java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:52:52,301 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:52:52,303 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:52:52,316 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:52:52,316 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:52:52,317 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:52:52,319 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:52:52,321 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:52:52,323 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:52:52,324 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:52:52,325 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:52:52,325 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:52:52,326 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:52:52,327 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:52:52,329 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:52:52,329 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:52:52,330 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:52:52,332 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:52:52,337 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:52:52,339 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:52:52,340 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:52:52,344 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:52:52,346 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:52:52,347 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:52:52,347 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:52:52,348 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:52:52,349 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:52:52,350 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:52:52,350 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:52:52,351 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:52:52,352 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:52:52,353 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:52:52,353 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:52:52,353 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:52:52,354 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:52:52,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:52:52,355 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 14:52:52,374 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:52:52,375 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:52:52,376 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:52:52,376 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:52:52,377 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:52:52,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:52:52,377 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:52:52,377 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:52:52,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:52:52,378 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:52:52,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:52:52,378 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:52:52,378 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:52:52,378 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:52:52,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:52:52,379 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:52:52,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:52:52,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:52:52,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:52:52,381 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:52:52,381 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:52:52,381 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:52:52,381 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:52:52,382 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:52:52,382 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:52:52,382 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 14:52:52,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:52:52,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:52:52,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:52:52,472 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:52:52,474 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:52:52,474 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c [2018-10-10 14:52:52,806 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b471332c/a91f9bb1786f4e35a315e320ecb21529/FLAGf58b3491b [2018-10-10 14:52:53,027 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:52:53,028 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c [2018-10-10 14:52:53,035 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b471332c/a91f9bb1786f4e35a315e320ecb21529/FLAGf58b3491b [2018-10-10 14:52:53,051 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b471332c/a91f9bb1786f4e35a315e320ecb21529 [2018-10-10 14:52:53,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:52:53,064 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:52:53,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:52:53,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:52:53,069 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:52:53,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a812536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53, skipping insertion in model container [2018-10-10 14:52:53,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:52:53,113 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:52:53,314 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:52:53,327 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:52:53,353 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:52:53,373 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:52:53,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53 WrapperNode [2018-10-10 14:52:53,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:52:53,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:52:53,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:52:53,375 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:52:53,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:52:53,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:52:53,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:52:53,425 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:52:53,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (1/1) ... [2018-10-10 14:52:53,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:52:53,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:52:53,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:52:53,483 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:52:53,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (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 14:52:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:52:53,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:52:54,484 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:52:54,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:52:54 BoogieIcfgContainer [2018-10-10 14:52:54,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:52:54,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:52:54,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:52:54,490 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:52:54,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:52:53" (1/3) ... [2018-10-10 14:52:54,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290ca9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:52:54, skipping insertion in model container [2018-10-10 14:52:54,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:53" (2/3) ... [2018-10-10 14:52:54,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290ca9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:52:54, skipping insertion in model container [2018-10-10 14:52:54,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:52:54" (3/3) ... [2018-10-10 14:52:54,495 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_false-valid-deref-write.c [2018-10-10 14:52:54,506 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:52:54,516 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-10 14:52:54,537 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-10 14:52:54,570 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:52:54,571 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:52:54,572 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:52:54,572 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:52:54,572 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:52:54,575 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:52:54,575 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:52:54,576 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:52:54,576 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:52:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2018-10-10 14:52:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-10 14:52:54,630 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:54,631 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] [2018-10-10 14:52:54,633 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:54,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:54,640 INFO L82 PathProgramCache]: Analyzing trace with hash -2128082017, now seen corresponding path program 1 times [2018-10-10 14:52:54,643 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:54,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:54,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:54,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:54,810 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 14:52:54,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:54,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:52:54,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-10 14:52:54,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-10 14:52:54,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:52:54,837 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2018-10-10 14:52:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:54,862 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2018-10-10 14:52:54,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-10 14:52:54,864 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 41 [2018-10-10 14:52:54,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:54,877 INFO L225 Difference]: With dead ends: 144 [2018-10-10 14:52:54,878 INFO L226 Difference]: Without dead ends: 139 [2018-10-10 14:52:54,880 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 14:52:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-10-10 14:52:54,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-10-10 14:52:54,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-10-10 14:52:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 142 transitions. [2018-10-10 14:52:54,929 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 142 transitions. Word has length 41 [2018-10-10 14:52:54,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:54,930 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 142 transitions. [2018-10-10 14:52:54,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-10 14:52:54,930 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 142 transitions. [2018-10-10 14:52:54,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-10 14:52:54,931 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:54,931 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] [2018-10-10 14:52:54,932 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:54,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:54,933 INFO L82 PathProgramCache]: Analyzing trace with hash -216081668, now seen corresponding path program 1 times [2018-10-10 14:52:54,933 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:54,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:54,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:54,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:55,046 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 14:52:55,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:55,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:52:55,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:52:55,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:52:55,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:52:55,050 INFO L87 Difference]: Start difference. First operand 139 states and 142 transitions. Second operand 3 states. [2018-10-10 14:52:55,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:55,227 INFO L93 Difference]: Finished difference Result 226 states and 230 transitions. [2018-10-10 14:52:55,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:52:55,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-10-10 14:52:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:55,231 INFO L225 Difference]: With dead ends: 226 [2018-10-10 14:52:55,231 INFO L226 Difference]: Without dead ends: 226 [2018-10-10 14:52:55,232 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 14:52:55,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-10-10 14:52:55,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 143. [2018-10-10 14:52:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-10-10 14:52:55,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 146 transitions. [2018-10-10 14:52:55,249 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 146 transitions. Word has length 42 [2018-10-10 14:52:55,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:55,250 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 146 transitions. [2018-10-10 14:52:55,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:52:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 146 transitions. [2018-10-10 14:52:55,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-10 14:52:55,251 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:55,252 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:52:55,252 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:55,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:55,253 INFO L82 PathProgramCache]: Analyzing trace with hash 942852897, now seen corresponding path program 1 times [2018-10-10 14:52:55,253 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:55,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:55,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:55,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:55,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:55,333 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 14:52:55,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:55,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:52:55,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:52:55,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:52:55,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:52:55,335 INFO L87 Difference]: Start difference. First operand 143 states and 146 transitions. Second operand 3 states. [2018-10-10 14:52:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:55,413 INFO L93 Difference]: Finished difference Result 243 states and 249 transitions. [2018-10-10 14:52:55,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:52:55,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-10-10 14:52:55,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:55,416 INFO L225 Difference]: With dead ends: 243 [2018-10-10 14:52:55,416 INFO L226 Difference]: Without dead ends: 243 [2018-10-10 14:52:55,417 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:52:55,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-10-10 14:52:55,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 146. [2018-10-10 14:52:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-10-10 14:52:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2018-10-10 14:52:55,428 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 48 [2018-10-10 14:52:55,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:55,429 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2018-10-10 14:52:55,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:52:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2018-10-10 14:52:55,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-10 14:52:55,431 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:55,431 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] [2018-10-10 14:52:55,432 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:55,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:55,432 INFO L82 PathProgramCache]: Analyzing trace with hash -555367937, now seen corresponding path program 1 times [2018-10-10 14:52:55,432 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:55,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:55,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:55,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:55,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:55,675 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 14:52:55,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:55,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:52:55,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:52:55,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:52:55,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:55,678 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand 7 states. [2018-10-10 14:52:56,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:56,518 INFO L93 Difference]: Finished difference Result 190 states and 196 transitions. [2018-10-10 14:52:56,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:52:56,519 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-10-10 14:52:56,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:56,520 INFO L225 Difference]: With dead ends: 190 [2018-10-10 14:52:56,521 INFO L226 Difference]: Without dead ends: 190 [2018-10-10 14:52:56,521 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:52:56,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-10-10 14:52:56,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 145. [2018-10-10 14:52:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-10-10 14:52:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 149 transitions. [2018-10-10 14:52:56,542 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 149 transitions. Word has length 51 [2018-10-10 14:52:56,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:56,542 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 149 transitions. [2018-10-10 14:52:56,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:52:56,543 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 149 transitions. [2018-10-10 14:52:56,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-10 14:52:56,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:56,545 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] [2018-10-10 14:52:56,545 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:56,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:56,546 INFO L82 PathProgramCache]: Analyzing trace with hash -36536764, now seen corresponding path program 1 times [2018-10-10 14:52:56,546 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:56,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:56,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:56,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:56,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:56,782 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 14:52:56,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:56,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:52:56,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:52:56,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:52:56,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:52:56,784 INFO L87 Difference]: Start difference. First operand 145 states and 149 transitions. Second operand 10 states. [2018-10-10 14:52:57,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:57,978 INFO L93 Difference]: Finished difference Result 272 states and 280 transitions. [2018-10-10 14:52:57,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 14:52:57,980 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2018-10-10 14:52:57,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:57,982 INFO L225 Difference]: With dead ends: 272 [2018-10-10 14:52:57,982 INFO L226 Difference]: Without dead ends: 272 [2018-10-10 14:52:57,983 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2018-10-10 14:52:57,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-10-10 14:52:57,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 144. [2018-10-10 14:52:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-10-10 14:52:57,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2018-10-10 14:52:57,991 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 52 [2018-10-10 14:52:57,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:57,992 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2018-10-10 14:52:57,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:52:57,992 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2018-10-10 14:52:57,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-10 14:52:57,994 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:57,994 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] [2018-10-10 14:52:57,995 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:57,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:57,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1079302112, now seen corresponding path program 1 times [2018-10-10 14:52:57,995 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:57,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:57,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:57,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:57,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:58,168 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 14:52:58,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:58,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:52:58,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:52:58,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:52:58,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:58,170 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand 7 states. [2018-10-10 14:52:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:58,474 INFO L93 Difference]: Finished difference Result 181 states and 187 transitions. [2018-10-10 14:52:58,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 14:52:58,475 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2018-10-10 14:52:58,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:58,477 INFO L225 Difference]: With dead ends: 181 [2018-10-10 14:52:58,477 INFO L226 Difference]: Without dead ends: 181 [2018-10-10 14:52:58,478 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:52:58,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-10-10 14:52:58,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 143. [2018-10-10 14:52:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-10-10 14:52:58,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 147 transitions. [2018-10-10 14:52:58,486 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 147 transitions. Word has length 55 [2018-10-10 14:52:58,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:58,486 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 147 transitions. [2018-10-10 14:52:58,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:52:58,486 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 147 transitions. [2018-10-10 14:52:58,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-10 14:52:58,490 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:58,490 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] [2018-10-10 14:52:58,491 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:58,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:58,491 INFO L82 PathProgramCache]: Analyzing trace with hash -901372770, now seen corresponding path program 1 times [2018-10-10 14:52:58,491 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:58,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:58,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:58,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:58,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:58,604 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 14:52:58,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:58,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:52:58,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:52:58,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:52:58,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:52:58,607 INFO L87 Difference]: Start difference. First operand 143 states and 147 transitions. Second operand 6 states. [2018-10-10 14:52:58,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:58,757 INFO L93 Difference]: Finished difference Result 240 states and 245 transitions. [2018-10-10 14:52:58,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:52:58,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-10-10 14:52:58,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:58,761 INFO L225 Difference]: With dead ends: 240 [2018-10-10 14:52:58,762 INFO L226 Difference]: Without dead ends: 240 [2018-10-10 14:52:58,763 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:52:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-10-10 14:52:58,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 154. [2018-10-10 14:52:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-10 14:52:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2018-10-10 14:52:58,768 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 56 [2018-10-10 14:52:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:58,769 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2018-10-10 14:52:58,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:52:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2018-10-10 14:52:58,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-10 14:52:58,773 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:58,775 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:52:58,775 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:58,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:58,776 INFO L82 PathProgramCache]: Analyzing trace with hash 2108114642, now seen corresponding path program 1 times [2018-10-10 14:52:58,776 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:58,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:58,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:58,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:58,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:59,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:52:59,003 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:52:59,004 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 14:52:59,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:59,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:52:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:52:59,124 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:52:59,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-10 14:52:59,163 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_8.bpl [2018-10-10 14:52:59,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:52:59,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:52:59,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:52:59,169 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 5 states. [2018-10-10 14:52:59,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:59,368 INFO L93 Difference]: Finished difference Result 346 states and 355 transitions. [2018-10-10 14:52:59,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:52:59,369 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2018-10-10 14:52:59,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:59,372 INFO L225 Difference]: With dead ends: 346 [2018-10-10 14:52:59,372 INFO L226 Difference]: Without dead ends: 346 [2018-10-10 14:52:59,373 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-10-10 14:52:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 172. [2018-10-10 14:52:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-10-10 14:52:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 177 transitions. [2018-10-10 14:52:59,380 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 177 transitions. Word has length 66 [2018-10-10 14:52:59,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:59,380 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 177 transitions. [2018-10-10 14:52:59,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:52:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 177 transitions. [2018-10-10 14:52:59,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-10 14:52:59,382 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:59,382 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] [2018-10-10 14:52:59,383 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:52:59,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:59,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1067425969, now seen corresponding path program 1 times [2018-10-10 14:52:59,383 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:59,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:59,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:59,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:59,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:59,686 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 14:52:59,687 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:52:59,687 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 14:52:59,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:59,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:52:59,864 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 14:52:59,895 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:52:59,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-10-10 14:52:59,916 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl [2018-10-10 14:52:59,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:52:59,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:52:59,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:52:59,918 INFO L87 Difference]: Start difference. First operand 172 states and 177 transitions. Second operand 14 states. [2018-10-10 14:53:00,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:00,561 INFO L93 Difference]: Finished difference Result 376 states and 382 transitions. [2018-10-10 14:53:00,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 14:53:00,564 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 74 [2018-10-10 14:53:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:00,566 INFO L225 Difference]: With dead ends: 376 [2018-10-10 14:53:00,566 INFO L226 Difference]: Without dead ends: 376 [2018-10-10 14:53:00,567 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2018-10-10 14:53:00,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-10-10 14:53:00,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 190. [2018-10-10 14:53:00,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-10-10 14:53:00,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 195 transitions. [2018-10-10 14:53:00,573 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 195 transitions. Word has length 74 [2018-10-10 14:53:00,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:00,574 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 195 transitions. [2018-10-10 14:53:00,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:53:00,574 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 195 transitions. [2018-10-10 14:53:00,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-10 14:53:00,576 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:00,576 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:00,577 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:00,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:00,577 INFO L82 PathProgramCache]: Analyzing trace with hash -572483517, now seen corresponding path program 2 times [2018-10-10 14:53:00,577 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:00,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:00,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:00,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:00,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:00,765 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:00,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:00,766 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 14:53:00,774 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:53:00,823 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-10 14:53:00,823 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:53:00,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-10 14:53:01,489 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:01,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2018-10-10 14:53:01,490 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-10 14:53:01,494 WARN L205 ceAbstractionStarter]: Timeout [2018-10-10 14:53:01,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:53:01 BoogieIcfgContainer [2018-10-10 14:53:01,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:53:01,495 INFO L168 Benchmark]: Toolchain (without parser) took 8432.71 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -259.9 MB). Peak memory consumption was 464.2 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:01,497 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:01,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:01,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.81 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:01,499 INFO L168 Benchmark]: Boogie Preprocessor took 57.73 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:01,499 INFO L168 Benchmark]: RCFGBuilder took 1002.37 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -755.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:01,500 INFO L168 Benchmark]: TraceAbstraction took 7008.48 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 485.2 MB). Peak memory consumption was 485.2 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:01,505 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 309.17 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 49.81 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 57.73 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 1002.37 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -755.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7008.48 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 485.2 MB). Peak memory consumption was 485.2 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 10). - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 18). Cancelled while PathProgramDumpController was trying to verify (iteration 10). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 10). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 10). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 10). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 10). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 10). - TimeoutResultAtElement [Line: 23]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 23). Cancelled while PathProgramDumpController was trying to verify (iteration 10). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 8 error locations. TIMEOUT Result, 6.9s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1385 SDtfs, 3485 SDslu, 2543 SDs, 0 SdLazy, 758 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 145 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=9, 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, 9 MinimizatonAttempts, 837 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 625 NumberOfCodeBlocks, 625 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 614 ConstructedInterpolants, 0 QuantifiedInterpolants, 102801 SizeOfPredicates, 8 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 0/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Received shutdown request...