java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:53:24,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:53:24,342 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:53:24,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:53:24,355 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:53:24,357 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:53:24,360 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:53:24,363 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:53:24,365 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:53:24,368 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:53:24,371 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:53:24,371 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:53:24,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:53:24,374 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:53:24,380 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:53:24,381 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:53:24,387 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:53:24,389 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:53:24,394 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:53:24,398 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:53:24,400 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:53:24,402 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:53:24,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:53:24,406 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:53:24,406 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:53:24,408 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:53:24,409 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:53:24,410 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:53:24,411 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:53:24,414 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:53:24,415 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:53:24,415 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:53:24,416 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:53:24,416 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:53:24,419 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:53:24,420 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:53:24,420 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:53:24,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:53:24,440 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:53:24,442 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:53:24,442 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:53:24,442 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:53:24,442 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:53:24,443 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:53:24,443 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:53:24,443 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:53:24,443 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:53:24,444 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:53:24,444 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:53:24,444 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:53:24,444 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:53:24,444 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:53:24,445 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:53:24,445 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:53:24,445 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:53:24,445 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:53:24,445 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:53:24,446 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:53:24,446 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:53:24,446 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:53:24,446 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:53:24,446 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:53:24,447 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:53:24,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:53:24,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:53:24,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:53:24,515 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:53:24,516 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:53:24,517 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c [2018-10-10 14:53:24,820 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d295ac37/992306be143c445bb29551ff61c6b26a/FLAGda51f1c24 [2018-10-10 14:53:25,045 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:53:25,046 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c [2018-10-10 14:53:25,052 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d295ac37/992306be143c445bb29551ff61c6b26a/FLAGda51f1c24 [2018-10-10 14:53:25,067 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d295ac37/992306be143c445bb29551ff61c6b26a [2018-10-10 14:53:25,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:53:25,078 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:53:25,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:25,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:53:25,083 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:53:25,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb826bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25, skipping insertion in model container [2018-10-10 14:53:25,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:53:25,122 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:53:25,314 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:25,324 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:53:25,342 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:25,359 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:53:25,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25 WrapperNode [2018-10-10 14:53:25,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:25,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:25,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:53:25,360 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:53:25,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:25,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:53:25,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:53:25,398 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:53:25,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... [2018-10-10 14:53:25,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:53:25,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:53:25,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:53:25,421 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:53:25,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (1/1) ... No working directory specified, using /storage/repos/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 [2018-10-10 14:53:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:53:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:53:25,982 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:53:25,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:25 BoogieIcfgContainer [2018-10-10 14:53:25,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:53:25,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:53:25,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:53:25,987 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:53:25,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:53:25" (1/3) ... [2018-10-10 14:53:25,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eb5724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:25, skipping insertion in model container [2018-10-10 14:53:25,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:25" (2/3) ... [2018-10-10 14:53:25,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eb5724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:25, skipping insertion in model container [2018-10-10 14:53:25,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:25" (3/3) ... [2018-10-10 14:53:25,991 INFO L112 eAbstractionObserver]: Analyzing ICFG memset3_true-valid-memsafety_true-termination.c [2018-10-10 14:53:26,001 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:53:26,010 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-10-10 14:53:26,026 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-10-10 14:53:26,055 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:53:26,056 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:53:26,056 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:53:26,056 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:53:26,056 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:53:26,057 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:53:26,057 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:53:26,057 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:53:26,057 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:53:26,075 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-10 14:53:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-10 14:53:26,084 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:26,085 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:26,088 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:26,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:26,097 INFO L82 PathProgramCache]: Analyzing trace with hash -218556917, now seen corresponding path program 1 times [2018-10-10 14:53:26,099 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:26,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:26,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:26,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:26,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:26,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:26,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:53:26,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:53:26,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:53:26,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:53:26,377 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 6 states. [2018-10-10 14:53:26,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:26,912 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-10-10 14:53:26,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:53:26,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-10-10 14:53:26,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:26,927 INFO L225 Difference]: With dead ends: 53 [2018-10-10 14:53:26,927 INFO L226 Difference]: Without dead ends: 48 [2018-10-10 14:53:26,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:53:26,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-10 14:53:26,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-10-10 14:53:26,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-10 14:53:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-10-10 14:53:26,971 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 25 [2018-10-10 14:53:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:26,972 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-10-10 14:53:26,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:53:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-10-10 14:53:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-10 14:53:26,973 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:26,973 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:26,974 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:26,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:26,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1814670223, now seen corresponding path program 1 times [2018-10-10 14:53:26,974 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:26,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:26,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:26,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:26,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:27,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:27,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:27,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:53:27,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:53:27,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:53:27,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:53:27,288 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 8 states. [2018-10-10 14:53:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:27,712 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-10-10 14:53:27,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:53:27,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-10-10 14:53:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:27,714 INFO L225 Difference]: With dead ends: 47 [2018-10-10 14:53:27,714 INFO L226 Difference]: Without dead ends: 47 [2018-10-10 14:53:27,716 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:53:27,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-10 14:53:27,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-10-10 14:53:27,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-10-10 14:53:27,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-10-10 14:53:27,722 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 26 [2018-10-10 14:53:27,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:27,723 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-10-10 14:53:27,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:53:27,723 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-10-10 14:53:27,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-10 14:53:27,724 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:27,725 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:27,725 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:27,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:27,726 INFO L82 PathProgramCache]: Analyzing trace with hash -412732520, now seen corresponding path program 1 times [2018-10-10 14:53:27,726 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:27,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:27,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:27,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:27,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:27,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:27,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:53:27,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 14:53:27,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 14:53:27,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:53:27,847 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 4 states. [2018-10-10 14:53:27,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:27,888 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-10-10 14:53:27,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 14:53:27,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2018-10-10 14:53:27,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:27,891 INFO L225 Difference]: With dead ends: 49 [2018-10-10 14:53:27,891 INFO L226 Difference]: Without dead ends: 49 [2018-10-10 14:53:27,892 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:53:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-10 14:53:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-10-10 14:53:27,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-10 14:53:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-10-10 14:53:27,899 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2018-10-10 14:53:27,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:27,900 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-10-10 14:53:27,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 14:53:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-10-10 14:53:27,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-10 14:53:27,902 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:27,902 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:27,902 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:27,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:27,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1870204231, now seen corresponding path program 1 times [2018-10-10 14:53:27,903 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:27,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:27,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:27,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:27,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:27,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:27,998 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:28,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:28,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:28,424 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:28,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-10-10 14:53:28,471 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/memset3_true-valid-memsafety_true-termination.c_4.bpl [2018-10-10 14:53:28,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:28,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:28,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:28,476 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 7 states. [2018-10-10 14:53:28,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:28,566 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-10-10 14:53:28,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:53:28,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2018-10-10 14:53:28,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:28,569 INFO L225 Difference]: With dead ends: 51 [2018-10-10 14:53:28,570 INFO L226 Difference]: Without dead ends: 51 [2018-10-10 14:53:28,570 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:28,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-10 14:53:28,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2018-10-10 14:53:28,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-10 14:53:28,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-10-10 14:53:28,576 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2018-10-10 14:53:28,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:28,577 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-10-10 14:53:28,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:28,577 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-10-10 14:53:28,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-10 14:53:28,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:28,579 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:28,579 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:28,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:28,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1953787290, now seen corresponding path program 2 times [2018-10-10 14:53:28,580 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:28,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:28,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:28,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:28,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:28,675 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:28,675 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:28,691 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:53:28,717 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-10 14:53:28,717 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:53:28,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:29,012 WARN L854 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_ULTIMATE.dealloc_~addr.base Int)) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid| ULTIMATE.start_ULTIMATE.dealloc_~addr.base 0)) (= (select |c_ULTIMATE.start_main_old_#valid| ULTIMATE.start_ULTIMATE.dealloc_~addr.base) 0))) is different from true [2018-10-10 14:53:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-10 14:53:29,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-10 14:53:29,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 14 [2018-10-10 14:53:29,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:53:29,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:53:29,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2018-10-10 14:53:29,073 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 14 states. [2018-10-10 14:53:30,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:30,067 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-10-10 14:53:30,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:53:30,068 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 49 [2018-10-10 14:53:30,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:30,069 INFO L225 Difference]: With dead ends: 52 [2018-10-10 14:53:30,069 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 14:53:30,070 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=145, Invalid=458, Unknown=1, NotChecked=46, Total=650 [2018-10-10 14:53:30,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 14:53:30,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 14:53:30,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 14:53:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 14:53:30,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-10-10 14:53:30,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:30,071 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 14:53:30,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:53:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 14:53:30,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 14:53:30,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:53:30 BoogieIcfgContainer [2018-10-10 14:53:30,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:53:30,078 INFO L168 Benchmark]: Toolchain (without parser) took 5001.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -537.5 MB). Peak memory consumption was 201.7 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:30,081 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:30,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:30,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.48 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:30,083 INFO L168 Benchmark]: Boogie Preprocessor took 22.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:30,084 INFO L168 Benchmark]: RCFGBuilder took 561.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:30,085 INFO L168 Benchmark]: TraceAbstraction took 4093.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 240.0 MB). Peak memory consumption was 240.0 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:30,089 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 280.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.48 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 561.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4093.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 240.0 MB). Peak memory consumption was 240.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 3 error locations. SAFE Result, 4.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 188 SDtfs, 390 SDslu, 430 SDs, 0 SdLazy, 284 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 288 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 281 ConstructedInterpolants, 3 QuantifiedInterpolants, 39987 SizeOfPredicates, 9 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 4/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...