39,398 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 10:05:39,399 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 10:05:39,399 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 10:05:39,400 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 10:05:39,401 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 10:05:39,402 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 10:05:39,405 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 10:05:39,407 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 10:05:39,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 10:05:39,411 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 10:05:39,412 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 10:05:39,415 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 10:05:39,415 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 10:05:39,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 10:05:39,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 10:05:39,417 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 10:05:39,419 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 10:05:39,419 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 10:05:39,420 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 10:05:39,420 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 10:05:39,420 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 10:05:39,421 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 10:05:39,421 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf [2018-01-21 10:05:39,430 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 10:05:39,431 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 10:05:39,432 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 10:05:39,432 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 10:05:39,432 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 10:05:39,432 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 10:05:39,432 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-21 10:05:39,432 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 10:05:39,433 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 10:05:39,433 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 10:05:39,433 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 10:05:39,433 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 10:05:39,433 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 10:05:39,434 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 10:05:39,434 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 10:05:39,434 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 10:05:39,434 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 10:05:39,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 10:05:39,434 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 10:05:39,434 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 10:05:39,435 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 10:05:39,435 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 10:05:39,435 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 10:05:39,435 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 10:05:39,435 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 10:05:39,436 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 10:05:39,436 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 10:05:39,436 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 10:05:39,436 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 10:05:39,436 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 10:05:39,436 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 10:05:39,437 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 10:05:39,437 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 10:05:39,437 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 10:05:39,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 10:05:39,437 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 10:05:39,437 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 10:05:39,438 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 10:05:39,438 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 10:05:39,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 10:05:39,482 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 10:05:39,486 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 10:05:39,487 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 10:05:39,488 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 10:05:39,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/mult_array_unsafe_false-valid-deref.i [2018-01-21 10:05:39,662 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 10:05:39,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 10:05:39,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 10:05:39,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 10:05:39,671 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 10:05:39,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22535488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39, skipping insertion in model container [2018-01-21 10:05:39,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,689 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:05:39,727 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:05:39,849 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:05:39,867 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:05:39,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39 WrapperNode [2018-01-21 10:05:39,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 10:05:39,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 10:05:39,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 10:05:39,877 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 10:05:39,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (1/1) ... [2018-01-21 10:05:39,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 10:05:39,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 10:05:39,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 10:05:39,917 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 10:05:39,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 10:05:39,972 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 10:05:39,972 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 10:05:39,972 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 10:05:39,972 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 10:05:39,972 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 10:05:39,973 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 10:05:39,973 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 10:05:39,973 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 10:05:39,973 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 10:05:39,973 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 10:05:39,973 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 10:05:39,973 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 10:05:40,192 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 10:05:40,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:05:40 BoogieIcfgContainer [2018-01-21 10:05:40,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 10:05:40,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 10:05:40,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 10:05:40,196 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 10:05:40,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 10:05:39" (1/3) ... [2018-01-21 10:05:40,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390214fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:05:40, skipping insertion in model container [2018-01-21 10:05:40,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:05:39" (2/3) ... [2018-01-21 10:05:40,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390214fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:05:40, skipping insertion in model container [2018-01-21 10:05:40,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:05:40" (3/3) ... [2018-01-21 10:05:40,201 INFO L105 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe_false-valid-deref.i [2018-01-21 10:05:40,209 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 10:05:40,214 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 10:05:40,249 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:05:40,249 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:05:40,249 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:05:40,249 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:05:40,249 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:05:40,249 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:05:40,249 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:05:40,249 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 10:05:40,250 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:05:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 10:05:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 10:05:40,271 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:05:40,272 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 10:05:40,272 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 10:05:40,276 INFO L82 PathProgramCache]: Analyzing trace with hash 100907, now seen corresponding path program 1 times [2018-01-21 10:05:40,278 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:05:40,319 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:05:40,320 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:40,320 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:05:40,320 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:05:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:05:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:05:40,375 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 10:05:40,381 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:05:40,388 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:05:40,388 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:05:40,388 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:05:40,388 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:05:40,389 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:05:40,389 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:05:40,389 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:05:40,389 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 10:05:40,389 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:05:40,391 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 10:05:40,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-21 10:05:40,393 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:05:40,393 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:05:40,393 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:05:40,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1756096489, now seen corresponding path program 1 times [2018-01-21 10:05:40,394 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:05:40,395 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:05:40,395 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:40,395 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:05:40,396 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:05:40,414 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-21 10:05:40,414 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-21 10:05:40,414 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 [2018-01-21 10:05:40,421 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:40,421 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-21 10:05:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:05:40,458 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-01-21 10:05:40,460 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 10:05:40,460 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 10:05:40,460 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 [2018-01-21 10:05:40,467 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:40,467 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 10:05:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:05:40,506 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 10:05:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:05:40,630 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 10:05:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:05:40,707 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:05:40,707 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-01-21 10:05:40,707 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:05:40,709 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-21 10:05:40,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-21 10:05:40,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 10:05:40,790 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 6 states. [2018-01-21 10:05:40,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:05:40,920 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-01-21 10:05:40,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-21 10:05:40,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-01-21 10:05:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:05:40,930 INFO L225 Difference]: With dead ends: 60 [2018-01-21 10:05:40,930 INFO L226 Difference]: Without dead ends: 35 [2018-01-21 10:05:40,934 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 [2018-01-21 10:05:40,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-21 10:05:40,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-21 10:05:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-21 10:05:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-01-21 10:05:40,964 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 21 [2018-01-21 10:05:40,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:05:40,964 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-01-21 10:05:40,964 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-21 10:05:40,965 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-01-21 10:05:40,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-21 10:05:40,966 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:05:40,966 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] [2018-01-21 10:05:40,966 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:05:40,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1252120768, now seen corresponding path program 1 times [2018-01-21 10:05:40,966 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:05:40,967 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:05:40,967 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:40,967 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:05:40,967 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:05:40,977 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-21 10:05:40,977 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-21 10:05:40,977 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 [2018-01-21 10:05:40,985 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:40,985 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-01-21 10:05:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:05:41,016 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-01-21 10:05:41,016 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 10:05:41,016 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 10:05:41,016 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 [2018-01-21 10:05:41,021 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:41,022 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 10:05:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:05:41,041 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 10:05:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:05:41,060 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 10:05:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:05:41,112 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:05:41,112 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-01-21 10:05:41,112 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:05:41,113 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 10:05:41,113 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 10:05:41,113 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-21 10:05:41,113 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 4 states. [2018-01-21 10:05:41,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:05:41,171 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-01-21 10:05:41,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 10:05:41,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-01-21 10:05:41,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:05:41,173 INFO L225 Difference]: With dead ends: 56 [2018-01-21 10:05:41,174 INFO L226 Difference]: Without dead ends: 40 [2018-01-21 10:05:41,175 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 [2018-01-21 10:05:41,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-21 10:05:41,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2018-01-21 10:05:41,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-01-21 10:05:41,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-01-21 10:05:41,181 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 27 [2018-01-21 10:05:41,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:05:41,182 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-01-21 10:05:41,182 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 10:05:41,182 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-01-21 10:05:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-21 10:05:41,183 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:05:41,183 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] [2018-01-21 10:05:41,183 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:05:41,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1880809997, now seen corresponding path program 1 times [2018-01-21 10:05:41,184 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:05:41,184 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:05:41,185 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:41,185 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:05:41,185 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:05:41,193 ERROR L243 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-01-21 10:05:41,193 INFO L266 seRefinementStrategy]: Advancing trace checker [2018-01-21 10:05:41,194 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) [2018-01-21 10:05:41,204 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:05:41,204 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-01-21 10:05:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:05:41,247 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-01-21 10:05:41,249 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] [2018-01-21 10:05:41,300 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 10:05:41,300 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 10:05:45,170 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) [2018-01-21 10:05:45,173 INFO L168 Benchmark]: Toolchain (without parser) took 5510.29 ms. Allocated memory was 297.8 MB in the beginning and 698.4 MB in the end (delta: 400.6 MB). Free memory was 256.1 MB in the beginning and 482.9 MB in the end (delta: -226.7 MB). Peak memory consumption was 173.8 MB. Max. memory is 5.3 GB. [2018-01-21 10:05:45,174 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 297.8 MB. Free memory is still 262.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 10:05:45,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.73 ms. Allocated memory is still 297.8 MB. Free memory was 255.1 MB in the beginning and 245.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:05:45,175 INFO L168 Benchmark]: Boogie Preprocessor took 39.69 ms. Allocated memory is still 297.8 MB. Free memory was 245.2 MB in the beginning and 243.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:05:45,175 INFO L168 Benchmark]: RCFGBuilder took 276.50 ms. Allocated memory is still 297.8 MB. Free memory was 243.2 MB in the beginning and 227.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. [2018-01-21 10:05:45,175 INFO L168 Benchmark]: TraceAbstraction took 4978.35 ms. Allocated memory was 297.8 MB in the beginning and 698.4 MB in the end (delta: 400.6 MB). Free memory was 227.6 MB in the beginning and 482.9 MB in the end (delta: -255.3 MB). Peak memory consumption was 145.3 MB. Max. memory is 5.3 GB. [2018-01-21 10:05:45,177 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 297.8 MB. Free memory is still 262.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 209.73 ms. Allocated memory is still 297.8 MB. Free memory was 255.1 MB in the beginning and 245.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 39.69 ms. Allocated memory is still 297.8 MB. Free memory was 245.2 MB in the beginning and 243.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 276.50 ms. Allocated memory is still 297.8 MB. Free memory was 243.2 MB in the beginning and 227.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4978.35 ms. Allocated memory was 297.8 MB in the beginning and 698.4 MB in the end (delta: 400.6 MB). Free memory was 227.6 MB in the beginning and 482.9 MB in the end (delta: -255.3 MB). Peak memory consumption was 145.3 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: - 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_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_10-05-45-184.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_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_10-05-45-184.csv Received shutdown request...