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/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memset_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:17:58,657 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:17:58,659 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:17:58,673 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:17:58,673 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:17:58,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:17:58,676 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:17:58,678 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:17:58,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:17:58,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:17:58,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:17:58,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:17:58,681 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:17:58,682 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:17:58,683 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:17:58,685 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:17:58,687 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:17:58,689 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:17:58,691 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:17:58,692 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:17:58,695 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 12:17:58,700 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:17:58,701 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:17:58,701 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf [2018-01-24 12:17:58,711 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:17:58,711 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:17:58,712 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:17:58,712 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:17:58,713 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:17:58,713 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:17:58,713 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:17:58,714 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:17:58,714 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:17:58,714 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:17:58,714 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:17:58,714 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:17:58,715 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:17:58,715 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:17:58,715 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:17:58,715 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:17:58,715 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:17:58,715 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:17:58,716 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:17:58,716 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:17:58,716 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:17:58,716 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:17:58,716 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:17:58,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:17:58,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:17:58,717 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:17:58,717 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:17:58,717 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:17:58,718 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 12:17:58,718 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:17:58,718 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:17:58,718 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:17:58,719 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:17:58,719 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:17:58,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:17:58,766 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:17:58,771 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:17:58,772 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:17:58,773 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:17:58,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset_true-valid-memsafety_true-termination.c [2018-01-24 12:17:58,887 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:17:58,893 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:17:58,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:17:58,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:17:58,899 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:17:58,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:17:58" (1/1) ... [2018-01-24 12:17:58,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7575ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:58, skipping insertion in model container [2018-01-24 12:17:58,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:17:58" (1/1) ... [2018-01-24 12:17:58,917 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:17:58,932 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:17:59,042 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:17:59,057 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:17:59,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59 WrapperNode [2018-01-24 12:17:59,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:17:59,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:17:59,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:17:59,063 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:17:59,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (1/1) ... [2018-01-24 12:17:59,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (1/1) ... [2018-01-24 12:17:59,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (1/1) ... [2018-01-24 12:17:59,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (1/1) ... [2018-01-24 12:17:59,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (1/1) ... [2018-01-24 12:17:59,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (1/1) ... [2018-01-24 12:17:59,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (1/1) ... [2018-01-24 12:17:59,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:17:59,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:17:59,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:17:59,092 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:17:59,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (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 [2018-01-24 12:17:59,140 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:17:59,140 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:17:59,141 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:17:59,141 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:17:59,141 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:17:59,141 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:17:59,141 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-24 12:17:59,141 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-24 12:17:59,141 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-24 12:17:59,141 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:17:59,141 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:17:59,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:17:59,211 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-24 12:17:59,277 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:17:59,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:17:59 BoogieIcfgContainer [2018-01-24 12:17:59,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:17:59,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:17:59,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:17:59,280 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:17:59,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:17:58" (1/3) ... [2018-01-24 12:17:59,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53eb0f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:17:59, skipping insertion in model container [2018-01-24 12:17:59,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:59" (2/3) ... [2018-01-24 12:17:59,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53eb0f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:17:59, skipping insertion in model container [2018-01-24 12:17:59,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:17:59" (3/3) ... [2018-01-24 12:17:59,284 INFO L105 eAbstractionObserver]: Analyzing ICFG memset_true-valid-memsafety_true-termination.c [2018-01-24 12:17:59,292 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:17:59,298 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-24 12:17:59,338 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:17:59,339 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:17:59,339 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:17:59,339 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:17:59,339 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:17:59,339 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:17:59,340 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:17:59,340 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:17:59,341 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:17:59,363 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-01-24 12:17:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-01-24 12:17:59,372 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:59,373 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:59,373 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:59,379 INFO L82 PathProgramCache]: Analyzing trace with hash 682221498, now seen corresponding path program 1 times [2018-01-24 12:17:59,381 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:59,382 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:59,440 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:59,440 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:59,440 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:59,485 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:59,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:17:59,533 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:59,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:17:59,535 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:17:59,544 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:17:59,545 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:17:59,546 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-01-24 12:17:59,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:59,600 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-01-24 12:17:59,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:17:59,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-01-24 12:17:59,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:59,613 INFO L225 Difference]: With dead ends: 22 [2018-01-24 12:17:59,614 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 12:17:59,617 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:17:59,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 12:17:59,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 12:17:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 12:17:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-01-24 12:17:59,649 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2018-01-24 12:17:59,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:59,649 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-01-24 12:17:59,649 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:17:59,649 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-01-24 12:17:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-01-24 12:17:59,650 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:59,650 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:59,650 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:59,650 INFO L82 PathProgramCache]: Analyzing trace with hash 682221499, now seen corresponding path program 1 times [2018-01-24 12:17:59,650 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:59,651 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:59,652 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:59,652 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:59,653 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:59,728 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:17:59,786 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:59,786 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:17:59,787 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:17:59,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:17:59,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:17:59,788 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2018-01-24 12:17:59,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:59,807 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-01-24 12:17:59,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:17:59,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-01-24 12:17:59,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:59,808 INFO L225 Difference]: With dead ends: 18 [2018-01-24 12:17:59,808 INFO L226 Difference]: Without dead ends: 17 [2018-01-24 12:17:59,809 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:17:59,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-01-24 12:17:59,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-01-24 12:17:59,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-01-24 12:17:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-01-24 12:17:59,814 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2018-01-24 12:17:59,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:59,814 INFO L432 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-01-24 12:17:59,815 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:17:59,815 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-01-24 12:17:59,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 12:17:59,815 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:59,816 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:59,816 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:59,816 INFO L82 PathProgramCache]: Analyzing trace with hash -898824040, now seen corresponding path program 1 times [2018-01-24 12:17:59,816 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:59,816 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:59,818 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:59,818 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:59,818 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:59,833 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:59,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:17:59,879 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:59,879 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:17:59,879 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:17:59,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:17:59,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:17:59,880 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2018-01-24 12:17:59,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:59,903 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-01-24 12:17:59,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:17:59,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 12:17:59,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:59,905 INFO L225 Difference]: With dead ends: 25 [2018-01-24 12:17:59,905 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 12:17:59,905 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:17:59,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 12:17:59,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 12:17:59,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 12:17:59,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-01-24 12:17:59,910 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-01-24 12:17:59,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:59,910 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-01-24 12:17:59,910 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:17:59,910 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-01-24 12:17:59,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 12:17:59,911 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:59,911 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:59,911 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:59,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1616948477, now seen corresponding path program 1 times [2018-01-24 12:17:59,912 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:59,912 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:59,913 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:59,913 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:59,914 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:59,930 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:17:59,975 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:17:59,975 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 [2018-01-24 12:17:59,985 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:18:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:18:00,016 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:18:00,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:18:00,166 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:18:00,167 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-01-24 12:18:00,167 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 12:18:00,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 12:18:00,168 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:18:00,168 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2018-01-24 12:18:00,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:18:00,188 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-01-24 12:18:00,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:18:00,189 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-01-24 12:18:00,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:18:00,189 INFO L225 Difference]: With dead ends: 26 [2018-01-24 12:18:00,189 INFO L226 Difference]: Without dead ends: 19 [2018-01-24 12:18:00,190 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:18:00,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-01-24 12:18:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-01-24 12:18:00,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-01-24 12:18:00,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-01-24 12:18:00,194 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-01-24 12:18:00,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:18:00,195 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-01-24 12:18:00,195 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 12:18:00,195 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-01-24 12:18:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:18:00,196 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:18:00,196 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:18:00,196 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:18:00,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1998482120, now seen corresponding path program 2 times [2018-01-24 12:18:00,196 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:18:00,197 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:18:00,197 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:18:00,198 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:18:00,198 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:18:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:18:00,208 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:18:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:18:00,251 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:18:00,251 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 [2018-01-24 12:18:00,270 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:18:00,285 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:18:00,286 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:18:00,288 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:18:00,387 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:18:00,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 5 [2018-01-24 12:18:00,395 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:18:00,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 12:18:00,398 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-24 12:18:00,426 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|main_~#cstats~2.base| Int)) (and (= (select |c_old(#valid)| |main_~#cstats~2.base|) 0) (= |c_#valid| (store |c_old(#valid)| |main_~#cstats~2.base| 0)))) is different from true [2018-01-24 12:18:00,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-01-24 12:18:00,450 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:18:00,450 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2018-01-24 12:18:00,451 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 12:18:00,451 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 12:18:00,451 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=52, Unknown=1, NotChecked=14, Total=90 [2018-01-24 12:18:00,451 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2018-01-24 12:18:00,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:18:00,668 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-01-24 12:18:00,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 12:18:00,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2018-01-24 12:18:00,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:18:00,671 INFO L225 Difference]: With dead ends: 26 [2018-01-24 12:18:00,671 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 12:18:00,672 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=149, Unknown=1, NotChecked=26, Total=240 [2018-01-24 12:18:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 12:18:00,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 12:18:00,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 12:18:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 12:18:00,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-01-24 12:18:00,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:18:00,673 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 12:18:00,674 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 12:18:00,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 12:18:00,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 12:18:00,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 12:18:00,751 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 29) no Hoare annotation was computed. [2018-01-24 12:18:00,752 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 29) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:18:00,752 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 29) no Hoare annotation was computed. [2018-01-24 12:18:00,752 INFO L404 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-01-24 12:18:00,753 INFO L404 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-01-24 12:18:00,753 INFO L401 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-01-24 12:18:00,753 INFO L401 ceAbstractionStarter]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2018-01-24 12:18:00,753 INFO L401 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-01-24 12:18:00,753 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 29) the Hoare annotation is: true [2018-01-24 12:18:00,753 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 29) no Hoare annotation was computed. [2018-01-24 12:18:00,754 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 29) the Hoare annotation is: true [2018-01-24 12:18:00,754 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 29) no Hoare annotation was computed. [2018-01-24 12:18:00,754 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 25 29) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:18:00,754 INFO L401 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-01-24 12:18:00,754 INFO L397 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (and (= |main_~#cstats~2.offset| 0) (= (select |#length| |main_~#cstats~2.base|) 80) (= |#valid| (store |old(#valid)| |main_~#cstats~2.base| 1)) (= (select |old(#valid)| |main_~#cstats~2.base|) 0)) [2018-01-24 12:18:00,754 INFO L401 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line -1) no Hoare annotation was computed. [2018-01-24 12:18:00,755 INFO L401 ceAbstractionStarter]: For program point L26'(line 26) no Hoare annotation was computed. [2018-01-24 12:18:00,755 INFO L401 ceAbstractionStarter]: For program point L26''(line 26) no Hoare annotation was computed. [2018-01-24 12:18:00,755 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 25 29) no Hoare annotation was computed. [2018-01-24 12:18:00,755 INFO L401 ceAbstractionStarter]: For program point mainErr2EnsuresViolation(lines 25 29) no Hoare annotation was computed. [2018-01-24 12:18:00,755 INFO L401 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line -1) no Hoare annotation was computed. [2018-01-24 12:18:00,755 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 25 29) no Hoare annotation was computed. [2018-01-24 12:18:00,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 12:18:00 BoogieIcfgContainer [2018-01-24 12:18:00,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 12:18:00,763 INFO L168 Benchmark]: Toolchain (without parser) took 1874.67 ms. Allocated memory was 307.2 MB in the beginning and 469.8 MB in the end (delta: 162.5 MB). Free memory was 268.3 MB in the beginning and 362.4 MB in the end (delta: -94.1 MB). Peak memory consumption was 68.4 MB. Max. memory is 5.3 GB. [2018-01-24 12:18:00,764 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 307.2 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:18:00,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.07 ms. Allocated memory is still 307.2 MB. Free memory was 267.3 MB in the beginning and 259.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:18:00,765 INFO L168 Benchmark]: Boogie Preprocessor took 28.61 ms. Allocated memory is still 307.2 MB. Free memory was 259.3 MB in the beginning and 258.3 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. [2018-01-24 12:18:00,765 INFO L168 Benchmark]: RCFGBuilder took 185.34 ms. Allocated memory is still 307.2 MB. Free memory was 258.3 MB in the beginning and 246.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:18:00,765 INFO L168 Benchmark]: TraceAbstraction took 1483.79 ms. Allocated memory was 307.2 MB in the beginning and 469.8 MB in the end (delta: 162.5 MB). Free memory was 245.3 MB in the beginning and 362.4 MB in the end (delta: -117.1 MB). Peak memory consumption was 45.5 MB. Max. memory is 5.3 GB. [2018-01-24 12:18:00,767 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 307.2 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 169.07 ms. Allocated memory is still 307.2 MB. Free memory was 267.3 MB in the beginning and 259.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.61 ms. Allocated memory is still 307.2 MB. Free memory was 259.3 MB in the beginning and 258.3 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. * RCFGBuilder took 185.34 ms. Allocated memory is still 307.2 MB. Free memory was 258.3 MB in the beginning and 246.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1483.79 ms. Allocated memory was 307.2 MB in the beginning and 469.8 MB in the end (delta: 162.5 MB). Free memory was 245.3 MB in the beginning and 362.4 MB in the end (delta: -117.1 MB). Peak memory consumption was 45.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 3 error locations. SAFE Result, 1.4s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 20 SDslu, 103 SDs, 0 SdLazy, 81 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 30 HoareAnnotationTreeSize, 7 FomulaSimplifications, 53 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 100 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 9 QuantifiedInterpolants, 3919 SizeOfPredicates, 2 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-18-00-777.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_12-18-00-777.csv Received shutdown request...