java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:39:53,642 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:39:53,644 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:39:53,658 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:39:53,659 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:39:53,660 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:39:53,661 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:39:53,662 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:39:53,665 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:39:53,665 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:39:53,666 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:39:53,666 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:39:53,667 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:39:53,668 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:39:53,668 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:39:53,671 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:39:53,673 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:39:53,675 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:39:53,677 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:39:53,678 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:39:53,680 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 12:39:53,681 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 12:39:53,681 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 12:39:53,682 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 12:39:53,683 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 12:39:53,684 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 12:39:53,684 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 12:39:53,685 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 12:39:53,685 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 12:39:53,685 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:39:53,686 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:39:53,686 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf [2018-01-24 12:39:53,696 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:39:53,696 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:39:53,697 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:39:53,697 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:39:53,698 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:39:53,698 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:39:53,698 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:39:53,699 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:39:53,699 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:39:53,699 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:39:53,699 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:39:53,699 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:39:53,700 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:39:53,700 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:39:53,700 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:39:53,700 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:39:53,700 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:39:53,700 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:39:53,701 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:39:53,701 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:39:53,701 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:39:53,701 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:39:53,701 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:39:53,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:39:53,702 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:39:53,702 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:39:53,702 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:39:53,702 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:39:53,703 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 12:39:53,703 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:39:53,703 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:39:53,703 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:39:53,704 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:39:53,704 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:39:53,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:39:53,753 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:39:53,757 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:39:53,758 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:39:53,759 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:39:53,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i [2018-01-24 12:39:53,948 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:39:53,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:39:53,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:39:53,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:39:53,960 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:39:53,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:39:53" (1/1) ... [2018-01-24 12:39:53,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1e8e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:53, skipping insertion in model container [2018-01-24 12:39:53,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:39:53" (1/1) ... [2018-01-24 12:39:53,977 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:39:54,018 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:39:54,143 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:39:54,169 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:39:54,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54 WrapperNode [2018-01-24 12:39:54,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:39:54,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:39:54,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:39:54,206 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:39:54,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (1/1) ... [2018-01-24 12:39:54,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (1/1) ... [2018-01-24 12:39:54,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (1/1) ... [2018-01-24 12:39:54,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (1/1) ... [2018-01-24 12:39:54,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (1/1) ... [2018-01-24 12:39:54,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (1/1) ... [2018-01-24 12:39:54,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (1/1) ... [2018-01-24 12:39:54,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:39:54,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:39:54,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:39:54,241 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:39:54,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:39:54,293 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:39:54,293 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:39:54,293 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:39:54,293 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 12:39:54,293 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 12:39:54,293 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 12:39:54,293 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:39:54,294 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:39:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:39:54,778 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:39:54,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:39:54 BoogieIcfgContainer [2018-01-24 12:39:54,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:39:54,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:39:54,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:39:54,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:39:54,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:39:53" (1/3) ... [2018-01-24 12:39:54,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b796f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:39:54, skipping insertion in model container [2018-01-24 12:39:54,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:39:54" (2/3) ... [2018-01-24 12:39:54,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b796f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:39:54, skipping insertion in model container [2018-01-24 12:39:54,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:39:54" (3/3) ... [2018-01-24 12:39:54,787 INFO L105 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i [2018-01-24 12:39:54,793 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:39:54,800 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 47 error locations. [2018-01-24 12:39:54,840 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:39:54,840 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:39:54,840 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:39:54,840 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:39:54,840 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:39:54,840 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:39:54,840 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:39:54,840 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:39:54,841 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:39:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-01-24 12:39:54,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 12:39:54,867 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:54,868 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:39:54,868 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:54,872 INFO L82 PathProgramCache]: Analyzing trace with hash -2026691577, now seen corresponding path program 1 times [2018-01-24 12:39:54,874 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:54,874 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:54,923 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:54,923 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:54,923 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:54,966 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:55,028 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:55,028 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:39:55,030 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:39:55,044 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:39:55,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:39:55,048 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 4 states. [2018-01-24 12:39:55,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:55,399 INFO L93 Difference]: Finished difference Result 199 states and 248 transitions. [2018-01-24 12:39:55,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:39:55,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 12:39:55,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:55,412 INFO L225 Difference]: With dead ends: 199 [2018-01-24 12:39:55,413 INFO L226 Difference]: Without dead ends: 126 [2018-01-24 12:39:55,416 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:39:55,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-01-24 12:39:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 111. [2018-01-24 12:39:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-01-24 12:39:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 118 transitions. [2018-01-24 12:39:55,454 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 118 transitions. Word has length 8 [2018-01-24 12:39:55,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:55,455 INFO L432 AbstractCegarLoop]: Abstraction has 111 states and 118 transitions. [2018-01-24 12:39:55,455 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:39:55,455 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 118 transitions. [2018-01-24 12:39:55,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 12:39:55,455 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:55,455 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:39:55,455 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:55,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2026691576, now seen corresponding path program 1 times [2018-01-24 12:39:55,456 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:55,456 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:55,458 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:55,458 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:55,458 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:55,473 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:55,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:55,552 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:55,552 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:39:55,554 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:39:55,554 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:39:55,554 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:39:55,555 INFO L87 Difference]: Start difference. First operand 111 states and 118 transitions. Second operand 4 states. [2018-01-24 12:39:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:55,755 INFO L93 Difference]: Finished difference Result 131 states and 137 transitions. [2018-01-24 12:39:55,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:39:55,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 12:39:55,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:55,758 INFO L225 Difference]: With dead ends: 131 [2018-01-24 12:39:55,758 INFO L226 Difference]: Without dead ends: 124 [2018-01-24 12:39:55,759 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:39:55,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-01-24 12:39:55,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2018-01-24 12:39:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-01-24 12:39:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2018-01-24 12:39:55,770 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 123 transitions. Word has length 8 [2018-01-24 12:39:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:55,770 INFO L432 AbstractCegarLoop]: Abstraction has 116 states and 123 transitions. [2018-01-24 12:39:55,770 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:39:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 123 transitions. [2018-01-24 12:39:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 12:39:55,771 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:55,771 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:39:55,771 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:55,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1176954998, now seen corresponding path program 1 times [2018-01-24 12:39:55,772 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:55,772 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:55,773 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:55,773 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:55,773 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:55,794 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:55,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:55,858 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:55,858 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:39:55,858 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:39:55,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:39:55,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:39:55,859 INFO L87 Difference]: Start difference. First operand 116 states and 123 transitions. Second operand 4 states. [2018-01-24 12:39:56,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:56,005 INFO L93 Difference]: Finished difference Result 135 states and 143 transitions. [2018-01-24 12:39:56,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:39:56,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-01-24 12:39:56,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:56,007 INFO L225 Difference]: With dead ends: 135 [2018-01-24 12:39:56,007 INFO L226 Difference]: Without dead ends: 123 [2018-01-24 12:39:56,007 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:39:56,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-01-24 12:39:56,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 108. [2018-01-24 12:39:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-01-24 12:39:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2018-01-24 12:39:56,015 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 15 [2018-01-24 12:39:56,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:56,015 INFO L432 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2018-01-24 12:39:56,015 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:39:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2018-01-24 12:39:56,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 12:39:56,016 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:56,016 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:39:56,016 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:56,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1176954997, now seen corresponding path program 1 times [2018-01-24 12:39:56,016 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:56,016 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:56,017 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:56,018 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:56,018 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:56,036 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:56,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:56,148 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:56,148 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:39:56,148 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:39:56,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:39:56,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:39:56,149 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 7 states. [2018-01-24 12:39:56,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:56,432 INFO L93 Difference]: Finished difference Result 145 states and 155 transitions. [2018-01-24 12:39:56,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:39:56,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-01-24 12:39:56,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:56,434 INFO L225 Difference]: With dead ends: 145 [2018-01-24 12:39:56,434 INFO L226 Difference]: Without dead ends: 139 [2018-01-24 12:39:56,435 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:39:56,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-01-24 12:39:56,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 116. [2018-01-24 12:39:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-01-24 12:39:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2018-01-24 12:39:56,446 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 15 [2018-01-24 12:39:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:56,447 INFO L432 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2018-01-24 12:39:56,447 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:39:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2018-01-24 12:39:56,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:39:56,448 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:56,448 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:39:56,449 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:56,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1446653265, now seen corresponding path program 1 times [2018-01-24 12:39:56,450 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:56,450 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:56,451 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:56,452 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:56,452 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:56,468 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:56,554 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:56,554 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:39:56,554 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:39:56,555 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:39:56,555 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:39:56,555 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand 6 states. [2018-01-24 12:39:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:56,828 INFO L93 Difference]: Finished difference Result 186 states and 203 transitions. [2018-01-24 12:39:56,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:39:56,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-01-24 12:39:56,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:56,830 INFO L225 Difference]: With dead ends: 186 [2018-01-24 12:39:56,830 INFO L226 Difference]: Without dead ends: 185 [2018-01-24 12:39:56,830 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:39:56,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-01-24 12:39:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 115. [2018-01-24 12:39:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-01-24 12:39:56,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2018-01-24 12:39:56,838 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 18 [2018-01-24 12:39:56,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:56,838 INFO L432 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2018-01-24 12:39:56,838 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:39:56,839 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2018-01-24 12:39:56,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:39:56,839 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:56,839 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:39:56,839 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:56,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1446653266, now seen corresponding path program 1 times [2018-01-24 12:39:56,840 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:56,840 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:56,841 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:56,841 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:56,841 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:56,855 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:56,932 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:56,933 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:39:56,933 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:39:56,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:39:56,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:39:56,934 INFO L87 Difference]: Start difference. First operand 115 states and 125 transitions. Second operand 6 states. [2018-01-24 12:39:57,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:57,168 INFO L93 Difference]: Finished difference Result 196 states and 214 transitions. [2018-01-24 12:39:57,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 12:39:57,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-01-24 12:39:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:57,169 INFO L225 Difference]: With dead ends: 196 [2018-01-24 12:39:57,169 INFO L226 Difference]: Without dead ends: 189 [2018-01-24 12:39:57,170 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-01-24 12:39:57,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-01-24 12:39:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 110. [2018-01-24 12:39:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-01-24 12:39:57,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2018-01-24 12:39:57,178 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 18 [2018-01-24 12:39:57,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:57,179 INFO L432 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2018-01-24 12:39:57,179 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:39:57,179 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2018-01-24 12:39:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 12:39:57,180 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:57,180 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] [2018-01-24 12:39:57,180 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:57,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1020537408, now seen corresponding path program 1 times [2018-01-24 12:39:57,181 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:57,181 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:57,182 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:57,182 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:57,183 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:57,199 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:57,253 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:57,253 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:39:57,253 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:39:57,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:39:57,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:39:57,254 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand 6 states. [2018-01-24 12:39:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:57,508 INFO L93 Difference]: Finished difference Result 199 states and 219 transitions. [2018-01-24 12:39:57,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:39:57,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-24 12:39:57,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:57,510 INFO L225 Difference]: With dead ends: 199 [2018-01-24 12:39:57,510 INFO L226 Difference]: Without dead ends: 198 [2018-01-24 12:39:57,510 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:39:57,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-01-24 12:39:57,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 109. [2018-01-24 12:39:57,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-01-24 12:39:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2018-01-24 12:39:57,516 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 26 [2018-01-24 12:39:57,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:57,517 INFO L432 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2018-01-24 12:39:57,517 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:39:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2018-01-24 12:39:57,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 12:39:57,517 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:57,517 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] [2018-01-24 12:39:57,518 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:57,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1020537407, now seen corresponding path program 1 times [2018-01-24 12:39:57,518 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:57,518 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:57,519 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:57,519 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:57,519 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:57,536 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:57,634 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:57,634 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:39:57,634 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:39:57,634 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:39:57,634 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:39:57,635 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand 6 states. [2018-01-24 12:39:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:57,882 INFO L93 Difference]: Finished difference Result 195 states and 214 transitions. [2018-01-24 12:39:57,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:39:57,883 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-24 12:39:57,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:57,884 INFO L225 Difference]: With dead ends: 195 [2018-01-24 12:39:57,884 INFO L226 Difference]: Without dead ends: 191 [2018-01-24 12:39:57,885 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:39:57,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-01-24 12:39:57,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 99. [2018-01-24 12:39:57,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-01-24 12:39:57,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2018-01-24 12:39:57,892 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 26 [2018-01-24 12:39:57,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:57,892 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2018-01-24 12:39:57,892 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:39:57,893 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2018-01-24 12:39:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 12:39:57,894 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:57,894 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] [2018-01-24 12:39:57,894 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:57,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1179857763, now seen corresponding path program 1 times [2018-01-24 12:39:57,894 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:57,894 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:57,896 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:57,896 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:57,896 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:57,905 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:57,947 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:57,947 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:39:57,947 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:39:57,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:39:57,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:39:57,948 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 5 states. [2018-01-24 12:39:58,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:58,093 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2018-01-24 12:39:58,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:39:58,094 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-01-24 12:39:58,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:58,095 INFO L225 Difference]: With dead ends: 150 [2018-01-24 12:39:58,095 INFO L226 Difference]: Without dead ends: 114 [2018-01-24 12:39:58,096 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:39:58,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-01-24 12:39:58,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 99. [2018-01-24 12:39:58,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-01-24 12:39:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 106 transitions. [2018-01-24 12:39:58,102 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 106 transitions. Word has length 27 [2018-01-24 12:39:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:58,102 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 106 transitions. [2018-01-24 12:39:58,102 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:39:58,103 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 106 transitions. [2018-01-24 12:39:58,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-24 12:39:58,104 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:58,104 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] [2018-01-24 12:39:58,104 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:58,104 INFO L82 PathProgramCache]: Analyzing trace with hash -2127198597, now seen corresponding path program 1 times [2018-01-24 12:39:58,104 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:58,104 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:58,106 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:58,106 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:58,106 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:58,116 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:58,209 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:39:58,209 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:39:58,222 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:58,260 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:39:58,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-24 12:39:58,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 12:39:58,348 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,351 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-24 12:39:58,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 12:39:58,371 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,372 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,376 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,376 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:29, output treesize:18 [2018-01-24 12:39:58,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-01-24 12:39:58,393 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:39:58,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-01-24 12:39:58,397 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,401 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-01-24 12:39:58,411 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:39:58,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-01-24 12:39:58,413 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,416 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,424 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:56, output treesize:18 [2018-01-24 12:39:58,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-01-24 12:39:58,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-01-24 12:39:58,453 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,454 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-01-24 12:39:58,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-01-24 12:39:58,482 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,486 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:58,490 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-01-24 12:39:58,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:58,520 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:39:58,520 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 10 [2018-01-24 12:39:58,520 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 12:39:58,521 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 12:39:58,521 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:39:58,521 INFO L87 Difference]: Start difference. First operand 99 states and 106 transitions. Second operand 10 states. [2018-01-24 12:39:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:59,342 INFO L93 Difference]: Finished difference Result 215 states and 232 transitions. [2018-01-24 12:39:59,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 12:39:59,343 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-01-24 12:39:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:59,344 INFO L225 Difference]: With dead ends: 215 [2018-01-24 12:39:59,344 INFO L226 Difference]: Without dead ends: 158 [2018-01-24 12:39:59,345 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2018-01-24 12:39:59,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-01-24 12:39:59,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 118. [2018-01-24 12:39:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-01-24 12:39:59,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 127 transitions. [2018-01-24 12:39:59,353 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 127 transitions. Word has length 30 [2018-01-24 12:39:59,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:59,354 INFO L432 AbstractCegarLoop]: Abstraction has 118 states and 127 transitions. [2018-01-24 12:39:59,354 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 12:39:59,354 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 127 transitions. [2018-01-24 12:39:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 12:39:59,355 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:59,355 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] [2018-01-24 12:39:59,355 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:59,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1759872929, now seen corresponding path program 1 times [2018-01-24 12:39:59,356 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:59,356 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:59,357 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:59,357 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:59,357 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:59,367 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:59,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:59,493 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:39:59,493 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:39:59,493 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:39:59,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:39:59,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:39:59,494 INFO L87 Difference]: Start difference. First operand 118 states and 127 transitions. Second operand 5 states. [2018-01-24 12:39:59,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:39:59,650 INFO L93 Difference]: Finished difference Result 180 states and 193 transitions. [2018-01-24 12:39:59,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:39:59,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-01-24 12:39:59,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:39:59,651 INFO L225 Difference]: With dead ends: 180 [2018-01-24 12:39:59,651 INFO L226 Difference]: Without dead ends: 122 [2018-01-24 12:39:59,652 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:39:59,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-01-24 12:39:59,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 117. [2018-01-24 12:39:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-01-24 12:39:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2018-01-24 12:39:59,659 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 32 [2018-01-24 12:39:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:39:59,659 INFO L432 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2018-01-24 12:39:59,659 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:39:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2018-01-24 12:39:59,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-24 12:39:59,661 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:39:59,661 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:39:59,661 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:39:59,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1741137725, now seen corresponding path program 1 times [2018-01-24 12:39:59,661 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:39:59,662 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:39:59,663 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:59,663 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:59,663 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:39:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:59,673 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:39:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:39:59,811 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:39:59,811 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:39:59,825 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:39:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:39:59,848 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:39:59,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-24 12:39:59,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-24 12:39:59,855 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:39:59,856 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:59,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:59,858 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-01-24 12:39:59,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-01-24 12:39:59,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-01-24 12:39:59,864 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:39:59,874 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:59,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:39:59,875 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-01-24 12:39:59,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 12:39:59,910 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:39:59,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2018-01-24 12:39:59,910 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 12:39:59,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 12:39:59,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:39:59,911 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand 9 states. [2018-01-24 12:40:00,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:40:00,274 INFO L93 Difference]: Finished difference Result 170 states and 180 transitions. [2018-01-24 12:40:00,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 12:40:00,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-01-24 12:40:00,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:40:00,276 INFO L225 Difference]: With dead ends: 170 [2018-01-24 12:40:00,276 INFO L226 Difference]: Without dead ends: 141 [2018-01-24 12:40:00,276 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-01-24 12:40:00,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-01-24 12:40:00,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 114. [2018-01-24 12:40:00,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-01-24 12:40:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 120 transitions. [2018-01-24 12:40:00,285 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 120 transitions. Word has length 37 [2018-01-24 12:40:00,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:40:00,285 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 120 transitions. [2018-01-24 12:40:00,285 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 12:40:00,285 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 120 transitions. [2018-01-24 12:40:00,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-01-24 12:40:00,287 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:40:00,287 INFO L322 BasicCegarLoop]: trace histogram [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] [2018-01-24 12:40:00,287 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-01-24 12:40:00,287 INFO L82 PathProgramCache]: Analyzing trace with hash -305122759, now seen corresponding path program 1 times [2018-01-24 12:40:00,287 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:40:00,288 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:40:00,289 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:40:00,289 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:40:00,289 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:40:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:40:00,299 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:40:00,349 ERROR L119 erpolLogProxyWrapper]: Interpolant 25 not inductive: (Check returned sat) [2018-01-24 12:40:00,358 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:1003) 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:279) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:162) 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:218) 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:368) 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:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) 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) [2018-01-24 12:40:00,363 INFO L168 Benchmark]: Toolchain (without parser) took 6414.25 ms. Allocated memory was 303.0 MB in the beginning and 515.4 MB in the end (delta: 212.3 MB). Free memory was 263.1 MB in the beginning and 322.7 MB in the end (delta: -59.6 MB). Peak memory consumption was 152.8 MB. Max. memory is 5.3 GB. [2018-01-24 12:40:00,365 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 303.0 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:40:00,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.53 ms. Allocated memory is still 303.0 MB. Free memory was 262.1 MB in the beginning and 250.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-24 12:40:00,365 INFO L168 Benchmark]: Boogie Preprocessor took 34.50 ms. Allocated memory is still 303.0 MB. Free memory was 250.0 MB in the beginning and 248.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:40:00,366 INFO L168 Benchmark]: RCFGBuilder took 538.17 ms. Allocated memory is still 303.0 MB. Free memory was 248.0 MB in the beginning and 217.4 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 5.3 GB. [2018-01-24 12:40:00,366 INFO L168 Benchmark]: TraceAbstraction took 5581.83 ms. Allocated memory was 303.0 MB in the beginning and 515.4 MB in the end (delta: 212.3 MB). Free memory was 217.4 MB in the beginning and 322.7 MB in the end (delta: -105.2 MB). Peak memory consumption was 107.1 MB. Max. memory is 5.3 GB. [2018-01-24 12:40:00,368 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 303.0 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 251.53 ms. Allocated memory is still 303.0 MB. Free memory was 262.1 MB in the beginning and 250.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.50 ms. Allocated memory is still 303.0 MB. Free memory was 250.0 MB in the beginning and 248.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 538.17 ms. Allocated memory is still 303.0 MB. Free memory was 248.0 MB in the beginning and 217.4 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5581.83 ms. Allocated memory was 303.0 MB in the beginning and 515.4 MB in the end (delta: 212.3 MB). Free memory was 217.4 MB in the beginning and 322.7 MB in the end (delta: -105.2 MB). Peak memory consumption was 107.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:1003) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-40-00-377.csv Received shutdown request...