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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/standard_strcpy_original_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 11:24:32,154 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 11:24:32,156 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 11:24:32,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 11:24:32,173 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 11:24:32,174 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 11:24:32,175 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 11:24:32,177 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 11:24:32,178 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 11:24:32,179 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 11:24:32,180 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 11:24:32,180 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 11:24:32,181 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 11:24:32,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 11:24:32,188 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 11:24:32,190 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 11:24:32,191 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 11:24:32,196 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 11:24:32,201 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 11:24:32,203 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 11:24:32,207 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 11:24:32,208 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 11:24:32,212 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 11:24:32,213 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 11:24:32,213 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 11:24:32,214 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 11:24:32,217 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 11:24:32,218 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 11:24:32,219 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 11:24:32,223 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 11:24:32,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 11:24:32,224 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 11:24:32,230 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 11:24:32,262 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 11:24:32,263 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 11:24:32,264 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 11:24:32,264 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 11:24:32,264 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 11:24:32,265 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 11:24:32,265 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 11:24:32,265 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 11:24:32,265 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 11:24:32,265 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 11:24:32,266 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 11:24:32,267 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 11:24:32,267 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 11:24:32,267 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 11:24:32,267 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 11:24:32,268 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 11:24:32,268 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 11:24:32,268 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 11:24:32,268 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 11:24:32,268 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 11:24:32,269 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 11:24:32,271 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 11:24:32,271 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 11:24:32,271 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 11:24:32,271 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 11:24:32,271 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 [2018-10-10 11:24:32,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 11:24:32,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 11:24:32,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 11:24:32,373 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 11:24:32,373 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 11:24:32,374 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_strcpy_original_false-valid-deref.i [2018-10-10 11:24:32,671 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445a04cab/48308ed468f84c9b9ff8583d3439f25e/FLAG393dd271c [2018-10-10 11:24:32,876 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 11:24:32,877 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_strcpy_original_false-valid-deref.i [2018-10-10 11:24:32,884 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445a04cab/48308ed468f84c9b9ff8583d3439f25e/FLAG393dd271c [2018-10-10 11:24:32,906 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445a04cab/48308ed468f84c9b9ff8583d3439f25e [2018-10-10 11:24:32,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 11:24:32,921 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 11:24:32,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 11:24:32,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 11:24:32,927 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 11:24:32,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:24:32" (1/1) ... [2018-10-10 11:24:32,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57750841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:32, skipping insertion in model container [2018-10-10 11:24:32,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:24:32" (1/1) ... [2018-10-10 11:24:32,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 11:24:32,963 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 11:24:33,152 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:24:33,157 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 11:24:33,180 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:24:33,204 INFO L193 MainTranslator]: Completed translation [2018-10-10 11:24:33,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33 WrapperNode [2018-10-10 11:24:33,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 11:24:33,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 11:24:33,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 11:24:33,206 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 11:24:33,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 11:24:33,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 11:24:33,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 11:24:33,258 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 11:24:33,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (1/1) ... [2018-10-10 11:24:33,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 11:24:33,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 11:24:33,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 11:24:33,289 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 11:24:33,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (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 11:24:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 11:24:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 11:24:33,958 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 11:24:33,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:24:33 BoogieIcfgContainer [2018-10-10 11:24:33,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 11:24:33,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 11:24:33,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 11:24:33,963 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 11:24:33,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:24:32" (1/3) ... [2018-10-10 11:24:33,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f48cc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:24:33, skipping insertion in model container [2018-10-10 11:24:33,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33" (2/3) ... [2018-10-10 11:24:33,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f48cc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:24:33, skipping insertion in model container [2018-10-10 11:24:33,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:24:33" (3/3) ... [2018-10-10 11:24:33,967 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_strcpy_original_false-valid-deref.i [2018-10-10 11:24:33,978 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 11:24:33,986 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-10-10 11:24:34,003 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2018-10-10 11:24:34,032 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 11:24:34,033 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 11:24:34,033 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 11:24:34,033 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 11:24:34,034 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 11:24:34,034 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 11:24:34,034 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 11:24:34,034 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 11:24:34,034 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 11:24:34,052 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-10-10 11:24:34,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-10 11:24:34,061 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:34,062 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-10-10 11:24:34,065 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:24:34,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:34,074 INFO L82 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2018-10-10 11:24:34,076 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:34,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:34,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:34,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:34,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:34,285 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 11:24:34,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:34,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:34,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:34,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:34,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:34,310 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 4 states. [2018-10-10 11:24:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:34,666 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-10-10 11:24:34,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:24:34,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-10-10 11:24:34,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:34,681 INFO L225 Difference]: With dead ends: 39 [2018-10-10 11:24:34,681 INFO L226 Difference]: Without dead ends: 36 [2018-10-10 11:24:34,683 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:24:34,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-10 11:24:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-10-10 11:24:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-10 11:24:34,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-10-10 11:24:34,726 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 5 [2018-10-10 11:24:34,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:34,727 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-10-10 11:24:34,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:34,727 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-10-10 11:24:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-10 11:24:34,728 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:34,728 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-10 11:24:34,729 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:24:34,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:34,730 INFO L82 PathProgramCache]: Analyzing trace with hash 889537478, now seen corresponding path program 1 times [2018-10-10 11:24:34,730 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:34,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:34,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:34,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:34,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:34,845 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 11:24:34,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:34,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:34,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:34,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:34,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:34,849 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 4 states. [2018-10-10 11:24:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:35,240 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2018-10-10 11:24:35,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:24:35,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-10 11:24:35,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:35,246 INFO L225 Difference]: With dead ends: 66 [2018-10-10 11:24:35,247 INFO L226 Difference]: Without dead ends: 66 [2018-10-10 11:24:35,249 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:24:35,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-10-10 11:24:35,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 51. [2018-10-10 11:24:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-10 11:24:35,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2018-10-10 11:24:35,262 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 6 [2018-10-10 11:24:35,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:35,263 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2018-10-10 11:24:35,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:35,263 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2018-10-10 11:24:35,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-10 11:24:35,264 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:35,264 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:35,267 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:24:35,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:35,268 INFO L82 PathProgramCache]: Analyzing trace with hash -441971574, now seen corresponding path program 1 times [2018-10-10 11:24:35,268 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:35,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:35,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:35,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:35,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:35,383 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 11:24:35,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:35,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:35,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:35,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:35,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:35,385 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 4 states. [2018-10-10 11:24:35,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:35,536 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2018-10-10 11:24:35,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:24:35,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-10 11:24:35,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:35,540 INFO L225 Difference]: With dead ends: 66 [2018-10-10 11:24:35,540 INFO L226 Difference]: Without dead ends: 66 [2018-10-10 11:24:35,541 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:24:35,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-10-10 11:24:35,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 50. [2018-10-10 11:24:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-10 11:24:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-10-10 11:24:35,558 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 10 [2018-10-10 11:24:35,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:35,559 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-10-10 11:24:35,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-10-10 11:24:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-10 11:24:35,560 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:35,561 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:35,562 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:24:35,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:35,562 INFO L82 PathProgramCache]: Analyzing trace with hash -816216851, now seen corresponding path program 1 times [2018-10-10 11:24:35,563 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:35,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:35,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:35,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:35,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:35,687 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 11:24:35,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:35,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:35,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:35,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:35,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:35,689 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 4 states. [2018-10-10 11:24:36,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:36,227 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2018-10-10 11:24:36,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:24:36,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-10-10 11:24:36,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:36,230 INFO L225 Difference]: With dead ends: 85 [2018-10-10 11:24:36,230 INFO L226 Difference]: Without dead ends: 85 [2018-10-10 11:24:36,231 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:24:36,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-10 11:24:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 52. [2018-10-10 11:24:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-10 11:24:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-10-10 11:24:36,237 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 11 [2018-10-10 11:24:36,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:36,237 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-10-10 11:24:36,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-10-10 11:24:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-10 11:24:36,238 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:36,239 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:36,239 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:24:36,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:36,240 INFO L82 PathProgramCache]: Analyzing trace with hash -656838406, now seen corresponding path program 1 times [2018-10-10 11:24:36,240 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:36,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:36,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:36,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:36,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:36,303 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 11:24:36,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:36,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:36,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:36,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:36,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:36,306 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 4 states. [2018-10-10 11:24:36,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:36,407 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-10-10 11:24:36,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:24:36,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-10 11:24:36,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:36,416 INFO L225 Difference]: With dead ends: 51 [2018-10-10 11:24:36,416 INFO L226 Difference]: Without dead ends: 51 [2018-10-10 11:24:36,417 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:24:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-10 11:24:36,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-10-10 11:24:36,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-10 11:24:36,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-10-10 11:24:36,429 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 14 [2018-10-10 11:24:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:36,429 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-10-10 11:24:36,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:36,430 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-10-10 11:24:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-10 11:24:36,430 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:36,431 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:36,431 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:24:36,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:36,432 INFO L82 PathProgramCache]: Analyzing trace with hash -871090319, now seen corresponding path program 1 times [2018-10-10 11:24:36,432 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:36,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:36,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:36,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:36,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:24:36,671 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 11:24:36,671 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 11:24:36,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:36,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:24:36,900 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-10 11:24:36,941 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-10-10 11:24:36,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:24:37,069 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-10-10 11:24:37,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-10-10 11:24:37,078 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-10 11:24:37,112 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:24:37,128 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:24:37,129 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:24, output treesize:12 [2018-10-10 11:24:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:24:37,254 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 11:24:37,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2018-10-10 11:24:37,281 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#dst~0.offset_3| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_6|), (= (select |v_#valid_8| |v_ULTIMATE.start_main_~#src~0.base_3|) 0), (= |v_ULTIMATE.start_main_~#src~0.offset_3| 0), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_8|), (= v_ULTIMATE.start_main_~i~0_1 0), (= |v_ULTIMATE.start_main_~#dst~0.base_3| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (= |v_ULTIMATE.start_main_~#dst~0.offset_3| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (not (= |v_ULTIMATE.start_main_~#src~0.base_3| 0)), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_3| 400000) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 400000), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_8| |v_ULTIMATE.start_main_~#src~0.base_3| 1))] at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.extractUpdateRhs(SimultaneousUpdate.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:104) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.addStatementsAndVariables(PathProgramDumper.java:634) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructTransitionStatements(PathProgramDumper.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.processTransition(PathProgramDumper.java:521) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructProcedureStatements(PathProgramDumper.java:489) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructNewImplementation(PathProgramDumper.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.(PathProgramDumper.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.doDump(PathProgramDumpController.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.reportPathProgram(PathProgramDumpController.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-10 11:24:37,285 INFO L168 Benchmark]: Toolchain (without parser) took 4365.13 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -595.9 MB). Peak memory consumption was 129.2 MB. Max. memory is 7.1 GB. [2018-10-10 11:24:37,286 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:24:37,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.56 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 11:24:37,288 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.56 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 11:24:37,288 INFO L168 Benchmark]: Boogie Preprocessor took 30.96 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 11:24:37,289 INFO L168 Benchmark]: RCFGBuilder took 669.56 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -740.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-10-10 11:24:37,290 INFO L168 Benchmark]: TraceAbstraction took 3324.57 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 133.9 MB). Peak memory consumption was 133.9 MB. Max. memory is 7.1 GB. [2018-10-10 11:24:37,295 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 283.56 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 51.56 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 30.96 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 669.56 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -740.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3324.57 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 133.9 MB). Peak memory consumption was 133.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#dst~0.offset_3| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_6|), (= (select |v_#valid_8| |v_ULTIMATE.start_main_~#src~0.base_3|) 0), (= |v_ULTIMATE.start_main_~#src~0.offset_3| 0), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_8|), (= v_ULTIMATE.start_main_~i~0_1 0), (= |v_ULTIMATE.start_main_~#dst~0.base_3| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (= |v_ULTIMATE.start_main_~#dst~0.offset_3| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (not (= |v_ULTIMATE.start_main_~#src~0.base_3| 0)), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_3| 400000) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 400000), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_8| |v_ULTIMATE.start_main_~#src~0.base_3| 1))] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#dst~0.offset_3| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_6|), (= (select |v_#valid_8| |v_ULTIMATE.start_main_~#src~0.base_3|) 0), (= |v_ULTIMATE.start_main_~#src~0.offset_3| 0), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_8|), (= v_ULTIMATE.start_main_~i~0_1 0), (= |v_ULTIMATE.start_main_~#dst~0.base_3| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (= |v_ULTIMATE.start_main_~#dst~0.offset_3| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (not (= |v_ULTIMATE.start_main_~#src~0.base_3| 0)), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_3| 400000) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 400000), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_8| |v_ULTIMATE.start_main_~#src~0.base_3| 1))]: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...