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/memsetNonZero2_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:17:53,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:17:53,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:17:53,137 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:17:53,137 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:17:53,138 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:17:53,138 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:17:53,139 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:17:53,141 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:17:53,142 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:17:53,143 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:17:53,143 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:17:53,144 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:17:53,145 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:17:53,146 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:17:53,149 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:17:53,150 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:17:53,152 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:17:53,153 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:17:53,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:17:53,156 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 12:17:53,161 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:17:53,162 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:17:53,162 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 12:17:53,172 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:17:53,172 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:17:53,173 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:17:53,174 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:17:53,174 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:17:53,174 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:17:53,174 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:17:53,175 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:17:53,175 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:17:53,175 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:17:53,175 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:17:53,176 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:17:53,176 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:17:53,176 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:17:53,176 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:17:53,176 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:17:53,177 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:17:53,177 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:17:53,177 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:17:53,177 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:17:53,177 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:17:53,178 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:17:53,178 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:17:53,178 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:17:53,178 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:17:53,179 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:17:53,179 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:17:53,179 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:17:53,179 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 12:17:53,179 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:17:53,180 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:17:53,180 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:17:53,181 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:17:53,181 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:17:53,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:17:53,222 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:17:53,225 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:17:53,227 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:17:53,227 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:17:53,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero2_true-valid-memsafety_true-termination.c [2018-01-24 12:17:53,342 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:17:53,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:17:53,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:17:53,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:17:53,354 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:17:53,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70063e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53, skipping insertion in model container [2018-01-24 12:17:53,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,370 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:17:53,384 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:17:53,486 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:17:53,500 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:17:53,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53 WrapperNode [2018-01-24 12:17:53,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:17:53,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:17:53,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:17:53,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:17:53,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (1/1) ... [2018-01-24 12:17:53,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:17:53,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:17:53,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:17:53,534 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:17:53,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (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 12:17:53,584 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:17:53,584 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:17:53,584 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:17:53,584 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:17:53,585 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:17:53,585 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:17:53,585 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-24 12:17:53,585 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-24 12:17:53,585 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-24 12:17:53,585 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:17:53,585 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:17:53,585 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:17:53,654 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-24 12:17:53,712 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:17:53,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:17:53 BoogieIcfgContainer [2018-01-24 12:17:53,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:17:53,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:17:53,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:17:53,715 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:17:53,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:17:53" (1/3) ... [2018-01-24 12:17:53,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a155297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:17:53, skipping insertion in model container [2018-01-24 12:17:53,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:53" (2/3) ... [2018-01-24 12:17:53,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a155297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:17:53, skipping insertion in model container [2018-01-24 12:17:53,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:17:53" (3/3) ... [2018-01-24 12:17:53,720 INFO L105 eAbstractionObserver]: Analyzing ICFG memsetNonZero2_true-valid-memsafety_true-termination.c [2018-01-24 12:17:53,727 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:17:53,733 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-24 12:17:53,770 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:17:53,770 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:17:53,771 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:17:53,771 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:17:53,771 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:17:53,771 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:17:53,771 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:17:53,771 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:17:53,772 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:17:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-01-24 12:17:53,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-01-24 12:17:53,801 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:53,802 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:53,802 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:53,808 INFO L82 PathProgramCache]: Analyzing trace with hash 682221498, now seen corresponding path program 1 times [2018-01-24 12:17:53,810 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:53,810 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:53,869 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:53,869 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:53,869 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:53,919 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:53,974 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 12:17:53,976 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:53,977 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:17:53,978 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:17:53,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:17:53,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:17:53,991 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-01-24 12:17:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:54,047 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-01-24 12:17:54,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:17:54,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-01-24 12:17:54,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:54,061 INFO L225 Difference]: With dead ends: 22 [2018-01-24 12:17:54,061 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 12:17:54,065 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 12:17:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 12:17:54,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 12:17:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 12:17:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-01-24 12:17:54,098 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2018-01-24 12:17:54,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:54,098 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-01-24 12:17:54,098 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:17:54,099 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-01-24 12:17:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-01-24 12:17:54,099 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:54,099 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:54,099 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:54,100 INFO L82 PathProgramCache]: Analyzing trace with hash 682221499, now seen corresponding path program 1 times [2018-01-24 12:17:54,100 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:54,100 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:54,101 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:54,101 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:54,101 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:54,183 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:54,255 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 12:17:54,255 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:54,255 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:17:54,256 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:17:54,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:17:54,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:17:54,257 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2018-01-24 12:17:54,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:54,273 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-01-24 12:17:54,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:17:54,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-01-24 12:17:54,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:54,274 INFO L225 Difference]: With dead ends: 18 [2018-01-24 12:17:54,274 INFO L226 Difference]: Without dead ends: 17 [2018-01-24 12:17:54,275 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 12:17:54,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-01-24 12:17:54,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-01-24 12:17:54,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-01-24 12:17:54,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-01-24 12:17:54,280 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2018-01-24 12:17:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:54,280 INFO L432 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-01-24 12:17:54,280 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:17:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-01-24 12:17:54,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 12:17:54,281 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:54,281 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:54,281 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:54,282 INFO L82 PathProgramCache]: Analyzing trace with hash -898824040, now seen corresponding path program 1 times [2018-01-24 12:17:54,282 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:54,282 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:54,283 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:54,283 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:54,283 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:54,300 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:54,347 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 12:17:54,348 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:54,348 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:17:54,348 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:17:54,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:17:54,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:17:54,349 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2018-01-24 12:17:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:54,378 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-01-24 12:17:54,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:17:54,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 12:17:54,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:54,380 INFO L225 Difference]: With dead ends: 25 [2018-01-24 12:17:54,380 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 12:17:54,380 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 12:17:54,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 12:17:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 12:17:54,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 12:17:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-01-24 12:17:54,384 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-01-24 12:17:54,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:54,385 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-01-24 12:17:54,385 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:17:54,385 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-01-24 12:17:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 12:17:54,386 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:54,386 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 12:17:54,386 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:54,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1616948477, now seen corresponding path program 1 times [2018-01-24 12:17:54,387 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:54,387 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:54,388 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:54,388 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:54,388 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:54,405 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:54,482 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 12:17:54,482 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:17:54,483 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 12:17:54,492 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:54,520 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:17:54,562 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 12:17:54,583 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:17:54,583 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-01-24 12:17:54,583 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 12:17:54,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 12:17:54,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:17:54,584 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2018-01-24 12:17:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:54,622 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-01-24 12:17:54,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:17:54,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-01-24 12:17:54,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:54,624 INFO L225 Difference]: With dead ends: 26 [2018-01-24 12:17:54,624 INFO L226 Difference]: Without dead ends: 19 [2018-01-24 12:17:54,625 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:17:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-01-24 12:17:54,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-01-24 12:17:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-01-24 12:17:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-01-24 12:17:54,629 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-01-24 12:17:54,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:54,629 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-01-24 12:17:54,630 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 12:17:54,630 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-01-24 12:17:54,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:17:54,630 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:54,631 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 12:17:54,631 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:54,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1998482120, now seen corresponding path program 2 times [2018-01-24 12:17:54,631 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:54,631 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:54,632 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:54,633 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:54,633 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:54,647 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:54,812 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 12:17:54,812 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:17:54,812 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 12:17:54,825 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:17:54,839 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:17:54,856 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:17:54,859 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:17:54,983 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:17:54,989 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 12:17:54,990 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:17:54,992 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 12:17:54,992 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-24 12:17:55,038 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 12:17:55,043 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 12:17:55,067 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:17:55,068 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2018-01-24 12:17:55,068 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 12:17:55,068 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 12:17:55,068 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=51, Unknown=1, NotChecked=14, Total=90 [2018-01-24 12:17:55,068 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2018-01-24 12:17:55,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:55,270 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-01-24 12:17:55,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 12:17:55,270 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2018-01-24 12:17:55,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:55,271 INFO L225 Difference]: With dead ends: 26 [2018-01-24 12:17:55,271 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 12:17:55,272 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=146, Unknown=1, NotChecked=26, Total=240 [2018-01-24 12:17:55,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 12:17:55,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 12:17:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 12:17:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 12:17:55,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-01-24 12:17:55,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:55,273 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 12:17:55,273 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 12:17:55,273 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 12:17:55,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 12:17:55,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 12:17:55,340 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 24) no Hoare annotation was computed. [2018-01-24 12:17:55,340 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 24) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:17:55,341 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 24) no Hoare annotation was computed. [2018-01-24 12:17:55,341 INFO L404 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-01-24 12:17:55,341 INFO L404 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-01-24 12:17:55,341 INFO L401 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-01-24 12:17:55,341 INFO L401 ceAbstractionStarter]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2018-01-24 12:17:55,341 INFO L401 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-01-24 12:17:55,342 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 24) the Hoare annotation is: true [2018-01-24 12:17:55,342 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 24) no Hoare annotation was computed. [2018-01-24 12:17:55,342 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 24) the Hoare annotation is: true [2018-01-24 12:17:55,342 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 24) no Hoare annotation was computed. [2018-01-24 12:17:55,342 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 20 24) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:17:55,342 INFO L401 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line -1) no Hoare annotation was computed. [2018-01-24 12:17:55,342 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 20 24) no Hoare annotation was computed. [2018-01-24 12:17:55,343 INFO L401 ceAbstractionStarter]: For program point mainErr2EnsuresViolation(lines 20 24) no Hoare annotation was computed. [2018-01-24 12:17:55,343 INFO L397 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (and (= |main_~#cstats~2.offset| 0) (= (select |#length| |main_~#cstats~2.base|) 40) (= |#valid| (store |old(#valid)| |main_~#cstats~2.base| 1)) (= (select |old(#valid)| |main_~#cstats~2.base|) 0)) [2018-01-24 12:17:55,343 INFO L401 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-01-24 12:17:55,343 INFO L401 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line -1) no Hoare annotation was computed. [2018-01-24 12:17:55,343 INFO L401 ceAbstractionStarter]: For program point L21''(line 21) no Hoare annotation was computed. [2018-01-24 12:17:55,343 INFO L401 ceAbstractionStarter]: For program point L21'(line 21) no Hoare annotation was computed. [2018-01-24 12:17:55,344 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 20 24) no Hoare annotation was computed. [2018-01-24 12:17:55,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 12:17:55 BoogieIcfgContainer [2018-01-24 12:17:55,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 12:17:55,350 INFO L168 Benchmark]: Toolchain (without parser) took 2007.57 ms. Allocated memory was 308.3 MB in the beginning and 470.3 MB in the end (delta: 162.0 MB). Free memory was 269.2 MB in the beginning and 358.4 MB in the end (delta: -89.2 MB). Peak memory consumption was 72.8 MB. Max. memory is 5.3 GB. [2018-01-24 12:17:55,351 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 308.3 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:17:55,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.02 ms. Allocated memory is still 308.3 MB. Free memory was 268.2 MB in the beginning and 261.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:17:55,352 INFO L168 Benchmark]: Boogie Preprocessor took 27.71 ms. Allocated memory is still 308.3 MB. Free memory was 260.2 MB in the beginning and 259.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-24 12:17:55,353 INFO L168 Benchmark]: RCFGBuilder took 179.40 ms. Allocated memory is still 308.3 MB. Free memory was 259.2 MB in the beginning and 247.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. [2018-01-24 12:17:55,353 INFO L168 Benchmark]: TraceAbstraction took 1635.77 ms. Allocated memory was 308.3 MB in the beginning and 470.3 MB in the end (delta: 162.0 MB). Free memory was 246.0 MB in the beginning and 358.4 MB in the end (delta: -112.4 MB). Peak memory consumption was 49.6 MB. Max. memory is 5.3 GB. [2018-01-24 12:17:55,355 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 308.3 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 156.02 ms. Allocated memory is still 308.3 MB. Free memory was 268.2 MB in the beginning and 261.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.71 ms. Allocated memory is still 308.3 MB. Free memory was 260.2 MB in the beginning and 259.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 179.40 ms. Allocated memory is still 308.3 MB. Free memory was 259.2 MB in the beginning and 247.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1635.77 ms. Allocated memory was 308.3 MB in the beginning and 470.3 MB in the end (delta: 162.0 MB). Free memory was 246.0 MB in the beginning and 358.4 MB in the end (delta: -112.4 MB). Peak memory consumption was 49.6 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: 20]: 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, 1.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 19 SDslu, 114 SDs, 0 SdLazy, 84 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s 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, 64 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 100 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 9 QuantifiedInterpolants, 4084 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/memsetNonZero2_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-17-55-365.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_12-17-55-365.csv Received shutdown request...