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/array03-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:41:29,474 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:41:29,476 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:41:29,489 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:41:29,490 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:41:29,491 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:41:29,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:41:29,495 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:41:29,497 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:41:29,499 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:41:29,501 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:41:29,501 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:41:29,502 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:41:29,504 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:41:29,505 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:41:29,507 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:41:29,508 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:41:29,517 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:41:29,523 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:41:29,525 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:41:29,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:41:29,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:41:29,533 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:41:29,533 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:41:29,534 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:41:29,535 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:41:29,537 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:41:29,537 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:41:29,538 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:41:29,539 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:41:29,539 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:41:29,544 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 14:41:29,549 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 14:41:29,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:41:29,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:41:29,581 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:41:29,582 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:41:29,582 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:41:29,582 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:41:29,582 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:41:29,583 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:41:29,583 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:41:29,583 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:41:29,583 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:41:29,583 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:41:29,583 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:41:29,584 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:41:29,584 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:41:29,584 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:41:29,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:41:29,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:41:29,585 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:41:29,585 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:41:29,585 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:41:29,585 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:41:29,585 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:41:29,586 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:41:29,586 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:41:29,586 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 14:41:29,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:41:29,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:41:29,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:41:29,693 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:41:29,694 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:41:29,694 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:29,991 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6cc8e59/471bbd33eed14f3b9d02d1f4222e53e4/FLAGf0be153e5 [2018-10-10 14:41:30,247 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:41:30,248 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:30,261 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6cc8e59/471bbd33eed14f3b9d02d1f4222e53e4/FLAGf0be153e5 [2018-10-10 14:41:30,276 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6cc8e59/471bbd33eed14f3b9d02d1f4222e53e4 [2018-10-10 14:41:30,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:41:30,287 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:41:30,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:30,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:41:30,292 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:41:30,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b8a38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30, skipping insertion in model container [2018-10-10 14:41:30,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:41:30,353 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:41:30,570 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:30,581 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:41:30,644 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:30,718 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:41:30,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30 WrapperNode [2018-10-10 14:41:30,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:30,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:30,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:41:30,720 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:41:30,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:30,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:41:30,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:41:30,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:41:30,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (1/1) ... [2018-10-10 14:41:30,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:41:30,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:41:30,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:41:30,982 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:41:30,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (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 14:41:31,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:41:31,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:41:31,942 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:41:31,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:31 BoogieIcfgContainer [2018-10-10 14:41:31,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:41:31,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:41:31,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:41:31,948 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:41:31,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:41:30" (1/3) ... [2018-10-10 14:41:31,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7b014e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:31, skipping insertion in model container [2018-10-10 14:41:31,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:30" (2/3) ... [2018-10-10 14:41:31,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7b014e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:31, skipping insertion in model container [2018-10-10 14:41:31,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:31" (3/3) ... [2018-10-10 14:41:31,952 INFO L112 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:31,960 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:41:31,968 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-10-10 14:41:31,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2018-10-10 14:41:32,016 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:41:32,017 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:41:32,017 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:41:32,017 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:41:32,017 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:41:32,018 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:41:32,018 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:41:32,018 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:41:32,018 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:41:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2018-10-10 14:41:32,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-10 14:41:32,052 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:32,053 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] [2018-10-10 14:41:32,056 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:32,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:32,063 INFO L82 PathProgramCache]: Analyzing trace with hash -655037225, now seen corresponding path program 1 times [2018-10-10 14:41:32,065 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:32,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:32,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:32,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:32,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:32,409 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 14:41:32,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:32,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:41:32,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:41:32,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:41:32,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:41:32,438 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 8 states. [2018-10-10 14:41:33,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:33,381 INFO L93 Difference]: Finished difference Result 161 states and 166 transitions. [2018-10-10 14:41:33,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:41:33,382 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2018-10-10 14:41:33,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:33,396 INFO L225 Difference]: With dead ends: 161 [2018-10-10 14:41:33,396 INFO L226 Difference]: Without dead ends: 156 [2018-10-10 14:41:33,398 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:41:33,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-10-10 14:41:33,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2018-10-10 14:41:33,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-10-10 14:41:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2018-10-10 14:41:33,443 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 39 [2018-10-10 14:41:33,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:33,444 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2018-10-10 14:41:33,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:41:33,444 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2018-10-10 14:41:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-10 14:41:33,445 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:33,446 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] [2018-10-10 14:41:33,446 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:33,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:33,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1168682590, now seen corresponding path program 1 times [2018-10-10 14:41:33,447 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:33,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:33,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:33,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:33,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:33,823 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 14:41:33,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:33,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 14:41:33,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 14:41:33,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 14:41:33,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:41:33,827 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand 12 states. [2018-10-10 14:41:34,733 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-10 14:41:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:35,263 INFO L93 Difference]: Finished difference Result 252 states and 259 transitions. [2018-10-10 14:41:35,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 14:41:35,263 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-10-10 14:41:35,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:35,267 INFO L225 Difference]: With dead ends: 252 [2018-10-10 14:41:35,268 INFO L226 Difference]: Without dead ends: 252 [2018-10-10 14:41:35,269 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2018-10-10 14:41:35,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-10-10 14:41:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 225. [2018-10-10 14:41:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-10-10 14:41:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 235 transitions. [2018-10-10 14:41:35,288 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 235 transitions. Word has length 40 [2018-10-10 14:41:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:35,289 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 235 transitions. [2018-10-10 14:41:35,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 14:41:35,289 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 235 transitions. [2018-10-10 14:41:35,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-10 14:41:35,291 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:35,291 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] [2018-10-10 14:41:35,292 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:35,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:35,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1211211523, now seen corresponding path program 1 times [2018-10-10 14:41:35,292 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:35,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:35,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:35,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:35,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:35,435 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 14:41:35,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:35,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:41:35,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:41:35,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:41:35,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:41:35,437 INFO L87 Difference]: Start difference. First operand 225 states and 235 transitions. Second operand 6 states. [2018-10-10 14:41:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:35,562 INFO L93 Difference]: Finished difference Result 242 states and 249 transitions. [2018-10-10 14:41:35,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:41:35,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-10-10 14:41:35,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:35,570 INFO L225 Difference]: With dead ends: 242 [2018-10-10 14:41:35,570 INFO L226 Difference]: Without dead ends: 242 [2018-10-10 14:41:35,571 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:41:35,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-10-10 14:41:35,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 225. [2018-10-10 14:41:35,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-10-10 14:41:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 234 transitions. [2018-10-10 14:41:35,585 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 234 transitions. Word has length 44 [2018-10-10 14:41:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:35,586 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 234 transitions. [2018-10-10 14:41:35,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:41:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2018-10-10 14:41:35,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-10 14:41:35,588 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:35,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:35,589 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:35,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:35,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1008697063, now seen corresponding path program 1 times [2018-10-10 14:41:35,590 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:35,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:35,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:35,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:35,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:35,740 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 14:41:35,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:35,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:41:35,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:41:35,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:41:35,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:41:35,742 INFO L87 Difference]: Start difference. First operand 225 states and 234 transitions. Second operand 8 states. [2018-10-10 14:41:36,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:36,183 INFO L93 Difference]: Finished difference Result 266 states and 275 transitions. [2018-10-10 14:41:36,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:41:36,184 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2018-10-10 14:41:36,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:36,187 INFO L225 Difference]: With dead ends: 266 [2018-10-10 14:41:36,187 INFO L226 Difference]: Without dead ends: 266 [2018-10-10 14:41:36,187 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:41:36,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-10-10 14:41:36,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 223. [2018-10-10 14:41:36,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-10-10 14:41:36,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 231 transitions. [2018-10-10 14:41:36,199 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 231 transitions. Word has length 66 [2018-10-10 14:41:36,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:36,200 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 231 transitions. [2018-10-10 14:41:36,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:41:36,200 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 231 transitions. [2018-10-10 14:41:36,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-10 14:41:36,203 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:36,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:36,204 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:36,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:36,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1204838075, now seen corresponding path program 1 times [2018-10-10 14:41:36,204 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:36,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:36,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:36,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:36,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:36,534 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 14:41:36,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:36,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 14:41:36,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 14:41:36,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 14:41:36,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:41:36,536 INFO L87 Difference]: Start difference. First operand 223 states and 231 transitions. Second operand 12 states. [2018-10-10 14:41:37,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:37,465 INFO L93 Difference]: Finished difference Result 279 states and 287 transitions. [2018-10-10 14:41:37,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 14:41:37,466 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2018-10-10 14:41:37,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:37,468 INFO L225 Difference]: With dead ends: 279 [2018-10-10 14:41:37,469 INFO L226 Difference]: Without dead ends: 279 [2018-10-10 14:41:37,470 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2018-10-10 14:41:37,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-10-10 14:41:37,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 229. [2018-10-10 14:41:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-10-10 14:41:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 236 transitions. [2018-10-10 14:41:37,479 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 236 transitions. Word has length 67 [2018-10-10 14:41:37,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:37,480 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 236 transitions. [2018-10-10 14:41:37,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 14:41:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 236 transitions. [2018-10-10 14:41:37,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-10 14:41:37,486 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:37,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:37,487 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:37,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:37,488 INFO L82 PathProgramCache]: Analyzing trace with hash -643966515, now seen corresponding path program 1 times [2018-10-10 14:41:37,488 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:37,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:37,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:37,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:37,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:38,031 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 14:41:38,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:41:38,031 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 14:41:38,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:38,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:38,157 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 14:41:38,159 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:38,175 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 14:41:38,176 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-10-10 14:41:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:38,739 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:41:38,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 17 [2018-10-10 14:41:38,788 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/array03-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-10 14:41:38,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-10 14:41:38,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-10 14:41:38,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-10-10 14:41:38,793 INFO L87 Difference]: Start difference. First operand 229 states and 236 transitions. Second operand 18 states. [2018-10-10 14:41:39,270 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-10 14:41:39,934 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-10-10 14:41:41,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:41,043 INFO L93 Difference]: Finished difference Result 247 states and 254 transitions. [2018-10-10 14:41:41,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-10 14:41:41,044 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 82 [2018-10-10 14:41:41,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:41,045 INFO L225 Difference]: With dead ends: 247 [2018-10-10 14:41:41,045 INFO L226 Difference]: Without dead ends: 247 [2018-10-10 14:41:41,046 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 73 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2018-10-10 14:41:41,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-10-10 14:41:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 224. [2018-10-10 14:41:41,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-10-10 14:41:41,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 231 transitions. [2018-10-10 14:41:41,054 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 231 transitions. Word has length 82 [2018-10-10 14:41:41,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:41,054 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 231 transitions. [2018-10-10 14:41:41,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-10 14:41:41,054 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 231 transitions. [2018-10-10 14:41:41,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-10 14:41:41,058 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:41,059 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, 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 14:41:41,059 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:41,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:41,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1035303666, now seen corresponding path program 1 times [2018-10-10 14:41:41,060 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:41,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:41,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:41,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:41,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:41,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:41:41,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:41,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:41:41,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:41:41,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:41:41,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:41:41,276 INFO L87 Difference]: Start difference. First operand 224 states and 231 transitions. Second operand 9 states. [2018-10-10 14:41:41,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:41,538 INFO L93 Difference]: Finished difference Result 223 states and 230 transitions. [2018-10-10 14:41:41,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-10 14:41:41,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2018-10-10 14:41:41,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:41,540 INFO L225 Difference]: With dead ends: 223 [2018-10-10 14:41:41,540 INFO L226 Difference]: Without dead ends: 214 [2018-10-10 14:41:41,540 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2018-10-10 14:41:41,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-10-10 14:41:41,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-10-10 14:41:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-10-10 14:41:41,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 221 transitions. [2018-10-10 14:41:41,545 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 221 transitions. Word has length 86 [2018-10-10 14:41:41,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:41,546 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 221 transitions. [2018-10-10 14:41:41,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:41:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 221 transitions. [2018-10-10 14:41:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-10 14:41:41,548 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:41,549 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:41,549 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:41,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:41,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1771734508, now seen corresponding path program 1 times [2018-10-10 14:41:41,550 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:41,550 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:41,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:41,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:41,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:41,901 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 14:41:41,901 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:41:41,902 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 14:41:41,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:41,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:41,980 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 14:41:41,981 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:42,053 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 14:41:42,054 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-10-10 14:41:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:42,565 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:41:42,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 17 [2018-10-10 14:41:42,583 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/array03-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-10 14:41:42,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-10 14:41:42,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-10 14:41:42,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-10-10 14:41:42,585 INFO L87 Difference]: Start difference. First operand 214 states and 221 transitions. Second operand 18 states. [2018-10-10 14:41:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:44,003 INFO L93 Difference]: Finished difference Result 294 states and 304 transitions. [2018-10-10 14:41:44,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 14:41:44,005 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 109 [2018-10-10 14:41:44,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:44,006 INFO L225 Difference]: With dead ends: 294 [2018-10-10 14:41:44,006 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 14:41:44,007 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 100 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=296, Invalid=760, Unknown=0, NotChecked=0, Total=1056 [2018-10-10 14:41:44,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 14:41:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 14:41:44,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 14:41:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 14:41:44,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2018-10-10 14:41:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:44,008 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 14:41:44,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-10 14:41:44,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 14:41:44,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 14:41:44,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:41:44 BoogieIcfgContainer [2018-10-10 14:41:44,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:41:44,016 INFO L168 Benchmark]: Toolchain (without parser) took 13729.45 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 906.5 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -532.1 MB). Peak memory consumption was 374.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:44,017 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 14:41:44,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.21 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 14:41:44,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.78 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 14:41:44,019 INFO L168 Benchmark]: Boogie Preprocessor took 187.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -856.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:44,020 INFO L168 Benchmark]: RCFGBuilder took 961.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 42.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:44,020 INFO L168 Benchmark]: TraceAbstraction took 12070.74 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 118.5 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 261.5 MB). Peak memory consumption was 380.0 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:44,025 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 431.21 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 73.78 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 187.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -856.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 961.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 42.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12070.74 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 118.5 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 261.5 MB). Peak memory consumption was 380.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 156 locations, 15 error locations. SAFE Result, 12.0s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 7.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1249 SDtfs, 10345 SDslu, 3163 SDs, 0 SdLazy, 1687 SolverSat, 237 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 181 SyntacticMatches, 12 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=5, 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, 8 MinimizatonAttempts, 170 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 724 NumberOfCodeBlocks, 724 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 714 ConstructedInterpolants, 4 QuantifiedInterpolants, 532899 SizeOfPredicates, 36 NumberOfNonLiveVariables, 363 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 6/84 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...