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/loop-acceleration/array3_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:55:23,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:55:23,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:55:23,565 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:55:23,566 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:55:23,568 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:55:23,569 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:55:23,571 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:55:23,574 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:55:23,575 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:55:23,577 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:55:23,577 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:55:23,578 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:55:23,579 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:55:23,587 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:55:23,589 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:55:23,592 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:55:23,593 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:55:23,599 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:55:23,601 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:55:23,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:55:23,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:55:23,608 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:55:23,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:55:23,609 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:55:23,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:55:23,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:55:23,611 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:55:23,612 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:55:23,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:55:23,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:55:23,614 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 14:55:23,616 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 14:55:23,637 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:55:23,637 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:55:23,638 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:55:23,639 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:55:23,641 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:55:23,641 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:55:23,642 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:55:23,642 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:55:23,642 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:55:23,642 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:55:23,642 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:55:23,643 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:55:23,643 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:55:23,643 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:55:23,643 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:55:23,643 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:55:23,643 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:55:23,645 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:55:23,645 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:55:23,645 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:55:23,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:55:23,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:55:23,646 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:55:23,646 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:55:23,646 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:55:23,646 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 14:55:23,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:55:23,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:55:23,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:55:23,724 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:55:23,724 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:55:23,725 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array3_false-valid-deref.i [2018-10-10 14:55:24,043 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d8db300/6ee4b76b15f543d9af43701f9d63d51a/FLAG27721e83a [2018-10-10 14:55:24,248 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:55:24,252 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array3_false-valid-deref.i [2018-10-10 14:55:24,258 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d8db300/6ee4b76b15f543d9af43701f9d63d51a/FLAG27721e83a [2018-10-10 14:55:24,272 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d8db300/6ee4b76b15f543d9af43701f9d63d51a [2018-10-10 14:55:24,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:55:24,283 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:55:24,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:55:24,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:55:24,288 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:55:24,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13225131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24, skipping insertion in model container [2018-10-10 14:55:24,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:55:24,324 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:55:24,492 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:55:24,498 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:55:24,527 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:55:24,554 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:55:24,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24 WrapperNode [2018-10-10 14:55:24,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:55:24,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:55:24,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:55:24,556 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:55:24,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:55:24,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:55:24,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:55:24,604 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:55:24,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (1/1) ... [2018-10-10 14:55:24,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:55:24,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:55:24,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:55:24,629 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:55:24,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (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 14:55:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:55:24,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:55:25,317 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:55:25,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:55:25 BoogieIcfgContainer [2018-10-10 14:55:25,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:55:25,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:55:25,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:55:25,322 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:55:25,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:55:24" (1/3) ... [2018-10-10 14:55:25,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0972d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:55:25, skipping insertion in model container [2018-10-10 14:55:25,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:55:24" (2/3) ... [2018-10-10 14:55:25,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0972d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:55:25, skipping insertion in model container [2018-10-10 14:55:25,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:55:25" (3/3) ... [2018-10-10 14:55:25,326 INFO L112 eAbstractionObserver]: Analyzing ICFG array3_false-valid-deref.i [2018-10-10 14:55:25,336 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:55:25,343 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-10-10 14:55:25,358 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-10-10 14:55:25,387 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:55:25,388 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:55:25,389 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:55:25,389 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:55:25,389 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:55:25,389 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:55:25,390 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:55:25,390 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:55:25,390 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:55:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-10-10 14:55:25,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-10 14:55:25,417 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:25,418 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] [2018-10-10 14:55:25,421 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:25,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:25,427 INFO L82 PathProgramCache]: Analyzing trace with hash 970715665, now seen corresponding path program 1 times [2018-10-10 14:55:25,428 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:25,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:25,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:25,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:25,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:25,555 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 14:55:25,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:55:25,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:55:25,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-10 14:55:25,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-10 14:55:25,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:55:25,578 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2018-10-10 14:55:25,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:55:25,598 INFO L93 Difference]: Finished difference Result 83 states and 85 transitions. [2018-10-10 14:55:25,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-10 14:55:25,600 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 28 [2018-10-10 14:55:25,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:55:25,612 INFO L225 Difference]: With dead ends: 83 [2018-10-10 14:55:25,612 INFO L226 Difference]: Without dead ends: 77 [2018-10-10 14:55:25,614 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:55:25,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-10-10 14:55:25,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-10-10 14:55:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-10-10 14:55:25,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2018-10-10 14:55:25,654 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 28 [2018-10-10 14:55:25,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:55:25,655 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2018-10-10 14:55:25,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-10 14:55:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2018-10-10 14:55:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-10 14:55:25,656 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:25,657 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] [2018-10-10 14:55:25,657 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:25,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:25,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1376165433, now seen corresponding path program 1 times [2018-10-10 14:55:25,658 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:25,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:25,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:25,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:25,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:25,720 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 14:55:25,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:55:25,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:55:25,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:55:25,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:55:25,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:55:25,724 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand 3 states. [2018-10-10 14:55:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:55:25,904 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2018-10-10 14:55:25,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:55:25,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-10-10 14:55:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:55:25,907 INFO L225 Difference]: With dead ends: 129 [2018-10-10 14:55:25,907 INFO L226 Difference]: Without dead ends: 129 [2018-10-10 14:55:25,908 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:55:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-10-10 14:55:25,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 93. [2018-10-10 14:55:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-10-10 14:55:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2018-10-10 14:55:25,920 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 29 [2018-10-10 14:55:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:55:25,920 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2018-10-10 14:55:25,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:55:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2018-10-10 14:55:25,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-10 14:55:25,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:25,922 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] [2018-10-10 14:55:25,922 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:25,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:25,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1339039888, now seen corresponding path program 1 times [2018-10-10 14:55:25,923 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:25,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:25,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:25,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:25,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:26,117 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 14:55:26,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:55:26,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:55:26,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:55:26,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:55:26,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:55:26,122 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand 5 states. [2018-10-10 14:55:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:55:26,366 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2018-10-10 14:55:26,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:55:26,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-10-10 14:55:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:55:26,368 INFO L225 Difference]: With dead ends: 96 [2018-10-10 14:55:26,368 INFO L226 Difference]: Without dead ends: 96 [2018-10-10 14:55:26,369 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:55:26,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-10-10 14:55:26,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2018-10-10 14:55:26,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-10-10 14:55:26,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2018-10-10 14:55:26,378 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 29 [2018-10-10 14:55:26,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:55:26,378 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2018-10-10 14:55:26,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:55:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2018-10-10 14:55:26,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-10 14:55:26,380 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:26,380 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] [2018-10-10 14:55:26,380 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:26,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:26,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1439436501, now seen corresponding path program 1 times [2018-10-10 14:55:26,381 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:26,381 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:26,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:26,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:26,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:26,706 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 14:55:26,763 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 14:55:26,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:55:26,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:55:26,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:55:26,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:55:26,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:55:26,765 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand 8 states. [2018-10-10 14:55:27,251 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-10-10 14:55:27,695 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-10 14:55:27,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:55:27,795 INFO L93 Difference]: Finished difference Result 199 states and 205 transitions. [2018-10-10 14:55:27,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 14:55:27,798 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2018-10-10 14:55:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:55:27,800 INFO L225 Difference]: With dead ends: 199 [2018-10-10 14:55:27,800 INFO L226 Difference]: Without dead ends: 199 [2018-10-10 14:55:27,801 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:55:27,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-10-10 14:55:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 98. [2018-10-10 14:55:27,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-10-10 14:55:27,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 103 transitions. [2018-10-10 14:55:27,828 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 103 transitions. Word has length 30 [2018-10-10 14:55:27,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:55:27,829 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 103 transitions. [2018-10-10 14:55:27,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:55:27,829 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 103 transitions. [2018-10-10 14:55:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-10 14:55:27,831 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:27,832 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 14:55:27,832 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:27,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:27,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1380825149, now seen corresponding path program 1 times [2018-10-10 14:55:27,833 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:27,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:27,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:27,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:27,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:55:28,131 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:55:28,132 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 14:55:28,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:28,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:55:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:55:28,273 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:55:28,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-10-10 14:55:28,307 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/array3_false-valid-deref.i_5.bpl [2018-10-10 14:55:28,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:55:28,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:55:28,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:55:28,314 INFO L87 Difference]: Start difference. First operand 98 states and 103 transitions. Second operand 7 states. [2018-10-10 14:55:28,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:55:28,542 INFO L93 Difference]: Finished difference Result 144 states and 146 transitions. [2018-10-10 14:55:28,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:55:28,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2018-10-10 14:55:28,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:55:28,545 INFO L225 Difference]: With dead ends: 144 [2018-10-10 14:55:28,545 INFO L226 Difference]: Without dead ends: 144 [2018-10-10 14:55:28,546 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:55:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-10-10 14:55:28,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 109. [2018-10-10 14:55:28,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-10-10 14:55:28,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 114 transitions. [2018-10-10 14:55:28,553 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 114 transitions. Word has length 46 [2018-10-10 14:55:28,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:55:28,554 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 114 transitions. [2018-10-10 14:55:28,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:55:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 114 transitions. [2018-10-10 14:55:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-10 14:55:28,556 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:28,556 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 14:55:28,556 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:28,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:28,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1006798623, now seen corresponding path program 1 times [2018-10-10 14:55:28,557 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:28,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:28,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:28,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:28,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:55:28,865 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:55:28,865 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 14:55:28,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:28,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:55:28,930 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 14:55:28,932 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:55:28,949 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 14:55:28,949 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-10-10 14:55:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:55:29,126 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:55:29,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2018-10-10 14:55:29,143 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/array3_false-valid-deref.i_6.bpl [2018-10-10 14:55:29,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 14:55:29,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 14:55:29,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:55:29,146 INFO L87 Difference]: Start difference. First operand 109 states and 114 transitions. Second operand 12 states. [2018-10-10 14:55:29,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:55:29,706 INFO L93 Difference]: Finished difference Result 216 states and 222 transitions. [2018-10-10 14:55:29,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 14:55:29,707 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-10-10 14:55:29,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:55:29,709 INFO L225 Difference]: With dead ends: 216 [2018-10-10 14:55:29,710 INFO L226 Difference]: Without dead ends: 216 [2018-10-10 14:55:29,710 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-10-10 14:55:29,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-10-10 14:55:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 115. [2018-10-10 14:55:29,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-10-10 14:55:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 120 transitions. [2018-10-10 14:55:29,719 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 120 transitions. Word has length 47 [2018-10-10 14:55:29,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:55:29,719 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 120 transitions. [2018-10-10 14:55:29,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 14:55:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 120 transitions. [2018-10-10 14:55:29,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-10 14:55:29,721 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:29,722 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 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] [2018-10-10 14:55:29,722 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:29,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:29,723 INFO L82 PathProgramCache]: Analyzing trace with hash -38904697, now seen corresponding path program 2 times [2018-10-10 14:55:29,723 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:29,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:29,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:29,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:29,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:29,816 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-10-10 14:55:29,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:55:29,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:55:29,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:55:29,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:55:29,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:55:29,818 INFO L87 Difference]: Start difference. First operand 115 states and 120 transitions. Second operand 5 states. [2018-10-10 14:55:29,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:55:29,946 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2018-10-10 14:55:29,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:55:29,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2018-10-10 14:55:29,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:55:29,948 INFO L225 Difference]: With dead ends: 114 [2018-10-10 14:55:29,948 INFO L226 Difference]: Without dead ends: 114 [2018-10-10 14:55:29,949 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:55:29,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-10-10 14:55:29,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-10-10 14:55:29,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-10-10 14:55:29,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2018-10-10 14:55:29,958 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 63 [2018-10-10 14:55:29,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:55:29,958 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2018-10-10 14:55:29,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:55:29,959 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2018-10-10 14:55:29,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-10 14:55:29,960 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:29,960 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 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] [2018-10-10 14:55:29,961 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:29,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:29,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1206045514, now seen corresponding path program 1 times [2018-10-10 14:55:29,961 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:29,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:29,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:29,963 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-10 14:55:29,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:55:30,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:55:30,276 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:55:30,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:30,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:55:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:55:30,394 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:55:30,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-10-10 14:55:30,408 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/array3_false-valid-deref.i_8.bpl [2018-10-10 14:55:30,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:55:30,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:55:30,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:55:30,410 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand 9 states. [2018-10-10 14:55:30,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:55:30,547 INFO L93 Difference]: Finished difference Result 159 states and 161 transitions. [2018-10-10 14:55:30,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:55:30,548 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2018-10-10 14:55:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:55:30,549 INFO L225 Difference]: With dead ends: 159 [2018-10-10 14:55:30,549 INFO L226 Difference]: Without dead ends: 159 [2018-10-10 14:55:30,549 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:55:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-10-10 14:55:30,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 125. [2018-10-10 14:55:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-10-10 14:55:30,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 129 transitions. [2018-10-10 14:55:30,555 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 129 transitions. Word has length 64 [2018-10-10 14:55:30,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:55:30,556 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 129 transitions. [2018-10-10 14:55:30,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:55:30,556 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 129 transitions. [2018-10-10 14:55:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-10 14:55:30,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:55:30,558 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2018-10-10 14:55:30,558 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:55:30,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:55:30,559 INFO L82 PathProgramCache]: Analyzing trace with hash -55153643, now seen corresponding path program 2 times [2018-10-10 14:55:30,559 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:55:30,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:55:30,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:30,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:55:30,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:55:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:55:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:55:30,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:55:30,944 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:55:30,954 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:55:30,981 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-10 14:55:30,981 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:55:30,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:55:30,998 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 14:55:30,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:55:31,079 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 14:55:31,080 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-10-10 14:55:31,248 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:55:31,269 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:55:31,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2018-10-10 14:55:31,270 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-10 14:55:31,274 WARN L205 ceAbstractionStarter]: Timeout [2018-10-10 14:55:31,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:55:31 BoogieIcfgContainer [2018-10-10 14:55:31,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:55:31,275 INFO L168 Benchmark]: Toolchain (without parser) took 6993.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.2 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -362.2 MB). Peak memory consumption was 366.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:55:31,276 INFO L168 Benchmark]: CDTParser took 0.20 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 14:55:31,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.37 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 14:55:31,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.41 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 14:55:31,278 INFO L168 Benchmark]: Boogie Preprocessor took 24.71 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 14:55:31,279 INFO L168 Benchmark]: RCFGBuilder took 689.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-10-10 14:55:31,280 INFO L168 Benchmark]: TraceAbstraction took 5955.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 396.4 MB). Peak memory consumption was 396.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:55:31,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 271.37 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 47.41 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 24.71 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 689.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5955.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 396.4 MB). Peak memory consumption was 396.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: 9]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 9). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 5 error locations. TIMEOUT Result, 5.8s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 566 SDtfs, 2429 SDslu, 966 SDs, 0 SdLazy, 443 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 158 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=8, 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 311 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 493 NumberOfCodeBlocks, 493 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 84952 SizeOfPredicates, 17 NumberOfNonLiveVariables, 274 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 21/83 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Received shutdown request...