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_preciseopt.epf -i ../../../trunk/examples/svcomp/memory-alloca/c.03-alloca_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 08:40:35,624 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 08:40:35,626 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 08:40:35,638 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 08:40:35,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 08:40:35,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 08:40:35,640 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 08:40:35,642 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 08:40:35,643 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 08:40:35,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 08:40:35,645 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 08:40:35,645 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 08:40:35,645 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 08:40:35,647 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 08:40:35,648 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 08:40:35,650 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 08:40:35,652 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 08:40:35,654 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 08:40:35,656 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 08:40:35,657 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 08:40:35,659 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 08:40:35,664 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 08:40:35,665 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 08:40:35,665 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_preciseopt.epf [2018-01-21 08:40:35,675 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 08:40:35,676 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 08:40:35,676 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 08:40:35,677 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 08:40:35,677 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 08:40:35,677 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 08:40:35,677 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-21 08:40:35,677 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 08:40:35,678 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 08:40:35,678 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 08:40:35,679 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 08:40:35,679 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 08:40:35,679 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 08:40:35,679 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 08:40:35,679 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 08:40:35,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 08:40:35,680 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 08:40:35,680 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 08:40:35,680 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 08:40:35,680 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 08:40:35,680 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 08:40:35,681 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 08:40:35,681 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 08:40:35,681 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 08:40:35,681 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 08:40:35,682 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 08:40:35,682 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 08:40:35,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 08:40:35,682 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 08:40:35,682 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 08:40:35,683 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 08:40:35,683 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 08:40:35,683 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 08:40:35,683 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 08:40:35,683 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 08:40:35,684 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 08:40:35,684 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 08:40:35,684 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 08:40:35,685 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 08:40:35,685 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 08:40:35,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 08:40:35,733 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 08:40:35,737 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 08:40:35,738 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 08:40:35,739 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 08:40:35,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memory-alloca/c.03-alloca_true-valid-memsafety.i [2018-01-21 08:40:35,928 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 08:40:35,933 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 08:40:35,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 08:40:35,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 08:40:35,939 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 08:40:35,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:40:35" (1/1) ... [2018-01-21 08:40:35,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98eaffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:35, skipping insertion in model container [2018-01-21 08:40:35,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:40:35" (1/1) ... [2018-01-21 08:40:35,957 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:40:35,994 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:40:36,112 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:40:36,130 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:40:36,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36 WrapperNode [2018-01-21 08:40:36,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 08:40:36,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 08:40:36,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 08:40:36,139 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 08:40:36,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (1/1) ... [2018-01-21 08:40:36,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (1/1) ... [2018-01-21 08:40:36,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (1/1) ... [2018-01-21 08:40:36,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (1/1) ... [2018-01-21 08:40:36,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (1/1) ... [2018-01-21 08:40:36,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (1/1) ... [2018-01-21 08:40:36,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (1/1) ... [2018-01-21 08:40:36,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 08:40:36,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 08:40:36,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 08:40:36,176 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 08:40:36,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (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 08:40:36,223 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 08:40:36,223 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 08:40:36,223 INFO L136 BoogieDeclarations]: Found implementation of procedure test_fun [2018-01-21 08:40:36,223 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 08:40:36,224 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 08:40:36,224 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 08:40:36,224 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 08:40:36,224 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 08:40:36,224 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 08:40:36,224 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 08:40:36,224 INFO L128 BoogieDeclarations]: Found specification of procedure test_fun [2018-01-21 08:40:36,224 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 08:40:36,225 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 08:40:36,225 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 08:40:36,434 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 08:40:36,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:40:36 BoogieIcfgContainer [2018-01-21 08:40:36,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 08:40:36,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 08:40:36,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 08:40:36,439 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 08:40:36,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 08:40:35" (1/3) ... [2018-01-21 08:40:36,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f55c79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:40:36, skipping insertion in model container [2018-01-21 08:40:36,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:40:36" (2/3) ... [2018-01-21 08:40:36,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f55c79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:40:36, skipping insertion in model container [2018-01-21 08:40:36,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:40:36" (3/3) ... [2018-01-21 08:40:36,442 INFO L105 eAbstractionObserver]: Analyzing ICFG c.03-alloca_true-valid-memsafety.i [2018-01-21 08:40:36,448 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 08:40:36,454 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 08:40:36,498 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:40:36,498 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:40:36,498 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:40:36,498 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:40:36,498 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:40:36,498 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:40:36,499 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:40:36,499 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 08:40:36,500 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:40:36,521 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-21 08:40:36,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 08:40:36,525 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:40:36,526 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 08:40:36,526 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 08:40:36,531 INFO L82 PathProgramCache]: Analyzing trace with hash 96102, now seen corresponding path program 1 times [2018-01-21 08:40:36,534 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:40:36,575 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:36,575 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:40:36,575 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:36,575 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:40:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:40:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:40:36,624 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:40:36,629 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:40:36,635 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:40:36,635 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:40:36,635 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:40:36,635 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:40:36,635 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:40:36,635 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:40:36,635 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:40:36,636 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == test_funErr0EnsuresViolation======== [2018-01-21 08:40:36,636 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:40:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-21 08:40:36,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-21 08:40:36,639 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:40:36,639 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] [2018-01-21 08:40:36,639 INFO L371 AbstractCegarLoop]: === Iteration 1 === [test_funErr0EnsuresViolation]=== [2018-01-21 08:40:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash 2040932450, now seen corresponding path program 1 times [2018-01-21 08:40:36,639 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:40:36,640 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:36,640 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:40:36,640 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:36,640 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:40:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:40:36,680 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:40:36,742 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 08:40:36,744 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:40:36,744 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:40:36,745 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:40:36,747 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:40:36,760 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:40:36,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:40:36,764 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-01-21 08:40:36,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:40:36,853 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2018-01-21 08:40:36,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:40:36,855 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2018-01-21 08:40:36,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:40:36,867 INFO L225 Difference]: With dead ends: 77 [2018-01-21 08:40:36,867 INFO L226 Difference]: Without dead ends: 48 [2018-01-21 08:40:36,870 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:40:36,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-01-21 08:40:36,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-01-21 08:40:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-21 08:40:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2018-01-21 08:40:36,905 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 32 [2018-01-21 08:40:36,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:40:36,906 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2018-01-21 08:40:36,906 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:40:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2018-01-21 08:40:36,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-21 08:40:36,907 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:40:36,907 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] [2018-01-21 08:40:36,907 INFO L371 AbstractCegarLoop]: === Iteration 2 === [test_funErr0EnsuresViolation]=== [2018-01-21 08:40:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash 105536599, now seen corresponding path program 1 times [2018-01-21 08:40:36,907 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:40:36,909 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:36,909 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:40:36,909 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:36,909 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:40:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:40:36,957 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:40:37,871 WARN L146 SmtUtils]: Spent 142ms on a formula simplification. DAG size of input: 76 DAG size of output 31 [2018-01-21 08:40:38,527 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 08:40:38,527 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:40:38,528 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-21 08:40:38,528 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:40:38,530 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-21 08:40:38,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-21 08:40:38,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2018-01-21 08:40:38,531 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2018-01-21 08:40:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:40:38,863 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2018-01-21 08:40:38,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-21 08:40:38,863 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2018-01-21 08:40:38,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:40:38,863 INFO L225 Difference]: With dead ends: 48 [2018-01-21 08:40:38,863 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:40:38,865 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-01-21 08:40:38,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:40:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:40:38,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:40:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:40:38,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-01-21 08:40:38,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:40:38,866 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:40:38,866 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-21 08:40:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:40:38,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:40:38,869 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:40:38,869 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:40:38,869 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:40:38,869 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:40:38,869 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:40:38,869 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:40:38,869 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:40:38,869 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 08:40:38,869 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:40:38,871 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-21 08:40:38,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-21 08:40:38,872 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:40:38,872 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:40:38,872 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:40:38,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1985299327, now seen corresponding path program 1 times [2018-01-21 08:40:38,873 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:40:38,873 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:38,874 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:40:38,874 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:38,874 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:40:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:40:38,884 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:40:38,898 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 08:40:38,899 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:40:38,899 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:40:38,899 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:40:38,899 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:40:38,900 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:40:38,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:40:38,900 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-01-21 08:40:38,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:40:38,904 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2018-01-21 08:40:38,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:40:38,905 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2018-01-21 08:40:38,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:40:38,906 INFO L225 Difference]: With dead ends: 77 [2018-01-21 08:40:38,906 INFO L226 Difference]: Without dead ends: 53 [2018-01-21 08:40:38,907 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:40:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-01-21 08:40:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-01-21 08:40:38,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-01-21 08:40:38,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2018-01-21 08:40:38,912 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 37 [2018-01-21 08:40:38,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:40:38,912 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2018-01-21 08:40:38,913 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:40:38,913 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2018-01-21 08:40:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-01-21 08:40:38,913 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:40:38,914 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] [2018-01-21 08:40:38,914 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:40:38,914 INFO L82 PathProgramCache]: Analyzing trace with hash -322848340, now seen corresponding path program 1 times [2018-01-21 08:40:38,914 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:40:38,915 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:38,915 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:40:38,915 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:38,915 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:40:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:40:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:40:38,961 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:40:38,973 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:40:38,984 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:40:38,985 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:40:38,985 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:40:39,007 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:40:39,007 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:40:39,008 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:40:39,008 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:40:39,008 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:40:39,008 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:40:39,008 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:40:39,008 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 08:40:39,008 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:40:39,010 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-21 08:40:39,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-21 08:40:39,011 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:40:39,011 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] [2018-01-21 08:40:39,012 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 08:40:39,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1861619211, now seen corresponding path program 1 times [2018-01-21 08:40:39,012 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:40:39,013 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:39,013 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:40:39,013 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:39,013 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:40:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:40:39,022 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:40:39,034 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 08:40:39,035 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:40:39,035 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:40:39,035 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:40:39,035 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:40:39,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:40:39,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:40:39,036 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-01-21 08:40:39,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:40:39,040 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2018-01-21 08:40:39,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:40:39,040 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2018-01-21 08:40:39,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:40:39,042 INFO L225 Difference]: With dead ends: 77 [2018-01-21 08:40:39,042 INFO L226 Difference]: Without dead ends: 51 [2018-01-21 08:40:39,042 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:40:39,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-21 08:40:39,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-01-21 08:40:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-01-21 08:40:39,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2018-01-21 08:40:39,048 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 35 [2018-01-21 08:40:39,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:40:39,048 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2018-01-21 08:40:39,049 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:40:39,049 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2018-01-21 08:40:39,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-01-21 08:40:39,050 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:40:39,050 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] [2018-01-21 08:40:39,050 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-21 08:40:39,051 INFO L82 PathProgramCache]: Analyzing trace with hash 124803574, now seen corresponding path program 1 times [2018-01-21 08:40:39,051 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:40:39,051 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:39,052 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:40:39,052 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:40:39,052 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:40:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:40:39,062 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:40:39,114 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 08:40:39,114 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:40:39,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:40:39,114 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:40:39,115 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 08:40:39,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 08:40:39,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:40:39,116 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 3 states. [2018-01-21 08:40:39,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:40:39,147 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2018-01-21 08:40:39,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 08:40:39,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-01-21 08:40:39,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:40:39,148 INFO L225 Difference]: With dead ends: 51 [2018-01-21 08:40:39,148 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:40:39,149 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:40:39,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:40:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:40:39,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:40:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:40:39,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-01-21 08:40:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:40:39,150 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:40:39,150 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 08:40:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:40:39,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:40:39,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 08:40:39 BoogieIcfgContainer [2018-01-21 08:40:39,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 08:40:39,154 INFO L168 Benchmark]: Toolchain (without parser) took 3224.94 ms. Allocated memory was 304.6 MB in the beginning and 518.0 MB in the end (delta: 213.4 MB). Free memory was 262.9 MB in the beginning and 391.3 MB in the end (delta: -128.3 MB). Peak memory consumption was 85.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:40:39,155 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-01-21 08:40:39,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.40 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 252.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:40:39,156 INFO L168 Benchmark]: Boogie Preprocessor took 36.91 ms. Allocated memory is still 304.6 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:40:39,156 INFO L168 Benchmark]: RCFGBuilder took 260.51 ms. Allocated memory is still 304.6 MB. Free memory was 250.0 MB in the beginning and 232.4 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 5.3 GB. [2018-01-21 08:40:39,157 INFO L168 Benchmark]: TraceAbstraction took 2716.31 ms. Allocated memory was 304.6 MB in the beginning and 518.0 MB in the end (delta: 213.4 MB). Free memory was 232.4 MB in the beginning and 391.3 MB in the end (delta: -158.9 MB). Peak memory consumption was 54.5 MB. Max. memory is 5.3 GB. [2018-01-21 08:40:39,158 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 204.40 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 252.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.91 ms. Allocated memory is still 304.6 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 260.51 ms. Allocated memory is still 304.6 MB. Free memory was 250.0 MB in the beginning and 232.4 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2716.31 ms. Allocated memory was 304.6 MB in the beginning and 518.0 MB in the end (delta: 213.4 MB). Free memory was 232.4 MB in the beginning and 391.3 MB in the end (delta: -158.9 MB). Peak memory consumption was 54.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - 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 4 procedures, 57 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: test_funErr0EnsuresViolation CFG has 4 procedures, 57 locations, 4 error locations. SAFE Result, 2.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 78 SDtfs, 53 SDslu, 97 SDs, 0 SdLazy, 355 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 33635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L561] CALL, EXPR test_fun(__VERIFIER_nondet_int(),__VERIFIER_nondet_int(),__VERIFIER_nondet_int()) VAL [\old(x)=0, \old(y)=0, \old(z)=0] [L542] EXPR, FCALL __builtin_alloca (sizeof(int)) VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={9:0}, x=0, y=0, z=0] [L542] int* x_ref = __builtin_alloca (sizeof(int)); VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={9:0}, x=0, x_ref={9:0}, y=0, z=0] [L543] EXPR, FCALL __builtin_alloca (sizeof(int)) VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={9:0}, x=0, x_ref={9:0}, y=0, z=0] [L543] int* y_ref = __builtin_alloca (sizeof(int)); VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={9:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0] [L544] EXPR, FCALL __builtin_alloca (sizeof(int)) VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0] [L544] int* z_ref = __builtin_alloca (sizeof(int)); VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L545] EXPR, FCALL __builtin_alloca (sizeof(int)) VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L545] int* c = __builtin_alloca (sizeof(int)); VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, c={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L546] FCALL *x_ref = x VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, c={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L547] FCALL *y_ref = y VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, c={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L548] FCALL *z_ref = z VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, c={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L549] FCALL *c = 0 VAL [\old(x)=0, \old(y)=0, \old(z)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, c={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L550] EXPR, FCALL \read(*x_ref) VAL [\old(x)=0, \old(y)=0, \old(z)=0, \read(*x_ref)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, c={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L550] EXPR, FCALL \read(*y_ref) VAL [\old(x)=0, \old(y)=0, \old(z)=0, \read(*x_ref)=0, \read(*y_ref)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, c={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L550] COND FALSE !(*x_ref < *y_ref) [L558] EXPR, FCALL \read(*c) VAL [\old(x)=0, \old(y)=0, \old(z)=0, \read(*c)=0, __builtin_alloca (sizeof(int))={8:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={6:0}, c={6:0}, x=0, x_ref={9:0}, y=0, y_ref={8:0}, z=0, z_ref={7:0}] [L558] RET return *c; [L561] EXPR test_fun(__VERIFIER_nondet_int(),__VERIFIER_nondet_int(),__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, __VERIFIER_nondet_int()=0, __VERIFIER_nondet_int()=0, test_fun(__VERIFIER_nondet_int(),__VERIFIER_nondet_int(),__VERIFIER_nondet_int())=0] [L561] return test_fun(__VERIFIER_nondet_int(),__VERIFIER_nondet_int(),__VERIFIER_nondet_int()); - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 57 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 560]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 57 locations, 4 error locations. SAFE Result, 0.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 106 SDtfs, 1 SDslu, 32 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 2895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/c.03-alloca_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_08-40-39-168.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/c.03-alloca_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_08-40-39-168.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/c.03-alloca_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_08-40-39-168.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/c.03-alloca_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_08-40-39-168.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/c.03-alloca_true-valid-memsafety.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_08-40-39-168.csv Received shutdown request...