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_false-valid-deref_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 11:24:32,107 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 11:24:32,111 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 11:24:32,128 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 11:24:32,128 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 11:24:32,130 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 11:24:32,131 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 11:24:32,134 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 11:24:32,137 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 11:24:32,138 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 11:24:32,141 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 11:24:32,141 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 11:24:32,143 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 11:24:32,150 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 11:24:32,151 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 11:24:32,152 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 11:24:32,155 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 11:24:32,157 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 11:24:32,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 11:24:32,164 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 11:24:32,166 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 11:24:32,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 11:24:32,169 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 11:24:32,169 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 11:24:32,169 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 11:24:32,170 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 11:24:32,171 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 11:24:32,172 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 11:24:32,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 11:24:32,176 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 11:24:32,176 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 11:24:32,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 11:24:32,181 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 11:24:32,210 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 11:24:32,210 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 11:24:32,212 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 11:24:32,213 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 11:24:32,213 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 11:24:32,213 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 11:24:32,213 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 11:24:32,214 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 11:24:32,214 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 11:24:32,214 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 11:24:32,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 11:24:32,214 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 11:24:32,214 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 11:24:32,215 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 11:24:32,215 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 11:24:32,215 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 11:24:32,216 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 11:24:32,216 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 11:24:32,216 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 11:24:32,216 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 11:24:32,216 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 11:24:32,217 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 11:24:32,217 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 11:24:32,217 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 11:24:32,217 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 11:24:32,217 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 11:24:32,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 11:24:32,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 11:24:32,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 11:24:32,304 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 11:24:32,304 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 11:24:32,305 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_strcpy_false-valid-deref_ground.i [2018-10-10 11:24:32,689 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67481e4e5/bef93a7868354c1ea0b8bf5cb363be4d/FLAGddbdf7b87 [2018-10-10 11:24:32,878 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 11:24:32,879 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_strcpy_false-valid-deref_ground.i [2018-10-10 11:24:32,888 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67481e4e5/bef93a7868354c1ea0b8bf5cb363be4d/FLAGddbdf7b87 [2018-10-10 11:24:32,915 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67481e4e5/bef93a7868354c1ea0b8bf5cb363be4d [2018-10-10 11:24:32,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 11:24:32,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 11:24:32,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 11:24:32,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 11:24:32,932 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 11:24:32,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:24:32" (1/1) ... [2018-10-10 11:24:32,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752ceabb 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 11:24:32,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:24:32" (1/1) ... [2018-10-10 11:24:32,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 11:24:32,969 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 11:24:33,149 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:24:33,153 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 11:24:33,176 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:24:33,201 INFO L193 MainTranslator]: Completed translation [2018-10-10 11:24:33,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:24:33 WrapperNode [2018-10-10 11:24:33,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 11:24:33,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 11:24:33,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 11:24:33,203 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 11:24:33,214 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 11:24:33,225 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 11:24:33,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 11:24:33,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 11:24:33,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 11:24:33,263 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 11:24:33,274 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 11:24:33,275 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 11:24:33,279 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 11:24:33,279 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 11:24:33,296 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 11:24:33,301 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 11:24:33,303 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 11:24:33,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 11:24:33,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 11:24:33,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 11:24:33,306 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 11:24:33,308 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 11:24:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 11:24:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 11:24:33,947 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 11:24:33,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:24:33 BoogieIcfgContainer [2018-10-10 11:24:33,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 11:24:33,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 11:24:33,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 11:24:33,952 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 11:24:33,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:24:32" (1/3) ... [2018-10-10 11:24:33,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3f27e9 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 11:24:33,953 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 11:24:33,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3f27e9 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 11:24:33,954 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 11:24:33,956 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_strcpy_false-valid-deref_ground.i [2018-10-10 11:24:33,965 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 11:24:33,973 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-10-10 11:24:33,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-10-10 11:24:34,011 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 11:24:34,012 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 11:24:34,012 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 11:24:34,012 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 11:24:34,012 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 11:24:34,012 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 11:24:34,013 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 11:24:34,013 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 11:24:34,013 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 11:24:34,030 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-10-10 11:24:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-10 11:24:34,039 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:34,040 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-10-10 11:24:34,043 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:24:34,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:34,050 INFO L82 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2018-10-10 11:24:34,052 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:34,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:34,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:34,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:34,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:34,241 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 11:24:34,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:34,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:34,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:34,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:34,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:34,267 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 4 states. [2018-10-10 11:24:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:34,527 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-10-10 11:24:34,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:24:34,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-10-10 11:24:34,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:34,540 INFO L225 Difference]: With dead ends: 36 [2018-10-10 11:24:34,540 INFO L226 Difference]: Without dead ends: 33 [2018-10-10 11:24:34,542 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 11:24:34,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-10 11:24:34,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2018-10-10 11:24:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-10 11:24:34,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-10-10 11:24:34,576 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 5 [2018-10-10 11:24:34,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:34,576 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-10-10 11:24:34,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:34,577 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-10-10 11:24:34,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-10 11:24:34,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:34,577 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-10 11:24:34,578 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:24:34,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:34,579 INFO L82 PathProgramCache]: Analyzing trace with hash 889537478, now seen corresponding path program 1 times [2018-10-10 11:24:34,579 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:34,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:34,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:34,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:34,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:34,844 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 11:24:34,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:34,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:34,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:34,847 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 4 states. [2018-10-10 11:24:35,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:35,093 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-10-10 11:24:35,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:24:35,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-10 11:24:35,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:35,095 INFO L225 Difference]: With dead ends: 63 [2018-10-10 11:24:35,095 INFO L226 Difference]: Without dead ends: 63 [2018-10-10 11:24:35,096 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:24:35,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-10 11:24:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 38. [2018-10-10 11:24:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-10 11:24:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2018-10-10 11:24:35,102 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 6 [2018-10-10 11:24:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:35,102 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2018-10-10 11:24:35,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:35,103 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-10-10 11:24:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-10 11:24:35,103 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:35,103 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:35,104 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:24:35,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:35,104 INFO L82 PathProgramCache]: Analyzing trace with hash -441971574, now seen corresponding path program 1 times [2018-10-10 11:24:35,105 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:35,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:35,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:35,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:35,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:35,167 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 11:24:35,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:35,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:35,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:35,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:35,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:35,170 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 4 states. [2018-10-10 11:24:35,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:35,417 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-10-10 11:24:35,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:24:35,420 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-10 11:24:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:35,421 INFO L225 Difference]: With dead ends: 51 [2018-10-10 11:24:35,422 INFO L226 Difference]: Without dead ends: 51 [2018-10-10 11:24:35,423 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:24:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-10 11:24:35,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 37. [2018-10-10 11:24:35,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-10 11:24:35,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-10-10 11:24:35,430 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 10 [2018-10-10 11:24:35,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:35,431 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-10-10 11:24:35,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:35,433 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-10-10 11:24:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-10 11:24:35,433 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:35,433 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:35,435 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:24:35,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:35,435 INFO L82 PathProgramCache]: Analyzing trace with hash -816216851, now seen corresponding path program 1 times [2018-10-10 11:24:35,435 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:35,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:35,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:35,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:35,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:35,715 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 11:24:35,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:35,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 11:24:35,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 11:24:35,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 11:24:35,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-10 11:24:35,719 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 7 states. [2018-10-10 11:24:36,145 WARN L178 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-10-10 11:24:36,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:36,660 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2018-10-10 11:24:36,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 11:24:36,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-10-10 11:24:36,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:36,663 INFO L225 Difference]: With dead ends: 58 [2018-10-10 11:24:36,663 INFO L226 Difference]: Without dead ends: 58 [2018-10-10 11:24:36,664 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-10-10 11:24:36,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-10-10 11:24:36,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 36. [2018-10-10 11:24:36,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-10 11:24:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-10-10 11:24:36,670 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 11 [2018-10-10 11:24:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:36,670 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-10-10 11:24:36,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 11:24:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-10-10 11:24:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-10 11:24:36,671 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:36,671 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:36,672 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:24:36,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:36,672 INFO L82 PathProgramCache]: Analyzing trace with hash -817753971, now seen corresponding path program 1 times [2018-10-10 11:24:36,673 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:36,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:36,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:36,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:36,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:36,719 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 11:24:36,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:36,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:36,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:36,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:36,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:36,721 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 4 states. [2018-10-10 11:24:36,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:36,792 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2018-10-10 11:24:36,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:24:36,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-10-10 11:24:36,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:36,795 INFO L225 Difference]: With dead ends: 35 [2018-10-10 11:24:36,796 INFO L226 Difference]: Without dead ends: 35 [2018-10-10 11:24:36,796 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 11:24:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-10 11:24:36,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-10-10 11:24:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-10 11:24:36,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-10-10 11:24:36,800 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 11 [2018-10-10 11:24:36,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:36,801 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-10-10 11:24:36,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:36,801 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-10-10 11:24:36,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-10 11:24:36,802 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:36,802 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:36,803 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:24:36,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:36,803 INFO L82 PathProgramCache]: Analyzing trace with hash 419429498, now seen corresponding path program 1 times [2018-10-10 11:24:36,803 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:36,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:36,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:36,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:36,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:36,931 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 11:24:36,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:36,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:24:36,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:24:36,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:24:36,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:36,933 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 4 states. [2018-10-10 11:24:37,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:37,013 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-10-10 11:24:37,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:24:37,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-10 11:24:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:37,014 INFO L225 Difference]: With dead ends: 34 [2018-10-10 11:24:37,014 INFO L226 Difference]: Without dead ends: 32 [2018-10-10 11:24:37,015 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:24:37,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-10 11:24:37,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-10-10 11:24:37,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-10 11:24:37,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-10-10 11:24:37,019 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 12 [2018-10-10 11:24:37,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:37,019 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-10-10 11:24:37,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:24:37,020 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-10-10 11:24:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-10 11:24:37,020 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:37,021 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:37,021 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:24:37,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:37,022 INFO L82 PathProgramCache]: Analyzing trace with hash 419430747, now seen corresponding path program 1 times [2018-10-10 11:24:37,022 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:37,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:37,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:37,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:37,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:37,215 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 11:24:37,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:24:37,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 11:24:37,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 11:24:37,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 11:24:37,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 11:24:37,217 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 7 states. [2018-10-10 11:24:37,518 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-10 11:24:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:24:37,769 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2018-10-10 11:24:37,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 11:24:37,770 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-10-10 11:24:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:24:37,771 INFO L225 Difference]: With dead ends: 43 [2018-10-10 11:24:37,771 INFO L226 Difference]: Without dead ends: 43 [2018-10-10 11:24:37,772 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-10-10 11:24:37,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-10 11:24:37,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2018-10-10 11:24:37,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-10 11:24:37,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2018-10-10 11:24:37,776 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 12 [2018-10-10 11:24:37,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:24:37,777 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2018-10-10 11:24:37,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 11:24:37,777 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-10-10 11:24:37,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-10 11:24:37,778 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:24:37,778 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:24:37,779 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:24:37,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:24:37,780 INFO L82 PathProgramCache]: Analyzing trace with hash -871090319, now seen corresponding path program 1 times [2018-10-10 11:24:37,780 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:24:37,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:24:37,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:37,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:37,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:24:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:37,968 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 11:24:38,093 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 11:24:38,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 11:24:38,094 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 11:24:38,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:24:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:24:38,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:24:38,212 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 11:24:38,212 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:24:38,241 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 11:24:38,247 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 11:24:38,248 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-10 11:24:38,258 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:24:38,272 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 11:24:38,273 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:24, output treesize:12 [2018-10-10 11:24:38,375 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 11:24:38,397 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 11:24:38,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2018-10-10 11:24:38,442 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 ULTIMATE.start_main_~#src~0.base's outvar occurs in several conjuncts [(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|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1| 1)), (= |v_ULTIMATE.start_main_~#dst~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (= v_ULTIMATE.start_main_~i~0_1 0), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_1| 400000) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_main_old_#valid_2| |v_#valid_6|), (= |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|)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 400000), (= (select |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1|) 0), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_4|), (= |v_ULTIMATE.start_main_~#src~0.offset_1| 0), (= |v_ULTIMATE.start_main_~#dst~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (not (= |v_ULTIMATE.start_main_~#src~0.base_1| 0))] at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) 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 11:24:38,448 INFO L168 Benchmark]: Toolchain (without parser) took 5522.23 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -551.0 MB). Peak memory consumption was 190.8 MB. Max. memory is 7.1 GB. [2018-10-10 11:24:38,450 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:24:38,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.10 ms. Allocated memory is still 1.6 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 11:24:38,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.15 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:24:38,454 INFO L168 Benchmark]: Boogie Preprocessor took 43.92 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:24:38,455 INFO L168 Benchmark]: RCFGBuilder took 642.27 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-10-10 11:24:38,459 INFO L168 Benchmark]: TraceAbstraction took 4498.51 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 216.2 MB). Peak memory consumption was 216.2 MB. Max. memory is 7.1 GB. [2018-10-10 11:24:38,470 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.10 ms. Allocated memory is still 1.6 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 58.15 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.92 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 642.27 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4498.51 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 216.2 MB). Peak memory consumption was 216.2 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 ULTIMATE.start_main_~#src~0.base's outvar occurs in several conjuncts [(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|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1| 1)), (= |v_ULTIMATE.start_main_~#dst~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (= v_ULTIMATE.start_main_~i~0_1 0), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_1| 400000) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_main_old_#valid_2| |v_#valid_6|), (= |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|)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 400000), (= (select |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1|) 0), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_4|), (= |v_ULTIMATE.start_main_~#src~0.offset_1| 0), (= |v_ULTIMATE.start_main_~#dst~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (not (= |v_ULTIMATE.start_main_~#src~0.base_1| 0))] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_~#src~0.base's outvar occurs in several conjuncts [(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|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1| 1)), (= |v_ULTIMATE.start_main_~#dst~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|), (= v_ULTIMATE.start_main_~i~0_1 0), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#src~0.base_1| 400000) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_main_old_#valid_2| |v_#valid_6|), (= |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|)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 400000), (= (select |v_#valid_6| |v_ULTIMATE.start_main_~#src~0.base_1|) 0), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_4|), (= |v_ULTIMATE.start_main_~#src~0.offset_1| 0), (= |v_ULTIMATE.start_main_~#dst~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (not (= |v_ULTIMATE.start_main_~#src~0.base_1| 0))]: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...