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/ArraysOfVariableLength5_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:53:04,556 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:53:04,558 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:53:04,576 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:53:04,577 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:53:04,578 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:53:04,579 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:53:04,581 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:53:04,582 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:53:04,583 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:53:04,584 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:53:04,585 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:53:04,586 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:53:04,587 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:53:04,588 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:53:04,589 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:53:04,590 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:53:04,592 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:53:04,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:53:04,600 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:53:04,601 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:53:04,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:53:04,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:53:04,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:53:04,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:53:04,612 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:53:04,613 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:53:04,614 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:53:04,617 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:53:04,619 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:53:04,619 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:53:04,620 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:53:04,620 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:53:04,620 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:53:04,622 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:53:04,623 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:53:04,623 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 14:53:04,649 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:53:04,649 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:53:04,651 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:53:04,651 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:53:04,651 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:53:04,652 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:53:04,652 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:53:04,652 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:53:04,652 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:53:04,652 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:53:04,653 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:53:04,655 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:53:04,655 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:53:04,655 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:53:04,656 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:53:04,656 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:53:04,656 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:53:04,656 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:53:04,656 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:53:04,657 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:53:04,657 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:53:04,657 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:53:04,657 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:53:04,657 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:53:04,657 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:53:04,658 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 14:53:04,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:53:04,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:53:04,739 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:53:04,741 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:53:04,741 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:53:04,742 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c [2018-10-10 14:53:05,097 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf64a1e67/38bf02c0ceb24d0b99e725ae4890d160/FLAG37c5cbeba [2018-10-10 14:53:05,287 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:53:05,288 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c [2018-10-10 14:53:05,295 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf64a1e67/38bf02c0ceb24d0b99e725ae4890d160/FLAG37c5cbeba [2018-10-10 14:53:05,309 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf64a1e67/38bf02c0ceb24d0b99e725ae4890d160 [2018-10-10 14:53:05,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:53:05,320 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:53:05,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:05,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:53:05,325 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:53:05,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e4bc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05, skipping insertion in model container [2018-10-10 14:53:05,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:53:05,366 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:53:05,551 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:05,565 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:53:05,588 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:05,611 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:53:05,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05 WrapperNode [2018-10-10 14:53:05,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:05,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:05,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:53:05,613 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:53:05,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:05,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:53:05,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:53:05,663 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:53:05,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:53:05,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:53:05,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:53:05,692 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:53:05,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (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 14:53:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:53:05,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:53:06,743 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:53:06,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:06 BoogieIcfgContainer [2018-10-10 14:53:06,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:53:06,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:53:06,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:53:06,748 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:53:06,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:53:05" (1/3) ... [2018-10-10 14:53:06,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac2feb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:06, skipping insertion in model container [2018-10-10 14:53:06,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (2/3) ... [2018-10-10 14:53:06,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac2feb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:06, skipping insertion in model container [2018-10-10 14:53:06,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:06" (3/3) ... [2018-10-10 14:53:06,752 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength5_true-valid-memsafety.c [2018-10-10 14:53:06,763 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:53:06,773 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-10 14:53:06,792 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-10 14:53:06,820 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:53:06,821 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:53:06,822 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:53:06,822 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:53:06,822 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:53:06,822 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:53:06,823 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:53:06,823 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:53:06,823 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:53:06,844 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-10-10 14:53:06,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-10 14:53:06,854 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:06,855 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] [2018-10-10 14:53:06,858 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:06,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:06,865 INFO L82 PathProgramCache]: Analyzing trace with hash -543196223, now seen corresponding path program 1 times [2018-10-10 14:53:06,867 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:06,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:06,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:06,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:06,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:07,017 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 14:53:07,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:07,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:53:07,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-10 14:53:07,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-10 14:53:07,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:53:07,044 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-10-10 14:53:07,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:07,074 INFO L93 Difference]: Finished difference Result 147 states and 150 transitions. [2018-10-10 14:53:07,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-10 14:53:07,076 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 43 [2018-10-10 14:53:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:07,089 INFO L225 Difference]: With dead ends: 147 [2018-10-10 14:53:07,090 INFO L226 Difference]: Without dead ends: 142 [2018-10-10 14:53:07,092 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 14:53:07,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-10-10 14:53:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-10-10 14:53:07,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-10-10 14:53:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 145 transitions. [2018-10-10 14:53:07,144 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 145 transitions. Word has length 43 [2018-10-10 14:53:07,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:07,144 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 145 transitions. [2018-10-10 14:53:07,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-10 14:53:07,145 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 145 transitions. [2018-10-10 14:53:07,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-10 14:53:07,146 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:07,146 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:07,147 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:07,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:07,148 INFO L82 PathProgramCache]: Analyzing trace with hash -959576323, now seen corresponding path program 1 times [2018-10-10 14:53:07,148 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:07,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:07,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:07,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:07,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:07,262 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 14:53:07,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:07,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:53:07,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:53:07,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:53:07,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:53:07,266 INFO L87 Difference]: Start difference. First operand 142 states and 145 transitions. Second operand 3 states. [2018-10-10 14:53:07,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:07,555 INFO L93 Difference]: Finished difference Result 230 states and 234 transitions. [2018-10-10 14:53:07,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:53:07,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-10-10 14:53:07,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:07,559 INFO L225 Difference]: With dead ends: 230 [2018-10-10 14:53:07,559 INFO L226 Difference]: Without dead ends: 230 [2018-10-10 14:53:07,560 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 14:53:07,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-10-10 14:53:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 146. [2018-10-10 14:53:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-10-10 14:53:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 149 transitions. [2018-10-10 14:53:07,575 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 149 transitions. Word has length 44 [2018-10-10 14:53:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:07,575 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 149 transitions. [2018-10-10 14:53:07,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:53:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 149 transitions. [2018-10-10 14:53:07,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-10 14:53:07,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:07,577 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 14:53:07,578 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:07,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:07,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1425574302, now seen corresponding path program 1 times [2018-10-10 14:53:07,578 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:07,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:07,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:07,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:07,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:07,798 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 14:53:07,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:07,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:53:07,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:53:07,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:53:07,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:53:07,800 INFO L87 Difference]: Start difference. First operand 146 states and 149 transitions. Second operand 6 states. [2018-10-10 14:53:08,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:08,188 INFO L93 Difference]: Finished difference Result 308 states and 313 transitions. [2018-10-10 14:53:08,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:53:08,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2018-10-10 14:53:08,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:08,192 INFO L225 Difference]: With dead ends: 308 [2018-10-10 14:53:08,193 INFO L226 Difference]: Without dead ends: 308 [2018-10-10 14:53:08,193 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:53:08,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-10-10 14:53:08,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 158. [2018-10-10 14:53:08,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-10-10 14:53:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 161 transitions. [2018-10-10 14:53:08,208 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 161 transitions. Word has length 51 [2018-10-10 14:53:08,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:08,209 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 161 transitions. [2018-10-10 14:53:08,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:53:08,209 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 161 transitions. [2018-10-10 14:53:08,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-10 14:53:08,211 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:08,211 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:08,212 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:08,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:08,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1473434202, now seen corresponding path program 1 times [2018-10-10 14:53:08,213 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:08,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:08,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:08,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:08,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:08,416 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 14:53:08,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:08,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:53:08,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:08,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:08,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:08,418 INFO L87 Difference]: Start difference. First operand 158 states and 161 transitions. Second operand 7 states. [2018-10-10 14:53:09,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:09,851 INFO L93 Difference]: Finished difference Result 164 states and 167 transitions. [2018-10-10 14:53:09,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 14:53:09,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2018-10-10 14:53:09,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:09,854 INFO L225 Difference]: With dead ends: 164 [2018-10-10 14:53:09,855 INFO L226 Difference]: Without dead ends: 164 [2018-10-10 14:53:09,856 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:53:09,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-10-10 14:53:09,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2018-10-10 14:53:09,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-10-10 14:53:09,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 160 transitions. [2018-10-10 14:53:09,882 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 160 transitions. Word has length 58 [2018-10-10 14:53:09,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:09,882 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 160 transitions. [2018-10-10 14:53:09,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 160 transitions. [2018-10-10 14:53:09,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-10 14:53:09,891 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:09,891 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:09,892 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:09,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:09,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1568180123, now seen corresponding path program 1 times [2018-10-10 14:53:09,892 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:09,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:09,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:09,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:09,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:10,275 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 14:53:10,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:10,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 14:53:10,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 14:53:10,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 14:53:10,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:53:10,277 INFO L87 Difference]: Start difference. First operand 157 states and 160 transitions. Second operand 12 states. [2018-10-10 14:53:11,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:11,136 INFO L93 Difference]: Finished difference Result 320 states and 328 transitions. [2018-10-10 14:53:11,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:53:11,136 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 59 [2018-10-10 14:53:11,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:11,139 INFO L225 Difference]: With dead ends: 320 [2018-10-10 14:53:11,139 INFO L226 Difference]: Without dead ends: 320 [2018-10-10 14:53:11,140 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2018-10-10 14:53:11,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-10-10 14:53:11,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 166. [2018-10-10 14:53:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-10-10 14:53:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 169 transitions. [2018-10-10 14:53:11,149 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 169 transitions. Word has length 59 [2018-10-10 14:53:11,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:11,150 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 169 transitions. [2018-10-10 14:53:11,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 14:53:11,150 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 169 transitions. [2018-10-10 14:53:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-10 14:53:11,152 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:11,153 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:11,153 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:11,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:11,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2057196778, now seen corresponding path program 1 times [2018-10-10 14:53:11,154 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:11,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:11,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:11,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:11,285 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 14:53:11,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:11,286 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 14:53:11,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:11,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:11,414 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 14:53:11,446 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:11,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-10-10 14:53:11,500 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl [2018-10-10 14:53:11,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:11,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:11,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:11,505 INFO L87 Difference]: Start difference. First operand 166 states and 169 transitions. Second operand 7 states. [2018-10-10 14:53:11,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:11,628 INFO L93 Difference]: Finished difference Result 260 states and 264 transitions. [2018-10-10 14:53:11,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:53:11,629 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2018-10-10 14:53:11,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:11,631 INFO L225 Difference]: With dead ends: 260 [2018-10-10 14:53:11,631 INFO L226 Difference]: Without dead ends: 260 [2018-10-10 14:53:11,632 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 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 14:53:11,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-10-10 14:53:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 177. [2018-10-10 14:53:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-10-10 14:53:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 180 transitions. [2018-10-10 14:53:11,639 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 180 transitions. Word has length 76 [2018-10-10 14:53:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:11,640 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 180 transitions. [2018-10-10 14:53:11,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 180 transitions. [2018-10-10 14:53:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-10 14:53:11,642 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:11,642 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 14:53:11,642 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:11,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:11,643 INFO L82 PathProgramCache]: Analyzing trace with hash 12699493, now seen corresponding path program 1 times [2018-10-10 14:53:11,643 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:11,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:11,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:11,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:12,029 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:12,029 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 14:53:12,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:12,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-10 14:53:12,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-10 14:53:12,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2018-10-10 14:53:12,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:53:12,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:53:12,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:53:12,181 INFO L87 Difference]: Start difference. First operand 177 states and 180 transitions. Second operand 9 states. [2018-10-10 14:53:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:13,054 INFO L93 Difference]: Finished difference Result 623 states and 635 transitions. [2018-10-10 14:53:13,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:53:13,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2018-10-10 14:53:13,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:13,060 INFO L225 Difference]: With dead ends: 623 [2018-10-10 14:53:13,060 INFO L226 Difference]: Without dead ends: 623 [2018-10-10 14:53:13,061 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-10-10 14:53:13,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2018-10-10 14:53:13,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 180. [2018-10-10 14:53:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-10-10 14:53:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 184 transitions. [2018-10-10 14:53:13,070 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 184 transitions. Word has length 83 [2018-10-10 14:53:13,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:13,071 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 184 transitions. [2018-10-10 14:53:13,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:53:13,071 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 184 transitions. [2018-10-10 14:53:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-10 14:53:13,073 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:13,073 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 14:53:13,074 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:13,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:13,074 INFO L82 PathProgramCache]: Analyzing trace with hash 373570270, now seen corresponding path program 1 times [2018-10-10 14:53:13,075 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:13,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:13,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:13,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:13,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-10 14:53:13,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:13,202 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 14:53:13,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:13,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:13,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:53:13,289 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:53:13,293 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:53:13,293 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-10 14:53:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-10 14:53:13,392 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:13,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-10-10 14:53:13,411 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength5_true-valid-memsafety.c_8.bpl [2018-10-10 14:53:13,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:53:13,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:53:13,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:53:13,413 INFO L87 Difference]: Start difference. First operand 180 states and 184 transitions. Second operand 8 states. [2018-10-10 14:53:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:13,758 INFO L93 Difference]: Finished difference Result 220 states and 226 transitions. [2018-10-10 14:53:13,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:53:13,759 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2018-10-10 14:53:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:13,761 INFO L225 Difference]: With dead ends: 220 [2018-10-10 14:53:13,761 INFO L226 Difference]: Without dead ends: 220 [2018-10-10 14:53:13,762 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:53:13,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-10-10 14:53:13,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 179. [2018-10-10 14:53:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-10-10 14:53:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 183 transitions. [2018-10-10 14:53:13,767 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 183 transitions. Word has length 86 [2018-10-10 14:53:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:13,768 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 183 transitions. [2018-10-10 14:53:13,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:53:13,768 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 183 transitions. [2018-10-10 14:53:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-10 14:53:13,769 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:13,770 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 14:53:13,770 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:13,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:13,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1304223416, now seen corresponding path program 1 times [2018-10-10 14:53:13,771 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:13,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:13,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:13,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:13,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-10 14:53:14,017 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:14,018 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 14:53:14,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:14,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:14,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:53:14,100 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:53:14,200 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:53:14,202 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-10-10 14:53:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-10 14:53:14,687 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:14,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 13 [2018-10-10 14:53:14,721 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength5_true-valid-memsafety.c_9.bpl [2018-10-10 14:53:14,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:53:14,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:53:14,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:53:14,723 INFO L87 Difference]: Start difference. First operand 179 states and 183 transitions. Second operand 14 states. [2018-10-10 14:53:15,191 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-10 14:53:15,405 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2018-10-10 14:53:15,823 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2018-10-10 14:53:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:16,517 INFO L93 Difference]: Finished difference Result 395 states and 407 transitions. [2018-10-10 14:53:16,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-10 14:53:16,517 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 87 [2018-10-10 14:53:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:16,520 INFO L225 Difference]: With dead ends: 395 [2018-10-10 14:53:16,520 INFO L226 Difference]: Without dead ends: 395 [2018-10-10 14:53:16,521 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=281, Invalid=589, Unknown=0, NotChecked=0, Total=870 [2018-10-10 14:53:16,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2018-10-10 14:53:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 178. [2018-10-10 14:53:16,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-10-10 14:53:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 182 transitions. [2018-10-10 14:53:16,526 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 182 transitions. Word has length 87 [2018-10-10 14:53:16,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:16,526 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 182 transitions. [2018-10-10 14:53:16,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:53:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 182 transitions. [2018-10-10 14:53:16,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-10 14:53:16,528 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:16,528 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:16,528 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:16,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:16,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1075376542, now seen corresponding path program 1 times [2018-10-10 14:53:16,529 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:16,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:16,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:16,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:16,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:16,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:16,649 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 14:53:16,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:16,698 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:16,809 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:16,829 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:16,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2018-10-10 14:53:16,842 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl [2018-10-10 14:53:16,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 14:53:16,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 14:53:16,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:53:16,844 INFO L87 Difference]: Start difference. First operand 178 states and 182 transitions. Second operand 11 states. [2018-10-10 14:53:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:17,188 INFO L93 Difference]: Finished difference Result 233 states and 235 transitions. [2018-10-10 14:53:17,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-10 14:53:17,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2018-10-10 14:53:17,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:17,191 INFO L225 Difference]: With dead ends: 233 [2018-10-10 14:53:17,191 INFO L226 Difference]: Without dead ends: 233 [2018-10-10 14:53:17,191 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2018-10-10 14:53:17,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-10-10 14:53:17,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 178. [2018-10-10 14:53:17,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-10-10 14:53:17,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 181 transitions. [2018-10-10 14:53:17,196 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 181 transitions. Word has length 91 [2018-10-10 14:53:17,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:17,196 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 181 transitions. [2018-10-10 14:53:17,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 14:53:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 181 transitions. [2018-10-10 14:53:17,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-10 14:53:17,197 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:17,197 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:17,197 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:17,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:17,198 INFO L82 PathProgramCache]: Analyzing trace with hash -2040799882, now seen corresponding path program 1 times [2018-10-10 14:53:17,198 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:17,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:17,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:17,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:17,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:17,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:17,881 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:17,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:17,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:18,059 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:18,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-10-10 14:53:18,073 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength5_true-valid-memsafety.c_11.bpl [2018-10-10 14:53:18,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 14:53:18,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 14:53:18,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-10-10 14:53:18,077 INFO L87 Difference]: Start difference. First operand 178 states and 181 transitions. Second operand 15 states. [2018-10-10 14:53:18,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:18,514 INFO L93 Difference]: Finished difference Result 357 states and 362 transitions. [2018-10-10 14:53:18,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-10 14:53:18,515 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 101 [2018-10-10 14:53:18,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:18,517 INFO L225 Difference]: With dead ends: 357 [2018-10-10 14:53:18,517 INFO L226 Difference]: Without dead ends: 357 [2018-10-10 14:53:18,518 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2018-10-10 14:53:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-10-10 14:53:18,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 208. [2018-10-10 14:53:18,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-10-10 14:53:18,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 211 transitions. [2018-10-10 14:53:18,523 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 211 transitions. Word has length 101 [2018-10-10 14:53:18,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:18,523 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 211 transitions. [2018-10-10 14:53:18,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 14:53:18,524 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 211 transitions. [2018-10-10 14:53:18,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-10 14:53:18,524 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:18,525 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, 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] [2018-10-10 14:53:18,525 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:18,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:18,526 INFO L82 PathProgramCache]: Analyzing trace with hash -979991693, now seen corresponding path program 1 times [2018-10-10 14:53:18,526 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:18,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:18,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:18,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:18,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:18,983 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-10 14:53:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:19,516 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:19,516 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:19,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:19,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:19,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:53:19,583 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:53:19,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:53:19,588 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-10-10 14:53:19,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:53:19,609 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:53:19,633 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:53:19,633 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:14 [2018-10-10 14:53:19,656 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:53:19,657 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:53:19,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-10-10 14:53:19,658 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:53:19,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:53:19,664 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:13 [2018-10-10 14:53:19,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-10-10 14:53:19,693 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:53:19,755 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:53:19,755 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:9 [2018-10-10 14:53:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:20,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:20,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 16 [2018-10-10 14:53:20,032 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength5_true-valid-memsafety.c_12.bpl [2018-10-10 14:53:20,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-10 14:53:20,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-10 14:53:20,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2018-10-10 14:53:20,034 INFO L87 Difference]: Start difference. First operand 208 states and 211 transitions. Second operand 17 states. [2018-10-10 14:53:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:21,289 INFO L93 Difference]: Finished difference Result 372 states and 380 transitions. [2018-10-10 14:53:21,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-10 14:53:21,290 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 109 [2018-10-10 14:53:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:21,292 INFO L225 Difference]: With dead ends: 372 [2018-10-10 14:53:21,292 INFO L226 Difference]: Without dead ends: 372 [2018-10-10 14:53:21,293 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 106 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=259, Invalid=1073, Unknown=0, NotChecked=0, Total=1332 [2018-10-10 14:53:21,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-10-10 14:53:21,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 217. [2018-10-10 14:53:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-10-10 14:53:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 220 transitions. [2018-10-10 14:53:21,300 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 220 transitions. Word has length 109 [2018-10-10 14:53:21,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:21,300 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 220 transitions. [2018-10-10 14:53:21,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-10 14:53:21,301 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 220 transitions. [2018-10-10 14:53:21,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-10 14:53:21,302 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:21,302 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 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] [2018-10-10 14:53:21,303 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:21,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:21,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1632642498, now seen corresponding path program 1 times [2018-10-10 14:53:21,304 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:21,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:21,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:21,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:21,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:21,717 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-10 14:53:21,717 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:21,717 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:21,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:21,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:22,136 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:22,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 11 [2018-10-10 14:53:22,149 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength5_true-valid-memsafety.c_13.bpl [2018-10-10 14:53:22,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 14:53:22,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 14:53:22,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:53:22,151 INFO L87 Difference]: Start difference. First operand 217 states and 220 transitions. Second operand 11 states. [2018-10-10 14:53:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:22,625 INFO L93 Difference]: Finished difference Result 310 states and 314 transitions. [2018-10-10 14:53:22,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:53:22,626 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2018-10-10 14:53:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:22,628 INFO L225 Difference]: With dead ends: 310 [2018-10-10 14:53:22,629 INFO L226 Difference]: Without dead ends: 310 [2018-10-10 14:53:22,630 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2018-10-10 14:53:22,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-10-10 14:53:22,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 227. [2018-10-10 14:53:22,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-10-10 14:53:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 230 transitions. [2018-10-10 14:53:22,635 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 230 transitions. Word has length 126 [2018-10-10 14:53:22,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:22,636 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 230 transitions. [2018-10-10 14:53:22,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 14:53:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 230 transitions. [2018-10-10 14:53:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-10 14:53:22,638 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:22,638 INFO L375 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-10 14:53:22,638 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:22,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:22,639 INFO L82 PathProgramCache]: Analyzing trace with hash 285576014, now seen corresponding path program 2 times [2018-10-10 14:53:22,639 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:22,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:22,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:22,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:22,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-10 14:53:22,786 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:22,786 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:22,794 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:53:22,852 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-10 14:53:22,852 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:53:22,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 88 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:53:23,077 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:23,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 12] total 14 [2018-10-10 14:53:23,079 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-10 14:53:23,083 WARN L205 ceAbstractionStarter]: Timeout [2018-10-10 14:53:23,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:53:23 BoogieIcfgContainer [2018-10-10 14:53:23,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:53:23,085 INFO L168 Benchmark]: Toolchain (without parser) took 17765.45 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:23,086 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:23,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.25 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 14:53:23,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.57 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 14:53:23,087 INFO L168 Benchmark]: Boogie Preprocessor took 29.22 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 14:53:23,088 INFO L168 Benchmark]: RCFGBuilder took 1051.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -759.7 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:23,089 INFO L168 Benchmark]: TraceAbstraction took 16339.07 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 358.6 MB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -371.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:23,093 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 291.25 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 49.57 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.22 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 1051.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -759.7 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16339.07 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 358.6 MB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -371.1 MB). There was no memory consumed. 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 14). - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 16). Cancelled while PathProgramDumpController was trying to verify (iteration 14). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 14). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 14). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 14). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 14). - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 21). Cancelled while PathProgramDumpController was trying to verify (iteration 14). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 14). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 147 locations, 8 error locations. TIMEOUT Result, 16.2s OverallTime, 14 OverallIterations, 5 TraceHistogramMax, 8.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1914 SDtfs, 8807 SDslu, 6884 SDs, 0 SdLazy, 2332 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 973 GetRequests, 755 SyntacticMatches, 12 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=13, 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, 13 MinimizatonAttempts, 1621 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 1773 NumberOfCodeBlocks, 1773 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1752 ConstructedInterpolants, 0 QuantifiedInterpolants, 699431 SizeOfPredicates, 58 NumberOfNonLiveVariables, 1347 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 93/306 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Received shutdown request...