java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/memsafety/test-0521_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:10:02,786 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:10:02,788 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:10:02,800 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:10:02,801 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:10:02,801 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:10:02,802 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:10:02,804 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:10:02,805 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:10:02,806 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:10:02,807 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:10:02,807 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:10:02,808 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:10:02,809 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:10:02,809 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:10:02,811 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:10:02,813 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:10:02,814 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:10:02,815 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:10:02,816 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:10:02,818 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:10:02,818 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:10:02,818 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:10:02,819 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:10:02,819 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:10:02,820 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:10:02,821 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:10:02,821 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:10:02,821 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:10:02,821 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:10:02,822 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:10:02,822 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:10:02,832 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:10:02,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:10:02,833 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:10:02,833 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:10:02,833 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:10:02,834 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:10:02,834 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:10:02,834 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:10:02,834 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:10:02,834 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:10:02,834 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:10:02,835 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:10:02,835 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:10:02,835 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:10:02,835 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:10:02,835 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:10:02,835 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:10:02,836 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:10:02,836 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:10:02,836 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:10:02,836 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:10:02,836 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:10:02,836 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:10:02,836 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:10:02,837 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:10:02,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:10:02,876 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:10:02,879 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:10:02,880 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:10:02,880 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:10:02,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0521_true-valid-memsafety.i [2018-02-04 04:10:03,021 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:10:03,022 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:10:03,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:10:03,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:10:03,028 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:10:03,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31db4c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03, skipping insertion in model container [2018-02-04 04:10:03,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,045 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:10:03,074 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:10:03,173 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:10:03,196 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:10:03,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03 WrapperNode [2018-02-04 04:10:03,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:10:03,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:10:03,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:10:03,206 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:10:03,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (1/1) ... [2018-02-04 04:10:03,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:10:03,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:10:03,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:10:03,238 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:10:03,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:10:03,274 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:10:03,275 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:10:03,275 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 04:10:03,275 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:10:03,276 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:10:03,276 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:10:03,276 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:10:03,784 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:10:03,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:10:03 BoogieIcfgContainer [2018-02-04 04:10:03,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:10:03,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:10:03,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:10:03,789 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:10:03,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:10:03" (1/3) ... [2018-02-04 04:10:03,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18afd152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:10:03, skipping insertion in model container [2018-02-04 04:10:03,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:10:03" (2/3) ... [2018-02-04 04:10:03,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18afd152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:10:03, skipping insertion in model container [2018-02-04 04:10:03,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:10:03" (3/3) ... [2018-02-04 04:10:03,792 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0521_true-valid-memsafety.i [2018-02-04 04:10:03,800 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:10:03,806 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 91 error locations. [2018-02-04 04:10:03,841 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:10:03,841 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:10:03,842 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:10:03,842 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:10:03,842 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:10:03,842 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:10:03,842 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:10:03,842 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:10:03,845 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:10:03,865 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states. [2018-02-04 04:10:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-04 04:10:03,875 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:03,876 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:03,876 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:03,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2006593009, now seen corresponding path program 1 times [2018-02-04 04:10:03,885 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:03,885 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:03,931 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:03,932 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:03,932 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:03,970 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:03,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:03,998 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:03,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:10:03,999 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-04 04:10:04,007 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-04 04:10:04,007 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 04:10:04,009 INFO L87 Difference]: Start difference. First operand 247 states. Second operand 2 states. [2018-02-04 04:10:04,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:04,082 INFO L93 Difference]: Finished difference Result 247 states and 274 transitions. [2018-02-04 04:10:04,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-04 04:10:04,083 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-02-04 04:10:04,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:04,092 INFO L225 Difference]: With dead ends: 247 [2018-02-04 04:10:04,092 INFO L226 Difference]: Without dead ends: 244 [2018-02-04 04:10:04,094 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 04:10:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-02-04 04:10:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2018-02-04 04:10:04,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-02-04 04:10:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 271 transitions. [2018-02-04 04:10:04,121 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 271 transitions. Word has length 10 [2018-02-04 04:10:04,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:04,121 INFO L432 AbstractCegarLoop]: Abstraction has 244 states and 271 transitions. [2018-02-04 04:10:04,121 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-04 04:10:04,121 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 271 transitions. [2018-02-04 04:10:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-04 04:10:04,122 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:04,122 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:04,122 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:04,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1287736010, now seen corresponding path program 1 times [2018-02-04 04:10:04,123 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:04,123 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:04,124 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,124 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:04,124 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:04,134 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:04,180 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:04,180 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:10:04,181 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:04,181 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:04,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:04,181 INFO L87 Difference]: Start difference. First operand 244 states and 271 transitions. Second operand 4 states. [2018-02-04 04:10:04,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:04,285 INFO L93 Difference]: Finished difference Result 561 states and 618 transitions. [2018-02-04 04:10:04,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:10:04,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-02-04 04:10:04,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:04,289 INFO L225 Difference]: With dead ends: 561 [2018-02-04 04:10:04,289 INFO L226 Difference]: Without dead ends: 561 [2018-02-04 04:10:04,290 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:04,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2018-02-04 04:10:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 256. [2018-02-04 04:10:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-02-04 04:10:04,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 285 transitions. [2018-02-04 04:10:04,304 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 285 transitions. Word has length 12 [2018-02-04 04:10:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:04,304 INFO L432 AbstractCegarLoop]: Abstraction has 256 states and 285 transitions. [2018-02-04 04:10:04,304 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 285 transitions. [2018-02-04 04:10:04,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:10:04,305 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:04,305 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:04,305 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:04,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1264312096, now seen corresponding path program 1 times [2018-02-04 04:10:04,305 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:04,306 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:04,306 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,307 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:04,307 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:04,315 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:04,351 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:04,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:04,352 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:04,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:04,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:04,352 INFO L87 Difference]: Start difference. First operand 256 states and 285 transitions. Second operand 4 states. [2018-02-04 04:10:04,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:04,607 INFO L93 Difference]: Finished difference Result 416 states and 464 transitions. [2018-02-04 04:10:04,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:10:04,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-02-04 04:10:04,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:04,609 INFO L225 Difference]: With dead ends: 416 [2018-02-04 04:10:04,610 INFO L226 Difference]: Without dead ends: 416 [2018-02-04 04:10:04,610 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2018-02-04 04:10:04,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 254. [2018-02-04 04:10:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-02-04 04:10:04,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 283 transitions. [2018-02-04 04:10:04,621 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 283 transitions. Word has length 13 [2018-02-04 04:10:04,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:04,622 INFO L432 AbstractCegarLoop]: Abstraction has 254 states and 283 transitions. [2018-02-04 04:10:04,622 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 283 transitions. [2018-02-04 04:10:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:10:04,627 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:04,627 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:04,627 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:04,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1264312095, now seen corresponding path program 1 times [2018-02-04 04:10:04,628 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:04,628 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:04,634 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,634 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:04,634 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:04,651 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:04,703 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:04,703 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:04,703 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:04,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:04,703 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:04,704 INFO L87 Difference]: Start difference. First operand 254 states and 283 transitions. Second operand 4 states. [2018-02-04 04:10:04,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:04,851 INFO L93 Difference]: Finished difference Result 349 states and 392 transitions. [2018-02-04 04:10:04,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:10:04,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-02-04 04:10:04,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:04,853 INFO L225 Difference]: With dead ends: 349 [2018-02-04 04:10:04,853 INFO L226 Difference]: Without dead ends: 349 [2018-02-04 04:10:04,853 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:04,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-02-04 04:10:04,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 252. [2018-02-04 04:10:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-02-04 04:10:04,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 281 transitions. [2018-02-04 04:10:04,860 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 281 transitions. Word has length 13 [2018-02-04 04:10:04,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:04,860 INFO L432 AbstractCegarLoop]: Abstraction has 252 states and 281 transitions. [2018-02-04 04:10:04,860 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:04,861 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 281 transitions. [2018-02-04 04:10:04,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:10:04,861 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:04,861 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:04,861 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:04,862 INFO L82 PathProgramCache]: Analyzing trace with hash 184691868, now seen corresponding path program 1 times [2018-02-04 04:10:04,862 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:04,862 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:04,863 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,863 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:04,863 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:04,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:04,904 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:04,904 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:10:04,904 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:10:04,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:10:04,904 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:04,904 INFO L87 Difference]: Start difference. First operand 252 states and 281 transitions. Second operand 5 states. [2018-02-04 04:10:04,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:04,970 INFO L93 Difference]: Finished difference Result 327 states and 364 transitions. [2018-02-04 04:10:04,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:10:04,971 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-02-04 04:10:04,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:04,972 INFO L225 Difference]: With dead ends: 327 [2018-02-04 04:10:04,972 INFO L226 Difference]: Without dead ends: 327 [2018-02-04 04:10:04,973 INFO L554 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 [2018-02-04 04:10:04,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-02-04 04:10:04,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 292. [2018-02-04 04:10:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2018-02-04 04:10:04,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 344 transitions. [2018-02-04 04:10:04,980 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 344 transitions. Word has length 20 [2018-02-04 04:10:04,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:04,980 INFO L432 AbstractCegarLoop]: Abstraction has 292 states and 344 transitions. [2018-02-04 04:10:04,980 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:10:04,981 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 344 transitions. [2018-02-04 04:10:04,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:10:04,981 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:04,981 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:04,981 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:04,982 INFO L82 PathProgramCache]: Analyzing trace with hash 415972895, now seen corresponding path program 1 times [2018-02-04 04:10:04,982 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:04,982 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:04,983 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,983 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:04,983 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:04,993 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:05,029 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:05,029 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:05,029 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:05,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:05,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:05,030 INFO L87 Difference]: Start difference. First operand 292 states and 344 transitions. Second operand 4 states. [2018-02-04 04:10:05,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:05,198 INFO L93 Difference]: Finished difference Result 454 states and 524 transitions. [2018-02-04 04:10:05,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:10:05,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-02-04 04:10:05,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:05,199 INFO L225 Difference]: With dead ends: 454 [2018-02-04 04:10:05,200 INFO L226 Difference]: Without dead ends: 454 [2018-02-04 04:10:05,200 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2018-02-04 04:10:05,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 290. [2018-02-04 04:10:05,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-02-04 04:10:05,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 342 transitions. [2018-02-04 04:10:05,206 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 342 transitions. Word has length 20 [2018-02-04 04:10:05,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:05,206 INFO L432 AbstractCegarLoop]: Abstraction has 290 states and 342 transitions. [2018-02-04 04:10:05,206 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:05,206 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 342 transitions. [2018-02-04 04:10:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:10:05,207 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:05,207 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:05,207 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:05,207 INFO L82 PathProgramCache]: Analyzing trace with hash 415972896, now seen corresponding path program 1 times [2018-02-04 04:10:05,207 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:05,208 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:05,208 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:05,208 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:05,209 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:05,219 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:05,257 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:05,257 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:10:05,257 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:10:05,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:10:05,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:10:05,258 INFO L87 Difference]: Start difference. First operand 290 states and 342 transitions. Second operand 4 states. [2018-02-04 04:10:05,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:05,386 INFO L93 Difference]: Finished difference Result 387 states and 452 transitions. [2018-02-04 04:10:05,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:10:05,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-02-04 04:10:05,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:05,388 INFO L225 Difference]: With dead ends: 387 [2018-02-04 04:10:05,388 INFO L226 Difference]: Without dead ends: 387 [2018-02-04 04:10:05,389 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:05,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-02-04 04:10:05,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 288. [2018-02-04 04:10:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2018-02-04 04:10:05,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 340 transitions. [2018-02-04 04:10:05,395 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 340 transitions. Word has length 20 [2018-02-04 04:10:05,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:05,395 INFO L432 AbstractCegarLoop]: Abstraction has 288 states and 340 transitions. [2018-02-04 04:10:05,396 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:10:05,396 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 340 transitions. [2018-02-04 04:10:05,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 04:10:05,396 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:05,396 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:05,397 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:05,397 INFO L82 PathProgramCache]: Analyzing trace with hash 308407885, now seen corresponding path program 1 times [2018-02-04 04:10:05,397 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:05,397 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:05,398 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:05,398 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:05,398 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:05,404 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:05,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:05,447 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:05,447 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:10:05,447 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:10:05,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:10:05,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:05,448 INFO L87 Difference]: Start difference. First operand 288 states and 340 transitions. Second operand 5 states. [2018-02-04 04:10:05,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:05,532 INFO L93 Difference]: Finished difference Result 319 states and 351 transitions. [2018-02-04 04:10:05,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:10:05,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-02-04 04:10:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:05,534 INFO L225 Difference]: With dead ends: 319 [2018-02-04 04:10:05,534 INFO L226 Difference]: Without dead ends: 319 [2018-02-04 04:10:05,534 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:10:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-02-04 04:10:05,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 275. [2018-02-04 04:10:05,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-02-04 04:10:05,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 307 transitions. [2018-02-04 04:10:05,541 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 307 transitions. Word has length 23 [2018-02-04 04:10:05,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:05,542 INFO L432 AbstractCegarLoop]: Abstraction has 275 states and 307 transitions. [2018-02-04 04:10:05,542 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:10:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 307 transitions. [2018-02-04 04:10:05,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 04:10:05,543 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:05,543 INFO L351 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] [2018-02-04 04:10:05,543 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:05,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1728935830, now seen corresponding path program 1 times [2018-02-04 04:10:05,543 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:05,543 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:05,544 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:05,544 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:05,544 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:05,554 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:05,582 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:05,582 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:10:05,583 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:10:05,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:10:05,583 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:10:05,583 INFO L87 Difference]: Start difference. First operand 275 states and 307 transitions. Second operand 5 states. [2018-02-04 04:10:05,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:05,829 INFO L93 Difference]: Finished difference Result 457 states and 509 transitions. [2018-02-04 04:10:05,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:10:05,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2018-02-04 04:10:05,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:05,831 INFO L225 Difference]: With dead ends: 457 [2018-02-04 04:10:05,832 INFO L226 Difference]: Without dead ends: 457 [2018-02-04 04:10:05,832 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:10:05,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-02-04 04:10:05,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 276. [2018-02-04 04:10:05,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2018-02-04 04:10:05,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 310 transitions. [2018-02-04 04:10:05,838 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 310 transitions. Word has length 28 [2018-02-04 04:10:05,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:05,839 INFO L432 AbstractCegarLoop]: Abstraction has 276 states and 310 transitions. [2018-02-04 04:10:05,839 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:10:05,839 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 310 transitions. [2018-02-04 04:10:05,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 04:10:05,840 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:05,840 INFO L351 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] [2018-02-04 04:10:05,841 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:05,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1728935829, now seen corresponding path program 1 times [2018-02-04 04:10:05,842 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:05,842 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:05,842 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:05,842 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:05,842 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:05,853 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:05,914 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:05,914 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:10:05,914 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:10:05,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:10:05,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:10:05,915 INFO L87 Difference]: Start difference. First operand 276 states and 310 transitions. Second operand 6 states. [2018-02-04 04:10:06,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:06,190 INFO L93 Difference]: Finished difference Result 387 states and 437 transitions. [2018-02-04 04:10:06,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:10:06,190 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-02-04 04:10:06,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:06,191 INFO L225 Difference]: With dead ends: 387 [2018-02-04 04:10:06,191 INFO L226 Difference]: Without dead ends: 387 [2018-02-04 04:10:06,192 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:10:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-02-04 04:10:06,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 275. [2018-02-04 04:10:06,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-02-04 04:10:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 309 transitions. [2018-02-04 04:10:06,196 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 309 transitions. Word has length 28 [2018-02-04 04:10:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:06,196 INFO L432 AbstractCegarLoop]: Abstraction has 275 states and 309 transitions. [2018-02-04 04:10:06,196 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:10:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 309 transitions. [2018-02-04 04:10:06,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-02-04 04:10:06,197 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:06,197 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:06,197 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:06,197 INFO L82 PathProgramCache]: Analyzing trace with hash -887445228, now seen corresponding path program 1 times [2018-02-04 04:10:06,197 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:06,197 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:06,198 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:06,198 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:06,198 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:06,203 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:10:06,219 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:10:06,219 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:10:06,219 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:10:06,219 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:10:06,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:10:06,219 INFO L87 Difference]: Start difference. First operand 275 states and 309 transitions. Second operand 3 states. [2018-02-04 04:10:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:10:06,310 INFO L93 Difference]: Finished difference Result 278 states and 311 transitions. [2018-02-04 04:10:06,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:10:06,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-02-04 04:10:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:10:06,316 INFO L225 Difference]: With dead ends: 278 [2018-02-04 04:10:06,316 INFO L226 Difference]: Without dead ends: 255 [2018-02-04 04:10:06,316 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:10:06,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-02-04 04:10:06,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 254. [2018-02-04 04:10:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-02-04 04:10:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 285 transitions. [2018-02-04 04:10:06,320 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 285 transitions. Word has length 30 [2018-02-04 04:10:06,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:10:06,320 INFO L432 AbstractCegarLoop]: Abstraction has 254 states and 285 transitions. [2018-02-04 04:10:06,320 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:10:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 285 transitions. [2018-02-04 04:10:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-02-04 04:10:06,321 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:10:06,321 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:10:06,321 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr85RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr76RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr83RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr87RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr81RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr90EnsuresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr88RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:10:06,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1380917583, now seen corresponding path program 1 times [2018-02-04 04:10:06,321 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:10:06,321 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:10:06,322 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:06,322 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:10:06,322 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:10:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:10:06,337 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:10:06,343 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:10:06,347 INFO L168 Benchmark]: Toolchain (without parser) took 3325.44 ms. Allocated memory was 403.7 MB in the beginning and 664.3 MB in the end (delta: 260.6 MB). Free memory was 360.6 MB in the beginning and 520.6 MB in the end (delta: -160.0 MB). Peak memory consumption was 100.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:06,347 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 403.7 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:10:06,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.93 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 348.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:06,348 INFO L168 Benchmark]: Boogie Preprocessor took 32.24 ms. Allocated memory is still 403.7 MB. Free memory was 348.5 MB in the beginning and 345.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:06,348 INFO L168 Benchmark]: RCFGBuilder took 546.86 ms. Allocated memory is still 403.7 MB. Free memory was 345.8 MB in the beginning and 283.5 MB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:06,348 INFO L168 Benchmark]: TraceAbstraction took 2560.31 ms. Allocated memory was 403.7 MB in the beginning and 664.3 MB in the end (delta: 260.6 MB). Free memory was 283.5 MB in the beginning and 520.6 MB in the end (delta: -237.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:10:06,349 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 403.7 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 182.93 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 348.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.24 ms. Allocated memory is still 403.7 MB. Free memory was 348.5 MB in the beginning and 345.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. * RCFGBuilder took 546.86 ms. Allocated memory is still 403.7 MB. Free memory was 345.8 MB in the beginning and 283.5 MB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2560.31 ms. Allocated memory was 403.7 MB in the beginning and 664.3 MB in the end (delta: 260.6 MB). Free memory was 283.5 MB in the beginning and 520.6 MB in the end (delta: -237.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0521_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-10-06-354.csv Received shutdown request...