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/memsetNonZero_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:17:57,152 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:17:57,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:17:57,167 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:17:57,167 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:17:57,168 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:17:57,169 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:17:57,170 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:17:57,172 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:17:57,172 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:17:57,173 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:17:57,173 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:17:57,174 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:17:57,175 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:17:57,176 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:17:57,179 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:17:57,181 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:17:57,183 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:17:57,184 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:17:57,186 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:17:57,188 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 12:17:57,193 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:17:57,194 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:17:57,194 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 12:17:57,204 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:17:57,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:17:57,205 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:17:57,205 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:17:57,205 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:17:57,205 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:17:57,205 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:17:57,206 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:17:57,206 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:17:57,206 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:17:57,207 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:17:57,207 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:17:57,207 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:17:57,207 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:17:57,207 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:17:57,208 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:17:57,208 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:17:57,208 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:17:57,208 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:17:57,208 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:17:57,209 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:17:57,209 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:17:57,209 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:17:57,209 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:17:57,209 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:17:57,210 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:17:57,210 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:17:57,210 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:17:57,210 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 12:17:57,210 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:17:57,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:17:57,211 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:17:57,211 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:17:57,212 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:17:57,247 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:17:57,260 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:17:57,264 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:17:57,265 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:17:57,265 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:17:57,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero_true-valid-memsafety_true-termination.c [2018-01-24 12:17:57,382 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:17:57,386 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:17:57,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:17:57,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:17:57,392 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:17:57,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,395 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 12:17:57, skipping insertion in model container [2018-01-24 12:17:57,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,409 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:17:57,423 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:17:57,533 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:17:57,548 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:17:57,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57 WrapperNode [2018-01-24 12:17:57,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:17:57,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:17:57,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:17:57,555 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:17:57,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (1/1) ... [2018-01-24 12:17:57,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:17:57,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:17:57,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:17:57,585 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:17:57,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (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 12:17:57,634 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:17:57,635 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:17:57,635 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:17:57,635 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:17:57,635 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:17:57,635 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:17:57,635 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-24 12:17:57,636 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-24 12:17:57,636 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-24 12:17:57,636 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:17:57,636 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:17:57,636 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:17:57,712 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-24 12:17:57,772 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:17:57,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:17:57 BoogieIcfgContainer [2018-01-24 12:17:57,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:17:57,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:17:57,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:17:57,775 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:17:57,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:17:57" (1/3) ... [2018-01-24 12:17:57,776 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 12:17:57, skipping insertion in model container [2018-01-24 12:17:57,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:17:57" (2/3) ... [2018-01-24 12:17:57,777 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 12:17:57, skipping insertion in model container [2018-01-24 12:17:57,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:17:57" (3/3) ... [2018-01-24 12:17:57,779 INFO L105 eAbstractionObserver]: Analyzing ICFG memsetNonZero_true-valid-memsafety_true-termination.c [2018-01-24 12:17:57,788 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:17:57,796 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-24 12:17:57,835 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:17:57,835 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:17:57,835 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:17:57,835 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:17:57,835 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:17:57,836 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:17:57,836 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:17:57,836 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:17:57,837 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:17:57,857 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-01-24 12:17:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-01-24 12:17:57,863 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:57,864 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:57,865 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:57,870 INFO L82 PathProgramCache]: Analyzing trace with hash 682221498, now seen corresponding path program 1 times [2018-01-24 12:17:57,872 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:57,873 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:57,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:57,930 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:57,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:57,980 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:58,033 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 12:17:58,035 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:58,035 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:17:58,037 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:17:58,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:17:58,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:17:58,049 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-01-24 12:17:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:58,091 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-01-24 12:17:58,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:17:58,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-01-24 12:17:58,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:58,107 INFO L225 Difference]: With dead ends: 22 [2018-01-24 12:17:58,107 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 12:17:58,111 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 12:17:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 12:17:58,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 12:17:58,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 12:17:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-01-24 12:17:58,156 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2018-01-24 12:17:58,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:58,157 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-01-24 12:17:58,157 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:17:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-01-24 12:17:58,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-01-24 12:17:58,158 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:58,158 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:58,158 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:58,159 INFO L82 PathProgramCache]: Analyzing trace with hash 682221499, now seen corresponding path program 1 times [2018-01-24 12:17:58,159 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:58,159 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:58,160 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:58,160 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:58,161 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:58,249 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:58,321 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 12:17:58,321 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:58,321 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:17:58,322 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:17:58,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:17:58,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:17:58,323 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2018-01-24 12:17:58,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:58,348 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-01-24 12:17:58,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:17:58,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-01-24 12:17:58,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:58,349 INFO L225 Difference]: With dead ends: 18 [2018-01-24 12:17:58,349 INFO L226 Difference]: Without dead ends: 17 [2018-01-24 12:17:58,350 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 12:17:58,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-01-24 12:17:58,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-01-24 12:17:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-01-24 12:17:58,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-01-24 12:17:58,355 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2018-01-24 12:17:58,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:58,355 INFO L432 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-01-24 12:17:58,355 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:17:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-01-24 12:17:58,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 12:17:58,356 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:58,356 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:17:58,356 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:58,357 INFO L82 PathProgramCache]: Analyzing trace with hash -898824040, now seen corresponding path program 1 times [2018-01-24 12:17:58,357 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:58,357 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:58,358 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:58,358 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:58,358 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:58,375 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:58,427 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 12:17:58,427 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:17:58,428 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:17:58,428 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:17:58,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:17:58,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:17:58,428 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2018-01-24 12:17:58,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:58,460 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-01-24 12:17:58,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:17:58,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 12:17:58,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:58,461 INFO L225 Difference]: With dead ends: 25 [2018-01-24 12:17:58,462 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 12:17:58,462 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 12:17:58,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 12:17:58,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 12:17:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 12:17:58,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-01-24 12:17:58,467 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-01-24 12:17:58,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:58,467 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-01-24 12:17:58,467 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:17:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-01-24 12:17:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 12:17:58,468 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:58,468 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 12:17:58,469 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:58,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1616948477, now seen corresponding path program 1 times [2018-01-24 12:17:58,469 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:58,469 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:58,470 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:58,471 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:58,471 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:58,488 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:58,537 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 12:17:58,537 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:17:58,537 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 12:17:58,549 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:58,580 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:17:58,693 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 12:17:58,715 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:17:58,715 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-01-24 12:17:58,716 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 12:17:58,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 12:17:58,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:17:58,716 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2018-01-24 12:17:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:58,741 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-01-24 12:17:58,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:17:58,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-01-24 12:17:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:58,742 INFO L225 Difference]: With dead ends: 26 [2018-01-24 12:17:58,743 INFO L226 Difference]: Without dead ends: 19 [2018-01-24 12:17:58,743 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 12:17:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-01-24 12:17:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-01-24 12:17:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-01-24 12:17:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-01-24 12:17:58,746 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-01-24 12:17:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:58,746 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-01-24 12:17:58,746 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 12:17:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-01-24 12:17:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:17:58,747 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:17:58,747 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 12:17:58,747 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 12:17:58,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1998482120, now seen corresponding path program 2 times [2018-01-24 12:17:58,747 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:17:58,747 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:17:58,748 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:58,748 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:17:58,748 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:17:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:17:58,761 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:17:58,834 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 12:17:58,835 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:17:58,835 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 12:17:58,850 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:17:58,864 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:17:58,865 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:17:58,867 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:17:58,928 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:17:58,936 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 12:17:58,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:17:58,939 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 12:17:58,940 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-24 12:17:59,003 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 12:17:59,008 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 12:17:59,028 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:17:59,028 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2018-01-24 12:17:59,028 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 12:17:59,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 12:17:59,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=52, Unknown=1, NotChecked=14, Total=90 [2018-01-24 12:17:59,029 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2018-01-24 12:17:59,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:17:59,222 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-01-24 12:17:59,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 12:17:59,223 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2018-01-24 12:17:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:17:59,224 INFO L225 Difference]: With dead ends: 26 [2018-01-24 12:17:59,224 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 12:17:59,225 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 12:17:59,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 12:17:59,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 12:17:59,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 12:17:59,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 12:17:59,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-01-24 12:17:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:17:59,226 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 12:17:59,226 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 12:17:59,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 12:17:59,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 12:17:59,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 12:17:59,292 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 29) no Hoare annotation was computed. [2018-01-24 12:17:59,292 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 29) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:17:59,292 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 29) no Hoare annotation was computed. [2018-01-24 12:17:59,292 INFO L404 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-01-24 12:17:59,293 INFO L404 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-01-24 12:17:59,293 INFO L401 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-01-24 12:17:59,293 INFO L401 ceAbstractionStarter]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2018-01-24 12:17:59,293 INFO L401 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-01-24 12:17:59,293 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 29) the Hoare annotation is: true [2018-01-24 12:17:59,293 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 29) no Hoare annotation was computed. [2018-01-24 12:17:59,294 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 29) the Hoare annotation is: true [2018-01-24 12:17:59,294 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 29) no Hoare annotation was computed. [2018-01-24 12:17:59,294 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 25 29) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:17:59,294 INFO L401 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-01-24 12:17:59,294 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 12:17:59,294 INFO L401 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line -1) no Hoare annotation was computed. [2018-01-24 12:17:59,295 INFO L401 ceAbstractionStarter]: For program point L26'(line 26) no Hoare annotation was computed. [2018-01-24 12:17:59,295 INFO L401 ceAbstractionStarter]: For program point L26''(line 26) no Hoare annotation was computed. [2018-01-24 12:17:59,295 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 25 29) no Hoare annotation was computed. [2018-01-24 12:17:59,295 INFO L401 ceAbstractionStarter]: For program point mainErr2EnsuresViolation(lines 25 29) no Hoare annotation was computed. [2018-01-24 12:17:59,295 INFO L401 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line -1) no Hoare annotation was computed. [2018-01-24 12:17:59,295 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 25 29) no Hoare annotation was computed. [2018-01-24 12:17:59,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 12:17:59 BoogieIcfgContainer [2018-01-24 12:17:59,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 12:17:59,302 INFO L168 Benchmark]: Toolchain (without parser) took 1920.08 ms. Allocated memory was 304.6 MB in the beginning and 462.9 MB in the end (delta: 158.3 MB). Free memory was 265.5 MB in the beginning and 353.3 MB in the end (delta: -87.8 MB). Peak memory consumption was 70.6 MB. Max. memory is 5.3 GB. [2018-01-24 12:17:59,304 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 304.6 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:17:59,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.30 ms. Allocated memory is still 304.6 MB. Free memory was 264.5 MB in the beginning and 256.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:17:59,304 INFO L168 Benchmark]: Boogie Preprocessor took 28.77 ms. Allocated memory is still 304.6 MB. Free memory was 256.5 MB in the beginning and 255.6 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. [2018-01-24 12:17:59,305 INFO L168 Benchmark]: RCFGBuilder took 188.31 ms. Allocated memory is still 304.6 MB. Free memory was 255.6 MB in the beginning and 243.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 5.3 GB. [2018-01-24 12:17:59,305 INFO L168 Benchmark]: TraceAbstraction took 1528.15 ms. Allocated memory was 304.6 MB in the beginning and 462.9 MB in the end (delta: 158.3 MB). Free memory was 242.2 MB in the beginning and 353.3 MB in the end (delta: -111.1 MB). Peak memory consumption was 47.2 MB. Max. memory is 5.3 GB. [2018-01-24 12:17:59,307 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 304.6 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 168.30 ms. Allocated memory is still 304.6 MB. Free memory was 264.5 MB in the beginning and 256.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.77 ms. Allocated memory is still 304.6 MB. Free memory was 256.5 MB in the beginning and 255.6 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. * RCFGBuilder took 188.31 ms. Allocated memory is still 304.6 MB. Free memory was 255.6 MB in the beginning and 243.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1528.15 ms. Allocated memory was 304.6 MB in the beginning and 462.9 MB in the end (delta: 158.3 MB). Free memory was 242.2 MB in the beginning and 353.3 MB in the end (delta: -111.1 MB). Peak memory consumption was 47.2 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/memsetNonZero_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-17-59-316.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_12-17-59-316.csv Received shutdown request...