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_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:53:08,464 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:53:08,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:53:08,479 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:53:08,479 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:53:08,480 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:53:08,481 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:53:08,483 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:53:08,493 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:53:08,494 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:53:08,495 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:53:08,497 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:53:08,499 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:53:08,500 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:53:08,501 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:53:08,502 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:53:08,503 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:53:08,507 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:53:08,517 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:53:08,519 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:53:08,523 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:53:08,524 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:53:08,527 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:53:08,529 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:53:08,530 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:53:08,531 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:53:08,533 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:53:08,534 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:53:08,537 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:53:08,539 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:53:08,539 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:53:08,540 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:53:08,540 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:53:08,540 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:53:08,543 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:53:08,544 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:53:08,545 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:53:08,577 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:53:08,577 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:53:08,578 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:53:08,578 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:53:08,581 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:53:08,581 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:53:08,581 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:53:08,582 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:53:08,582 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:53:08,582 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:53:08,582 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:53:08,583 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:53:08,583 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:53:08,583 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:53:08,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:53:08,583 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:53:08,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:53:08,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:53:08,584 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:53:08,584 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:53:08,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:53:08,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:53:08,586 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:53:08,587 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:53:08,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:53:08,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:53:08,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:53:08,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:53:08,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:53:08,693 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:53:08,694 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:53:08,694 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-10-10 14:53:08,977 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0156c60/bae4784943304b54a90bfaa9d86c6a77/FLAG6ffad3c7e [2018-10-10 14:53:09,161 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:53:09,162 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-10-10 14:53:09,169 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0156c60/bae4784943304b54a90bfaa9d86c6a77/FLAG6ffad3c7e [2018-10-10 14:53:09,183 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0156c60/bae4784943304b54a90bfaa9d86c6a77 [2018-10-10 14:53:09,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:53:09,194 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:53:09,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:09,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:53:09,199 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:53:09,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1851f578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09, skipping insertion in model container [2018-10-10 14:53:09,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:53:09,237 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:53:09,448 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:09,460 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:53:09,487 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:09,507 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:53:09,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09 WrapperNode [2018-10-10 14:53:09,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:09,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:09,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:53:09,509 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:53:09,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:09,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:53:09,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:53:09,577 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:53:09,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... [2018-10-10 14:53:09,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:53:09,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:53:09,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:53:09,631 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:53:09,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:53:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:53:09,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:53:10,660 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:53:10,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:10 BoogieIcfgContainer [2018-10-10 14:53:10,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:53:10,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:53:10,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:53:10,665 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:53:10,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:53:09" (1/3) ... [2018-10-10 14:53:10,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7def1841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:10, skipping insertion in model container [2018-10-10 14:53:10,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:09" (2/3) ... [2018-10-10 14:53:10,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7def1841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:10, skipping insertion in model container [2018-10-10 14:53:10,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:10" (3/3) ... [2018-10-10 14:53:10,669 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-10-10 14:53:10,679 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:53:10,688 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-10 14:53:10,705 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-10 14:53:10,733 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:53:10,734 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:53:10,734 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:53:10,734 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:53:10,734 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:53:10,735 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:53:10,735 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:53:10,735 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:53:10,735 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:53:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2018-10-10 14:53:10,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-10 14:53:10,768 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:10,769 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 14:53:10,771 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:10,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:10,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2128082017, now seen corresponding path program 1 times [2018-10-10 14:53:10,779 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:10,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:10,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:10,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:10,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:10,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:10,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:53:10,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-10 14:53:10,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-10 14:53:10,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:53:10,960 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2018-10-10 14:53:10,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:10,987 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2018-10-10 14:53:10,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-10 14:53:10,990 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 41 [2018-10-10 14:53:10,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:11,013 INFO L225 Difference]: With dead ends: 144 [2018-10-10 14:53:11,013 INFO L226 Difference]: Without dead ends: 139 [2018-10-10 14:53:11,017 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 14:53:11,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-10-10 14:53:11,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-10-10 14:53:11,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-10-10 14:53:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 142 transitions. [2018-10-10 14:53:11,067 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 142 transitions. Word has length 41 [2018-10-10 14:53:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:11,067 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 142 transitions. [2018-10-10 14:53:11,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-10 14:53:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 142 transitions. [2018-10-10 14:53:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-10 14:53:11,069 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:11,069 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 14:53:11,070 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:11,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:11,070 INFO L82 PathProgramCache]: Analyzing trace with hash -216081668, now seen corresponding path program 1 times [2018-10-10 14:53:11,071 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:11,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:11,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:11,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:11,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:11,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:53:11,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:53:11,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:53:11,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:53:11,183 INFO L87 Difference]: Start difference. First operand 139 states and 142 transitions. Second operand 3 states. [2018-10-10 14:53:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:11,332 INFO L93 Difference]: Finished difference Result 226 states and 230 transitions. [2018-10-10 14:53:11,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:53:11,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-10-10 14:53:11,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:11,336 INFO L225 Difference]: With dead ends: 226 [2018-10-10 14:53:11,337 INFO L226 Difference]: Without dead ends: 226 [2018-10-10 14:53:11,338 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 14:53:11,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-10-10 14:53:11,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 143. [2018-10-10 14:53:11,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-10-10 14:53:11,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 146 transitions. [2018-10-10 14:53:11,359 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 146 transitions. Word has length 42 [2018-10-10 14:53:11,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:11,361 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 146 transitions. [2018-10-10 14:53:11,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:53:11,361 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 146 transitions. [2018-10-10 14:53:11,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-10 14:53:11,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:11,363 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 14:53:11,364 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:11,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:11,365 INFO L82 PathProgramCache]: Analyzing trace with hash 942852897, now seen corresponding path program 1 times [2018-10-10 14:53:11,365 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:11,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:11,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:11,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:11,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:11,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:53:11,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:11,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:11,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:11,567 INFO L87 Difference]: Start difference. First operand 143 states and 146 transitions. Second operand 7 states. [2018-10-10 14:53:12,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:12,373 INFO L93 Difference]: Finished difference Result 475 states and 484 transitions. [2018-10-10 14:53:12,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 14:53:12,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-10-10 14:53:12,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:12,378 INFO L225 Difference]: With dead ends: 475 [2018-10-10 14:53:12,378 INFO L226 Difference]: Without dead ends: 475 [2018-10-10 14:53:12,379 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:53:12,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2018-10-10 14:53:12,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 157. [2018-10-10 14:53:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-10-10 14:53:12,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 161 transitions. [2018-10-10 14:53:12,396 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 161 transitions. Word has length 48 [2018-10-10 14:53:12,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:12,396 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 161 transitions. [2018-10-10 14:53:12,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:12,397 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 161 transitions. [2018-10-10 14:53:12,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-10 14:53:12,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:12,398 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 14:53:12,399 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:12,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:12,400 INFO L82 PathProgramCache]: Analyzing trace with hash -555367937, now seen corresponding path program 1 times [2018-10-10 14:53:12,400 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:12,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:12,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:12,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:12,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:12,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:12,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:53:12,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:12,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:12,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:12,605 INFO L87 Difference]: Start difference. First operand 157 states and 161 transitions. Second operand 7 states. [2018-10-10 14:53:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:13,278 INFO L93 Difference]: Finished difference Result 159 states and 163 transitions. [2018-10-10 14:53:13,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:53:13,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-10-10 14:53:13,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:13,280 INFO L225 Difference]: With dead ends: 159 [2018-10-10 14:53:13,280 INFO L226 Difference]: Without dead ends: 159 [2018-10-10 14:53:13,281 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 14:53:13,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-10-10 14:53:13,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 156. [2018-10-10 14:53:13,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-10-10 14:53:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2018-10-10 14:53:13,291 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 51 [2018-10-10 14:53:13,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:13,292 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2018-10-10 14:53:13,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:13,292 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2018-10-10 14:53:13,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-10 14:53:13,294 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:13,294 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 14:53:13,294 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:13,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:13,295 INFO L82 PathProgramCache]: Analyzing trace with hash -36536764, now seen corresponding path program 1 times [2018-10-10 14:53:13,295 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:13,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:13,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:13,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:13,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:13,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:13,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:53:13,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:53:13,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:53:13,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:53:13,525 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 10 states. [2018-10-10 14:53:14,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:14,392 INFO L93 Difference]: Finished difference Result 243 states and 249 transitions. [2018-10-10 14:53:14,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 14:53:14,393 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2018-10-10 14:53:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:14,395 INFO L225 Difference]: With dead ends: 243 [2018-10-10 14:53:14,395 INFO L226 Difference]: Without dead ends: 243 [2018-10-10 14:53:14,396 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2018-10-10 14:53:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-10-10 14:53:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 155. [2018-10-10 14:53:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-10-10 14:53:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2018-10-10 14:53:14,405 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 52 [2018-10-10 14:53:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:14,406 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2018-10-10 14:53:14,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:53:14,406 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2018-10-10 14:53:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-10 14:53:14,408 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:14,408 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 14:53:14,409 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:14,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:14,409 INFO L82 PathProgramCache]: Analyzing trace with hash 2108114642, now seen corresponding path program 1 times [2018-10-10 14:53:14,409 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:14,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:14,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:14,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:14,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:14,577 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:14,577 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:14,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:14,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:14,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:14,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-10 14:53:14,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2018-10-10 14:53:14,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:53:14,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:53:14,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:53:14,902 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand 14 states. [2018-10-10 14:53:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:15,699 INFO L93 Difference]: Finished difference Result 322 states and 328 transitions. [2018-10-10 14:53:15,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 14:53:15,699 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 66 [2018-10-10 14:53:15,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:15,701 INFO L225 Difference]: With dead ends: 322 [2018-10-10 14:53:15,701 INFO L226 Difference]: Without dead ends: 322 [2018-10-10 14:53:15,702 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2018-10-10 14:53:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2018-10-10 14:53:15,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 173. [2018-10-10 14:53:15,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-10-10 14:53:15,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 177 transitions. [2018-10-10 14:53:15,710 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 177 transitions. Word has length 66 [2018-10-10 14:53:15,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:15,711 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 177 transitions. [2018-10-10 14:53:15,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:53:15,711 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 177 transitions. [2018-10-10 14:53:15,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-10 14:53:15,713 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:15,713 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] [2018-10-10 14:53:15,714 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:15,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:15,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1281359089, now seen corresponding path program 1 times [2018-10-10 14:53:15,715 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:15,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:15,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:15,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:15,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:15,993 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 14:53:15,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:15,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:53:15,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:15,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:15,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:15,995 INFO L87 Difference]: Start difference. First operand 173 states and 177 transitions. Second operand 7 states. [2018-10-10 14:53:16,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:16,191 INFO L93 Difference]: Finished difference Result 179 states and 183 transitions. [2018-10-10 14:53:16,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 14:53:16,191 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2018-10-10 14:53:16,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:16,193 INFO L225 Difference]: With dead ends: 179 [2018-10-10 14:53:16,193 INFO L226 Difference]: Without dead ends: 179 [2018-10-10 14:53:16,194 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:53:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-10-10 14:53:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 172. [2018-10-10 14:53:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-10-10 14:53:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 176 transitions. [2018-10-10 14:53:16,199 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 176 transitions. Word has length 73 [2018-10-10 14:53:16,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:16,199 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 176 transitions. [2018-10-10 14:53:16,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 176 transitions. [2018-10-10 14:53:16,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-10 14:53:16,202 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:16,202 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 14:53:16,203 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:16,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:16,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1067425969, now seen corresponding path program 1 times [2018-10-10 14:53:16,203 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:16,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:16,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:16,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:16,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:16,498 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 14:53:16,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:16,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 14:53:16,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 14:53:16,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 14:53:16,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:53:16,500 INFO L87 Difference]: Start difference. First operand 172 states and 176 transitions. Second operand 12 states. [2018-10-10 14:53:17,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:17,105 INFO L93 Difference]: Finished difference Result 335 states and 345 transitions. [2018-10-10 14:53:17,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:53:17,106 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2018-10-10 14:53:17,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:17,108 INFO L225 Difference]: With dead ends: 335 [2018-10-10 14:53:17,108 INFO L226 Difference]: Without dead ends: 335 [2018-10-10 14:53:17,109 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2018-10-10 14:53:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-10-10 14:53:17,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 181. [2018-10-10 14:53:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-10-10 14:53:17,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 185 transitions. [2018-10-10 14:53:17,115 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 185 transitions. Word has length 74 [2018-10-10 14:53:17,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:17,115 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 185 transitions. [2018-10-10 14:53:17,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 14:53:17,116 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 185 transitions. [2018-10-10 14:53:17,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-10 14:53:17,117 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:17,118 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, 1, 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 14:53:17,118 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:17,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:17,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1697127679, now seen corresponding path program 1 times [2018-10-10 14:53:17,119 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:17,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:17,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:17,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:17,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:17,278 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:17,278 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:17,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:17,323 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:17,411 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:17,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-10-10 14:53:17,457 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_9.bpl [2018-10-10 14:53:17,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:17,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:17,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:17,463 INFO L87 Difference]: Start difference. First operand 181 states and 185 transitions. Second operand 7 states. [2018-10-10 14:53:17,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:17,569 INFO L93 Difference]: Finished difference Result 275 states and 281 transitions. [2018-10-10 14:53:17,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:53:17,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2018-10-10 14:53:17,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:17,572 INFO L225 Difference]: With dead ends: 275 [2018-10-10 14:53:17,572 INFO L226 Difference]: Without dead ends: 275 [2018-10-10 14:53:17,573 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:53:17,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-10-10 14:53:17,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 192. [2018-10-10 14:53:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-10-10 14:53:17,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 196 transitions. [2018-10-10 14:53:17,578 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 196 transitions. Word has length 91 [2018-10-10 14:53:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:17,579 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 196 transitions. [2018-10-10 14:53:17,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 196 transitions. [2018-10-10 14:53:17,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-10 14:53:17,581 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:17,581 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:17,582 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:17,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:17,582 INFO L82 PathProgramCache]: Analyzing trace with hash 394667361, now seen corresponding path program 1 times [2018-10-10 14:53:17,582 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:17,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:17,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:17,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:17,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:18,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:18,327 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 14:53:18,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:18,407 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:18,515 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:18,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2018-10-10 14:53:18,537 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_10.bpl [2018-10-10 14:53:18,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 14:53:18,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 14:53:18,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:53:18,540 INFO L87 Difference]: Start difference. First operand 192 states and 196 transitions. Second operand 11 states. [2018-10-10 14:53:18,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:18,930 INFO L93 Difference]: Finished difference Result 246 states and 248 transitions. [2018-10-10 14:53:18,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-10 14:53:18,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 105 [2018-10-10 14:53:18,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:18,933 INFO L225 Difference]: With dead ends: 246 [2018-10-10 14:53:18,933 INFO L226 Difference]: Without dead ends: 246 [2018-10-10 14:53:18,935 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2018-10-10 14:53:18,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2018-10-10 14:53:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 192. [2018-10-10 14:53:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-10-10 14:53:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 195 transitions. [2018-10-10 14:53:18,954 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 195 transitions. Word has length 105 [2018-10-10 14:53:18,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:18,954 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 195 transitions. [2018-10-10 14:53:18,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 14:53:18,954 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 195 transitions. [2018-10-10 14:53:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-10 14:53:18,958 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:18,960 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:18,960 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:18,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:18,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1524928555, now seen corresponding path program 1 times [2018-10-10 14:53:18,961 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:18,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:18,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:18,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:18,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-10 14:53:19,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:19,247 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:19,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:19,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-10 14:53:19,475 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:19,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-10 14:53:19,507 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_11.bpl [2018-10-10 14:53:19,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:53:19,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:53:19,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:53:19,514 INFO L87 Difference]: Start difference. First operand 192 states and 195 transitions. Second operand 5 states. [2018-10-10 14:53:19,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:19,764 INFO L93 Difference]: Finished difference Result 304 states and 310 transitions. [2018-10-10 14:53:19,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:53:19,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2018-10-10 14:53:19,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:19,767 INFO L225 Difference]: With dead ends: 304 [2018-10-10 14:53:19,767 INFO L226 Difference]: Without dead ends: 304 [2018-10-10 14:53:19,768 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:19,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-10-10 14:53:19,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 210. [2018-10-10 14:53:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-10-10 14:53:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 214 transitions. [2018-10-10 14:53:19,773 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 214 transitions. Word has length 115 [2018-10-10 14:53:19,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:19,774 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 214 transitions. [2018-10-10 14:53:19,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:53:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 214 transitions. [2018-10-10 14:53:19,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-10 14:53:19,775 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:19,775 INFO L375 BasicCegarLoop]: trace histogram [4, 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, 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] [2018-10-10 14:53:19,776 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:19,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:19,776 INFO L82 PathProgramCache]: Analyzing trace with hash -429337262, now seen corresponding path program 2 times [2018-10-10 14:53:19,776 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:19,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:19,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:19,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:19,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:20,096 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:20,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:20,097 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:20,107 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:53:20,172 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-10 14:53:20,172 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:53:20,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 13 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:20,499 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:20,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-10-10 14:53:20,501 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-10 14:53:20,506 WARN L205 ceAbstractionStarter]: Timeout [2018-10-10 14:53:20,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:53:20 BoogieIcfgContainer [2018-10-10 14:53:20,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:53:20,507 INFO L168 Benchmark]: Toolchain (without parser) took 11313.82 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 870.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -747.5 MB). Peak memory consumption was 123.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:20,510 INFO L168 Benchmark]: CDTParser took 0.21 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 14:53:20,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.36 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:20,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.77 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 14:53:20,512 INFO L168 Benchmark]: Boogie Preprocessor took 51.69 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 14:53:20,512 INFO L168 Benchmark]: RCFGBuilder took 1030.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -753.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:20,513 INFO L168 Benchmark]: TraceAbstraction took 9844.46 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 134.7 MB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -7.6 MB). Peak memory consumption was 127.2 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:20,518 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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. * CACSL2BoogieTranslator took 313.36 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.77 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 51.69 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 1030.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -753.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9844.46 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 134.7 MB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -7.6 MB). Peak memory consumption was 127.2 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 12). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 12). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 12). - 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 12). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 12). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 12). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 12). - TimeoutResultAtElement [Line: 23]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 23). Cancelled while PathProgramDumpController was trying to verify (iteration 12). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 8 error locations. TIMEOUT Result, 9.7s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 4.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1678 SDtfs, 5171 SDslu, 4309 SDs, 0 SdLazy, 1243 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 499 GetRequests, 379 SyntacticMatches, 3 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=11, 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, 11 MinimizatonAttempts, 1033 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1135 NumberOfCodeBlocks, 1135 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1120 ConstructedInterpolants, 0 QuantifiedInterpolants, 252562 SizeOfPredicates, 17 NumberOfNonLiveVariables, 652 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 114/152 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Received shutdown request...