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/memsafety/test-0158_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:43:31,402 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:43:31,404 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:43:31,418 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:43:31,419 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:43:31,422 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:43:31,424 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:43:31,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:43:31,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:43:31,430 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:43:31,433 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:43:31,433 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:43:31,434 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:43:31,435 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:43:31,439 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:43:31,442 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:43:31,443 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:43:31,444 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:43:31,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:43:31,455 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:43:31,456 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:43:31,457 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:43:31,460 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:43:31,460 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:43:31,460 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:43:31,461 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:43:31,462 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:43:31,463 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:43:31,463 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:43:31,464 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:43:31,465 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:43:31,465 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:43:31,466 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:43:31,466 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:43:31,467 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:43:31,467 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:43:31,468 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 14:43:31,488 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:43:31,488 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:43:31,491 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:43:31,492 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:43:31,492 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:43:31,492 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:43:31,492 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:43:31,492 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:43:31,493 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:43:31,493 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:43:31,493 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:43:31,493 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:43:31,493 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:43:31,493 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:43:31,494 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:43:31,494 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:43:31,494 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:43:31,494 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:43:31,494 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:43:31,495 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:43:31,498 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:43:31,498 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:43:31,498 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:43:31,498 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:43:31,499 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:43:31,499 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 14:43:31,549 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:43:31,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:43:31,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:43:31,576 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:43:31,577 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:43:31,577 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-10-10 14:43:31,885 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10419cce/f8402dc0374d4660bab38fab095f3eab/FLAGe57a9038a [2018-10-10 14:43:32,198 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:43:32,198 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-10-10 14:43:32,212 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10419cce/f8402dc0374d4660bab38fab095f3eab/FLAGe57a9038a [2018-10-10 14:43:32,227 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10419cce/f8402dc0374d4660bab38fab095f3eab [2018-10-10 14:43:32,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:43:32,239 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:43:32,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:43:32,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:43:32,245 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:43:32,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e501618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32, skipping insertion in model container [2018-10-10 14:43:32,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:43:32,318 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:43:32,542 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:43:32,548 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:43:32,608 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:43:32,663 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:43:32,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32 WrapperNode [2018-10-10 14:43:32,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:43:32,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:43:32,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:43:32,666 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:43:32,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:43:32,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:43:32,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:43:32,736 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:43:32,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (1/1) ... [2018-10-10 14:43:32,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:43:32,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:43:32,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:43:32,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:43:32,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (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 14:43:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:43:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:43:33,483 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:43:33,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:43:33 BoogieIcfgContainer [2018-10-10 14:43:33,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:43:33,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:43:33,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:43:33,488 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:43:33,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:43:32" (1/3) ... [2018-10-10 14:43:33,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de4e2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:43:33, skipping insertion in model container [2018-10-10 14:43:33,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:32" (2/3) ... [2018-10-10 14:43:33,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de4e2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:43:33, skipping insertion in model container [2018-10-10 14:43:33,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:43:33" (3/3) ... [2018-10-10 14:43:33,492 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_true-valid-memsafety_true-termination.i [2018-10-10 14:43:33,502 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:43:33,511 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-10-10 14:43:33,529 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-10-10 14:43:33,557 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:43:33,558 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:43:33,558 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:43:33,558 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:43:33,559 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:43:33,559 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:43:33,561 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:43:33,561 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:43:33,561 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:43:33,587 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2018-10-10 14:43:33,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-10 14:43:33,595 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:33,596 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] [2018-10-10 14:43:33,599 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:33,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:33,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1997916780, now seen corresponding path program 1 times [2018-10-10 14:43:33,606 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:33,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:33,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:33,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:33,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:34,108 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 8 [2018-10-10 14:43:34,175 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 14:43:34,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:34,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:43:34,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:43:34,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:43:34,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:43:34,205 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 7 states. [2018-10-10 14:43:34,544 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-10 14:43:34,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:34,872 INFO L93 Difference]: Finished difference Result 92 states and 91 transitions. [2018-10-10 14:43:34,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:43:34,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2018-10-10 14:43:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:34,888 INFO L225 Difference]: With dead ends: 92 [2018-10-10 14:43:34,888 INFO L226 Difference]: Without dead ends: 87 [2018-10-10 14:43:34,890 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:43:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-10-10 14:43:34,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-10-10 14:43:34,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-10-10 14:43:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 86 transitions. [2018-10-10 14:43:34,927 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 86 transitions. Word has length 36 [2018-10-10 14:43:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:34,927 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 86 transitions. [2018-10-10 14:43:34,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:43:34,927 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 86 transitions. [2018-10-10 14:43:34,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-10 14:43:34,928 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:34,929 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] [2018-10-10 14:43:34,929 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:34,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:34,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1805877967, now seen corresponding path program 1 times [2018-10-10 14:43:34,930 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:34,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:34,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:34,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:34,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:35,572 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 14:43:35,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:35,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-10 14:43:35,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 14:43:35,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 14:43:35,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:43:35,576 INFO L87 Difference]: Start difference. First operand 87 states and 86 transitions. Second operand 11 states. [2018-10-10 14:43:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:36,530 INFO L93 Difference]: Finished difference Result 86 states and 85 transitions. [2018-10-10 14:43:36,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-10 14:43:36,531 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-10-10 14:43:36,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:36,535 INFO L225 Difference]: With dead ends: 86 [2018-10-10 14:43:36,536 INFO L226 Difference]: Without dead ends: 86 [2018-10-10 14:43:36,538 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2018-10-10 14:43:36,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-10-10 14:43:36,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-10-10 14:43:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-10-10 14:43:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 85 transitions. [2018-10-10 14:43:36,554 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 85 transitions. Word has length 37 [2018-10-10 14:43:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:36,555 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 85 transitions. [2018-10-10 14:43:36,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 14:43:36,555 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 85 transitions. [2018-10-10 14:43:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-10 14:43:36,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:36,557 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] [2018-10-10 14:43:36,558 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:36,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:36,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1224677417, now seen corresponding path program 1 times [2018-10-10 14:43:36,558 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:36,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:36,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:36,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:36,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:36,876 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 14:43:36,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:36,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 14:43:36,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 14:43:36,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 14:43:36,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:43:36,878 INFO L87 Difference]: Start difference. First operand 86 states and 85 transitions. Second operand 12 states. [2018-10-10 14:43:37,425 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-10-10 14:43:37,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:37,716 INFO L93 Difference]: Finished difference Result 85 states and 84 transitions. [2018-10-10 14:43:37,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 14:43:37,717 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-10-10 14:43:37,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:37,719 INFO L225 Difference]: With dead ends: 85 [2018-10-10 14:43:37,719 INFO L226 Difference]: Without dead ends: 85 [2018-10-10 14:43:37,720 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=180, Invalid=470, Unknown=0, NotChecked=0, Total=650 [2018-10-10 14:43:37,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-10 14:43:37,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-10-10 14:43:37,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-10-10 14:43:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 84 transitions. [2018-10-10 14:43:37,728 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 84 transitions. Word has length 47 [2018-10-10 14:43:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:37,728 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 84 transitions. [2018-10-10 14:43:37,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 14:43:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 84 transitions. [2018-10-10 14:43:37,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-10 14:43:37,730 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:37,730 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:37,731 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:37,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:37,731 INFO L82 PathProgramCache]: Analyzing trace with hash -40500772, now seen corresponding path program 1 times [2018-10-10 14:43:37,731 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:37,732 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:37,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:37,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:37,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:37,840 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 14:43:37,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:37,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:43:37,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:43:37,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:43:37,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:43:37,842 INFO L87 Difference]: Start difference. First operand 85 states and 84 transitions. Second operand 6 states. [2018-10-10 14:43:37,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:37,961 INFO L93 Difference]: Finished difference Result 84 states and 83 transitions. [2018-10-10 14:43:37,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:43:37,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-10-10 14:43:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:37,964 INFO L225 Difference]: With dead ends: 84 [2018-10-10 14:43:37,964 INFO L226 Difference]: Without dead ends: 84 [2018-10-10 14:43:37,965 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:43:37,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-10-10 14:43:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-10-10 14:43:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-10-10 14:43:37,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 83 transitions. [2018-10-10 14:43:37,972 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 83 transitions. Word has length 55 [2018-10-10 14:43:37,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:37,972 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 83 transitions. [2018-10-10 14:43:37,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:43:37,972 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 83 transitions. [2018-10-10 14:43:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-10 14:43:37,974 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:37,974 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:37,975 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:37,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:37,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1255523840, now seen corresponding path program 1 times [2018-10-10 14:43:37,975 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:37,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:37,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:37,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:37,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:38,154 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 14:43:38,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:38,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:43:38,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:43:38,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:43:38,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:43:38,156 INFO L87 Difference]: Start difference. First operand 84 states and 83 transitions. Second operand 8 states. [2018-10-10 14:43:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:38,342 INFO L93 Difference]: Finished difference Result 83 states and 82 transitions. [2018-10-10 14:43:38,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:43:38,343 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2018-10-10 14:43:38,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:38,344 INFO L225 Difference]: With dead ends: 83 [2018-10-10 14:43:38,344 INFO L226 Difference]: Without dead ends: 83 [2018-10-10 14:43:38,345 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:43:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-10-10 14:43:38,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-10-10 14:43:38,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-10-10 14:43:38,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 82 transitions. [2018-10-10 14:43:38,351 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 82 transitions. Word has length 56 [2018-10-10 14:43:38,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:38,352 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 82 transitions. [2018-10-10 14:43:38,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:43:38,352 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 82 transitions. [2018-10-10 14:43:38,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-10 14:43:38,354 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:38,354 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:38,354 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:38,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:38,355 INFO L82 PathProgramCache]: Analyzing trace with hash -382506015, now seen corresponding path program 1 times [2018-10-10 14:43:38,355 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:38,355 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:38,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:38,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:38,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:38,677 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 14:43:38,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:38,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 14:43:38,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:43:38,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:43:38,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:43:38,679 INFO L87 Difference]: Start difference. First operand 83 states and 82 transitions. Second operand 14 states. [2018-10-10 14:43:39,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:39,307 INFO L93 Difference]: Finished difference Result 82 states and 81 transitions. [2018-10-10 14:43:39,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 14:43:39,308 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2018-10-10 14:43:39,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:39,309 INFO L225 Difference]: With dead ends: 82 [2018-10-10 14:43:39,309 INFO L226 Difference]: Without dead ends: 82 [2018-10-10 14:43:39,310 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2018-10-10 14:43:39,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-10-10 14:43:39,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-10-10 14:43:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-10 14:43:39,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 81 transitions. [2018-10-10 14:43:39,316 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 81 transitions. Word has length 63 [2018-10-10 14:43:39,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:39,316 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 81 transitions. [2018-10-10 14:43:39,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:43:39,316 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 81 transitions. [2018-10-10 14:43:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-10 14:43:39,318 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:39,318 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:39,318 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:39,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:39,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1027215525, now seen corresponding path program 1 times [2018-10-10 14:43:39,319 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:39,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:39,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:39,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:39,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:39,757 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 14:43:39,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:39,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 14:43:39,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:43:39,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:43:39,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:43:39,759 INFO L87 Difference]: Start difference. First operand 82 states and 81 transitions. Second operand 14 states. [2018-10-10 14:43:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:40,688 INFO L93 Difference]: Finished difference Result 81 states and 80 transitions. [2018-10-10 14:43:40,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-10 14:43:40,694 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2018-10-10 14:43:40,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:40,695 INFO L225 Difference]: With dead ends: 81 [2018-10-10 14:43:40,695 INFO L226 Difference]: Without dead ends: 81 [2018-10-10 14:43:40,696 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2018-10-10 14:43:40,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-10-10 14:43:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-10-10 14:43:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-10-10 14:43:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 80 transitions. [2018-10-10 14:43:40,701 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 80 transitions. Word has length 64 [2018-10-10 14:43:40,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:40,702 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 80 transitions. [2018-10-10 14:43:40,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:43:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 80 transitions. [2018-10-10 14:43:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-10 14:43:40,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:40,704 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:40,704 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:40,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:40,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2068390481, now seen corresponding path program 1 times [2018-10-10 14:43:40,705 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:40,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:40,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:40,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:40,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:42,567 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 14:43:42,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:42,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-10-10 14:43:42,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-10 14:43:42,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-10 14:43:42,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=549, Unknown=0, NotChecked=0, Total=600 [2018-10-10 14:43:42,569 INFO L87 Difference]: Start difference. First operand 81 states and 80 transitions. Second operand 25 states. [2018-10-10 14:43:44,706 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2018-10-10 14:43:44,905 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2018-10-10 14:43:45,133 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2018-10-10 14:43:45,376 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-10-10 14:43:45,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:45,955 INFO L93 Difference]: Finished difference Result 80 states and 79 transitions. [2018-10-10 14:43:45,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-10 14:43:45,955 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 80 [2018-10-10 14:43:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:45,956 INFO L225 Difference]: With dead ends: 80 [2018-10-10 14:43:45,956 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 14:43:45,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=348, Invalid=2304, Unknown=0, NotChecked=0, Total=2652 [2018-10-10 14:43:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 14:43:45,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 14:43:45,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 14:43:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 14:43:45,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2018-10-10 14:43:45,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:45,960 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 14:43:45,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-10-10 14:43:45,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 14:43:45,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 14:43:45,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:43:45 BoogieIcfgContainer [2018-10-10 14:43:45,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:43:45,967 INFO L168 Benchmark]: Toolchain (without parser) took 13729.03 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 857.2 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -473.3 MB). Peak memory consumption was 383.9 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:45,968 INFO L168 Benchmark]: CDTParser took 0.20 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 14:43:45,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:45,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.15 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 14:43:45,970 INFO L168 Benchmark]: Boogie Preprocessor took 26.43 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 14:43:45,971 INFO L168 Benchmark]: RCFGBuilder took 721.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -767.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:45,972 INFO L168 Benchmark]: TraceAbstraction took 12480.97 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 145.8 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 273.4 MB). Peak memory consumption was 419.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:45,976 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 424.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.15 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 26.43 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 721.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -767.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12480.97 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 145.8 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 273.4 MB). Peak memory consumption was 419.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 619]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 9 error locations. SAFE Result, 12.4s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 7.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 440 SDtfs, 2194 SDslu, 1716 SDs, 0 SdLazy, 1743 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 197493 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...