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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/memsafety-ext/tree_stack_true-valid-memsafety_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:10:19,191 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:10:19,193 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:10:19,205 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:10:19,206 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:10:19,207 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:10:19,208 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:10:19,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:10:19,212 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:10:19,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:10:19,213 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:10:19,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:10:19,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:10:19,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:10:19,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:10:19,223 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:10:19,225 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:10:19,227 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:10:19,228 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:10:19,229 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:10:19,230 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:10:19,231 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:10:19,231 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:10:19,232 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:10:19,233 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:10:19,234 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:10:19,234 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:10:19,234 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:10:19,235 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:10:19,235 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:10:19,235 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:10:19,236 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:10:19,245 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:10:19,246 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:10:19,246 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:10:19,247 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:10:19,247 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:10:19,247 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:10:19,247 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:10:19,247 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:10:19,247 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:10:19,248 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:10:19,248 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:10:19,248 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:10:19,248 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:10:19,248 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:10:19,248 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:10:19,248 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:10:19,249 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:10:19,249 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:10:19,249 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:10:19,249 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:10:19,249 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:10:19,249 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:10:19,250 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:10:19,250 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:10:19,250 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:10:19,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:10:19,288 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:10:19,291 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:10:19,292 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:10:19,292 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:10:19,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/tree_stack_true-valid-memsafety_false-termination.i [2018-02-04 04:10:19,422 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:10:19,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:10:19,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:10:19,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:10:19,430 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:10:19,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3775d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19, skipping insertion in model container [2018-02-04 04:10:19,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,446 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:10:19,475 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:10:19,564 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:10:19,584 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:10:19,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19 WrapperNode [2018-02-04 04:10:19,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:10:19,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:10:19,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:10:19,590 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:10:19,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (1/1) ... [2018-02-04 04:10:19,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:10:19,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:10:19,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:10:19,615 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:10:19,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 04:10:19,652 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:10:19,652 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:10:19,652 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:10:19,652 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:10:19,653 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:10:20,081 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:10:20,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:10:20 BoogieIcfgContainer [2018-02-04 04:10:20,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:10:20,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:10:20,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:10:20,085 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:10:20,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:10:19" (1/3) ... [2018-02-04 04:10:20,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630db8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:10:20, skipping insertion in model container [2018-02-04 04:10:20,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:19" (2/3) ... [2018-02-04 04:10:20,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630db8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:10:20, skipping insertion in model container [2018-02-04 04:10:20,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:10:20" (3/3) ... [2018-02-04 04:10:20,088 INFO L107 eAbstractionObserver]: Analyzing ICFG tree_stack_true-valid-memsafety_false-termination.i [2018-02-04 04:10:20,094 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:10:20,099 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 65 error locations. [2018-02-04 04:10:20,123 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:10:20,123 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:10:20,123 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:10:20,124 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:10:20,124 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:10:20,124 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:10:20,124 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:10:20,124 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:10:20,125 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:10:20,136 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-02-04 04:10:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:10:20,143 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:20,144 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:20,144 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:20,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1338247859, now seen corresponding path program 1 times [2018-02-04 04:10:20,148 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:20,149 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:20,177 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:20,177 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:20,177 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:20,205 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:20,242 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:20,242 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:20,243 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:20,250 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:20,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:20,252 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 4 states. [2018-02-04 04:10:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:20,491 INFO L93 Difference]: Finished difference Result 162 states and 173 transitions. [2018-02-04 04:10:20,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:10:20,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 04:10:20,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:20,497 INFO L225 Difference]: With dead ends: 162 [2018-02-04 04:10:20,498 INFO L226 Difference]: Without dead ends: 158 [2018-02-04 04:10:20,499 INFO L554 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 [2018-02-04 04:10:20,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-02-04 04:10:20,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 142. [2018-02-04 04:10:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-02-04 04:10:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions. [2018-02-04 04:10:20,527 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 8 [2018-02-04 04:10:20,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:20,527 INFO L432 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions. [2018-02-04 04:10:20,527 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions. [2018-02-04 04:10:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:10:20,528 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:20,528 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:20,528 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:20,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1338247858, now seen corresponding path program 1 times [2018-02-04 04:10:20,528 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:20,528 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:20,529 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:20,529 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:20,529 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:20,540 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:20,572 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:20,572 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:20,573 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:20,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:20,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:20,574 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand 4 states. [2018-02-04 04:10:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:20,699 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2018-02-04 04:10:20,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:10:20,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 04:10:20,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:20,701 INFO L225 Difference]: With dead ends: 140 [2018-02-04 04:10:20,701 INFO L226 Difference]: Without dead ends: 140 [2018-02-04 04:10:20,702 INFO L554 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 [2018-02-04 04:10:20,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-02-04 04:10:20,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-02-04 04:10:20,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-02-04 04:10:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2018-02-04 04:10:20,710 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 8 [2018-02-04 04:10:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:20,710 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2018-02-04 04:10:20,710 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2018-02-04 04:10:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:10:20,711 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:20,711 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:20,711 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:20,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1963213562, now seen corresponding path program 1 times [2018-02-04 04:10:20,712 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:20,712 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:20,713 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:20,713 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:20,713 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:20,727 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:20,754 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:20,755 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:20,755 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:20,755 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:20,755 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:20,755 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 4 states. [2018-02-04 04:10:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:20,881 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2018-02-04 04:10:20,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:10:20,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 04:10:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:20,884 INFO L225 Difference]: With dead ends: 148 [2018-02-04 04:10:20,884 INFO L226 Difference]: Without dead ends: 148 [2018-02-04 04:10:20,884 INFO L554 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 [2018-02-04 04:10:20,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-02-04 04:10:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 127. [2018-02-04 04:10:20,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-02-04 04:10:20,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2018-02-04 04:10:20,890 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 14 [2018-02-04 04:10:20,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:20,890 INFO L432 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2018-02-04 04:10:20,891 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:20,891 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2018-02-04 04:10:20,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:10:20,891 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:20,891 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:20,891 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:20,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1963213563, now seen corresponding path program 1 times [2018-02-04 04:10:20,891 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:20,891 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:20,892 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:20,892 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:20,892 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:20,901 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:20,955 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:20,955 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:10:20,955 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:10:20,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:10:20,955 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:20,956 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand 5 states. [2018-02-04 04:10:21,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:21,120 INFO L93 Difference]: Finished difference Result 173 states and 191 transitions. [2018-02-04 04:10:21,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:10:21,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 04:10:21,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:21,122 INFO L225 Difference]: With dead ends: 173 [2018-02-04 04:10:21,122 INFO L226 Difference]: Without dead ends: 173 [2018-02-04 04:10:21,122 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:10:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-02-04 04:10:21,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 157. [2018-02-04 04:10:21,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-04 04:10:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 180 transitions. [2018-02-04 04:10:21,130 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 180 transitions. Word has length 14 [2018-02-04 04:10:21,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:21,131 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 180 transitions. [2018-02-04 04:10:21,131 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:10:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 180 transitions. [2018-02-04 04:10:21,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:10:21,131 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:21,131 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:21,131 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:21,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1159097560, now seen corresponding path program 1 times [2018-02-04 04:10:21,131 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:21,132 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:21,132 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,132 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:21,132 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:21,142 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:21,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:21,164 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:21,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:21,165 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:21,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:21,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:21,165 INFO L87 Difference]: Start difference. First operand 157 states and 180 transitions. Second operand 4 states. [2018-02-04 04:10:21,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:21,248 INFO L93 Difference]: Finished difference Result 170 states and 193 transitions. [2018-02-04 04:10:21,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:10:21,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-02-04 04:10:21,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:21,249 INFO L225 Difference]: With dead ends: 170 [2018-02-04 04:10:21,249 INFO L226 Difference]: Without dead ends: 170 [2018-02-04 04:10:21,250 INFO L554 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 [2018-02-04 04:10:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-02-04 04:10:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 158. [2018-02-04 04:10:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-02-04 04:10:21,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 183 transitions. [2018-02-04 04:10:21,254 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 183 transitions. Word has length 16 [2018-02-04 04:10:21,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:21,254 INFO L432 AbstractCegarLoop]: Abstraction has 158 states and 183 transitions. [2018-02-04 04:10:21,254 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:21,254 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 183 transitions. [2018-02-04 04:10:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:10:21,254 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:21,254 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:21,255 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:21,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1159097561, now seen corresponding path program 1 times [2018-02-04 04:10:21,255 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:21,255 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:21,255 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,256 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:21,256 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:21,263 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:21,311 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:21,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:21,311 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:21,311 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:21,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:21,312 INFO L87 Difference]: Start difference. First operand 158 states and 183 transitions. Second operand 4 states. [2018-02-04 04:10:21,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:21,399 INFO L93 Difference]: Finished difference Result 160 states and 183 transitions. [2018-02-04 04:10:21,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:10:21,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-02-04 04:10:21,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:21,400 INFO L225 Difference]: With dead ends: 160 [2018-02-04 04:10:21,400 INFO L226 Difference]: Without dead ends: 160 [2018-02-04 04:10:21,400 INFO L554 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 [2018-02-04 04:10:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-02-04 04:10:21,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2018-02-04 04:10:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-02-04 04:10:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 180 transitions. [2018-02-04 04:10:21,405 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 180 transitions. Word has length 16 [2018-02-04 04:10:21,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:21,406 INFO L432 AbstractCegarLoop]: Abstraction has 156 states and 180 transitions. [2018-02-04 04:10:21,406 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:21,406 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 180 transitions. [2018-02-04 04:10:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 04:10:21,407 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:21,407 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:21,407 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:21,407 INFO L82 PathProgramCache]: Analyzing trace with hash 990226269, now seen corresponding path program 1 times [2018-02-04 04:10:21,407 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:21,407 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:21,408 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,408 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:21,408 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:21,418 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:21,446 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:21,446 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:10:21,446 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:21,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:21,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:21,447 INFO L87 Difference]: Start difference. First operand 156 states and 180 transitions. Second operand 4 states. [2018-02-04 04:10:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:21,475 INFO L93 Difference]: Finished difference Result 157 states and 180 transitions. [2018-02-04 04:10:21,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:10:21,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-02-04 04:10:21,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:21,477 INFO L225 Difference]: With dead ends: 157 [2018-02-04 04:10:21,477 INFO L226 Difference]: Without dead ends: 157 [2018-02-04 04:10:21,477 INFO L554 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 [2018-02-04 04:10:21,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-02-04 04:10:21,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2018-02-04 04:10:21,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-02-04 04:10:21,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 179 transitions. [2018-02-04 04:10:21,482 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 179 transitions. Word has length 21 [2018-02-04 04:10:21,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:21,482 INFO L432 AbstractCegarLoop]: Abstraction has 156 states and 179 transitions. [2018-02-04 04:10:21,483 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:21,483 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 179 transitions. [2018-02-04 04:10:21,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:10:21,483 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:21,483 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:21,484 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:21,484 INFO L82 PathProgramCache]: Analyzing trace with hash 632244512, now seen corresponding path program 1 times [2018-02-04 04:10:21,484 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:21,484 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:21,485 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,485 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:21,485 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:21,495 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:21,532 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:21,532 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:10:21,532 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:10:21,533 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:10:21,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:21,533 INFO L87 Difference]: Start difference. First operand 156 states and 179 transitions. Second operand 5 states. [2018-02-04 04:10:21,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:21,619 INFO L93 Difference]: Finished difference Result 171 states and 195 transitions. [2018-02-04 04:10:21,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:10:21,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-04 04:10:21,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:21,620 INFO L225 Difference]: With dead ends: 171 [2018-02-04 04:10:21,620 INFO L226 Difference]: Without dead ends: 171 [2018-02-04 04:10:21,620 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:10:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-02-04 04:10:21,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 155. [2018-02-04 04:10:21,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-02-04 04:10:21,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 179 transitions. [2018-02-04 04:10:21,625 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 179 transitions. Word has length 22 [2018-02-04 04:10:21,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:21,625 INFO L432 AbstractCegarLoop]: Abstraction has 155 states and 179 transitions. [2018-02-04 04:10:21,625 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:10:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 179 transitions. [2018-02-04 04:10:21,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:10:21,626 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:21,626 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:21,626 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:21,626 INFO L82 PathProgramCache]: Analyzing trace with hash 632244513, now seen corresponding path program 1 times [2018-02-04 04:10:21,626 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:21,626 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:21,627 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,627 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:21,627 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:21,637 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:21,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:21,680 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:21,681 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:10:21,681 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:10:21,681 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:10:21,681 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:21,681 INFO L87 Difference]: Start difference. First operand 155 states and 179 transitions. Second operand 5 states. [2018-02-04 04:10:21,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:21,812 INFO L93 Difference]: Finished difference Result 175 states and 200 transitions. [2018-02-04 04:10:21,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:10:21,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-04 04:10:21,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:21,813 INFO L225 Difference]: With dead ends: 175 [2018-02-04 04:10:21,813 INFO L226 Difference]: Without dead ends: 175 [2018-02-04 04:10:21,813 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:10:21,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-02-04 04:10:21,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2018-02-04 04:10:21,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-04 04:10:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 180 transitions. [2018-02-04 04:10:21,816 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 180 transitions. Word has length 22 [2018-02-04 04:10:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:21,816 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 180 transitions. [2018-02-04 04:10:21,816 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:10:21,816 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 180 transitions. [2018-02-04 04:10:21,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:10:21,817 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:21,817 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:21,817 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:21,817 INFO L82 PathProgramCache]: Analyzing trace with hash -733762389, now seen corresponding path program 1 times [2018-02-04 04:10:21,818 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:21,818 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:21,818 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,818 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:21,819 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:21,825 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:21,845 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:21,845 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:21,845 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:10:21,845 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:10:21,845 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:10:21,845 INFO L87 Difference]: Start difference. First operand 157 states and 180 transitions. Second operand 3 states. [2018-02-04 04:10:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:21,850 INFO L93 Difference]: Finished difference Result 159 states and 182 transitions. [2018-02-04 04:10:21,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:10:21,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-02-04 04:10:21,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:21,850 INFO L225 Difference]: With dead ends: 159 [2018-02-04 04:10:21,850 INFO L226 Difference]: Without dead ends: 159 [2018-02-04 04:10:21,851 INFO L554 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 [2018-02-04 04:10:21,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-02-04 04:10:21,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-02-04 04:10:21,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-02-04 04:10:21,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 182 transitions. [2018-02-04 04:10:21,853 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 182 transitions. Word has length 22 [2018-02-04 04:10:21,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:21,853 INFO L432 AbstractCegarLoop]: Abstraction has 159 states and 182 transitions. [2018-02-04 04:10:21,853 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:10:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 182 transitions. [2018-02-04 04:10:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 04:10:21,854 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:21,854 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:21,854 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr64EnsuresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:21,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1797349272, now seen corresponding path program 1 times [2018-02-04 04:10:21,854 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:21,854 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:21,855 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,855 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:21,855 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:21,862 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:21,866 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:10:21,869 INFO L168 Benchmark]: Toolchain (without parser) took 2446.20 ms. Allocated memory was 407.4 MB in the beginning and 632.8 MB in the end (delta: 225.4 MB). Free memory was 364.2 MB in the beginning and 474.3 MB in the end (delta: -110.1 MB). Peak memory consumption was 115.4 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:21,870 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 407.4 MB. Free memory is still 369.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:10:21,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.39 ms. Allocated memory is still 407.4 MB. Free memory was 364.2 MB in the beginning and 353.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:21,871 INFO L168 Benchmark]: Boogie Preprocessor took 25.58 ms. Allocated memory is still 407.4 MB. Free memory was 353.7 MB in the beginning and 351.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:21,871 INFO L168 Benchmark]: RCFGBuilder took 466.52 ms. Allocated memory is still 407.4 MB. Free memory was 351.0 MB in the beginning and 310.5 MB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:21,871 INFO L168 Benchmark]: TraceAbstraction took 1785.97 ms. Allocated memory was 407.4 MB in the beginning and 632.8 MB in the end (delta: 225.4 MB). Free memory was 310.5 MB in the beginning and 474.3 MB in the end (delta: -163.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:21,872 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 407.4 MB. Free memory is still 369.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 165.39 ms. Allocated memory is still 407.4 MB. Free memory was 364.2 MB in the beginning and 353.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.58 ms. Allocated memory is still 407.4 MB. Free memory was 353.7 MB in the beginning and 351.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 466.52 ms. Allocated memory is still 407.4 MB. Free memory was 351.0 MB in the beginning and 310.5 MB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1785.97 ms. Allocated memory was 407.4 MB in the beginning and 632.8 MB in the end (delta: 225.4 MB). Free memory was 310.5 MB in the beginning and 474.3 MB in the end (delta: -163.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/tree_stack_true-valid-memsafety_false-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-10-21-878.csv Received shutdown request...