java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-sorted_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 00:09:35,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:09:35,429 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:09:35,447 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:09:35,447 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:09:35,448 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:09:35,449 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:09:35,451 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:09:35,454 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:09:35,455 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:09:35,456 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 00:09:35,456 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 00:09:35,457 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 00:09:35,459 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 00:09:35,460 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 00:09:35,462 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 00:09:35,465 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 00:09:35,467 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 00:09:35,468 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 00:09:35,470 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 00:09:35,472 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 00:09:35,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 00:09:35,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 00:09:35,479 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ.epf [2018-01-21 00:09:35,490 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:09:35,491 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:09:35,492 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:09:35,492 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:09:35,492 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:09:35,492 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:09:35,493 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:09:35,493 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:09:35,494 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:09:35,494 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:09:35,494 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:09:35,494 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:09:35,494 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:09:35,495 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:09:35,495 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:09:35,495 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:09:35,495 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:09:35,495 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:09:35,496 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:09:35,496 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:09:35,496 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:09:35,496 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:09:35,496 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:09:35,497 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:09:35,497 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:09:35,497 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:09:35,497 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:09:35,497 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:09:35,498 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:09:35,498 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:09:35,498 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:09:35,498 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 00:09:35,498 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:09:35,498 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:09:35,499 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:09:35,499 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 00:09:35,500 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:09:35,500 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:09:35,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:09:35,551 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:09:35,555 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:09:35,557 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:09:35,558 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:09:35,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-sorted_true-unreach-call_true-valid-memsafety.i [2018-01-21 00:09:35,740 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:09:35,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:09:35,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:09:35,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:09:35,751 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:09:35,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:35,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a8f862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35, skipping insertion in model container [2018-01-21 00:09:35,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:35,768 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:09:35,809 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:09:35,946 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:09:35,975 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:09:35,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35 WrapperNode [2018-01-21 00:09:35,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:09:35,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:09:35,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:09:35,984 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:09:35,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:35,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:36,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:36,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:36,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:36,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:36,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (1/1) ... [2018-01-21 00:09:36,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:09:36,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:09:36,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:09:36,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:09:36,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:09:36,081 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:09:36,082 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:09:36,082 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:09:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 00:09:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 00:09:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:09:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:09:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:09:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:09:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 00:09:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 00:09:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 00:09:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 00:09:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-21 00:09:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:09:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:09:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:09:36,559 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:09:36,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:09:36 BoogieIcfgContainer [2018-01-21 00:09:36,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:09:36,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 00:09:36,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 00:09:36,563 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 00:09:36,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:09:35" (1/3) ... [2018-01-21 00:09:36,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7ce6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:09:36, skipping insertion in model container [2018-01-21 00:09:36,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:09:35" (2/3) ... [2018-01-21 00:09:36,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7ce6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:09:36, skipping insertion in model container [2018-01-21 00:09:36,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:09:36" (3/3) ... [2018-01-21 00:09:36,567 INFO L105 eAbstractionObserver]: Analyzing ICFG dll-sorted_true-unreach-call_true-valid-memsafety.i [2018-01-21 00:09:36,573 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 00:09:36,580 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-21 00:09:36,619 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:09:36,619 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:09:36,619 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:09:36,619 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:09:36,619 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:09:36,619 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:09:36,619 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:09:36,619 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 00:09:36,620 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:09:36,638 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-01-21 00:09:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 00:09:36,643 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:09:36,643 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 00:09:36,644 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 00:09:36,647 INFO L82 PathProgramCache]: Analyzing trace with hash 319525, now seen corresponding path program 1 times [2018-01-21 00:09:36,649 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:09:36,688 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:36,688 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:09:36,689 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:36,689 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:09:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:09:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:09:36,738 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:09:36,745 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:09:36,752 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:09:36,753 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:09:36,753 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:09:36,753 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:09:36,753 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:09:36,753 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:09:36,754 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:09:36,754 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 00:09:36,754 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:09:36,758 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-01-21 00:09:36,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-21 00:09:36,762 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:09:36,762 INFO L322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:09:36,762 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:09:36,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1191137443, now seen corresponding path program 1 times [2018-01-21 00:09:36,763 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:09:36,763 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:36,764 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:09:36,764 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:36,764 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:09:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:09:36,801 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:09:36,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:09:36,929 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:09:36,929 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 00:09:36,930 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:09:36,932 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 00:09:36,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 00:09:36,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:09:36,951 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2018-01-21 00:09:36,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:09:36,979 INFO L93 Difference]: Finished difference Result 198 states and 264 transitions. [2018-01-21 00:09:36,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 00:09:36,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 34 [2018-01-21 00:09:36,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:09:36,993 INFO L225 Difference]: With dead ends: 198 [2018-01-21 00:09:36,994 INFO L226 Difference]: Without dead ends: 110 [2018-01-21 00:09:36,997 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 00:09:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-01-21 00:09:37,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-01-21 00:09:37,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-01-21 00:09:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2018-01-21 00:09:37,038 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 34 [2018-01-21 00:09:37,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:09:37,039 INFO L432 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2018-01-21 00:09:37,039 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 00:09:37,039 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2018-01-21 00:09:37,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-01-21 00:09:37,041 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:09:37,041 INFO L322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:09:37,042 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:09:37,042 INFO L82 PathProgramCache]: Analyzing trace with hash -833133189, now seen corresponding path program 1 times [2018-01-21 00:09:37,042 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:09:37,043 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:37,043 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:09:37,043 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:37,043 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:09:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:09:37,071 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:09:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:09:37,132 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:09:37,132 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 00:09:37,132 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:09:37,134 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 00:09:37,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 00:09:37,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 00:09:37,135 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 3 states. [2018-01-21 00:09:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:09:37,190 INFO L93 Difference]: Finished difference Result 236 states and 263 transitions. [2018-01-21 00:09:37,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 00:09:37,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-01-21 00:09:37,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:09:37,194 INFO L225 Difference]: With dead ends: 236 [2018-01-21 00:09:37,194 INFO L226 Difference]: Without dead ends: 137 [2018-01-21 00:09:37,195 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 00:09:37,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-01-21 00:09:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 124. [2018-01-21 00:09:37,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-01-21 00:09:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 136 transitions. [2018-01-21 00:09:37,203 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 136 transitions. Word has length 51 [2018-01-21 00:09:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:09:37,204 INFO L432 AbstractCegarLoop]: Abstraction has 124 states and 136 transitions. [2018-01-21 00:09:37,204 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 00:09:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 136 transitions. [2018-01-21 00:09:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-01-21 00:09:37,205 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:09:37,206 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:09:37,206 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:09:37,206 INFO L82 PathProgramCache]: Analyzing trace with hash -487006783, now seen corresponding path program 1 times [2018-01-21 00:09:37,206 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:09:37,207 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:37,207 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:09:37,207 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:37,208 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:09:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:09:37,248 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:09:37,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-01-21 00:09:37,403 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:09:37,403 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-21 00:09:37,404 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:09:37,404 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-21 00:09:37,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-21 00:09:37,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-21 00:09:37,405 INFO L87 Difference]: Start difference. First operand 124 states and 136 transitions. Second operand 6 states. [2018-01-21 00:09:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:09:37,671 INFO L93 Difference]: Finished difference Result 248 states and 273 transitions. [2018-01-21 00:09:37,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-21 00:09:37,672 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-01-21 00:09:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:09:37,675 INFO L225 Difference]: With dead ends: 248 [2018-01-21 00:09:37,675 INFO L226 Difference]: Without dead ends: 207 [2018-01-21 00:09:37,677 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-01-21 00:09:37,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-01-21 00:09:37,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 134. [2018-01-21 00:09:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-01-21 00:09:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2018-01-21 00:09:37,691 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 66 [2018-01-21 00:09:37,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:09:37,691 INFO L432 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2018-01-21 00:09:37,691 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-21 00:09:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2018-01-21 00:09:37,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-01-21 00:09:37,694 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:09:37,694 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:09:37,695 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:09:37,695 INFO L82 PathProgramCache]: Analyzing trace with hash 548520625, now seen corresponding path program 1 times [2018-01-21 00:09:37,695 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:09:37,696 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:37,696 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:09:37,696 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:37,697 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:09:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:09:37,726 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:09:37,902 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-01-21 00:09:37,902 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:09:37,902 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-21 00:09:37,902 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:09:37,903 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-21 00:09:37,903 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-21 00:09:37,903 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-21 00:09:37,904 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand 7 states. [2018-01-21 00:09:38,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:09:38,127 INFO L93 Difference]: Finished difference Result 229 states and 253 transitions. [2018-01-21 00:09:38,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-21 00:09:38,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2018-01-21 00:09:38,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:09:38,129 INFO L225 Difference]: With dead ends: 229 [2018-01-21 00:09:38,130 INFO L226 Difference]: Without dead ends: 151 [2018-01-21 00:09:38,130 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-01-21 00:09:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-01-21 00:09:38,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2018-01-21 00:09:38,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-01-21 00:09:38,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2018-01-21 00:09:38,140 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 86 [2018-01-21 00:09:38,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:09:38,141 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2018-01-21 00:09:38,141 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-21 00:09:38,141 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2018-01-21 00:09:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-01-21 00:09:38,143 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:09:38,144 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:09:38,144 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:09:38,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1500867217, now seen corresponding path program 1 times [2018-01-21 00:09:38,144 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:09:38,145 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:38,145 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:09:38,145 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:09:38,145 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:09:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:09:38,173 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:09:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-01-21 00:09:38,334 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:09:38,334 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:09:38,335 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 87 with the following transitions: [2018-01-21 00:09:38,337 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [4], [5], [9], [11], [14], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [28], [34], [35], [43], [47], [52], [56], [62], [66], [68], [69], [77], [81], [91], [93], [94], [99], [103], [130], [131], [132], [133], [134], [135], [138], [139], [150], [154], [156], [159], [160], [161], [167], [215], [219], [221], [222], [223], [227], [228], [233], [237], [245], [250], [254], [260], [261], [265], [269], [273], [275], [276], [277], [278], [282], [283], [285], [286], [291], [292], [293], [294], [295] [2018-01-21 00:09:38,385 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:09:38,386 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown