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/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:41:54,497 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:41:54,499 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:41:54,511 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:41:54,512 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:41:54,513 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:41:54,514 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:41:54,516 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:41:54,518 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:41:54,519 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:41:54,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:41:54,520 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:41:54,521 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:41:54,522 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:41:54,523 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:41:54,524 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:41:54,525 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:41:54,527 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:41:54,529 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:41:54,531 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:41:54,532 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:41:54,533 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:41:54,536 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:41:54,536 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:41:54,537 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:41:54,538 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:41:54,539 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:41:54,540 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:41:54,541 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:41:54,542 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:41:54,542 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:41:54,543 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 14:41:54,546 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 14:41:54,576 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:41:54,577 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:41:54,578 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:41:54,578 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:41:54,578 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:41:54,579 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:41:54,579 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:41:54,579 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:41:54,579 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:41:54,580 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:41:54,580 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:41:54,580 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:41:54,580 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:41:54,580 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:41:54,581 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:41:54,581 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:41:54,581 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:41:54,581 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:41:54,581 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:41:54,582 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:41:54,582 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:41:54,582 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:41:54,582 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:41:54,582 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:41:54,583 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:41:54,583 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 14:41:54,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:41:54,662 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:41:54,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:41:54,668 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:41:54,668 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:41:54,669 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:54,983 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47888f7f/bdc78a92a6694d6c8afec06d03781d78/FLAGfaba81eb9 [2018-10-10 14:41:55,289 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:41:55,290 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:55,311 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47888f7f/bdc78a92a6694d6c8afec06d03781d78/FLAGfaba81eb9 [2018-10-10 14:41:55,326 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c47888f7f/bdc78a92a6694d6c8afec06d03781d78 [2018-10-10 14:41:55,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:41:55,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:41:55,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:55,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:41:55,342 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:41:55,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a72bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55, skipping insertion in model container [2018-10-10 14:41:55,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:41:55,401 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:41:55,639 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:55,654 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:41:55,743 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:55,808 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:41:55,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55 WrapperNode [2018-10-10 14:41:55,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:55,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:55,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:41:55,810 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:41:55,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:55,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:41:55,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:41:55,872 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:41:55,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (1/1) ... [2018-10-10 14:41:55,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:41:55,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:41:55,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:41:55,902 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:41:55,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (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 14:41:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:41:56,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:41:56,561 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:41:56,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:56 BoogieIcfgContainer [2018-10-10 14:41:56,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:41:56,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:41:56,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:41:56,567 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:41:56,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:41:55" (1/3) ... [2018-10-10 14:41:56,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97ef320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:56, skipping insertion in model container [2018-10-10 14:41:56,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:55" (2/3) ... [2018-10-10 14:41:56,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97ef320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:56, skipping insertion in model container [2018-10-10 14:41:56,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:56" (3/3) ... [2018-10-10 14:41:56,571 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:56,581 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:41:56,590 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-10-10 14:41:56,608 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-10-10 14:41:56,636 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:41:56,637 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:41:56,637 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:41:56,638 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:41:56,638 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:41:56,638 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:41:56,638 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:41:56,639 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:41:56,639 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:41:56,657 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2018-10-10 14:41:56,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-10 14:41:56,667 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:56,668 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 14:41:56,671 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:56,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:56,682 INFO L82 PathProgramCache]: Analyzing trace with hash -308119972, now seen corresponding path program 1 times [2018-10-10 14:41:56,684 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:56,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:56,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:56,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:56,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:57,330 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 14:41:57,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:57,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:41:57,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:41:57,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:41:57,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:41:57,360 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 10 states. [2018-10-10 14:41:58,011 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-10-10 14:41:58,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:58,375 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2018-10-10 14:41:58,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 14:41:58,376 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 47 [2018-10-10 14:41:58,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:58,388 INFO L225 Difference]: With dead ends: 101 [2018-10-10 14:41:58,388 INFO L226 Difference]: Without dead ends: 96 [2018-10-10 14:41:58,391 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-10-10 14:41:58,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-10-10 14:41:58,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 82. [2018-10-10 14:41:58,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-10 14:41:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2018-10-10 14:41:58,446 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 47 [2018-10-10 14:41:58,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:58,447 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2018-10-10 14:41:58,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:41:58,447 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2018-10-10 14:41:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-10 14:41:58,450 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:58,451 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, 1] [2018-10-10 14:41:58,451 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:58,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:58,452 INFO L82 PathProgramCache]: Analyzing trace with hash -961784443, now seen corresponding path program 1 times [2018-10-10 14:41:58,453 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:58,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:58,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:58,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:58,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:59,077 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 14:41:59,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:59,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 14:41:59,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 14:41:59,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 14:41:59,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:41:59,080 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand 13 states. [2018-10-10 14:42:00,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:00,373 INFO L93 Difference]: Finished difference Result 125 states and 130 transitions. [2018-10-10 14:42:00,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:42:00,374 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2018-10-10 14:42:00,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:00,376 INFO L225 Difference]: With dead ends: 125 [2018-10-10 14:42:00,376 INFO L226 Difference]: Without dead ends: 125 [2018-10-10 14:42:00,378 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2018-10-10 14:42:00,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-10-10 14:42:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 89. [2018-10-10 14:42:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-10-10 14:42:00,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2018-10-10 14:42:00,388 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 48 [2018-10-10 14:42:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:00,389 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2018-10-10 14:42:00,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 14:42:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2018-10-10 14:42:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-10 14:42:00,392 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:00,392 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, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:00,392 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:42:00,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:00,393 INFO L82 PathProgramCache]: Analyzing trace with hash -563539455, now seen corresponding path program 1 times [2018-10-10 14:42:00,393 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:00,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:00,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:00,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:00,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:00,643 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 14:42:00,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:42:00,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:42:00,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:42:00,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:42:00,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:42:00,645 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand 9 states. [2018-10-10 14:42:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:00,985 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2018-10-10 14:42:00,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-10 14:42:00,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-10-10 14:42:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:00,987 INFO L225 Difference]: With dead ends: 88 [2018-10-10 14:42:00,988 INFO L226 Difference]: Without dead ends: 71 [2018-10-10 14:42:00,988 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2018-10-10 14:42:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-10 14:42:00,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-10-10 14:42:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-10-10 14:42:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2018-10-10 14:42:00,995 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 53 [2018-10-10 14:42:00,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:00,996 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2018-10-10 14:42:00,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:42:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2018-10-10 14:42:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-10 14:42:00,998 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:00,998 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:00,998 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:42:00,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:00,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1133842509, now seen corresponding path program 1 times [2018-10-10 14:42:00,999 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:00,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:01,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:01,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:01,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:42:01,562 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:42:01,562 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 14:42:01,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:01,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:01,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:01,778 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,788 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-10-10 14:42:02,636 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:42:02,658 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:42:02,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2018-10-10 14:42:02,700 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-10 14:42:02,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-10 14:42:02,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-10 14:42:02,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1178, Unknown=0, NotChecked=0, Total=1260 [2018-10-10 14:42:02,706 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 36 states. [2018-10-10 14:42:03,870 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-10-10 14:42:04,050 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-10-10 14:42:04,300 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-10-10 14:42:04,523 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 46 [2018-10-10 14:42:04,716 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2018-10-10 14:42:04,958 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-10-10 14:42:05,273 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-10-10 14:42:05,578 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-10-10 14:42:05,892 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2018-10-10 14:42:06,308 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-10-10 14:42:06,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:06,638 INFO L93 Difference]: Finished difference Result 109 states and 111 transitions. [2018-10-10 14:42:06,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-10 14:42:06,639 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 68 [2018-10-10 14:42:06,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:06,640 INFO L225 Difference]: With dead ends: 109 [2018-10-10 14:42:06,640 INFO L226 Difference]: Without dead ends: 109 [2018-10-10 14:42:06,642 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=594, Invalid=2598, Unknown=0, NotChecked=0, Total=3192 [2018-10-10 14:42:06,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-10 14:42:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 91. [2018-10-10 14:42:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-10-10 14:42:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 93 transitions. [2018-10-10 14:42:06,649 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 93 transitions. Word has length 68 [2018-10-10 14:42:06,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:06,650 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 93 transitions. [2018-10-10 14:42:06,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-10 14:42:06,650 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 93 transitions. [2018-10-10 14:42:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-10 14:42:06,652 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:06,652 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:06,652 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:42:06,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:06,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1370183967, now seen corresponding path program 2 times [2018-10-10 14:42:06,653 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:06,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:06,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:06,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:06,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:07,392 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:42:07,393 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:42:07,393 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 14:42:07,406 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:42:07,441 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-10 14:42:07,442 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:42:07,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:07,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:07,467 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:07,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:07,482 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-10-10 14:42:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:42:08,343 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:42:08,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 32 [2018-10-10 14:42:08,345 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-10 14:42:08,349 WARN L205 ceAbstractionStarter]: Timeout [2018-10-10 14:42:08,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:42:08 BoogieIcfgContainer [2018-10-10 14:42:08,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:42:08,351 INFO L168 Benchmark]: Toolchain (without parser) took 13015.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 874.5 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -439.3 MB). Peak memory consumption was 435.2 MB. Max. memory is 7.1 GB. [2018-10-10 14:42:08,352 INFO L168 Benchmark]: CDTParser took 0.19 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 14:42:08,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.70 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:42:08,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.86 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 14:42:08,354 INFO L168 Benchmark]: Boogie Preprocessor took 29.35 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 14:42:08,355 INFO L168 Benchmark]: RCFGBuilder took 660.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2018-10-10 14:42:08,356 INFO L168 Benchmark]: TraceAbstraction took 11786.89 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 126.9 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 335.5 MB). Peak memory consumption was 462.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:42:08,362 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 471.70 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.86 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 29.35 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 660.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11786.89 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 126.9 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 335.5 MB). Peak memory consumption was 462.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 552]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 552). Cancelled while PathProgramDumpController was trying to verify (iteration 5). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 5). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 5). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 3 error locations. TIMEOUT Result, 11.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 6.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 302 SDtfs, 2278 SDslu, 2117 SDs, 0 SdLazy, 990 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=4, 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, 4 MinimizatonAttempts, 68 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 109418 SizeOfPredicates, 27 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Received shutdown request...