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/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-token_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:49:47,623 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:49:47,624 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:49:47,635 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:49:47,636 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:49:47,636 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:49:47,637 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:49:47,638 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:49:47,639 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:49:47,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:49:47,641 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:49:47,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:49:47,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:49:47,643 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:49:47,643 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:49:47,645 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:49:47,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:49:47,648 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:49:47,649 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:49:47,650 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:49:47,652 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 10:49:47,652 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 10:49:47,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 10:49:47,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 10:49:47,653 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 10:49:47,654 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 10:49:47,655 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 10:49:47,655 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 10:49:47,655 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 10:49:47,655 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:49:47,656 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:49:47,656 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 10:49:47,665 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:49:47,666 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:49:47,667 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:49:47,667 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:49:47,667 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:49:47,667 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:49:47,667 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:49:47,667 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:49:47,667 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:49:47,668 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:49:47,668 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:49:47,668 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:49:47,668 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:49:47,668 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:49:47,668 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:49:47,669 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:49:47,669 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:49:47,669 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:49:47,669 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:49:47,669 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:49:47,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:49:47,669 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:49:47,670 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:49:47,670 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:49:47,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:49:47,708 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:49:47,711 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:49:47,713 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:49:47,713 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:49:47,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token_true-unreach-call_true-valid-memsafety.i [2018-02-02 10:49:47,849 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:49:47,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:49:47,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:49:47,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:49:47,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:49:47,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:49:47" (1/1) ... [2018-02-02 10:49:47,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3643a13b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:47, skipping insertion in model container [2018-02-02 10:49:47,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:49:47" (1/1) ... [2018-02-02 10:49:47,876 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:49:47,906 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:49:47,999 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:49:48,013 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:49:48,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48 WrapperNode [2018-02-02 10:49:48,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:49:48,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:49:48,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:49:48,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:49:48,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (1/1) ... [2018-02-02 10:49:48,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (1/1) ... [2018-02-02 10:49:48,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (1/1) ... [2018-02-02 10:49:48,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (1/1) ... [2018-02-02 10:49:48,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (1/1) ... [2018-02-02 10:49:48,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (1/1) ... [2018-02-02 10:49:48,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (1/1) ... [2018-02-02 10:49:48,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:49:48,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:49:48,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:49:48,050 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:49:48,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (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 [2018-02-02 10:49:48,086 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:49:48,086 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:49:48,086 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:49:48,086 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:49:48,086 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:49:48,087 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 10:49:48,087 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 10:49:48,087 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:49:48,087 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:49:48,087 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:49:48,087 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:49:48,087 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:49:48,087 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:49:48,088 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 10:49:48,088 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:49:48,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:49:48,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:49:48,455 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:49:48,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:49:48 BoogieIcfgContainer [2018-02-02 10:49:48,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:49:48,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:49:48,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:49:48,460 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:49:48,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:49:47" (1/3) ... [2018-02-02 10:49:48,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4052411a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:49:48, skipping insertion in model container [2018-02-02 10:49:48,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:48" (2/3) ... [2018-02-02 10:49:48,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4052411a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:49:48, skipping insertion in model container [2018-02-02 10:49:48,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:49:48" (3/3) ... [2018-02-02 10:49:48,463 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-token_true-unreach-call_true-valid-memsafety.i [2018-02-02 10:49:48,472 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:49:48,479 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-02-02 10:49:48,514 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:49:48,515 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:49:48,515 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:49:48,515 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:49:48,515 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:49:48,515 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:49:48,515 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:49:48,516 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:49:48,516 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:49:48,533 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-02-02 10:49:48,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 10:49:48,543 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:48,544 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:48,544 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:48,548 INFO L82 PathProgramCache]: Analyzing trace with hash 460791465, now seen corresponding path program 1 times [2018-02-02 10:49:48,599 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:48,640 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:48,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:48,688 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:48,688 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:49:48,689 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:48,690 INFO L182 omatonBuilderFactory]: Interpolants [134#true, 135#false, 136#(= 1 (select |#valid| |main_#t~malloc0.base|)), 137#(= 1 (select |#valid| main_~head~0.base))] [2018-02-02 10:49:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:48,691 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:49:48,699 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:49:48,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:49:48,701 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 4 states. [2018-02-02 10:49:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:48,965 INFO L93 Difference]: Finished difference Result 152 states and 155 transitions. [2018-02-02 10:49:48,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:49:48,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 10:49:48,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:48,974 INFO L225 Difference]: With dead ends: 152 [2018-02-02 10:49:48,974 INFO L226 Difference]: Without dead ends: 149 [2018-02-02 10:49:48,975 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-02 10:49:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2018-02-02 10:49:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-02 10:49:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2018-02-02 10:49:49,003 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 8 [2018-02-02 10:49:49,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:49,003 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2018-02-02 10:49:49,003 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:49:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2018-02-02 10:49:49,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 10:49:49,004 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:49,004 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:49,004 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:49,004 INFO L82 PathProgramCache]: Analyzing trace with hash 460791466, now seen corresponding path program 1 times [2018-02-02 10:49:49,005 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:49,016 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,063 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:49,063 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:49:49,063 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,064 INFO L182 omatonBuilderFactory]: Interpolants [417#true, 418#false, 419#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 420#(and (= (select |#length| main_~head~0.base) 12) (= main_~head~0.offset 0))] [2018-02-02 10:49:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,065 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:49:49,065 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:49:49,066 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:49:49,066 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand 4 states. [2018-02-02 10:49:49,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:49,170 INFO L93 Difference]: Finished difference Result 146 states and 148 transitions. [2018-02-02 10:49:49,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:49:49,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 10:49:49,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:49,172 INFO L225 Difference]: With dead ends: 146 [2018-02-02 10:49:49,172 INFO L226 Difference]: Without dead ends: 146 [2018-02-02 10:49:49,172 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:49,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-02 10:49:49,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2018-02-02 10:49:49,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-02-02 10:49:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2018-02-02 10:49:49,179 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 8 [2018-02-02 10:49:49,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:49,180 INFO L432 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2018-02-02 10:49:49,180 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:49:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2018-02-02 10:49:49,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:49:49,180 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:49,180 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:49,180 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:49,181 INFO L82 PathProgramCache]: Analyzing trace with hash 108566574, now seen corresponding path program 1 times [2018-02-02 10:49:49,181 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:49,197 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,254 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:49,254 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:49:49,254 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,254 INFO L182 omatonBuilderFactory]: Interpolants [691#true, 692#false, 693#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 694#(and (= 0 main_~head~0.offset) (= 12 (select |#length| main_~head~0.base))), 695#(and (= main_~x~0.offset 0) (= (select |#length| main_~x~0.base) 12))] [2018-02-02 10:49:49,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,255 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:49:49,255 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:49:49,255 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:49,255 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand 5 states. [2018-02-02 10:49:49,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:49,449 INFO L93 Difference]: Finished difference Result 223 states and 227 transitions. [2018-02-02 10:49:49,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:49:49,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-02 10:49:49,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:49,450 INFO L225 Difference]: With dead ends: 223 [2018-02-02 10:49:49,451 INFO L226 Difference]: Without dead ends: 223 [2018-02-02 10:49:49,451 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:49:49,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-02-02 10:49:49,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 165. [2018-02-02 10:49:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-02-02 10:49:49,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 194 transitions. [2018-02-02 10:49:49,460 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 194 transitions. Word has length 15 [2018-02-02 10:49:49,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:49,460 INFO L432 AbstractCegarLoop]: Abstraction has 165 states and 194 transitions. [2018-02-02 10:49:49,460 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:49:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 194 transitions. [2018-02-02 10:49:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:49:49,461 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:49,461 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:49,461 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:49,461 INFO L82 PathProgramCache]: Analyzing trace with hash 108566573, now seen corresponding path program 1 times [2018-02-02 10:49:49,462 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:49,474 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,501 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:49,502 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:49:49,502 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,502 INFO L182 omatonBuilderFactory]: Interpolants [1088#true, 1089#false, 1090#(= 1 (select |#valid| main_~head~0.base)), 1091#(= 1 (select |#valid| main_~x~0.base))] [2018-02-02 10:49:49,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,503 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:49:49,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:49:49,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:49:49,503 INFO L87 Difference]: Start difference. First operand 165 states and 194 transitions. Second operand 4 states. [2018-02-02 10:49:49,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:49,594 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2018-02-02 10:49:49,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:49:49,594 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-02-02 10:49:49,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:49,595 INFO L225 Difference]: With dead ends: 152 [2018-02-02 10:49:49,595 INFO L226 Difference]: Without dead ends: 152 [2018-02-02 10:49:49,596 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-02-02 10:49:49,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2018-02-02 10:49:49,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-02-02 10:49:49,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 162 transitions. [2018-02-02 10:49:49,603 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 162 transitions. Word has length 15 [2018-02-02 10:49:49,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:49,604 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 162 transitions. [2018-02-02 10:49:49,604 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:49:49,604 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 162 transitions. [2018-02-02 10:49:49,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:49:49,604 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:49,604 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:49,605 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:49,605 INFO L82 PathProgramCache]: Analyzing trace with hash 197081690, now seen corresponding path program 1 times [2018-02-02 10:49:49,606 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:49,622 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:49,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,674 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:49,674 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:49:49,674 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,674 INFO L182 omatonBuilderFactory]: Interpolants [1396#true, 1397#false, 1398#(and (= 0 |main_#t~malloc5.offset|) (= 12 (select |#length| |main_#t~malloc5.base|))), 1399#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 1400#(and (= (select |#length| |main_#t~mem7.base|) 12) (= |main_#t~mem7.offset| 0))] [2018-02-02 10:49:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,675 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:49:49,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:49:49,675 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:49,675 INFO L87 Difference]: Start difference. First operand 150 states and 162 transitions. Second operand 5 states. [2018-02-02 10:49:49,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:49,899 INFO L93 Difference]: Finished difference Result 240 states and 255 transitions. [2018-02-02 10:49:49,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 10:49:49,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 10:49:49,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:49,901 INFO L225 Difference]: With dead ends: 240 [2018-02-02 10:49:49,901 INFO L226 Difference]: Without dead ends: 240 [2018-02-02 10:49:49,901 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-02 10:49:49,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-02-02 10:49:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 149. [2018-02-02 10:49:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-02 10:49:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 160 transitions. [2018-02-02 10:49:49,907 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 160 transitions. Word has length 18 [2018-02-02 10:49:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:49,907 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 160 transitions. [2018-02-02 10:49:49,907 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:49:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2018-02-02 10:49:49,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:49:49,908 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:49,908 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:49,908 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:49,908 INFO L82 PathProgramCache]: Analyzing trace with hash 197081689, now seen corresponding path program 1 times [2018-02-02 10:49:49,909 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:49,920 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,949 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:49,950 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:49:49,950 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,950 INFO L182 omatonBuilderFactory]: Interpolants [1796#true, 1797#false, 1798#(= 1 (select |#valid| |main_#t~malloc5.base|)), 1799#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 1800#(= 1 (select |#valid| |main_#t~mem7.base|))] [2018-02-02 10:49:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:49,951 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:49:49,951 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:49:49,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:49,951 INFO L87 Difference]: Start difference. First operand 149 states and 160 transitions. Second operand 5 states. [2018-02-02 10:49:50,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:50,099 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2018-02-02 10:49:50,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:49:50,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 10:49:50,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:50,100 INFO L225 Difference]: With dead ends: 212 [2018-02-02 10:49:50,100 INFO L226 Difference]: Without dead ends: 212 [2018-02-02 10:49:50,101 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:49:50,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-02-02 10:49:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 148. [2018-02-02 10:49:50,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-02-02 10:49:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2018-02-02 10:49:50,104 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 18 [2018-02-02 10:49:50,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:50,104 INFO L432 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2018-02-02 10:49:50,104 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:49:50,105 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2018-02-02 10:49:50,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 10:49:50,105 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:50,105 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:50,105 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:50,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1794584241, now seen corresponding path program 1 times [2018-02-02 10:49:50,106 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:50,114 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:50,140 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:50,140 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:49:50,140 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:50,141 INFO L182 omatonBuilderFactory]: Interpolants [2165#true, 2166#false, 2167#(= 1 (select |#valid| |main_#t~malloc12.base|)), 2168#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 2169#(= 1 (select |#valid| |main_#t~mem14.base|))] [2018-02-02 10:49:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:50,141 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:49:50,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:49:50,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:50,142 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand 5 states. [2018-02-02 10:49:50,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:50,228 INFO L93 Difference]: Finished difference Result 149 states and 156 transitions. [2018-02-02 10:49:50,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:49:50,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 10:49:50,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:50,229 INFO L225 Difference]: With dead ends: 149 [2018-02-02 10:49:50,229 INFO L226 Difference]: Without dead ends: 149 [2018-02-02 10:49:50,229 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:49:50,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-02 10:49:50,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2018-02-02 10:49:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-02-02 10:49:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2018-02-02 10:49:50,232 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 19 [2018-02-02 10:49:50,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:50,232 INFO L432 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2018-02-02 10:49:50,232 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:49:50,232 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2018-02-02 10:49:50,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 10:49:50,233 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:50,233 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:50,233 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:50,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1794584242, now seen corresponding path program 1 times [2018-02-02 10:49:50,234 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:50,243 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:50,292 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:50,292 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:49:50,292 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:50,292 INFO L182 omatonBuilderFactory]: Interpolants [2470#true, 2471#false, 2472#(and (= 0 |main_#t~malloc12.offset|) (= 12 (select |#length| |main_#t~malloc12.base|))), 2473#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 2474#(and (= |main_#t~mem14.offset| 0) (= (select |#length| |main_#t~mem14.base|) 12))] [2018-02-02 10:49:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:49:50,293 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:49:50,293 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:49:50,293 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:50,293 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand 5 states. [2018-02-02 10:49:50,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:50,423 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2018-02-02 10:49:50,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 10:49:50,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 10:49:50,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:50,424 INFO L225 Difference]: With dead ends: 146 [2018-02-02 10:49:50,424 INFO L226 Difference]: Without dead ends: 146 [2018-02-02 10:49:50,425 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-02 10:49:50,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-02 10:49:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-02-02 10:49:50,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-02-02 10:49:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2018-02-02 10:49:50,428 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 19 [2018-02-02 10:49:50,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:50,428 INFO L432 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2018-02-02 10:49:50,428 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:49:50,428 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2018-02-02 10:49:50,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 10:49:50,429 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:50,429 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] [2018-02-02 10:49:50,429 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 10:49:50,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1293732257, now seen corresponding path program 1 times [2018-02-02 10:49:50,430 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:50,445 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:50,450 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.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) [2018-02-02 10:49:50,454 INFO L168 Benchmark]: Toolchain (without parser) took 2604.16 ms. Allocated memory was 402.1 MB in the beginning and 634.9 MB in the end (delta: 232.8 MB). Free memory was 358.8 MB in the beginning and 463.6 MB in the end (delta: -104.8 MB). Peak memory consumption was 128.0 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:50,455 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 402.1 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:49:50,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.32 ms. Allocated memory is still 402.1 MB. Free memory was 358.8 MB in the beginning and 346.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:50,455 INFO L168 Benchmark]: Boogie Preprocessor took 27.83 ms. Allocated memory is still 402.1 MB. Free memory was 346.9 MB in the beginning and 345.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:50,455 INFO L168 Benchmark]: RCFGBuilder took 406.46 ms. Allocated memory is still 402.1 MB. Free memory was 345.6 MB in the beginning and 309.7 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:50,456 INFO L168 Benchmark]: TraceAbstraction took 1996.26 ms. Allocated memory was 402.1 MB in the beginning and 634.9 MB in the end (delta: 232.8 MB). Free memory was 309.7 MB in the beginning and 463.6 MB in the end (delta: -153.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:50,457 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 402.1 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 170.32 ms. Allocated memory is still 402.1 MB. Free memory was 358.8 MB in the beginning and 346.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.83 ms. Allocated memory is still 402.1 MB. Free memory was 346.9 MB in the beginning and 345.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 406.46 ms. Allocated memory is still 402.1 MB. Free memory was 345.6 MB in the beginning and 309.7 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1996.26 ms. Allocated memory was 402.1 MB in the beginning and 634.9 MB in the end (delta: 232.8 MB). Free memory was 309.7 MB in the beginning and 463.6 MB in the end (delta: -153.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-token_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-49-50-463.csv Received shutdown request...