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_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 22:24:41,535 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 22:24:41,537 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 22:24:41,550 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 22:24:41,550 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 22:24:41,551 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 22:24:41,552 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 22:24:41,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 22:24:41,556 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 22:24:41,557 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 22:24:41,558 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 22:24:41,558 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 22:24:41,559 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 22:24:41,559 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 22:24:41,560 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 22:24:41,563 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 22:24:41,565 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 22:24:41,567 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 22:24:41,568 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 22:24:41,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 22:24:41,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-20 22:24:41,572 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-20 22:24:41,572 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-20 22:24:41,574 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-20 22:24:41,574 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-20 22:24:41,576 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-20 22:24:41,576 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-20 22:24:41,577 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-20 22:24:41,577 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-20 22:24:41,577 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 22:24:41,578 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 22:24:41,578 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-20 22:24:41,588 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 22:24:41,589 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 22:24:41,589 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 22:24:41,589 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 22:24:41,590 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 22:24:41,590 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 22:24:41,590 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 22:24:41,591 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 22:24:41,591 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 22:24:41,591 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 22:24:41,591 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 22:24:41,592 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 22:24:41,592 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 22:24:41,592 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 22:24:41,592 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 22:24:41,592 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 22:24:41,593 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 22:24:41,593 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 22:24:41,593 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 22:24:41,593 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 22:24:41,593 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 22:24:41,594 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 22:24:41,594 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 22:24:41,594 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 22:24:41,594 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 22:24:41,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 22:24:41,595 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 22:24:41,595 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 22:24:41,595 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 22:24:41,595 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 22:24:41,595 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 22:24:41,596 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-20 22:24:41,596 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 22:24:41,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 22:24:41,596 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 22:24:41,597 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 22:24:41,597 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 22:24:41,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 22:24:41,643 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 22:24:41,646 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 22:24:41,647 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 22:24:41,648 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 22:24:41,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-01-20 22:24:41,824 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 22:24:41,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 22:24:41,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 22:24:41,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 22:24:41,835 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 22:24:41,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:24:41" (1/1) ... [2018-01-20 22:24:41,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3724a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:41, skipping insertion in model container [2018-01-20 22:24:41,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:24:41" (1/1) ... [2018-01-20 22:24:41,858 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 22:24:41,901 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 22:24:42,027 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 22:24:42,046 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 22:24:42,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42 WrapperNode [2018-01-20 22:24:42,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 22:24:42,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 22:24:42,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 22:24:42,057 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 22:24:42,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (1/1) ... [2018-01-20 22:24:42,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (1/1) ... [2018-01-20 22:24:42,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (1/1) ... [2018-01-20 22:24:42,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (1/1) ... [2018-01-20 22:24:42,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (1/1) ... [2018-01-20 22:24:42,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (1/1) ... [2018-01-20 22:24:42,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (1/1) ... [2018-01-20 22:24:42,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 22:24:42,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 22:24:42,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 22:24:42,097 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 22:24:42,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (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 22:24:42,146 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 22:24:42,146 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 22:24:42,146 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 22:24:42,146 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-20 22:24:42,147 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-20 22:24:42,147 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 22:24:42,147 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 22:24:42,147 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 22:24:42,147 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 22:24:42,147 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 22:24:42,148 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-20 22:24:42,148 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-20 22:24:42,148 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 22:24:42,148 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-20 22:24:42,148 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 22:24:42,148 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 22:24:42,149 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 22:24:42,521 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 22:24:42,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:24:42 BoogieIcfgContainer [2018-01-20 22:24:42,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 22:24:42,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 22:24:42,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 22:24:42,525 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 22:24:42,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 10:24:41" (1/3) ... [2018-01-20 22:24:42,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385822d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:24:42, skipping insertion in model container [2018-01-20 22:24:42,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:24:42" (2/3) ... [2018-01-20 22:24:42,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385822d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:24:42, skipping insertion in model container [2018-01-20 22:24:42,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:24:42" (3/3) ... [2018-01-20 22:24:42,529 INFO L105 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-01-20 22:24:42,535 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 22:24:42,541 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-20 22:24:42,580 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:24:42,580 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:24:42,580 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:24:42,580 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:24:42,580 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:24:42,580 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:24:42,580 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:24:42,580 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 22:24:42,581 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:24:42,597 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-01-20 22:24:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 22:24:42,603 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:24:42,604 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 22:24:42,604 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 22:24:42,608 INFO L82 PathProgramCache]: Analyzing trace with hash 192421, now seen corresponding path program 1 times [2018-01-20 22:24:42,609 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:24:42,610 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:24:42,650 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:42,650 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:24:42,650 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:24:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:24:42,708 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:24:42,716 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:24:42,724 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:24:42,724 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:24:42,724 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:24:42,724 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:24:42,724 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:24:42,724 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:24:42,725 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:24:42,725 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 22:24:42,725 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:24:42,728 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-01-20 22:24:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-20 22:24:42,730 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:24:42,730 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:24:42,731 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 22:24:42,731 INFO L82 PathProgramCache]: Analyzing trace with hash 722719466, now seen corresponding path program 1 times [2018-01-20 22:24:42,731 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:24:42,731 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:24:42,732 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:42,732 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:24:42,732 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:24:42,769 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:24:42,900 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 22:24:42,903 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:24:42,903 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:24:42,904 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 22:24:42,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 22:24:42,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 22:24:42,918 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 2 states. [2018-01-20 22:24:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:24:42,941 INFO L93 Difference]: Finished difference Result 133 states and 162 transitions. [2018-01-20 22:24:42,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 22:24:42,942 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2018-01-20 22:24:42,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:24:42,952 INFO L225 Difference]: With dead ends: 133 [2018-01-20 22:24:42,953 INFO L226 Difference]: Without dead ends: 73 [2018-01-20 22:24:42,955 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 22:24:42,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-01-20 22:24:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-01-20 22:24:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-20 22:24:42,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2018-01-20 22:24:42,990 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 31 [2018-01-20 22:24:42,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:24:42,991 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2018-01-20 22:24:42,991 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 22:24:42,991 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2018-01-20 22:24:42,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-20 22:24:42,993 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:24:42,993 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:24:42,993 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 22:24:42,993 INFO L82 PathProgramCache]: Analyzing trace with hash 387707444, now seen corresponding path program 1 times [2018-01-20 22:24:42,993 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:24:42,993 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:24:42,994 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:42,995 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:24:42,995 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:24:43,030 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:24:43,139 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 22:24:43,139 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:24:43,139 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-20 22:24:43,140 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 22:24:43,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 22:24:43,141 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-20 22:24:43,141 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand 5 states. [2018-01-20 22:24:43,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:24:43,323 INFO L93 Difference]: Finished difference Result 118 states and 130 transitions. [2018-01-20 22:24:43,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-20 22:24:43,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-01-20 22:24:43,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:24:43,329 INFO L225 Difference]: With dead ends: 118 [2018-01-20 22:24:43,329 INFO L226 Difference]: Without dead ends: 113 [2018-01-20 22:24:43,330 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-20 22:24:43,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-01-20 22:24:43,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 90. [2018-01-20 22:24:43,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-01-20 22:24:43,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2018-01-20 22:24:43,343 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 37 [2018-01-20 22:24:43,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:24:43,343 INFO L432 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2018-01-20 22:24:43,343 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 22:24:43,343 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2018-01-20 22:24:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-20 22:24:43,345 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:24:43,345 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:24:43,345 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 22:24:43,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1479512725, now seen corresponding path program 1 times [2018-01-20 22:24:43,346 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:24:43,346 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:24:43,347 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:43,347 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:24:43,347 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:24:43,370 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:24:43,459 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 22:24:43,459 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:24:43,459 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-20 22:24:43,460 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 22:24:43,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 22:24:43,460 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-20 22:24:43,460 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 5 states. [2018-01-20 22:24:43,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:24:43,707 INFO L93 Difference]: Finished difference Result 144 states and 160 transitions. [2018-01-20 22:24:43,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 22:24:43,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-01-20 22:24:43,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:24:43,708 INFO L225 Difference]: With dead ends: 144 [2018-01-20 22:24:43,709 INFO L226 Difference]: Without dead ends: 139 [2018-01-20 22:24:43,709 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-20 22:24:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-01-20 22:24:43,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 75. [2018-01-20 22:24:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-01-20 22:24:43,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2018-01-20 22:24:43,716 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 41 [2018-01-20 22:24:43,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:24:43,717 INFO L432 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2018-01-20 22:24:43,717 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 22:24:43,717 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2018-01-20 22:24:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-01-20 22:24:43,718 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:24:43,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:24:43,718 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 22:24:43,718 INFO L82 PathProgramCache]: Analyzing trace with hash -832067523, now seen corresponding path program 1 times [2018-01-20 22:24:43,718 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:24:43,718 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:24:43,719 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:43,719 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:24:43,719 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:24:43,745 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:24:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:24:43,906 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 22:24:43,906 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 22:24:43,916 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:24:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:24:43,961 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 22:24:44,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-20 22:24:44,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-20 22:24:44,029 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,030 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,037 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,037 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2018-01-20 22:24:44,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-01-20 22:24:44,053 INFO L700 Elim1Store]: detected not equals via solver [2018-01-20 22:24:44,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-01-20 22:24:44,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,060 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,063 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:18 [2018-01-20 22:24:44,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-01-20 22:24:44,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-01-20 22:24:44,097 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,102 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-20 22:24:44,104 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:4 [2018-01-20 22:24:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-20 22:24:44,156 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 22:24:44,156 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 11 [2018-01-20 22:24:44,157 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-20 22:24:44,157 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-20 22:24:44,157 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-01-20 22:24:44,157 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand 11 states. [2018-01-20 22:24:44,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:24:44,633 INFO L93 Difference]: Finished difference Result 170 states and 189 transitions. [2018-01-20 22:24:44,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-20 22:24:44,634 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 42 [2018-01-20 22:24:44,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:24:44,636 INFO L225 Difference]: With dead ends: 170 [2018-01-20 22:24:44,636 INFO L226 Difference]: Without dead ends: 157 [2018-01-20 22:24:44,637 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-01-20 22:24:44,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-01-20 22:24:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 102. [2018-01-20 22:24:44,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-01-20 22:24:44,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2018-01-20 22:24:44,650 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 42 [2018-01-20 22:24:44,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:24:44,651 INFO L432 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2018-01-20 22:24:44,651 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-20 22:24:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2018-01-20 22:24:44,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-01-20 22:24:44,653 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:24:44,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:24:44,653 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 22:24:44,654 INFO L82 PathProgramCache]: Analyzing trace with hash -300016516, now seen corresponding path program 1 times [2018-01-20 22:24:44,654 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:24:44,654 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:24:44,655 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:44,655 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:24:44,656 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:24:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:24:44,676 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:24:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 22:24:44,983 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 22:24:44,983 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP 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 22:24:44,990 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:24:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:24:45,017 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 22:24:45,043 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-20 22:24:45,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-01-20 22:24:45,071 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:68 [2018-01-20 22:24:45,092 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 7924 column 44: unknown constant v_DerPreprocessor_1 at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1362) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:582) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:146) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript$DiffTransformer.checkOrAddAxiom(DiffWrapperScript.java:95) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript$DiffTransformer.convertApplicationTerm(DiffWrapperScript.java:105) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:297) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:239) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:198) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:998) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:942) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:355) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:573) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) 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 22:24:45,095 INFO L168 Benchmark]: Toolchain (without parser) took 3270.96 ms. Allocated memory was 304.6 MB in the beginning and 481.3 MB in the end (delta: 176.7 MB). Free memory was 262.9 MB in the beginning and 338.7 MB in the end (delta: -75.8 MB). Peak memory consumption was 100.9 MB. Max. memory is 5.3 GB. [2018-01-20 22:24:45,097 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 304.6 MB. Free memory is still 268.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 22:24:45,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.99 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 249.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-20 22:24:45,098 INFO L168 Benchmark]: Boogie Preprocessor took 39.70 ms. Allocated memory is still 304.6 MB. Free memory was 249.9 MB in the beginning and 247.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-20 22:24:45,098 INFO L168 Benchmark]: RCFGBuilder took 425.12 ms. Allocated memory is still 304.6 MB. Free memory was 247.9 MB in the beginning and 222.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 5.3 GB. [2018-01-20 22:24:45,099 INFO L168 Benchmark]: TraceAbstraction took 2571.39 ms. Allocated memory was 304.6 MB in the beginning and 481.3 MB in the end (delta: 176.7 MB). Free memory was 222.3 MB in the beginning and 338.7 MB in the end (delta: -116.5 MB). Peak memory consumption was 60.2 MB. Max. memory is 5.3 GB. [2018-01-20 22:24:45,100 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 304.6 MB. Free memory is still 268.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 226.99 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 249.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 39.70 ms. Allocated memory is still 304.6 MB. Free memory was 249.9 MB in the beginning and 247.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 425.12 ms. Allocated memory is still 304.6 MB. Free memory was 247.9 MB in the beginning and 222.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2571.39 ms. Allocated memory was 304.6 MB in the beginning and 481.3 MB in the end (delta: 176.7 MB). Free memory was 222.3 MB in the beginning and 338.7 MB in the end (delta: -116.5 MB). Peak memory consumption was 60.2 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, 79 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=79occurred 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: SMTLIBException: line 7924 column 44: unknown constant v_DerPreprocessor_1 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 7924 column 44: unknown constant v_DerPreprocessor_1: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1362) 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/dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_22-24-45-110.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_22-24-45-110.csv Received shutdown request...