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/forester-heap/dll-token_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:19:21,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:19:21,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:19:21,514 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:19:21,514 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:19:21,515 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:19:21,515 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:19:21,517 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:19:21,519 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:19:21,519 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:19:21,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:19:21,520 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:19:21,521 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:19:21,522 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:19:21,523 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:19:21,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:19:21,526 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:19:21,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:19:21,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:19:21,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:19:21,531 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:19:21,532 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:19:21,532 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:19:21,533 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:19:21,533 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:19:21,534 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:19:21,534 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:19:21,535 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:19:21,535 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:19:21,535 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:19:21,536 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:19:21,536 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 04:19:21,546 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:19:21,546 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:19:21,547 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:19:21,548 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:19:21,548 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:19:21,548 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:19:21,548 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:19:21,548 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:19:21,549 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:19:21,549 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:19:21,549 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:19:21,549 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:19:21,549 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:19:21,549 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:19:21,549 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:19:21,549 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:19:21,550 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:19:21,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:19:21,550 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:19:21,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:19:21,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:19:21,550 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:19:21,551 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:19:21,551 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:19:21,551 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:19:21,580 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:19:21,590 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:19:21,593 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:19:21,595 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:19:21,595 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:19:21,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:19:21,729 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:19:21,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:19:21,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:19:21,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:19:21,738 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:19:21,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3643a13b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21, skipping insertion in model container [2018-02-04 04:19:21,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,759 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:19:21,794 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:19:21,887 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:19:21,901 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:19:21,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21 WrapperNode [2018-02-04 04:19:21,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:19:21,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:19:21,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:19:21,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:19:21,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (1/1) ... [2018-02-04 04:19:21,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:19:21,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:19:21,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:19:21,936 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:19:21,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (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 04:19:21,969 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:19:21,969 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:19:21,969 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:19:21,969 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:19:21,969 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:19:21,969 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:19:21,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:19:22,291 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:19:22,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:19:22 BoogieIcfgContainer [2018-02-04 04:19:22,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:19:22,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:19:22,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:19:22,294 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:19:22,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:19:21" (1/3) ... [2018-02-04 04:19:22,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4052411a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:19:22, skipping insertion in model container [2018-02-04 04:19:22,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:21" (2/3) ... [2018-02-04 04:19:22,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4052411a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:19:22, skipping insertion in model container [2018-02-04 04:19:22,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:19:22" (3/3) ... [2018-02-04 04:19:22,297 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-token_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:19:22,302 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:19:22,307 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-02-04 04:19:22,336 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:19:22,336 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:19:22,337 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:19:22,337 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:19:22,337 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:19:22,337 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:19:22,337 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:19:22,337 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:19:22,338 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:19:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-02-04 04:19:22,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:19:22,359 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:22,360 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:22,360 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:22,363 INFO L82 PathProgramCache]: Analyzing trace with hash 460791465, now seen corresponding path program 1 times [2018-02-04 04:19:22,364 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:22,364 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:22,395 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:22,396 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:22,396 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:22,428 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:22,473 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 04:19:22,474 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:22,475 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:19:22,476 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:19:22,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:19:22,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:19:22,486 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 4 states. [2018-02-04 04:19:22,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:22,725 INFO L93 Difference]: Finished difference Result 152 states and 155 transitions. [2018-02-04 04:19:22,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:19:22,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 04:19:22,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:22,734 INFO L225 Difference]: With dead ends: 152 [2018-02-04 04:19:22,734 INFO L226 Difference]: Without dead ends: 149 [2018-02-04 04:19:22,736 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 04:19:22,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-04 04:19:22,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2018-02-04 04:19:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-04 04:19:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2018-02-04 04:19:22,765 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 8 [2018-02-04 04:19:22,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:22,765 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2018-02-04 04:19:22,765 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:19:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2018-02-04 04:19:22,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:19:22,766 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:22,766 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:22,766 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:22,766 INFO L82 PathProgramCache]: Analyzing trace with hash 460791466, now seen corresponding path program 1 times [2018-02-04 04:19:22,766 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:22,766 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:22,767 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:22,767 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:22,768 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:22,780 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:22,833 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 04:19:22,834 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:22,834 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:19:22,835 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:19:22,835 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:19:22,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:19:22,835 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand 4 states. [2018-02-04 04:19:22,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:22,931 INFO L93 Difference]: Finished difference Result 146 states and 148 transitions. [2018-02-04 04:19:22,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:19:22,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 04:19:22,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:22,932 INFO L225 Difference]: With dead ends: 146 [2018-02-04 04:19:22,932 INFO L226 Difference]: Without dead ends: 146 [2018-02-04 04:19:22,933 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 04:19:22,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-04 04:19:22,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2018-02-04 04:19:22,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-02-04 04:19:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2018-02-04 04:19:22,940 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 8 [2018-02-04 04:19:22,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:22,940 INFO L432 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2018-02-04 04:19:22,940 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:19:22,940 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2018-02-04 04:19:22,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:19:22,941 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:22,941 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:22,941 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:22,941 INFO L82 PathProgramCache]: Analyzing trace with hash 108566574, now seen corresponding path program 1 times [2018-02-04 04:19:22,941 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:22,942 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:22,942 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:22,943 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:22,943 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:22,958 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:23,018 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 04:19:23,018 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:23,018 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:19:23,018 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:19:23,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:19:23,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:23,019 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand 5 states. [2018-02-04 04:19:23,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:23,265 INFO L93 Difference]: Finished difference Result 223 states and 227 transitions. [2018-02-04 04:19:23,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:19:23,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-04 04:19:23,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:23,267 INFO L225 Difference]: With dead ends: 223 [2018-02-04 04:19:23,267 INFO L226 Difference]: Without dead ends: 223 [2018-02-04 04:19:23,267 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 04:19:23,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-02-04 04:19:23,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 165. [2018-02-04 04:19:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-02-04 04:19:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 194 transitions. [2018-02-04 04:19:23,275 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 194 transitions. Word has length 15 [2018-02-04 04:19:23,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:23,275 INFO L432 AbstractCegarLoop]: Abstraction has 165 states and 194 transitions. [2018-02-04 04:19:23,276 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:19:23,276 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 194 transitions. [2018-02-04 04:19:23,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:19:23,276 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:23,276 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:23,276 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:23,277 INFO L82 PathProgramCache]: Analyzing trace with hash 108566573, now seen corresponding path program 1 times [2018-02-04 04:19:23,277 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:23,277 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:23,278 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:23,278 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:23,278 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:23,289 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:23,315 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 04:19:23,315 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:23,315 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:19:23,315 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:19:23,316 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:19:23,316 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:19:23,316 INFO L87 Difference]: Start difference. First operand 165 states and 194 transitions. Second operand 4 states. [2018-02-04 04:19:23,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:23,427 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2018-02-04 04:19:23,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:19:23,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-02-04 04:19:23,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:23,428 INFO L225 Difference]: With dead ends: 152 [2018-02-04 04:19:23,428 INFO L226 Difference]: Without dead ends: 152 [2018-02-04 04:19:23,428 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 04:19:23,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-02-04 04:19:23,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2018-02-04 04:19:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-02-04 04:19:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 162 transitions. [2018-02-04 04:19:23,433 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 162 transitions. Word has length 15 [2018-02-04 04:19:23,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:23,433 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 162 transitions. [2018-02-04 04:19:23,433 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:19:23,433 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 162 transitions. [2018-02-04 04:19:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:19:23,434 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:23,434 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:23,434 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:23,434 INFO L82 PathProgramCache]: Analyzing trace with hash 197081690, now seen corresponding path program 1 times [2018-02-04 04:19:23,434 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:23,434 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:23,435 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:23,435 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:23,435 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:23,445 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:23,522 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 04:19:23,522 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:23,522 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:19:23,523 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:19:23,523 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:19:23,523 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:23,523 INFO L87 Difference]: Start difference. First operand 150 states and 162 transitions. Second operand 5 states. [2018-02-04 04:19:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:23,706 INFO L93 Difference]: Finished difference Result 240 states and 255 transitions. [2018-02-04 04:19:23,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:19:23,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-04 04:19:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:23,707 INFO L225 Difference]: With dead ends: 240 [2018-02-04 04:19:23,707 INFO L226 Difference]: Without dead ends: 240 [2018-02-04 04:19:23,707 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 04:19:23,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-02-04 04:19:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 149. [2018-02-04 04:19:23,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-04 04:19:23,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 160 transitions. [2018-02-04 04:19:23,713 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 160 transitions. Word has length 18 [2018-02-04 04:19:23,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:23,713 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 160 transitions. [2018-02-04 04:19:23,713 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:19:23,714 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2018-02-04 04:19:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:19:23,714 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:23,714 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:23,714 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:23,715 INFO L82 PathProgramCache]: Analyzing trace with hash 197081689, now seen corresponding path program 1 times [2018-02-04 04:19:23,715 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:23,715 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:23,716 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:23,716 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:23,716 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:23,727 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:23,757 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 04:19:23,758 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:23,758 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:19:23,758 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:19:23,758 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:19:23,758 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:23,758 INFO L87 Difference]: Start difference. First operand 149 states and 160 transitions. Second operand 5 states. [2018-02-04 04:19:23,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:23,901 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2018-02-04 04:19:23,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:19:23,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-04 04:19:23,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:23,902 INFO L225 Difference]: With dead ends: 212 [2018-02-04 04:19:23,902 INFO L226 Difference]: Without dead ends: 212 [2018-02-04 04:19:23,902 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 04:19:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-02-04 04:19:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 148. [2018-02-04 04:19:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-02-04 04:19:23,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2018-02-04 04:19:23,906 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 18 [2018-02-04 04:19:23,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:23,907 INFO L432 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2018-02-04 04:19:23,907 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:19:23,907 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2018-02-04 04:19:23,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:19:23,907 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:23,907 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:23,907 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:23,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1794584241, now seen corresponding path program 1 times [2018-02-04 04:19:23,908 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:23,908 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:23,908 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:23,908 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:23,908 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:23,919 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:23,947 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 04:19:23,948 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:23,948 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:19:23,948 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:19:23,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:19:23,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:23,948 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand 5 states. [2018-02-04 04:19:24,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:24,028 INFO L93 Difference]: Finished difference Result 149 states and 156 transitions. [2018-02-04 04:19:24,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:19:24,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-04 04:19:24,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:24,029 INFO L225 Difference]: With dead ends: 149 [2018-02-04 04:19:24,029 INFO L226 Difference]: Without dead ends: 149 [2018-02-04 04:19:24,029 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 04:19:24,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-04 04:19:24,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2018-02-04 04:19:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-02-04 04:19:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2018-02-04 04:19:24,033 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 19 [2018-02-04 04:19:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:24,033 INFO L432 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2018-02-04 04:19:24,033 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:19:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2018-02-04 04:19:24,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:19:24,034 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:24,034 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:24,034 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:24,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1794584242, now seen corresponding path program 1 times [2018-02-04 04:19:24,034 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:24,034 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:24,035 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:24,035 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:24,035 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:24,045 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:24,085 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 04:19:24,085 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:24,085 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:19:24,086 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:19:24,086 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:19:24,086 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:24,086 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand 5 states. [2018-02-04 04:19:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:24,176 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2018-02-04 04:19:24,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:19:24,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-04 04:19:24,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:24,177 INFO L225 Difference]: With dead ends: 146 [2018-02-04 04:19:24,177 INFO L226 Difference]: Without dead ends: 146 [2018-02-04 04:19:24,177 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 04:19:24,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-04 04:19:24,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-02-04 04:19:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-02-04 04:19:24,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2018-02-04 04:19:24,181 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 19 [2018-02-04 04:19:24,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:24,181 INFO L432 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2018-02-04 04:19:24,181 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:19:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2018-02-04 04:19:24,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:19:24,182 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:24,182 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 04:19:24,182 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:24,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1293732257, now seen corresponding path program 1 times [2018-02-04 04:19:24,182 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:24,182 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:24,183 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:24,183 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:24,183 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:24,198 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:24,205 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 04:19:24,212 INFO L168 Benchmark]: Toolchain (without parser) took 2482.33 ms. Allocated memory was 404.8 MB in the beginning and 629.7 MB in the end (delta: 224.9 MB). Free memory was 361.6 MB in the beginning and 451.9 MB in the end (delta: -90.3 MB). Peak memory consumption was 134.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:24,213 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:19:24,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.59 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 349.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:24,213 INFO L168 Benchmark]: Boogie Preprocessor took 29.21 ms. Allocated memory is still 404.8 MB. Free memory was 349.7 MB in the beginning and 348.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:24,213 INFO L168 Benchmark]: RCFGBuilder took 355.22 ms. Allocated memory is still 404.8 MB. Free memory was 348.4 MB in the beginning and 313.0 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:24,214 INFO L168 Benchmark]: TraceAbstraction took 1919.03 ms. Allocated memory was 404.8 MB in the beginning and 629.7 MB in the end (delta: 224.9 MB). Free memory was 311.7 MB in the beginning and 451.9 MB in the end (delta: -140.2 MB). Peak memory consumption was 84.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:24,215 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 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 175.59 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 349.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.21 ms. Allocated memory is still 404.8 MB. Free memory was 349.7 MB in the beginning and 348.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 355.22 ms. Allocated memory is still 404.8 MB. Free memory was 348.4 MB in the beginning and 313.0 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1919.03 ms. Allocated memory was 404.8 MB in the beginning and 629.7 MB in the end (delta: 224.9 MB). Free memory was 311.7 MB in the beginning and 451.9 MB in the end (delta: -140.2 MB). Peak memory consumption was 84.7 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/dll-token_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-19-24-221.csv Received shutdown request...