java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:53:04,045 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:53:04,047 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:53:04,060 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:53:04,060 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:53:04,061 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:53:04,062 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:53:04,064 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:53:04,066 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:53:04,067 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:53:04,068 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:53:04,068 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:53:04,069 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:53:04,070 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:53:04,072 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:53:04,072 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:53:04,073 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:53:04,075 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:53:04,077 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:53:04,079 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:53:04,080 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:53:04,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:53:04,084 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:53:04,085 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:53:04,085 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:53:04,086 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:53:04,087 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:53:04,088 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:53:04,089 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:53:04,090 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:53:04,090 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:53:04,091 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:53:04,091 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:53:04,092 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:53:04,093 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:53:04,094 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:53:04,094 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:53:04,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:53:04,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:53:04,112 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:53:04,112 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:53:04,112 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:53:04,112 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:53:04,113 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:53:04,113 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:53:04,113 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:53:04,113 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:53:04,114 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:53:04,114 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:53:04,114 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:53:04,114 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:53:04,114 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:53:04,115 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:53:04,115 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:53:04,115 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:53:04,115 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:53:04,116 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:53:04,116 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:53:04,116 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:53:04,116 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:53:04,117 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:53:04,117 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:53:04,117 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:53:04,171 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:53:04,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:53:04,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:53:04,198 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:53:04,199 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:53:04,199 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-10-10 14:53:04,495 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce49bcb7/d1b052c9ad1240479a39aaffc346863c/FLAG90f5dbb4d [2018-10-10 14:53:04,750 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:53:04,751 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-10-10 14:53:04,758 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce49bcb7/d1b052c9ad1240479a39aaffc346863c/FLAG90f5dbb4d [2018-10-10 14:53:04,773 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce49bcb7/d1b052c9ad1240479a39aaffc346863c [2018-10-10 14:53:04,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:53:04,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:53:04,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:04,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:53:04,790 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:53:04,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:04" (1/1) ... [2018-10-10 14:53:04,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1383d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:04, skipping insertion in model container [2018-10-10 14:53:04,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:04" (1/1) ... [2018-10-10 14:53:04,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:53:04,825 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:53:05,036 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:05,047 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:53:05,067 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:05,086 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:53:05,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05 WrapperNode [2018-10-10 14:53:05,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:05,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:05,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:53:05,088 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:53:05,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:05,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:53:05,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:53:05,140 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:53:05,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... [2018-10-10 14:53:05,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:53:05,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:53:05,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:53:05,172 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:53:05,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:53:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:53:05,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:53:06,175 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:53:06,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:06 BoogieIcfgContainer [2018-10-10 14:53:06,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:53:06,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:53:06,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:53:06,183 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:53:06,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:53:04" (1/3) ... [2018-10-10 14:53:06,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487400e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:06, skipping insertion in model container [2018-10-10 14:53:06,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:05" (2/3) ... [2018-10-10 14:53:06,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487400e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:06, skipping insertion in model container [2018-10-10 14:53:06,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:06" (3/3) ... [2018-10-10 14:53:06,187 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-10-10 14:53:06,198 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:53:06,210 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-10 14:53:06,231 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-10 14:53:06,262 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:53:06,263 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:53:06,263 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:53:06,263 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:53:06,263 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:53:06,264 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:53:06,264 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:53:06,264 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:53:06,264 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:53:06,286 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2018-10-10 14:53:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-10 14:53:06,296 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:06,297 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:06,300 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:06,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash -899253757, now seen corresponding path program 1 times [2018-10-10 14:53:06,312 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:06,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:06,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:06,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:06,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:06,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:06,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:53:06,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-10 14:53:06,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-10 14:53:06,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:53:06,484 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2018-10-10 14:53:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:06,519 INFO L93 Difference]: Finished difference Result 145 states and 148 transitions. [2018-10-10 14:53:06,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-10 14:53:06,520 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2018-10-10 14:53:06,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:06,535 INFO L225 Difference]: With dead ends: 145 [2018-10-10 14:53:06,536 INFO L226 Difference]: Without dead ends: 140 [2018-10-10 14:53:06,538 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:53:06,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-10-10 14:53:06,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-10-10 14:53:06,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-10-10 14:53:06,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 143 transitions. [2018-10-10 14:53:06,586 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 143 transitions. Word has length 42 [2018-10-10 14:53:06,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:06,587 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 143 transitions. [2018-10-10 14:53:06,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-10 14:53:06,587 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 143 transitions. [2018-10-10 14:53:06,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-10 14:53:06,588 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:06,589 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:06,589 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:06,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:06,590 INFO L82 PathProgramCache]: Analyzing trace with hash -777111271, now seen corresponding path program 1 times [2018-10-10 14:53:06,590 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:06,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:06,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:06,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:06,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:06,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:06,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:53:06,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:53:06,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:53:06,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:53:06,719 INFO L87 Difference]: Start difference. First operand 140 states and 143 transitions. Second operand 3 states. [2018-10-10 14:53:06,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:06,861 INFO L93 Difference]: Finished difference Result 227 states and 231 transitions. [2018-10-10 14:53:06,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:53:06,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2018-10-10 14:53:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:06,865 INFO L225 Difference]: With dead ends: 227 [2018-10-10 14:53:06,865 INFO L226 Difference]: Without dead ends: 227 [2018-10-10 14:53:06,866 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:53:06,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-10-10 14:53:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 144. [2018-10-10 14:53:06,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-10-10 14:53:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 147 transitions. [2018-10-10 14:53:06,883 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 147 transitions. Word has length 43 [2018-10-10 14:53:06,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:06,884 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 147 transitions. [2018-10-10 14:53:06,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:53:06,884 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 147 transitions. [2018-10-10 14:53:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-10 14:53:06,885 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:06,888 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] [2018-10-10 14:53:06,889 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:06,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:06,889 INFO L82 PathProgramCache]: Analyzing trace with hash 958121950, now seen corresponding path program 1 times [2018-10-10 14:53:06,889 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:06,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:06,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:06,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:06,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:06,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:06,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:06,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:53:06,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:53:06,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:53:06,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:53:06,959 INFO L87 Difference]: Start difference. First operand 144 states and 147 transitions. Second operand 3 states. [2018-10-10 14:53:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:07,054 INFO L93 Difference]: Finished difference Result 244 states and 250 transitions. [2018-10-10 14:53:07,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:53:07,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2018-10-10 14:53:07,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:07,058 INFO L225 Difference]: With dead ends: 244 [2018-10-10 14:53:07,058 INFO L226 Difference]: Without dead ends: 244 [2018-10-10 14:53:07,058 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:53:07,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-10-10 14:53:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 147. [2018-10-10 14:53:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-10-10 14:53:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 151 transitions. [2018-10-10 14:53:07,071 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 151 transitions. Word has length 49 [2018-10-10 14:53:07,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:07,071 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 151 transitions. [2018-10-10 14:53:07,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:53:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 151 transitions. [2018-10-10 14:53:07,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-10 14:53:07,073 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:07,073 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:07,074 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:07,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:07,075 INFO L82 PathProgramCache]: Analyzing trace with hash -941542397, now seen corresponding path program 1 times [2018-10-10 14:53:07,075 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:07,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:07,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:07,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:07,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:07,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:07,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:07,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:53:07,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:07,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:07,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:07,329 INFO L87 Difference]: Start difference. First operand 147 states and 151 transitions. Second operand 7 states. [2018-10-10 14:53:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:08,201 INFO L93 Difference]: Finished difference Result 191 states and 197 transitions. [2018-10-10 14:53:08,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:53:08,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-10-10 14:53:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:08,204 INFO L225 Difference]: With dead ends: 191 [2018-10-10 14:53:08,204 INFO L226 Difference]: Without dead ends: 191 [2018-10-10 14:53:08,205 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:53:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-10-10 14:53:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 146. [2018-10-10 14:53:08,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-10-10 14:53:08,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2018-10-10 14:53:08,214 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 52 [2018-10-10 14:53:08,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:08,215 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2018-10-10 14:53:08,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:08,215 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2018-10-10 14:53:08,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-10 14:53:08,217 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:08,217 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] [2018-10-10 14:53:08,218 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:08,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:08,218 INFO L82 PathProgramCache]: Analyzing trace with hash 876956865, now seen corresponding path program 1 times [2018-10-10 14:53:08,218 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:08,219 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:08,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:08,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:08,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:08,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:08,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:08,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:53:08,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:53:08,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:53:08,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:53:08,705 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand 10 states. [2018-10-10 14:53:09,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:09,636 INFO L93 Difference]: Finished difference Result 273 states and 281 transitions. [2018-10-10 14:53:09,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 14:53:09,638 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2018-10-10 14:53:09,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:09,642 INFO L225 Difference]: With dead ends: 273 [2018-10-10 14:53:09,642 INFO L226 Difference]: Without dead ends: 273 [2018-10-10 14:53:09,643 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2018-10-10 14:53:09,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-10-10 14:53:09,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 145. [2018-10-10 14:53:09,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-10-10 14:53:09,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 149 transitions. [2018-10-10 14:53:09,657 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 149 transitions. Word has length 53 [2018-10-10 14:53:09,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:09,658 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 149 transitions. [2018-10-10 14:53:09,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:53:09,661 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 149 transitions. [2018-10-10 14:53:09,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-10 14:53:09,663 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:09,663 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 14:53:09,663 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:09,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:09,666 INFO L82 PathProgramCache]: Analyzing trace with hash 2055217188, now seen corresponding path program 1 times [2018-10-10 14:53:09,666 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:09,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:09,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:09,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:09,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:09,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:09,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:53:09,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:53:09,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:53:09,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:53:09,754 INFO L87 Difference]: Start difference. First operand 145 states and 149 transitions. Second operand 5 states. [2018-10-10 14:53:09,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:09,823 INFO L93 Difference]: Finished difference Result 163 states and 166 transitions. [2018-10-10 14:53:09,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:53:09,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2018-10-10 14:53:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:09,825 INFO L225 Difference]: With dead ends: 163 [2018-10-10 14:53:09,825 INFO L226 Difference]: Without dead ends: 163 [2018-10-10 14:53:09,826 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-10-10 14:53:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 145. [2018-10-10 14:53:09,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-10-10 14:53:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 148 transitions. [2018-10-10 14:53:09,832 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 148 transitions. Word has length 56 [2018-10-10 14:53:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:09,832 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 148 transitions. [2018-10-10 14:53:09,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:53:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 148 transitions. [2018-10-10 14:53:09,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-10 14:53:09,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:09,835 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] [2018-10-10 14:53:09,836 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:09,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:09,836 INFO L82 PathProgramCache]: Analyzing trace with hash -2008264849, now seen corresponding path program 1 times [2018-10-10 14:53:09,836 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:09,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:09,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:09,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:09,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:09,964 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:09,964 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:09,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:10,024 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:10,103 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:10,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-10 14:53:10,146 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c_7.bpl [2018-10-10 14:53:10,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:53:10,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:53:10,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:53:10,151 INFO L87 Difference]: Start difference. First operand 145 states and 148 transitions. Second operand 5 states. [2018-10-10 14:53:10,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:10,405 INFO L93 Difference]: Finished difference Result 258 states and 264 transitions. [2018-10-10 14:53:10,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:53:10,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2018-10-10 14:53:10,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:10,407 INFO L225 Difference]: With dead ends: 258 [2018-10-10 14:53:10,407 INFO L226 Difference]: Without dead ends: 258 [2018-10-10 14:53:10,408 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:10,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-10-10 14:53:10,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 163. [2018-10-10 14:53:10,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-10-10 14:53:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 167 transitions. [2018-10-10 14:53:10,414 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 167 transitions. Word has length 67 [2018-10-10 14:53:10,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:10,415 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 167 transitions. [2018-10-10 14:53:10,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:53:10,415 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 167 transitions. [2018-10-10 14:53:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-10 14:53:10,417 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:10,417 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:10,417 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:10,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:10,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1250173811, now seen corresponding path program 1 times [2018-10-10 14:53:10,418 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:10,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:10,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:10,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:10,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:10,580 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:10,581 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:10,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:10,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:10,817 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:10,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2018-10-10 14:53:10,845 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c_8.bpl [2018-10-10 14:53:10,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:53:10,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:53:10,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:53:10,847 INFO L87 Difference]: Start difference. First operand 163 states and 167 transitions. Second operand 10 states. [2018-10-10 14:53:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:11,092 INFO L93 Difference]: Finished difference Result 181 states and 184 transitions. [2018-10-10 14:53:11,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:53:11,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 74 [2018-10-10 14:53:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:11,094 INFO L225 Difference]: With dead ends: 181 [2018-10-10 14:53:11,095 INFO L226 Difference]: Without dead ends: 181 [2018-10-10 14:53:11,095 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-10-10 14:53:11,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-10-10 14:53:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 163. [2018-10-10 14:53:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-10-10 14:53:11,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 166 transitions. [2018-10-10 14:53:11,100 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 166 transitions. Word has length 74 [2018-10-10 14:53:11,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:11,100 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 166 transitions. [2018-10-10 14:53:11,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:53:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 166 transitions. [2018-10-10 14:53:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-10 14:53:11,102 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:11,103 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:11,103 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:11,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:11,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1031113536, now seen corresponding path program 2 times [2018-10-10 14:53:11,104 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:11,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:11,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:11,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:11,313 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:11,313 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:11,326 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:53:11,379 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-10 14:53:11,379 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:53:11,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-10 14:53:11,547 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:11,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2018-10-10 14:53:11,548 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-10 14:53:11,553 WARN L205 ceAbstractionStarter]: Timeout [2018-10-10 14:53:11,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:53:11 BoogieIcfgContainer [2018-10-10 14:53:11,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:53:11,555 INFO L168 Benchmark]: Toolchain (without parser) took 6770.78 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -335.7 MB). Peak memory consumption was 377.3 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:11,557 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:11,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:11,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:11,559 INFO L168 Benchmark]: Boogie Preprocessor took 31.87 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:11,559 INFO L168 Benchmark]: RCFGBuilder took 1004.46 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -733.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:11,560 INFO L168 Benchmark]: TraceAbstraction took 5376.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 387.3 MB). Peak memory consumption was 387.3 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:11,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.29 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 31.87 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 1004.46 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -733.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5376.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 387.3 MB). Peak memory consumption was 387.3 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 9). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 21). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 16). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line -1). Cancelled while PathProgramDumpController was trying to verify (iteration 9). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 145 locations, 8 error locations. TIMEOUT Result, 5.3s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1197 SDtfs, 2573 SDslu, 1844 SDs, 0 SdLazy, 480 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 150 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 484 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 577 NumberOfCodeBlocks, 577 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 567 ConstructedInterpolants, 0 QuantifiedInterpolants, 77729 SizeOfPredicates, 7 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 0/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Received shutdown request...