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_Array.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 09:48:51,729 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 09:48:51,730 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 09:48:51,743 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 09:48:51,743 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 09:48:51,744 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 09:48:51,745 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 09:48:51,746 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 09:48:51,748 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 09:48:51,749 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 09:48:51,749 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 09:48:51,750 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 09:48:51,750 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 09:48:51,751 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 09:48:51,752 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 09:48:51,754 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 09:48:51,755 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 09:48:51,757 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 09:48:51,758 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 09:48:51,759 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 09:48:51,761 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 09:48:51,765 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 09:48:51,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 09:48:51,765 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_Array.epf [2018-02-02 09:48:51,775 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 09:48:51,775 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 09:48:51,776 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 09:48:51,776 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 09:48:51,776 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 09:48:51,776 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 09:48:51,776 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 09:48:51,777 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 09:48:51,777 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 09:48:51,778 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 09:48:51,778 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 09:48:51,778 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 09:48:51,778 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 09:48:51,778 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 09:48:51,778 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 09:48:51,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 09:48:51,823 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 09:48:51,826 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 09:48:51,827 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 09:48:51,828 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 09:48:51,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-02-02 09:48:51,950 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 09:48:51,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 09:48:51,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 09:48:51,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 09:48:51,958 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 09:48:51,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:48:51" (1/1) ... [2018-02-02 09:48:51,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc9cdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:51, skipping insertion in model container [2018-02-02 09:48:51,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:48:51" (1/1) ... [2018-02-02 09:48:51,972 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 09:48:52,001 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 09:48:52,094 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 09:48:52,106 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 09:48:52,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52 WrapperNode [2018-02-02 09:48:52,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 09:48:52,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 09:48:52,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 09:48:52,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 09:48:52,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (1/1) ... [2018-02-02 09:48:52,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (1/1) ... [2018-02-02 09:48:52,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (1/1) ... [2018-02-02 09:48:52,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (1/1) ... [2018-02-02 09:48:52,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (1/1) ... [2018-02-02 09:48:52,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (1/1) ... [2018-02-02 09:48:52,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (1/1) ... [2018-02-02 09:48:52,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 09:48:52,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 09:48:52,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 09:48:52,137 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 09:48:52,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (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 09:48:52,178 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 09:48:52,178 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 09:48:52,178 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemset [2018-02-02 09:48:52,178 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 09:48:52,178 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 09:48:52,178 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 09:48:52,178 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 09:48:52,179 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 09:48:52,179 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 09:48:52,179 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 09:48:52,179 INFO L128 BoogieDeclarations]: Found specification of procedure cmemset [2018-02-02 09:48:52,179 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 09:48:52,179 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 09:48:52,179 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 09:48:52,322 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 09:48:52,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:48:52 BoogieIcfgContainer [2018-02-02 09:48:52,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 09:48:52,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 09:48:52,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 09:48:52,326 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 09:48:52,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:48:51" (1/3) ... [2018-02-02 09:48:52,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f88a3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:48:52, skipping insertion in model container [2018-02-02 09:48:52,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:48:52" (2/3) ... [2018-02-02 09:48:52,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f88a3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:48:52, skipping insertion in model container [2018-02-02 09:48:52,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:48:52" (3/3) ... [2018-02-02 09:48:52,329 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-02-02 09:48:52,337 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 09:48:52,344 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-02 09:48:52,374 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 09:48:52,375 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 09:48:52,375 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 09:48:52,375 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 09:48:52,375 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 09:48:52,375 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 09:48:52,375 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 09:48:52,375 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 09:48:52,376 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 09:48:52,386 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-02-02 09:48:52,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 09:48:52,394 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:48:52,395 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 09:48:52,395 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-02 09:48:52,400 INFO L82 PathProgramCache]: Analyzing trace with hash -930191962, now seen corresponding path program 1 times [2018-02-02 09:48:52,436 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 09:48:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:48:52,482 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:48:52,619 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 09:48:52,621 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:48:52,622 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 09:48:52,622 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 09:48:52,623 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 09:48:52,623 INFO L182 omatonBuilderFactory]: Interpolants [34#true, 35#false, 36#(= 1 (select |#valid| |main_#t~malloc6.base|)), 37#(= 1 (select |#valid| main_~nondetArea~0.base)), 38#(= 1 (select |#valid| |cmemset_#in~dst.base|)), 39#(= 1 (select |#valid| cmemset_~dst.base)), 40#(= 1 (select |#valid| cmemset_~d~0.base)), 41#(= 1 (select |#valid| |cmemset_#t~post1.base|))] [2018-02-02 09:48:52,623 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 09:48:52,624 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 09:48:52,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 09:48:52,633 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-02 09:48:52,634 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 8 states. [2018-02-02 09:48:52,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:48:52,797 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-02-02 09:48:52,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 09:48:52,850 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-02-02 09:48:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:48:52,857 INFO L225 Difference]: With dead ends: 33 [2018-02-02 09:48:52,857 INFO L226 Difference]: Without dead ends: 30 [2018-02-02 09:48:52,859 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-02-02 09:48:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-02 09:48:52,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2018-02-02 09:48:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-02-02 09:48:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-02-02 09:48:52,883 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 15 [2018-02-02 09:48:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:48:52,884 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-02-02 09:48:52,884 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 09:48:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-02-02 09:48:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 09:48:52,884 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:48:52,884 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 09:48:52,884 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-02 09:48:52,885 INFO L82 PathProgramCache]: Analyzing trace with hash -930191961, now seen corresponding path program 1 times [2018-02-02 09:48:52,886 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 09:48:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:48:52,905 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:48:53,018 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 09:48:53,019 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:48:53,019 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-02 09:48:53,019 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 09:48:53,019 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 09:48:53,019 INFO L182 omatonBuilderFactory]: Interpolants [112#(<= 1 main_~n~0), 113#(and (= 0 |main_#t~malloc6.offset|) (<= 1 main_~n~0) (= main_~n~0 (select |#length| |main_#t~malloc6.base|))), 114#(and (= main_~n~0 (select |#length| main_~nondetArea~0.base)) (<= 1 main_~n~0) (= 0 main_~nondetArea~0.offset)), 115#(and (= 0 |cmemset_#in~dst.offset|) (<= 1 (select |#length| |cmemset_#in~dst.base|))), 116#(and (= 0 cmemset_~dst.offset) (<= 1 (select |#length| cmemset_~dst.base))), 117#(and (= 0 cmemset_~d~0.offset) (<= 1 (select |#length| cmemset_~d~0.base))), 118#(and (= |cmemset_#t~post1.offset| 0) (<= 1 (select |#length| |cmemset_#t~post1.base|))), 110#true, 111#false] [2018-02-02 09:48:53,020 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 09:48:53,021 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 09:48:53,021 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 09:48:53,021 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-02 09:48:53,022 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 9 states. [2018-02-02 09:48:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:48:53,149 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-02-02 09:48:53,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 09:48:53,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-02-02 09:48:53,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:48:53,150 INFO L225 Difference]: With dead ends: 30 [2018-02-02 09:48:53,150 INFO L226 Difference]: Without dead ends: 30 [2018-02-02 09:48:53,151 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-02-02 09:48:53,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-02 09:48:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-02-02 09:48:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-02-02 09:48:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-02-02 09:48:53,155 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2018-02-02 09:48:53,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:48:53,155 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-02-02 09:48:53,155 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 09:48:53,155 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-02-02 09:48:53,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 09:48:53,156 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:48:53,156 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 09:48:53,156 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-02 09:48:53,156 INFO L82 PathProgramCache]: Analyzing trace with hash -890079964, now seen corresponding path program 1 times [2018-02-02 09:48:53,157 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 09:48:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:48:53,181 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:48:53,235 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 09:48:53,236 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:48:53,236 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 09:48:53,236 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 09:48:53,236 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 09:48:53,236 INFO L182 omatonBuilderFactory]: Interpolants [186#true, 187#false, 188#(= |#valid| |old(#valid)|), 189#(= (store |#valid| |main_#t~malloc6.base| (select (store |#valid| |main_#t~malloc6.base| 0) |main_#t~malloc6.base|)) |old(#valid)|)] [2018-02-02 09:48:53,237 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 09:48:53,237 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 09:48:53,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 09:48:53,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 09:48:53,237 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 4 states. [2018-02-02 09:48:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:48:53,275 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-02-02 09:48:53,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 09:48:53,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-02-02 09:48:53,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:48:53,276 INFO L225 Difference]: With dead ends: 28 [2018-02-02 09:48:53,277 INFO L226 Difference]: Without dead ends: 21 [2018-02-02 09:48:53,277 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 09:48:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-02-02 09:48:53,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-02-02 09:48:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-02-02 09:48:53,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-02-02 09:48:53,279 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2018-02-02 09:48:53,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:48:53,280 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-02-02 09:48:53,280 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 09:48:53,280 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-02-02 09:48:53,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 09:48:53,280 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:48:53,281 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 09:48:53,281 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-02 09:48:53,281 INFO L82 PathProgramCache]: Analyzing trace with hash -715906328, now seen corresponding path program 1 times [2018-02-02 09:48:53,282 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 09:48:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:48:53,298 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:48:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 09:48:53,449 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 09:48:53,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-02-02 09:48:53,449 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 09:48:53,449 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 09:48:53,450 INFO L182 omatonBuilderFactory]: Interpolants [241#true, 242#false, 243#(<= 1 main_~n~0), 244#(and (= 0 |main_#t~malloc6.offset|) (<= 1 main_~n~0) (= main_~n~0 (select |#length| |main_#t~malloc6.base|))), 245#(and (= main_~n~0 (select |#length| main_~nondetArea~0.base)) (<= 1 main_~n~0) (= 0 main_~nondetArea~0.offset)), 246#(and (<= |cmemset_#in~n| (select |#length| |cmemset_#in~dst.base|)) (<= 1 |cmemset_#in~n|) (= 0 |cmemset_#in~dst.offset|)), 247#(and (= 0 cmemset_~dst.offset) (<= cmemset_~n (select |#length| cmemset_~dst.base)) (<= 1 cmemset_~n)), 248#(and (= 0 cmemset_~d~0.offset) (<= cmemset_~n (select |#length| cmemset_~d~0.base)) (<= 1 cmemset_~n)), 249#(and (= |cmemset_#t~post1.offset| 0) (<= (+ |cmemset_#t~post1.offset| 1) cmemset_~d~0.offset) (<= 1 cmemset_~n) (<= (+ cmemset_~n cmemset_~d~0.offset) (+ (select |#length| cmemset_~d~0.base) |cmemset_#t~post1.offset| 1))), 250#(and (<= 1 cmemset_~d~0.offset) (<= (+ cmemset_~n cmemset_~d~0.offset) (+ (select |#length| cmemset_~d~0.base) 1)) (<= 1 cmemset_~n)), 251#(and (<= 1 cmemset_~d~0.offset) (< 0 (+ (div |cmemset_#t~pre0| 4294967296) 1)) (or (<= |cmemset_#t~pre0| (* 4294967296 (div |cmemset_#t~pre0| 4294967296))) (<= (+ |cmemset_#t~pre0| cmemset_~d~0.offset) (select |#length| cmemset_~d~0.base)))), 252#(and (<= 1 cmemset_~d~0.offset) (<= (+ cmemset_~d~0.offset 1) (select |#length| cmemset_~d~0.base))), 253#(and (<= 1 |cmemset_#t~post1.offset|) (<= (+ |cmemset_#t~post1.offset| 1) (select |#length| |cmemset_#t~post1.base|)))] [2018-02-02 09:48:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 09:48:53,450 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-02 09:48:53,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-02 09:48:53,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-02-02 09:48:53,451 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 13 states. [2018-02-02 09:48:53,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:48:53,648 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-02-02 09:48:53,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-02 09:48:53,648 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2018-02-02 09:48:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:48:53,648 INFO L225 Difference]: With dead ends: 27 [2018-02-02 09:48:53,648 INFO L226 Difference]: Without dead ends: 27 [2018-02-02 09:48:53,649 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2018-02-02 09:48:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-02-02 09:48:53,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-02-02 09:48:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-02-02 09:48:53,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-02-02 09:48:53,650 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 20 [2018-02-02 09:48:53,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:48:53,651 INFO L432 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-02-02 09:48:53,651 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-02 09:48:53,651 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-02-02 09:48:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 09:48:53,651 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:48:53,651 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 09:48:53,651 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-02 09:48:53,652 INFO L82 PathProgramCache]: Analyzing trace with hash -293108153, now seen corresponding path program 2 times [2018-02-02 09:48:53,652 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 09:48:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:48:53,667 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:48:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 09:48:53,883 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-02 09:48:53,883 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-02 09:48:53,883 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 09:48:53,884 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 09:48:53,884 INFO L182 omatonBuilderFactory]: Interpolants [323#true, 324#false, 325#(and (= 0 |main_#t~malloc6.offset|) (= main_~n~0 (select |#length| |main_#t~malloc6.base|))), 326#(and (= main_~n~0 (select |#length| main_~nondetArea~0.base)) (= 0 main_~nondetArea~0.offset)), 327#(and (<= |cmemset_#in~n| (select |#length| |cmemset_#in~dst.base|)) (<= (select |#length| |cmemset_#in~dst.base|) |cmemset_#in~n|) (= 0 |cmemset_#in~dst.offset|)), 328#(and (= 0 cmemset_~dst.offset) (<= (select |#length| cmemset_~dst.base) cmemset_~n) (<= cmemset_~n (select |#length| cmemset_~dst.base))), 329#(and (= 0 cmemset_~d~0.offset) (<= (select |#length| cmemset_~d~0.base) cmemset_~n) (<= cmemset_~n (select |#length| cmemset_~d~0.base))), 330#(and (= |cmemset_#t~post1.offset| 0) (<= (+ |cmemset_#t~post1.offset| 1) cmemset_~d~0.offset) (<= (+ cmemset_~n cmemset_~d~0.offset) (+ (select |#length| cmemset_~d~0.base) |cmemset_#t~post1.offset| 1)) (<= (+ (select |#length| cmemset_~d~0.base) |cmemset_#t~post1.offset| 1) (+ cmemset_~n cmemset_~d~0.offset))), 331#(and (<= 1 cmemset_~d~0.offset) (<= (+ cmemset_~n cmemset_~d~0.offset) (+ (select |#length| cmemset_~d~0.base) 1)) (<= (+ (select |#length| cmemset_~d~0.base) 1) (+ cmemset_~n cmemset_~d~0.offset))), 332#(and (<= 1 cmemset_~d~0.offset) (<= (select |#length| cmemset_~d~0.base) (+ cmemset_~n cmemset_~d~0.offset)) (<= (+ cmemset_~n cmemset_~d~0.offset) (select |#length| cmemset_~d~0.base))), 333#(and (<= (select |#length| |cmemset_#t~post1.base|) (+ cmemset_~n |cmemset_#t~post1.offset|)) (<= (+ cmemset_~n cmemset_~d~0.offset) (+ (select |#length| cmemset_~d~0.base) 1)) (<= 2 cmemset_~d~0.offset)), 334#(and (<= (+ cmemset_~n cmemset_~d~0.offset) (+ (select |#length| cmemset_~d~0.base) 1)) (<= 2 cmemset_~d~0.offset) (<= 1 cmemset_~n)), 335#(and (< 0 (+ (div |cmemset_#t~pre0| 4294967296) 1)) (or (<= |cmemset_#t~pre0| (* 4294967296 (div |cmemset_#t~pre0| 4294967296))) (<= (+ |cmemset_#t~pre0| cmemset_~d~0.offset) (select |#length| cmemset_~d~0.base))) (<= 2 cmemset_~d~0.offset)), 336#(and (<= 2 cmemset_~d~0.offset) (<= (+ cmemset_~d~0.offset 1) (select |#length| cmemset_~d~0.base))), 337#(and (<= 2 |cmemset_#t~post1.offset|) (<= (+ |cmemset_#t~post1.offset| 1) (select |#length| |cmemset_#t~post1.base|)))] [2018-02-02 09:48:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 09:48:53,884 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-02 09:48:53,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-02 09:48:53,885 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-02-02 09:48:53,885 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 15 states. [2018-02-02 09:48:54,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:48:54,167 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2018-02-02 09:48:54,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-02 09:48:54,167 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2018-02-02 09:48:54,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:48:54,168 INFO L225 Difference]: With dead ends: 26 [2018-02-02 09:48:54,168 INFO L226 Difference]: Without dead ends: 0 [2018-02-02 09:48:54,168 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2018-02-02 09:48:54,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-02 09:48:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-02 09:48:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-02 09:48:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-02 09:48:54,169 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-02-02 09:48:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:48:54,169 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-02 09:48:54,169 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-02 09:48:54,169 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-02 09:48:54,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-02 09:48:54,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:48:54 BoogieIcfgContainer [2018-02-02 09:48:54,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 09:48:54,173 INFO L168 Benchmark]: Toolchain (without parser) took 2222.90 ms. Allocated memory was 406.8 MB in the beginning and 628.6 MB in the end (delta: 221.8 MB). Free memory was 365.0 MB in the beginning and 487.7 MB in the end (delta: -122.7 MB). Peak memory consumption was 99.1 MB. Max. memory is 5.3 GB. [2018-02-02 09:48:54,174 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 406.8 MB. Free memory is still 370.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 09:48:54,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.79 ms. Allocated memory is still 406.8 MB. Free memory was 363.7 MB in the beginning and 354.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. [2018-02-02 09:48:54,175 INFO L168 Benchmark]: Boogie Preprocessor took 26.12 ms. Allocated memory is still 406.8 MB. Free memory was 354.5 MB in the beginning and 351.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 09:48:54,175 INFO L168 Benchmark]: RCFGBuilder took 185.25 ms. Allocated memory is still 406.8 MB. Free memory was 351.8 MB in the beginning and 336.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 5.3 GB. [2018-02-02 09:48:54,175 INFO L168 Benchmark]: TraceAbstraction took 1849.79 ms. Allocated memory was 406.8 MB in the beginning and 628.6 MB in the end (delta: 221.8 MB). Free memory was 336.5 MB in the beginning and 487.7 MB in the end (delta: -151.2 MB). Peak memory consumption was 70.5 MB. Max. memory is 5.3 GB. [2018-02-02 09:48:54,176 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 406.8 MB. Free memory is still 370.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 158.79 ms. Allocated memory is still 406.8 MB. Free memory was 363.7 MB in the beginning and 354.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.12 ms. Allocated memory is still 406.8 MB. Free memory was 354.5 MB in the beginning and 351.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 185.25 ms. Allocated memory is still 406.8 MB. Free memory was 351.8 MB in the beginning and 336.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1849.79 ms. Allocated memory was 406.8 MB in the beginning and 628.6 MB in the end (delta: 221.8 MB). Free memory was 336.5 MB in the beginning and 487.7 MB in the end (delta: -151.2 MB). Peak memory consumption was 70.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 551]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 3 error locations. SAFE Result, 1.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 97 SDtfs, 124 SDslu, 439 SDs, 0 SdLazy, 431 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/11 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 12777 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/11 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_09-48-54-181.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_09-48-54-181.csv Received shutdown request...