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_z3.epf -i ../../../trunk/examples/svcomp/list-ext-properties/test-0513_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:39:35,008 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:39:35,009 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:39:35,020 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:39:35,021 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:39:35,022 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:39:35,023 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:39:35,024 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:39:35,025 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:39:35,026 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:39:35,027 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:39:35,027 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:39:35,028 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:39:35,029 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:39:35,030 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:39:35,032 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:39:35,034 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:39:35,035 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:39:35,036 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:39:35,037 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:39:35,039 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 20:39:35,040 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 20:39:35,040 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 20:39:35,041 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 20:39:35,042 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 20:39:35,042 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 20:39:35,043 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 20:39:35,043 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 20:39:35,044 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 20:39:35,044 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:39:35,044 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:39:35,045 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 20:39:35,055 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:39:35,055 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:39:35,056 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:39:35,056 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:39:35,056 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:39:35,057 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:39:35,057 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:39:35,057 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:39:35,057 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:39:35,057 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:39:35,058 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:39:35,058 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:39:35,058 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:39:35,058 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:39:35,058 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:39:35,058 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:39:35,058 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:39:35,059 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:39:35,059 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:39:35,059 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:39:35,059 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:39:35,059 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:39:35,059 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:39:35,059 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:35,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:39:35,101 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:39:35,103 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:39:35,104 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:39:35,104 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:39:35,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0513_1_true-valid-memsafety.i [2018-02-04 20:39:35,237 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:39:35,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:39:35,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:39:35,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:39:35,242 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:39:35,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca510de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35, skipping insertion in model container [2018-02-04 20:39:35,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,253 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:39:35,279 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:39:35,367 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:39:35,386 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:39:35,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35 WrapperNode [2018-02-04 20:39:35,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:39:35,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:39:35,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:39:35,395 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:39:35,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (1/1) ... [2018-02-04 20:39:35,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:39:35,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:39:35,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:39:35,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:39:35,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (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 20:39:35,463 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:39:35,463 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:39:35,463 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:39:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 20:39:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 20:39:35,463 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:39:35,464 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:39:35,864 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:39:35,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:39:35 BoogieIcfgContainer [2018-02-04 20:39:35,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:39:35,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:39:35,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:39:35,868 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:39:35,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:39:35" (1/3) ... [2018-02-04 20:39:35,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c7836c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:39:35, skipping insertion in model container [2018-02-04 20:39:35,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:35" (2/3) ... [2018-02-04 20:39:35,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c7836c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:39:35, skipping insertion in model container [2018-02-04 20:39:35,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:39:35" (3/3) ... [2018-02-04 20:39:35,870 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0513_1_true-valid-memsafety.i [2018-02-04 20:39:35,875 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:39:35,880 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2018-02-04 20:39:35,903 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:39:35,903 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:39:35,903 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:39:35,904 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:39:35,904 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:39:35,904 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:39:35,904 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:39:35,904 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:39:35,905 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:39:35,915 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2018-02-04 20:39:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 20:39:35,922 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:35,923 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:35,923 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:35,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1366809009, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:35,934 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:35,977 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 20:39:35,996 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:35,996 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 20:39:35,997 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:35,997 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 20:39:35,997 INFO L182 omatonBuilderFactory]: Interpolants [163#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 158#true, 159#false] [2018-02-04 20:39:35,997 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 20:39:35,998 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 20:39:36,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 20:39:36,006 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 20:39:36,007 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 3 states. [2018-02-04 20:39:36,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:36,321 INFO L93 Difference]: Finished difference Result 199 states and 217 transitions. [2018-02-04 20:39:36,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 20:39:36,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-02-04 20:39:36,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:36,331 INFO L225 Difference]: With dead ends: 199 [2018-02-04 20:39:36,332 INFO L226 Difference]: Without dead ends: 195 [2018-02-04 20:39:36,333 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 20:39:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-02-04 20:39:36,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 157. [2018-02-04 20:39:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-04 20:39:36,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2018-02-04 20:39:36,419 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 9 [2018-02-04 20:39:36,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:36,419 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2018-02-04 20:39:36,419 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 20:39:36,419 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2018-02-04 20:39:36,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 20:39:36,420 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:36,420 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:36,420 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:36,420 INFO L82 PathProgramCache]: Analyzing trace with hash -817163438, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:36,423 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:36,453 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 20:39:36,482 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:36,482 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:39:36,482 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:36,483 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 20:39:36,483 INFO L182 omatonBuilderFactory]: Interpolants [520#true, 521#false, 525#(and (= main_~data~0.offset 0) (= main_~data~0.base 0)), 526#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:39:36,483 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 20:39:36,484 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 20:39:36,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 20:39:36,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 20:39:36,485 INFO L87 Difference]: Start difference. First operand 157 states and 173 transitions. Second operand 4 states. [2018-02-04 20:39:36,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:36,716 INFO L93 Difference]: Finished difference Result 180 states and 197 transitions. [2018-02-04 20:39:36,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:39:36,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-02-04 20:39:36,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:36,718 INFO L225 Difference]: With dead ends: 180 [2018-02-04 20:39:36,718 INFO L226 Difference]: Without dead ends: 179 [2018-02-04 20:39:36,718 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 20:39:36,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-02-04 20:39:36,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 169. [2018-02-04 20:39:36,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-02-04 20:39:36,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 195 transitions. [2018-02-04 20:39:36,725 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 195 transitions. Word has length 13 [2018-02-04 20:39:36,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:36,725 INFO L432 AbstractCegarLoop]: Abstraction has 169 states and 195 transitions. [2018-02-04 20:39:36,725 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 20:39:36,725 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 195 transitions. [2018-02-04 20:39:36,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 20:39:36,725 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:36,725 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:36,725 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:36,726 INFO L82 PathProgramCache]: Analyzing trace with hash 437426512, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:36,729 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:36,741 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:39:36,746 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:36,746 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:36,747 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:36,748 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:36,791 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:39:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:36,818 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 20:39:36,839 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:36,840 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:39:36,840 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:36,840 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 20:39:36,840 INFO L182 omatonBuilderFactory]: Interpolants [883#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 884#(= 1 (select |#valid| |main_#t~malloc3.base|)), 885#(= 1 (select |#valid| main_~item~0.base)), 886#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 878#true, 879#false] [2018-02-04 20:39:36,840 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 20:39:36,840 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:39:36,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:39:36,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:39:36,841 INFO L87 Difference]: Start difference. First operand 169 states and 195 transitions. Second operand 6 states. [2018-02-04 20:39:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:37,249 INFO L93 Difference]: Finished difference Result 272 states and 304 transitions. [2018-02-04 20:39:37,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:39:37,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-04 20:39:37,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:37,252 INFO L225 Difference]: With dead ends: 272 [2018-02-04 20:39:37,252 INFO L226 Difference]: Without dead ends: 272 [2018-02-04 20:39:37,253 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 20:39:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-02-04 20:39:37,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 175. [2018-02-04 20:39:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-02-04 20:39:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 202 transitions. [2018-02-04 20:39:37,262 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 202 transitions. Word has length 14 [2018-02-04 20:39:37,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:37,262 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 202 transitions. [2018-02-04 20:39:37,262 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:39:37,262 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 202 transitions. [2018-02-04 20:39:37,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 20:39:37,263 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:37,263 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:37,263 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:37,263 INFO L82 PathProgramCache]: Analyzing trace with hash 437426513, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:37,266 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:37,278 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:39:37,280 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:37,280 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:37,281 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:37,281 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:37,289 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:39:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:37,340 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 20:39:37,356 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:37,356 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:39:37,356 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:37,356 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 20:39:37,357 INFO L182 omatonBuilderFactory]: Interpolants [1344#(and (= 8 (select |#length| |main_#t~malloc3.base|)) (= 0 |main_#t~malloc3.offset|)), 1345#(and (<= 0 main_~item~0.offset) (<= (+ main_~item~0.offset 4) (select |#length| main_~item~0.base))), 1346#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1338#true, 1339#false, 1343#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp))] [2018-02-04 20:39:37,357 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 20:39:37,357 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:39:37,357 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:39:37,357 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:39:37,357 INFO L87 Difference]: Start difference. First operand 175 states and 202 transitions. Second operand 6 states. [2018-02-04 20:39:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:37,665 INFO L93 Difference]: Finished difference Result 307 states and 349 transitions. [2018-02-04 20:39:37,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:39:37,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-04 20:39:37,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:37,667 INFO L225 Difference]: With dead ends: 307 [2018-02-04 20:39:37,667 INFO L226 Difference]: Without dead ends: 307 [2018-02-04 20:39:37,667 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=27, Unknown=3, NotChecked=10, Total=56 [2018-02-04 20:39:37,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-02-04 20:39:37,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 175. [2018-02-04 20:39:37,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-02-04 20:39:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 200 transitions. [2018-02-04 20:39:37,675 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 200 transitions. Word has length 14 [2018-02-04 20:39:37,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:37,675 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 200 transitions. [2018-02-04 20:39:37,675 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:39:37,676 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 200 transitions. [2018-02-04 20:39:37,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 20:39:37,676 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:37,676 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:37,676 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:37,676 INFO L82 PathProgramCache]: Analyzing trace with hash 494684814, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) [2018-02-04 20:39:37,680 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:37,711 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 20:39:37,729 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:37,729 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:39:37,729 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:37,729 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 20:39:37,729 INFO L182 omatonBuilderFactory]: Interpolants [1840#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1833#true, 1834#false, 1838#(< main_~c1~0 5), 1839#|main_#t~short1|] [2018-02-04 20:39:37,729 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 20:39:37,729 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:39:37,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:39:37,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:39:37,730 INFO L87 Difference]: Start difference. First operand 175 states and 200 transitions. Second operand 5 states. [2018-02-04 20:39:38,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:38,004 INFO L93 Difference]: Finished difference Result 310 states and 351 transitions. [2018-02-04 20:39:38,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:39:38,005 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 20:39:38,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:38,006 INFO L225 Difference]: With dead ends: 310 [2018-02-04 20:39:38,006 INFO L226 Difference]: Without dead ends: 310 [2018-02-04 20:39:38,006 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 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 20:39:38,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-02-04 20:39:38,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 191. [2018-02-04 20:39:38,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-02-04 20:39:38,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 230 transitions. [2018-02-04 20:39:38,013 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 230 transitions. Word has length 14 [2018-02-04 20:39:38,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:38,013 INFO L432 AbstractCegarLoop]: Abstraction has 191 states and 230 transitions. [2018-02-04 20:39:38,013 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:39:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 230 transitions. [2018-02-04 20:39:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 20:39:38,014 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:38,014 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:38,014 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:38,015 INFO L82 PathProgramCache]: Analyzing trace with hash -539916942, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:38,017 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:38,029 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:39:38,031 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:38,031 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:38,031 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:38,031 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:38,035 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:39:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:38,062 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 20:39:38,090 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:38,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:39:38,091 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:38,091 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 20:39:38,091 INFO L182 omatonBuilderFactory]: Interpolants [2353#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 2354#(and (= 8 (select |#length| |main_#t~malloc3.base|)) (= 0 |main_#t~malloc3.offset|)), 2355#(and (<= 0 (+ main_~item~0.offset 4)) (<= (+ main_~item~0.offset 8) (select |#length| main_~item~0.base))), 2356#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2348#true, 2349#false] [2018-02-04 20:39:38,091 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 20:39:38,092 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:39:38,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:39:38,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:39:38,092 INFO L87 Difference]: Start difference. First operand 191 states and 230 transitions. Second operand 6 states. [2018-02-04 20:39:38,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:38,339 INFO L93 Difference]: Finished difference Result 218 states and 252 transitions. [2018-02-04 20:39:38,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:39:38,340 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 20:39:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:38,340 INFO L225 Difference]: With dead ends: 218 [2018-02-04 20:39:38,340 INFO L226 Difference]: Without dead ends: 218 [2018-02-04 20:39:38,341 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 20:39:38,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-02-04 20:39:38,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 188. [2018-02-04 20:39:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-02-04 20:39:38,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2018-02-04 20:39:38,344 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 16 [2018-02-04 20:39:38,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:38,344 INFO L432 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2018-02-04 20:39:38,344 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:39:38,344 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2018-02-04 20:39:38,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 20:39:38,345 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:38,345 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:38,345 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:38,345 INFO L82 PathProgramCache]: Analyzing trace with hash 809095649, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:38,353 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:38,390 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 20:39:38,421 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:38,421 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:39:38,421 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:38,422 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 20:39:38,422 INFO L182 omatonBuilderFactory]: Interpolants [2768#false, 2772#(= 0 main_~c1~0), 2773#(< main_~c1~0 6), 2774#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2767#true] [2018-02-04 20:39:38,422 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 20:39:38,422 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:39:38,422 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:39:38,423 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:39:38,423 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand 5 states. [2018-02-04 20:39:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:38,585 INFO L93 Difference]: Finished difference Result 320 states and 366 transitions. [2018-02-04 20:39:38,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:39:38,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-02-04 20:39:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:38,587 INFO L225 Difference]: With dead ends: 320 [2018-02-04 20:39:38,587 INFO L226 Difference]: Without dead ends: 320 [2018-02-04 20:39:38,587 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:39:38,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-02-04 20:39:38,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 188. [2018-02-04 20:39:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-02-04 20:39:38,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 220 transitions. [2018-02-04 20:39:38,590 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 220 transitions. Word has length 21 [2018-02-04 20:39:38,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:38,591 INFO L432 AbstractCegarLoop]: Abstraction has 188 states and 220 transitions. [2018-02-04 20:39:38,591 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:39:38,591 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 220 transitions. [2018-02-04 20:39:38,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 20:39:38,591 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:38,591 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:38,591 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:38,591 INFO L82 PathProgramCache]: Analyzing trace with hash -836569732, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:38,597 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:38,631 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 20:39:38,662 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:38,662 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:39:38,662 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:38,662 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 20:39:38,662 INFO L182 omatonBuilderFactory]: Interpolants [3287#true, 3288#false, 3292#(= 0 main_~c1~0), 3293#(< main_~c1~0 4), 3294#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:39:38,662 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 20:39:38,663 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:39:38,663 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:39:38,663 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:39:38,663 INFO L87 Difference]: Start difference. First operand 188 states and 220 transitions. Second operand 5 states. [2018-02-04 20:39:38,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:38,863 INFO L93 Difference]: Finished difference Result 301 states and 332 transitions. [2018-02-04 20:39:38,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:39:38,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-04 20:39:38,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:38,865 INFO L225 Difference]: With dead ends: 301 [2018-02-04 20:39:38,865 INFO L226 Difference]: Without dead ends: 301 [2018-02-04 20:39:38,866 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:39:38,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-02-04 20:39:38,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 182. [2018-02-04 20:39:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-02-04 20:39:38,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 211 transitions. [2018-02-04 20:39:38,870 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 211 transitions. Word has length 22 [2018-02-04 20:39:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:38,870 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 211 transitions. [2018-02-04 20:39:38,870 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:39:38,870 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 211 transitions. [2018-02-04 20:39:38,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 20:39:38,871 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:38,871 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 20:39:38,871 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:38,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1167715674, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:38,880 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:38,906 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 20:39:38,925 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:38,925 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:39:38,925 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:38,926 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 20:39:38,926 INFO L182 omatonBuilderFactory]: Interpolants [3782#true, 3783#false, 3787#(= 0 main_~c1~0), 3788#(< main_~c1~0 2), 3789#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:39:38,926 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 20:39:38,926 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:39:38,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:39:38,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:39:38,926 INFO L87 Difference]: Start difference. First operand 182 states and 211 transitions. Second operand 5 states. [2018-02-04 20:39:39,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:39,127 INFO L93 Difference]: Finished difference Result 317 states and 358 transitions. [2018-02-04 20:39:39,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:39:39,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-02-04 20:39:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:39,129 INFO L225 Difference]: With dead ends: 317 [2018-02-04 20:39:39,129 INFO L226 Difference]: Without dead ends: 317 [2018-02-04 20:39:39,129 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:39:39,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-02-04 20:39:39,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 182. [2018-02-04 20:39:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-02-04 20:39:39,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 210 transitions. [2018-02-04 20:39:39,133 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 210 transitions. Word has length 23 [2018-02-04 20:39:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:39,134 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 210 transitions. [2018-02-04 20:39:39,134 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:39:39,134 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 210 transitions. [2018-02-04 20:39:39,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 20:39:39,134 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:39,135 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] [2018-02-04 20:39:39,135 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:39,135 INFO L82 PathProgramCache]: Analyzing trace with hash -185338091, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:39,139 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,169 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 20:39:39,189 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:39,190 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:39:39,190 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:39,190 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 20:39:39,190 INFO L182 omatonBuilderFactory]: Interpolants [4293#true, 4294#false, 4298#(= 1 (select |#valid| |main_#t~malloc8.base|)), 4299#(= 1 (select |#valid| main_~lItem~0.base)), 4300#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:39:39,190 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 20:39:39,190 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:39:39,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:39:39,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:39:39,191 INFO L87 Difference]: Start difference. First operand 182 states and 210 transitions. Second operand 5 states. [2018-02-04 20:39:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:39,341 INFO L93 Difference]: Finished difference Result 216 states and 241 transitions. [2018-02-04 20:39:39,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:39:39,341 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-02-04 20:39:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:39,342 INFO L225 Difference]: With dead ends: 216 [2018-02-04 20:39:39,342 INFO L226 Difference]: Without dead ends: 216 [2018-02-04 20:39:39,342 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:39:39,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-02-04 20:39:39,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 178. [2018-02-04 20:39:39,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-02-04 20:39:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 203 transitions. [2018-02-04 20:39:39,344 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 203 transitions. Word has length 24 [2018-02-04 20:39:39,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:39,345 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 203 transitions. [2018-02-04 20:39:39,345 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:39:39,345 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 203 transitions. [2018-02-04 20:39:39,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 20:39:39,345 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:39,345 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] [2018-02-04 20:39:39,346 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:39,346 INFO L82 PathProgramCache]: Analyzing trace with hash -185338090, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:39,349 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,372 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 20:39:39,389 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:39,389 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:39:39,389 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:39,390 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 20:39:39,390 INFO L182 omatonBuilderFactory]: Interpolants [4704#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 4697#true, 4698#false, 4702#(and (= 8 (select |#length| |main_#t~malloc8.base|)) (= 0 |main_#t~malloc8.offset|)), 4703#(and (<= 0 main_~lItem~0.offset) (<= (+ main_~lItem~0.offset 4) (select |#length| main_~lItem~0.base)))] [2018-02-04 20:39:39,390 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 20:39:39,390 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:39:39,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:39:39,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:39:39,390 INFO L87 Difference]: Start difference. First operand 178 states and 203 transitions. Second operand 5 states. [2018-02-04 20:39:39,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:39,598 INFO L93 Difference]: Finished difference Result 225 states and 251 transitions. [2018-02-04 20:39:39,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:39:39,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-02-04 20:39:39,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:39,599 INFO L225 Difference]: With dead ends: 225 [2018-02-04 20:39:39,599 INFO L226 Difference]: Without dead ends: 225 [2018-02-04 20:39:39,600 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:39:39,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-02-04 20:39:39,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 176. [2018-02-04 20:39:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-02-04 20:39:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 199 transitions. [2018-02-04 20:39:39,602 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 199 transitions. Word has length 24 [2018-02-04 20:39:39,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:39,602 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 199 transitions. [2018-02-04 20:39:39,602 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:39:39,602 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 199 transitions. [2018-02-04 20:39:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 20:39:39,603 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:39,603 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] [2018-02-04 20:39:39,603 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:39,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2016244840, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:39,610 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,690 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 20:39:39,708 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:39,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:39:39,708 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:39,708 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 20:39:39,709 INFO L182 omatonBuilderFactory]: Interpolants [5108#true, 5109#false, 5113#(and (= 8 (select |#length| |main_#t~malloc8.base|)) (= 0 |main_#t~malloc8.offset|)), 5114#(and (<= 0 (+ main_~lItem~0.offset 4)) (<= (+ main_~lItem~0.offset 8) (select |#length| main_~lItem~0.base))), 5115#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:39:39,709 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 20:39:39,709 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:39:39,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:39:39,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:39:39,709 INFO L87 Difference]: Start difference. First operand 176 states and 199 transitions. Second operand 5 states. [2018-02-04 20:39:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:39,885 INFO L93 Difference]: Finished difference Result 175 states and 197 transitions. [2018-02-04 20:39:39,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:39:39,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-02-04 20:39:39,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:39,886 INFO L225 Difference]: With dead ends: 175 [2018-02-04 20:39:39,886 INFO L226 Difference]: Without dead ends: 175 [2018-02-04 20:39:39,886 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:39:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-02-04 20:39:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-02-04 20:39:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-02-04 20:39:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 197 transitions. [2018-02-04 20:39:39,889 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 197 transitions. Word has length 26 [2018-02-04 20:39:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:39,889 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 197 transitions. [2018-02-04 20:39:39,889 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:39:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 197 transitions. [2018-02-04 20:39:39,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-02-04 20:39:39,889 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:39,889 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:39,890 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:39,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1296067043, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:39,895 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,942 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:39,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 20:39:39,942 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:39,942 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 20:39:39,943 INFO L182 omatonBuilderFactory]: Interpolants [5473#(not (= 0 |main_#t~malloc8.base|)), 5474#(not (= 0 main_~lItem~0.base)), 5475#(not (= 0 main_~data~0.base)), 5476#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 5468#true, 5469#false] [2018-02-04 20:39:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,943 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:39:39,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:39:39,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:39:39,943 INFO L87 Difference]: Start difference. First operand 175 states and 197 transitions. Second operand 6 states. [2018-02-04 20:39:40,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:40,093 INFO L93 Difference]: Finished difference Result 277 states and 307 transitions. [2018-02-04 20:39:40,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:39:40,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-02-04 20:39:40,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:40,094 INFO L225 Difference]: With dead ends: 277 [2018-02-04 20:39:40,094 INFO L226 Difference]: Without dead ends: 277 [2018-02-04 20:39:40,094 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-02-04 20:39:40,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2018-02-04 20:39:40,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 173. [2018-02-04 20:39:40,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-02-04 20:39:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 192 transitions. [2018-02-04 20:39:40,098 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 192 transitions. Word has length 33 [2018-02-04 20:39:40,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:40,098 INFO L432 AbstractCegarLoop]: Abstraction has 173 states and 192 transitions. [2018-02-04 20:39:40,098 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:39:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 192 transitions. [2018-02-04 20:39:40,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-02-04 20:39:40,099 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:40,099 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:40,099 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 20:39:40,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1523368921, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:40,105 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:40,130 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 145 column 416: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) 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.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:200) 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.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) 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 20:39:40,133 INFO L168 Benchmark]: Toolchain (without parser) took 4895.51 ms. Allocated memory was 403.2 MB in the beginning and 694.7 MB in the end (delta: 291.5 MB). Free memory was 359.9 MB in the beginning and 605.5 MB in the end (delta: -245.6 MB). Peak memory consumption was 45.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,134 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 403.2 MB. Free memory is still 366.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:39:40,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.65 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 348.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,134 INFO L168 Benchmark]: Boogie Preprocessor took 30.04 ms. Allocated memory is still 403.2 MB. Free memory was 348.0 MB in the beginning and 346.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,134 INFO L168 Benchmark]: RCFGBuilder took 440.04 ms. Allocated memory is still 403.2 MB. Free memory was 346.6 MB in the beginning and 304.2 MB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,135 INFO L168 Benchmark]: TraceAbstraction took 4266.89 ms. Allocated memory was 403.2 MB in the beginning and 694.7 MB in the end (delta: 291.5 MB). Free memory was 304.2 MB in the beginning and 605.5 MB in the end (delta: -301.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:39:40,137 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 403.2 MB. Free memory is still 366.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 155.65 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 348.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.04 ms. Allocated memory is still 403.2 MB. Free memory was 348.0 MB in the beginning and 346.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 440.04 ms. Allocated memory is still 403.2 MB. Free memory was 346.6 MB in the beginning and 304.2 MB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4266.89 ms. Allocated memory was 403.2 MB in the beginning and 694.7 MB in the end (delta: 291.5 MB). Free memory was 304.2 MB in the beginning and 605.5 MB in the end (delta: -301.3 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 145 column 416: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 145 column 416: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) 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-0513_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-39-40-143.csv Received shutdown request...