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_Taipan+AI_EQ_preciseopt.epf -i ../../../trunk/examples/svcomp/memsafety/lockfree-3.3_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 02:56:02,174 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 02:56:02,176 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 02:56:02,192 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 02:56:02,193 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 02:56:02,194 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 02:56:02,195 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 02:56:02,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 02:56:02,199 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 02:56:02,200 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 02:56:02,201 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 02:56:02,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 02:56:02,202 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 02:56:02,203 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 02:56:02,204 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 02:56:02,207 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 02:56:02,209 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 02:56:02,211 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 02:56:02,213 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 02:56:02,214 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 02:56:02,216 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 02:56:02,222 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 02:56:02,222 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 02:56:02,223 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-25 02:56:02,232 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 02:56:02,232 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 02:56:02,233 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 02:56:02,233 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 02:56:02,233 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 02:56:02,233 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 02:56:02,234 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 02:56:02,234 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 02:56:02,234 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 02:56:02,234 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 02:56:02,234 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 02:56:02,235 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 02:56:02,235 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 02:56:02,235 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 02:56:02,235 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 02:56:02,235 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 02:56:02,235 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 02:56:02,236 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 02:56:02,236 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 02:56:02,236 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 02:56:02,236 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 02:56:02,236 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 02:56:02,236 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 02:56:02,237 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 02:56:02,237 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 02:56:02,237 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 02:56:02,237 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 02:56:02,237 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 02:56:02,237 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 02:56:02,238 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 02:56:02,238 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 02:56:02,238 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 02:56:02,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 02:56:02,238 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 02:56:02,238 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 02:56:02,239 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 02:56:02,239 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 02:56:02,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 02:56:02,283 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 02:56:02,287 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 02:56:02,288 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 02:56:02,288 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 02:56:02,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/lockfree-3.3_false-valid-memtrack.i [2018-01-25 02:56:02,479 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 02:56:02,485 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 02:56:02,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 02:56:02,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 02:56:02,493 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 02:56:02,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4430c394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02, skipping insertion in model container [2018-01-25 02:56:02,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,510 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 02:56:02,553 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 02:56:02,677 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 02:56:02,719 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 02:56:02,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02 WrapperNode [2018-01-25 02:56:02,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 02:56:02,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 02:56:02,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 02:56:02,739 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 02:56:02,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (1/1) ... [2018-01-25 02:56:02,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 02:56:02,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 02:56:02,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 02:56:02,794 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 02:56:02,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (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 [2018-01-25 02:56:02,845 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 02:56:02,846 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 02:56:02,846 INFO L136 BoogieDeclarations]: Found implementation of procedure push [2018-01-25 02:56:02,846 INFO L136 BoogieDeclarations]: Found implementation of procedure pop [2018-01-25 02:56:02,846 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 02:56:02,846 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 02:56:02,846 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 02:56:02,846 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 02:56:02,847 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 02:56:02,847 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 02:56:02,847 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 02:56:02,847 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 02:56:02,847 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 02:56:02,847 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 02:56:02,848 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 02:56:02,848 INFO L128 BoogieDeclarations]: Found specification of procedure push [2018-01-25 02:56:02,848 INFO L128 BoogieDeclarations]: Found specification of procedure pop [2018-01-25 02:56:02,848 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 02:56:02,848 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 02:56:02,848 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 02:56:03,232 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 02:56:03,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 02:56:03 BoogieIcfgContainer [2018-01-25 02:56:03,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 02:56:03,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 02:56:03,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 02:56:03,237 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 02:56:03,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 02:56:02" (1/3) ... [2018-01-25 02:56:03,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35da08a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 02:56:03, skipping insertion in model container [2018-01-25 02:56:03,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:56:02" (2/3) ... [2018-01-25 02:56:03,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35da08a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 02:56:03, skipping insertion in model container [2018-01-25 02:56:03,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 02:56:03" (3/3) ... [2018-01-25 02:56:03,241 INFO L105 eAbstractionObserver]: Analyzing ICFG lockfree-3.3_false-valid-memtrack.i [2018-01-25 02:56:03,248 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 02:56:03,257 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-01-25 02:56:03,294 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 02:56:03,294 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 02:56:03,295 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 02:56:03,295 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 02:56:03,295 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 02:56:03,295 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 02:56:03,295 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 02:56:03,295 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 02:56:03,296 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 02:56:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-01-25 02:56:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-25 02:56:03,324 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:03,325 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:03,325 INFO L371 AbstractCegarLoop]: === Iteration 1 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:03,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1799126466, now seen corresponding path program 1 times [2018-01-25 02:56:03,333 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:03,376 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:03,376 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:03,376 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:03,376 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:03,445 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:03,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:03,497 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:56:03,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 02:56:03,498 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:03,502 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-25 02:56:03,518 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-25 02:56:03,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-25 02:56:03,522 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-01-25 02:56:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:56:03,637 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2018-01-25 02:56:03,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-25 02:56:03,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-01-25 02:56:03,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:56:03,652 INFO L225 Difference]: With dead ends: 92 [2018-01-25 02:56:03,652 INFO L226 Difference]: Without dead ends: 73 [2018-01-25 02:56:03,656 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-25 02:56:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-01-25 02:56:03,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-01-25 02:56:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-25 02:56:03,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-01-25 02:56:03,695 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 9 [2018-01-25 02:56:03,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:56:03,695 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-01-25 02:56:03,695 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-25 02:56:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-01-25 02:56:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-25 02:56:03,696 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:03,696 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:03,696 INFO L371 AbstractCegarLoop]: === Iteration 2 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:03,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1199640283, now seen corresponding path program 1 times [2018-01-25 02:56:03,697 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:03,698 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:03,698 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:03,698 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:03,698 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:03,724 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:03,766 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:56:03,767 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 02:56:03,767 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:03,768 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 02:56:03,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 02:56:03,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:56:03,769 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 3 states. [2018-01-25 02:56:03,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:56:03,797 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2018-01-25 02:56:03,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 02:56:03,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-01-25 02:56:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:56:03,798 INFO L225 Difference]: With dead ends: 87 [2018-01-25 02:56:03,799 INFO L226 Difference]: Without dead ends: 74 [2018-01-25 02:56:03,800 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:56:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-01-25 02:56:03,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-01-25 02:56:03,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-01-25 02:56:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-01-25 02:56:03,806 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 12 [2018-01-25 02:56:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:56:03,806 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-01-25 02:56:03,807 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 02:56:03,807 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-01-25 02:56:03,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-25 02:56:03,807 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:03,807 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:03,807 INFO L371 AbstractCegarLoop]: === Iteration 3 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:03,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1201487325, now seen corresponding path program 1 times [2018-01-25 02:56:03,808 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:03,809 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:03,809 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:03,809 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:03,809 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:03,834 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:03,905 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:56:03,905 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 02:56:03,905 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:03,905 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 02:56:03,906 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 02:56:03,906 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:56:03,906 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand 3 states. [2018-01-25 02:56:03,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:56:03,962 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2018-01-25 02:56:03,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 02:56:03,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-01-25 02:56:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:56:03,965 INFO L225 Difference]: With dead ends: 145 [2018-01-25 02:56:03,965 INFO L226 Difference]: Without dead ends: 132 [2018-01-25 02:56:03,966 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:56:03,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-01-25 02:56:03,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 114. [2018-01-25 02:56:03,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-01-25 02:56:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2018-01-25 02:56:03,985 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 12 [2018-01-25 02:56:03,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:56:03,985 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2018-01-25 02:56:03,986 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 02:56:03,986 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2018-01-25 02:56:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-25 02:56:03,987 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:03,987 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:03,987 INFO L371 AbstractCegarLoop]: === Iteration 4 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:03,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1408600152, now seen corresponding path program 1 times [2018-01-25 02:56:03,987 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:03,988 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:03,988 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:03,989 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:03,989 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:04,008 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:04,041 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:56:04,041 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 02:56:04,041 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:04,042 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 02:56:04,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 02:56:04,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:56:04,042 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand 3 states. [2018-01-25 02:56:04,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:56:04,116 INFO L93 Difference]: Finished difference Result 148 states and 206 transitions. [2018-01-25 02:56:04,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 02:56:04,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-25 02:56:04,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:56:04,119 INFO L225 Difference]: With dead ends: 148 [2018-01-25 02:56:04,119 INFO L226 Difference]: Without dead ends: 143 [2018-01-25 02:56:04,120 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 [2018-01-25 02:56:04,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-01-25 02:56:04,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 135. [2018-01-25 02:56:04,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-01-25 02:56:04,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 192 transitions. [2018-01-25 02:56:04,139 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 192 transitions. Word has length 13 [2018-01-25 02:56:04,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:56:04,140 INFO L432 AbstractCegarLoop]: Abstraction has 135 states and 192 transitions. [2018-01-25 02:56:04,140 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 02:56:04,140 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 192 transitions. [2018-01-25 02:56:04,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 02:56:04,141 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:04,141 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:04,141 INFO L371 AbstractCegarLoop]: === Iteration 5 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:04,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1628464921, now seen corresponding path program 1 times [2018-01-25 02:56:04,142 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:04,143 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:04,143 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:04,143 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:04,143 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:04,160 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:04,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:04,229 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:56:04,229 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 02:56:04,229 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:04,229 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 02:56:04,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 02:56:04,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 02:56:04,230 INFO L87 Difference]: Start difference. First operand 135 states and 192 transitions. Second operand 5 states. [2018-01-25 02:56:04,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:56:04,345 INFO L93 Difference]: Finished difference Result 385 states and 558 transitions. [2018-01-25 02:56:04,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 02:56:04,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-01-25 02:56:04,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:56:04,349 INFO L225 Difference]: With dead ends: 385 [2018-01-25 02:56:04,350 INFO L226 Difference]: Without dead ends: 255 [2018-01-25 02:56:04,352 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-25 02:56:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-01-25 02:56:04,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 226. [2018-01-25 02:56:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-01-25 02:56:04,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 338 transitions. [2018-01-25 02:56:04,380 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 338 transitions. Word has length 15 [2018-01-25 02:56:04,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:56:04,380 INFO L432 AbstractCegarLoop]: Abstraction has 226 states and 338 transitions. [2018-01-25 02:56:04,380 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 02:56:04,381 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 338 transitions. [2018-01-25 02:56:04,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 02:56:04,381 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:04,382 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:04,382 INFO L371 AbstractCegarLoop]: === Iteration 6 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:04,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1057474006, now seen corresponding path program 1 times [2018-01-25 02:56:04,382 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:04,383 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:04,383 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:04,384 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:04,384 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:04,399 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:04,438 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:56:04,438 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 02:56:04,438 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:04,439 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 02:56:04,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 02:56:04,439 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 02:56:04,439 INFO L87 Difference]: Start difference. First operand 226 states and 338 transitions. Second operand 4 states. [2018-01-25 02:56:04,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:56:04,610 INFO L93 Difference]: Finished difference Result 390 states and 581 transitions. [2018-01-25 02:56:04,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 02:56:04,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-25 02:56:04,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:56:04,615 INFO L225 Difference]: With dead ends: 390 [2018-01-25 02:56:04,615 INFO L226 Difference]: Without dead ends: 386 [2018-01-25 02:56:04,616 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 02:56:04,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-01-25 02:56:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 358. [2018-01-25 02:56:04,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-01-25 02:56:04,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 548 transitions. [2018-01-25 02:56:04,653 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 548 transitions. Word has length 16 [2018-01-25 02:56:04,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:56:04,653 INFO L432 AbstractCegarLoop]: Abstraction has 358 states and 548 transitions. [2018-01-25 02:56:04,654 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 02:56:04,654 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 548 transitions. [2018-01-25 02:56:04,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 02:56:04,655 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:04,655 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:04,655 INFO L371 AbstractCegarLoop]: === Iteration 7 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:04,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1057474005, now seen corresponding path program 1 times [2018-01-25 02:56:04,656 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:04,657 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:04,657 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:04,657 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:04,657 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:04,674 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:04,760 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:56:04,760 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 02:56:04,760 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:04,761 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 02:56:04,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 02:56:04,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 02:56:04,761 INFO L87 Difference]: Start difference. First operand 358 states and 548 transitions. Second operand 4 states. [2018-01-25 02:56:04,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:56:04,903 INFO L93 Difference]: Finished difference Result 489 states and 728 transitions. [2018-01-25 02:56:04,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 02:56:04,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-25 02:56:04,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:56:04,908 INFO L225 Difference]: With dead ends: 489 [2018-01-25 02:56:04,909 INFO L226 Difference]: Without dead ends: 485 [2018-01-25 02:56:04,909 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 02:56:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-01-25 02:56:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 460. [2018-01-25 02:56:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2018-01-25 02:56:04,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 696 transitions. [2018-01-25 02:56:04,947 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 696 transitions. Word has length 16 [2018-01-25 02:56:04,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:56:04,947 INFO L432 AbstractCegarLoop]: Abstraction has 460 states and 696 transitions. [2018-01-25 02:56:04,947 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 02:56:04,947 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 696 transitions. [2018-01-25 02:56:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 02:56:04,948 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:04,948 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:04,948 INFO L371 AbstractCegarLoop]: === Iteration 8 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:04,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1708141764, now seen corresponding path program 1 times [2018-01-25 02:56:04,949 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:04,950 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:04,950 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:04,950 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:04,950 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:04,965 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:05,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:05,007 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:56:05,007 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 02:56:05,007 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:05,008 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 02:56:05,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 02:56:05,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 02:56:05,009 INFO L87 Difference]: Start difference. First operand 460 states and 696 transitions. Second operand 5 states. [2018-01-25 02:56:05,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:56:05,260 INFO L93 Difference]: Finished difference Result 1316 states and 1982 transitions. [2018-01-25 02:56:05,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 02:56:05,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-01-25 02:56:05,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:56:05,270 INFO L225 Difference]: With dead ends: 1316 [2018-01-25 02:56:05,270 INFO L226 Difference]: Without dead ends: 861 [2018-01-25 02:56:05,273 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-25 02:56:05,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-01-25 02:56:05,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 828. [2018-01-25 02:56:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2018-01-25 02:56:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1196 transitions. [2018-01-25 02:56:05,406 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1196 transitions. Word has length 16 [2018-01-25 02:56:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:56:05,406 INFO L432 AbstractCegarLoop]: Abstraction has 828 states and 1196 transitions. [2018-01-25 02:56:05,406 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 02:56:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1196 transitions. [2018-01-25 02:56:05,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-25 02:56:05,408 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:56:05,408 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:56:05,408 INFO L371 AbstractCegarLoop]: === Iteration 9 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-25 02:56:05,408 INFO L82 PathProgramCache]: Analyzing trace with hash 750766986, now seen corresponding path program 1 times [2018-01-25 02:56:05,408 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:56:05,411 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:05,414 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:56:05,414 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:56:05,415 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:56:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:56:05,440 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:56:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:56:05,870 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 02:56:05,870 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 02:56:05,871 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-01-25 02:56:05,875 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [15], [21], [98], [101], [102], [112], [115], [117], [145], [146], [147], [153], [154], [155], [156], [157] [2018-01-25 02:56:05,956 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 02:56:05,957 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 02:56:06,384 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-25 02:56:06,386 INFO L268 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 39 variables. [2018-01-25 02:56:06,393 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-25 02:56:06,556 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 82.63% of their original sizes. [2018-01-25 02:56:06,556 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-25 02:56:06,576 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-25 02:56:06,577 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-25 02:56:06,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-01-25 02:56:06,577 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:56:06,578 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 02:56:06,578 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 02:56:06,578 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-25 02:56:06,579 INFO L87 Difference]: Start difference. First operand 828 states and 1196 transitions. Second operand 6 states. Received shutdown request... [2018-01-25 02:57:07,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 02:57:07,486 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-25 02:57:07,493 WARN L187 ceAbstractionStarter]: Timeout [2018-01-25 02:57:07,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 02:57:07 BoogieIcfgContainer [2018-01-25 02:57:07,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 02:57:07,495 INFO L168 Benchmark]: Toolchain (without parser) took 65015.79 ms. Allocated memory was 308.3 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 266.6 MB in the beginning and 1.1 GB in the end (delta: -824.6 MB). Peak memory consumption was 950.6 MB. Max. memory is 5.3 GB. [2018-01-25 02:57:07,497 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 308.3 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 02:57:07,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.13 ms. Allocated memory is still 308.3 MB. Free memory was 265.5 MB in the beginning and 254.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:57:07,498 INFO L168 Benchmark]: Boogie Preprocessor took 54.08 ms. Allocated memory is still 308.3 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:57:07,498 INFO L168 Benchmark]: RCFGBuilder took 440.29 ms. Allocated memory is still 308.3 MB. Free memory was 252.6 MB in the beginning and 227.0 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 5.3 GB. [2018-01-25 02:57:07,498 INFO L168 Benchmark]: TraceAbstraction took 64259.28 ms. Allocated memory was 308.3 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 227.0 MB in the beginning and 1.1 GB in the end (delta: -864.2 MB). Peak memory consumption was 911.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:57:07,500 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 308.3 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 252.13 ms. Allocated memory is still 308.3 MB. Free memory was 265.5 MB in the beginning and 254.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 54.08 ms. Allocated memory is still 308.3 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 440.29 ms. Allocated memory is still 308.3 MB. Free memory was 252.6 MB in the beginning and 227.0 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 64259.28 ms. Allocated memory was 308.3 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 227.0 MB in the beginning and 1.1 GB in the end (delta: -864.2 MB). Peak memory consumption was 911.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 7 LocStat_MAX_WEQGRAPH_SIZE : 1 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 175 LocStat_NO_SUPPORTING_DISEQUALITIES : 0 LocStat_NO_DISJUNCTIONS : -14 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 12 TransStat_MAX_WEQGRAPH_SIZE : 1 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 94 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 15 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.962713 RENAME_VARIABLES(MILLISECONDS) : 0.210363 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.873302 PROJECTAWAY(MILLISECONDS) : 0.054284 ADD_WEAK_EQUALITY(MILLISECONDS) : 6.961991 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.257788 ADD_EQUALITY(MILLISECONDS) : 0.047987 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.012865 #CONJOIN_DISJUNCTIVE : 15 #RENAME_VARIABLES : 26 #UNFREEZE : 0 #CONJOIN : 106 #PROJECTAWAY : 25 #ADD_WEAK_EQUALITY : 1 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 23 #ADD_EQUALITY : 92 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 681). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 682). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 682). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 681). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 672). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 672). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 698). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 697). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 698). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 697). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 688]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 688). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 19 error locations. TIMEOUT Result, 64.2s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 61.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 833 SDtfs, 420 SDslu, 1149 SDs, 0 SdLazy, 266 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=828occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9787581699346404 AbsIntWeakeningRatio, 1.08 AbsIntAvgWeakeningVarsNumRemoved, 9.28 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 141 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 4489 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 7/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_02-57-07-548.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-25_02-57-07-548.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_02-57-07-548.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-25_02-57-07-548.csv Completed graceful shutdown