java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:41:31,221 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:41:31,223 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:41:31,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:41:31,237 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:41:31,238 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:41:31,239 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:41:31,241 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:41:31,242 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:41:31,243 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:41:31,244 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:41:31,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:41:31,246 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:41:31,247 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:41:31,248 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:41:31,249 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:41:31,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:41:31,252 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:41:31,254 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:41:31,255 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:41:31,256 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:41:31,257 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:41:31,260 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:41:31,260 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:41:31,260 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:41:31,261 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:41:31,262 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:41:31,263 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:41:31,264 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:41:31,265 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:41:31,265 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:41:31,266 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 14:41:31,268 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:41:31,284 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:41:31,284 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:41:31,287 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:41:31,288 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:41:31,288 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:41:31,288 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:41:31,288 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:41:31,288 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:41:31,289 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:41:31,289 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:41:31,289 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:41:31,289 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:41:31,289 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:41:31,290 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:41:31,290 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:41:31,290 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:41:31,290 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:41:31,290 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:41:31,290 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:41:31,291 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:41:31,291 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:41:31,291 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:41:31,291 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:41:31,291 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:41:31,292 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:41:31,292 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:41:31,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:41:31,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:41:31,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:41:31,362 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:41:31,362 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:41:31,363 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:31,657 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f7e8ecda/4f1eec4d6756423fb8782dd19997235b/FLAG2b34616b6 [2018-10-10 14:41:31,892 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:41:31,893 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:31,912 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f7e8ecda/4f1eec4d6756423fb8782dd19997235b/FLAG2b34616b6 [2018-10-10 14:41:31,927 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f7e8ecda/4f1eec4d6756423fb8782dd19997235b [2018-10-10 14:41:31,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:41:31,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:41:31,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:31,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:41:31,943 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:41:31,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:31" (1/1) ... [2018-10-10 14:41:31,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3873b7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:31, skipping insertion in model container [2018-10-10 14:41:31,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:31" (1/1) ... [2018-10-10 14:41:31,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:41:32,001 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:41:32,283 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:32,294 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:41:32,346 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:32,409 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:41:32,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32 WrapperNode [2018-10-10 14:41:32,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:32,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:32,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:41:32,411 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:41:32,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:32,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:41:32,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:41:32,462 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:41:32,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (1/1) ... [2018-10-10 14:41:32,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:41:32,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:41:32,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:41:32,498 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:41:32,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (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 14:41:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:41:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:41:33,478 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:41:33,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:33 BoogieIcfgContainer [2018-10-10 14:41:33,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:41:33,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:41:33,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:41:33,483 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:41:33,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:41:31" (1/3) ... [2018-10-10 14:41:33,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f669129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:33, skipping insertion in model container [2018-10-10 14:41:33,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:32" (2/3) ... [2018-10-10 14:41:33,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f669129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:33, skipping insertion in model container [2018-10-10 14:41:33,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:33" (3/3) ... [2018-10-10 14:41:33,487 INFO L112 eAbstractionObserver]: Analyzing ICFG count_down-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:33,497 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:41:33,510 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-10-10 14:41:33,526 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-10-10 14:41:33,554 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:41:33,555 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:41:33,555 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:41:33,556 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:41:33,556 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:41:33,556 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:41:33,557 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:41:33,557 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:41:33,557 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:41:33,576 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-10-10 14:41:33,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-10 14:41:33,586 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:33,587 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] [2018-10-10 14:41:33,590 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:33,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:33,596 INFO L82 PathProgramCache]: Analyzing trace with hash -43212530, now seen corresponding path program 1 times [2018-10-10 14:41:33,599 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:33,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:33,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:33,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:33,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:33,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:33,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:33,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:41:33,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:41:33,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:41:33,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:41:33,835 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 5 states. [2018-10-10 14:41:34,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:34,062 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2018-10-10 14:41:34,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:41:34,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-10-10 14:41:34,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:34,074 INFO L225 Difference]: With dead ends: 117 [2018-10-10 14:41:34,075 INFO L226 Difference]: Without dead ends: 112 [2018-10-10 14:41:34,077 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:41:34,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-10 14:41:34,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-10-10 14:41:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-10 14:41:34,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 116 transitions. [2018-10-10 14:41:34,117 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 116 transitions. Word has length 38 [2018-10-10 14:41:34,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:34,117 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 116 transitions. [2018-10-10 14:41:34,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:41:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2018-10-10 14:41:34,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-10 14:41:34,119 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:34,119 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:34,120 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:34,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:34,120 INFO L82 PathProgramCache]: Analyzing trace with hash -2120128278, now seen corresponding path program 1 times [2018-10-10 14:41:34,120 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:34,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:34,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:34,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:34,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:34,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:34,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:41:34,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:41:34,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:41:34,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:41:34,238 INFO L87 Difference]: Start difference. First operand 112 states and 116 transitions. Second operand 6 states. [2018-10-10 14:41:34,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:34,567 INFO L93 Difference]: Finished difference Result 120 states and 125 transitions. [2018-10-10 14:41:34,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:41:34,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-10-10 14:41:34,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:34,571 INFO L225 Difference]: With dead ends: 120 [2018-10-10 14:41:34,572 INFO L226 Difference]: Without dead ends: 120 [2018-10-10 14:41:34,573 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:41:34,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-10-10 14:41:34,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 110. [2018-10-10 14:41:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-10-10 14:41:34,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2018-10-10 14:41:34,586 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 39 [2018-10-10 14:41:34,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:34,586 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2018-10-10 14:41:34,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:41:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2018-10-10 14:41:34,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-10 14:41:34,588 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:34,588 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:34,589 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:34,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:34,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1299467041, now seen corresponding path program 1 times [2018-10-10 14:41:34,589 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:34,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:34,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:34,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:34,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:34,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:34,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:34,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:41:34,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 14:41:34,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 14:41:34,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:41:34,690 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand 4 states. [2018-10-10 14:41:34,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:34,812 INFO L93 Difference]: Finished difference Result 131 states and 136 transitions. [2018-10-10 14:41:34,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 14:41:34,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-10-10 14:41:34,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:34,814 INFO L225 Difference]: With dead ends: 131 [2018-10-10 14:41:34,816 INFO L226 Difference]: Without dead ends: 131 [2018-10-10 14:41:34,816 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:41:34,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-10-10 14:41:34,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 112. [2018-10-10 14:41:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-10 14:41:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 116 transitions. [2018-10-10 14:41:34,826 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 116 transitions. Word has length 40 [2018-10-10 14:41:34,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:34,827 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 116 transitions. [2018-10-10 14:41:34,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 14:41:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2018-10-10 14:41:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-10 14:41:34,828 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:34,828 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:34,829 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:34,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:34,830 INFO L82 PathProgramCache]: Analyzing trace with hash 980256608, now seen corresponding path program 1 times [2018-10-10 14:41:34,830 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:34,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:34,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:34,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:34,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:35,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:35,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:41:35,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:41:35,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:41:35,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:41:35,187 INFO L87 Difference]: Start difference. First operand 112 states and 116 transitions. Second operand 6 states. [2018-10-10 14:41:35,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:35,640 INFO L93 Difference]: Finished difference Result 118 states and 123 transitions. [2018-10-10 14:41:35,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:41:35,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-10-10 14:41:35,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:35,642 INFO L225 Difference]: With dead ends: 118 [2018-10-10 14:41:35,642 INFO L226 Difference]: Without dead ends: 118 [2018-10-10 14:41:35,643 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:41:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-10-10 14:41:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 110. [2018-10-10 14:41:35,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-10-10 14:41:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2018-10-10 14:41:35,650 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 40 [2018-10-10 14:41:35,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:35,650 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2018-10-10 14:41:35,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:41:35,651 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2018-10-10 14:41:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-10 14:41:35,652 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:35,652 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:35,652 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:35,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:35,653 INFO L82 PathProgramCache]: Analyzing trace with hash 323183880, now seen corresponding path program 1 times [2018-10-10 14:41:35,653 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:35,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:35,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:35,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:35,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:35,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:35,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:35,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:41:35,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:41:35,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:41:35,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:41:35,936 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand 10 states. [2018-10-10 14:41:36,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:36,527 INFO L93 Difference]: Finished difference Result 127 states and 132 transitions. [2018-10-10 14:41:36,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-10 14:41:36,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-10-10 14:41:36,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:36,530 INFO L225 Difference]: With dead ends: 127 [2018-10-10 14:41:36,530 INFO L226 Difference]: Without dead ends: 127 [2018-10-10 14:41:36,532 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2018-10-10 14:41:36,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-10-10 14:41:36,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 120. [2018-10-10 14:41:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-10-10 14:41:36,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2018-10-10 14:41:36,539 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 41 [2018-10-10 14:41:36,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:36,540 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2018-10-10 14:41:36,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:41:36,540 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2018-10-10 14:41:36,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-10 14:41:36,542 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:36,542 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] [2018-10-10 14:41:36,543 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:36,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:36,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1164478203, now seen corresponding path program 1 times [2018-10-10 14:41:36,543 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:36,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:36,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:36,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:36,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:36,937 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 14:41:36,937 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:41:36,937 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:41:36,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:36,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:37,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:41:37,150 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:37,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-10 14:41:37,272 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:18, output treesize:14 [2018-10-10 14:41:37,995 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 14:41:38,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:41:38,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 18 [2018-10-10 14:41:38,054 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/count_down-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-10 14:41:38,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-10 14:41:38,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-10 14:41:38,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2018-10-10 14:41:38,060 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand 19 states. [2018-10-10 14:41:40,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:40,582 INFO L93 Difference]: Finished difference Result 293 states and 303 transitions. [2018-10-10 14:41:40,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-10 14:41:40,583 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 59 [2018-10-10 14:41:40,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:40,585 INFO L225 Difference]: With dead ends: 293 [2018-10-10 14:41:40,585 INFO L226 Difference]: Without dead ends: 293 [2018-10-10 14:41:40,586 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=373, Invalid=1109, Unknown=0, NotChecked=0, Total=1482 [2018-10-10 14:41:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2018-10-10 14:41:40,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 158. [2018-10-10 14:41:40,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-10-10 14:41:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 165 transitions. [2018-10-10 14:41:40,597 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 165 transitions. Word has length 59 [2018-10-10 14:41:40,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:40,598 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 165 transitions. [2018-10-10 14:41:40,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-10 14:41:40,598 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 165 transitions. [2018-10-10 14:41:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-10 14:41:40,600 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:40,600 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 14:41:40,600 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:40,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:40,601 INFO L82 PathProgramCache]: Analyzing trace with hash -603924884, now seen corresponding path program 1 times [2018-10-10 14:41:40,601 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:40,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:40,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:40,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:40,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:41,012 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:41:41,012 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:41:41,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:41,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:41,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:41:41,065 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:41,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:41:41,101 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-10-10 14:41:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:41,570 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:41:41,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2018-10-10 14:41:41,588 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/count_down-alloca_true-valid-memsafety_true-termination.i_7.bpl [2018-10-10 14:41:41,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 14:41:41,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 14:41:41,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2018-10-10 14:41:41,594 INFO L87 Difference]: Start difference. First operand 158 states and 165 transitions. Second operand 15 states. [2018-10-10 14:41:42,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:42,635 INFO L93 Difference]: Finished difference Result 250 states and 261 transitions. [2018-10-10 14:41:42,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 14:41:42,636 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 60 [2018-10-10 14:41:42,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:42,638 INFO L225 Difference]: With dead ends: 250 [2018-10-10 14:41:42,639 INFO L226 Difference]: Without dead ends: 250 [2018-10-10 14:41:42,639 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 53 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2018-10-10 14:41:42,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-10-10 14:41:42,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 147. [2018-10-10 14:41:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-10-10 14:41:42,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 153 transitions. [2018-10-10 14:41:42,647 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 153 transitions. Word has length 60 [2018-10-10 14:41:42,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:42,647 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 153 transitions. [2018-10-10 14:41:42,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 14:41:42,648 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 153 transitions. [2018-10-10 14:41:42,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-10 14:41:42,650 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:42,650 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 14:41:42,650 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:42,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:42,651 INFO L82 PathProgramCache]: Analyzing trace with hash -708959191, now seen corresponding path program 1 times [2018-10-10 14:41:42,651 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:42,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:42,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:42,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:42,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:42,883 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:41:42,883 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 14:41:42,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:42,923 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:43,090 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:41:43,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-10-10 14:41:43,105 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/count_down-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-10 14:41:43,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:41:43,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:41:43,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:41:43,107 INFO L87 Difference]: Start difference. First operand 147 states and 153 transitions. Second operand 14 states. [2018-10-10 14:41:43,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:43,482 INFO L93 Difference]: Finished difference Result 295 states and 307 transitions. [2018-10-10 14:41:43,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 14:41:43,483 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 77 [2018-10-10 14:41:43,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:43,485 INFO L225 Difference]: With dead ends: 295 [2018-10-10 14:41:43,485 INFO L226 Difference]: Without dead ends: 295 [2018-10-10 14:41:43,486 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2018-10-10 14:41:43,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2018-10-10 14:41:43,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 249. [2018-10-10 14:41:43,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-10-10 14:41:43,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 261 transitions. [2018-10-10 14:41:43,495 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 261 transitions. Word has length 77 [2018-10-10 14:41:43,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:43,495 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 261 transitions. [2018-10-10 14:41:43,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:41:43,495 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 261 transitions. [2018-10-10 14:41:43,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-10 14:41:43,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:43,498 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:43,499 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:43,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:43,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1950075129, now seen corresponding path program 1 times [2018-10-10 14:41:43,499 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:43,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:43,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:43,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:43,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-10 14:41:43,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:43,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:41:43,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:41:43,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:41:43,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:41:43,762 INFO L87 Difference]: Start difference. First operand 249 states and 261 transitions. Second operand 9 states. [2018-10-10 14:41:44,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:44,070 INFO L93 Difference]: Finished difference Result 248 states and 260 transitions. [2018-10-10 14:41:44,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-10 14:41:44,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2018-10-10 14:41:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:44,072 INFO L225 Difference]: With dead ends: 248 [2018-10-10 14:41:44,072 INFO L226 Difference]: Without dead ends: 233 [2018-10-10 14:41:44,073 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2018-10-10 14:41:44,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-10-10 14:41:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2018-10-10 14:41:44,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-10-10 14:41:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 244 transitions. [2018-10-10 14:41:44,079 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 244 transitions. Word has length 81 [2018-10-10 14:41:44,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:44,079 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 244 transitions. [2018-10-10 14:41:44,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:41:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 244 transitions. [2018-10-10 14:41:44,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-10 14:41:44,081 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:44,081 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:44,082 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:44,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:44,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1401713943, now seen corresponding path program 1 times [2018-10-10 14:41:44,082 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:44,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:44,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:44,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:44,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:44,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:41:44,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:44,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:41:44,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:41:44,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:41:44,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:41:44,265 INFO L87 Difference]: Start difference. First operand 233 states and 244 transitions. Second operand 5 states. [2018-10-10 14:41:44,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:44,414 INFO L93 Difference]: Finished difference Result 256 states and 266 transitions. [2018-10-10 14:41:44,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:41:44,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2018-10-10 14:41:44,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:44,417 INFO L225 Difference]: With dead ends: 256 [2018-10-10 14:41:44,417 INFO L226 Difference]: Without dead ends: 166 [2018-10-10 14:41:44,418 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:41:44,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-10-10 14:41:44,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2018-10-10 14:41:44,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-10-10 14:41:44,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 160 transitions. [2018-10-10 14:41:44,422 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 160 transitions. Word has length 83 [2018-10-10 14:41:44,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:44,422 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 160 transitions. [2018-10-10 14:41:44,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:41:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 160 transitions. [2018-10-10 14:41:44,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-10 14:41:44,423 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:44,424 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:44,424 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:44,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:44,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2048543859, now seen corresponding path program 2 times [2018-10-10 14:41:44,425 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:44,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:44,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:44,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:44,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:44,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:41:44,700 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 14:41:44,710 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:41:44,745 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-10 14:41:44,746 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:41:44,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:44,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:41:44,929 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:44,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:41:44,990 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-10-10 14:41:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:45,652 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:41:45,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 27 [2018-10-10 14:41:45,653 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-10 14:41:45,657 WARN L205 ceAbstractionStarter]: Timeout [2018-10-10 14:41:45,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:41:45 BoogieIcfgContainer [2018-10-10 14:41:45,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:41:45,659 INFO L168 Benchmark]: Toolchain (without parser) took 13721.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 872.9 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -507.2 MB). Peak memory consumption was 365.8 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:45,660 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:45,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.08 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:45,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.60 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:45,662 INFO L168 Benchmark]: Boogie Preprocessor took 35.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:45,663 INFO L168 Benchmark]: RCFGBuilder took 981.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:45,664 INFO L168 Benchmark]: TraceAbstraction took 12178.02 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 117.4 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 267.9 MB). Peak memory consumption was 385.3 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:45,668 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 471.08 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.60 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 35.27 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 981.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12178.02 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 117.4 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 267.9 MB). Peak memory consumption was 385.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - TimeoutResultAtElement [Line: 540]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 540). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 11). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 9 error locations. TIMEOUT Result, 12.1s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 6.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1037 SDtfs, 4832 SDslu, 3441 SDs, 0 SdLazy, 1354 SolverSat, 145 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 191 SyntacticMatches, 8 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=249occurred in iteration=8, 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, 10 MinimizatonAttempts, 339 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 754 NumberOfCodeBlocks, 754 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 741 ConstructedInterpolants, 43 QuantifiedInterpolants, 269618 SizeOfPredicates, 32 NumberOfNonLiveVariables, 335 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 18/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Received shutdown request...