java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:41:53,010 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:41:53,012 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:41:53,030 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:41:53,030 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:41:53,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:41:53,035 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:41:53,037 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:41:53,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:41:53,041 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:41:53,043 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:41:53,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:41:53,045 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:41:53,046 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:41:53,047 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:41:53,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:41:53,051 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:41:53,063 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:41:53,065 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:41:53,068 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:41:53,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:41:53,072 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:41:53,076 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:41:53,076 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:41:53,076 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:41:53,080 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:41:53,081 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:41:53,082 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:41:53,083 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:41:53,083 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:41:53,084 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:41:53,084 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:41:53,084 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:41:53,085 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:41:53,086 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:41:53,086 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:41:53,086 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:41:53,101 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:41:53,101 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:41:53,102 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:41:53,102 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:41:53,103 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:41:53,103 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:41:53,103 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:41:53,103 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:41:53,103 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:41:53,104 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:41:53,104 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:41:53,104 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:41:53,104 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:41:53,104 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:41:53,105 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:41:53,105 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:41:53,105 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:41:53,105 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:41:53,106 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:41:53,106 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:41:53,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:41:53,106 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:41:53,106 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:41:53,106 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:41:53,107 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:41:53,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:41:53,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:41:53,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:41:53,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:41:53,186 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:41:53,186 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:41:53,187 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:53,533 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eeee2e37/328291e6a28f40db9705d38e11e9b4da/FLAG0539b927a [2018-10-10 14:41:53,796 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:41:53,799 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:53,811 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eeee2e37/328291e6a28f40db9705d38e11e9b4da/FLAG0539b927a [2018-10-10 14:41:53,825 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eeee2e37/328291e6a28f40db9705d38e11e9b4da [2018-10-10 14:41:53,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:41:53,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:41:53,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:53,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:41:53,840 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:41:53,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:53" (1/1) ... [2018-10-10 14:41:53,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fd9a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:53, skipping insertion in model container [2018-10-10 14:41:53,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:53" (1/1) ... [2018-10-10 14:41:53,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:41:53,900 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:41:54,154 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:54,167 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:41:54,220 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:54,285 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:41:54,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54 WrapperNode [2018-10-10 14:41:54,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:54,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:54,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:41:54,288 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:41:54,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:54,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:41:54,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:41:54,347 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:41:54,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... [2018-10-10 14:41:54,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:41:54,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:41:54,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:41:54,377 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:41:54,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:41:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:41:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:41:55,340 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:41:55,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:55 BoogieIcfgContainer [2018-10-10 14:41:55,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:41:55,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:41:55,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:41:55,346 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:41:55,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:41:53" (1/3) ... [2018-10-10 14:41:55,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bd94c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:55, skipping insertion in model container [2018-10-10 14:41:55,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:54" (2/3) ... [2018-10-10 14:41:55,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bd94c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:55, skipping insertion in model container [2018-10-10 14:41:55,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:55" (3/3) ... [2018-10-10 14:41:55,349 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array-alloca_true-valid-memsafety_true-termination.i [2018-10-10 14:41:55,359 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:41:55,368 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-10-10 14:41:55,386 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-10-10 14:41:55,414 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:41:55,415 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:41:55,415 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:41:55,415 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:41:55,415 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:41:55,416 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:41:55,416 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:41:55,416 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:41:55,416 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:41:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2018-10-10 14:41:55,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-10 14:41:55,448 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:55,449 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:55,451 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:41:55,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:55,457 INFO L82 PathProgramCache]: Analyzing trace with hash -2048297135, now seen corresponding path program 1 times [2018-10-10 14:41:55,460 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:55,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:55,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:55,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:55,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:55,556 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:41:55,557 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:41:55,557 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:41:55,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:55,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:55,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:41:55,685 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:55,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:41:55,704 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-10 14:41:55,862 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:41:55,864 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:41:55,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-10 14:41:55,866 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:55,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-10 14:41:55,878 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-10-10 14:41:56,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:56,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:56,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:41:56,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:41:56,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:41:56,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:41:56,209 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 9 states. [2018-10-10 14:41:56,700 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-10-10 14:41:57,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:57,394 INFO L93 Difference]: Finished difference Result 163 states and 169 transitions. [2018-10-10 14:41:57,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 14:41:57,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-10-10 14:41:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:57,410 INFO L225 Difference]: With dead ends: 163 [2018-10-10 14:41:57,410 INFO L226 Difference]: Without dead ends: 158 [2018-10-10 14:41:57,412 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2018-10-10 14:41:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-10-10 14:41:57,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 129. [2018-10-10 14:41:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-10-10 14:41:57,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 133 transitions. [2018-10-10 14:41:57,456 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 133 transitions. Word has length 53 [2018-10-10 14:41:57,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:57,458 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 133 transitions. [2018-10-10 14:41:57,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:41:57,458 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 133 transitions. [2018-10-10 14:41:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-10 14:41:57,460 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:57,460 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:57,461 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:41:57,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:57,461 INFO L82 PathProgramCache]: Analyzing trace with hash -223470388, now seen corresponding path program 1 times [2018-10-10 14:41:57,462 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:57,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:57,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:57,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:57,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:57,471 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:41:57,471 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:41:57,471 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:41:57,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:57,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:57,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:57,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:57,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:41:57,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 14:41:57,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 14:41:57,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:41:57,615 INFO L87 Difference]: Start difference. First operand 129 states and 133 transitions. Second operand 4 states. [2018-10-10 14:41:57,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:57,714 INFO L93 Difference]: Finished difference Result 146 states and 150 transitions. [2018-10-10 14:41:57,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 14:41:57,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-10-10 14:41:57,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:57,718 INFO L225 Difference]: With dead ends: 146 [2018-10-10 14:41:57,719 INFO L226 Difference]: Without dead ends: 146 [2018-10-10 14:41:57,720 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:41:57,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-10-10 14:41:57,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 131. [2018-10-10 14:41:57,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-10 14:41:57,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 135 transitions. [2018-10-10 14:41:57,731 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 135 transitions. Word has length 54 [2018-10-10 14:41:57,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:57,731 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 135 transitions. [2018-10-10 14:41:57,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 14:41:57,732 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 135 transitions. [2018-10-10 14:41:57,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-10 14:41:57,733 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:57,734 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:57,734 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:41:57,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:57,735 INFO L82 PathProgramCache]: Analyzing trace with hash 927298379, now seen corresponding path program 1 times [2018-10-10 14:41:57,735 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:57,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:57,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:57,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:57,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:57,744 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:41:57,744 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:41:57,744 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:41:57,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:57,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:41:57,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:41:57,884 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:57,896 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-10 14:41:57,897 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-10-10 14:41:57,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:41:57,963 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:57,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-10 14:41:57,977 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:19 [2018-10-10 14:41:58,131 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:41:58,143 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:41:58,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-10-10 14:41:58,145 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:58,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-10 14:41:58,161 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:18 [2018-10-10 14:41:58,263 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 14 treesize of output 17 [2018-10-10 14:41:58,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:41:58,318 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-10 14:41:58,318 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:24, output treesize:14 [2018-10-10 14:41:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:58,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:58,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 14:41:58,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:41:58,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:41:58,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:41:58,475 INFO L87 Difference]: Start difference. First operand 131 states and 135 transitions. Second operand 14 states. [2018-10-10 14:41:59,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:59,954 INFO L93 Difference]: Finished difference Result 187 states and 192 transitions. [2018-10-10 14:41:59,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-10 14:41:59,955 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2018-10-10 14:41:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:59,958 INFO L225 Difference]: With dead ends: 187 [2018-10-10 14:41:59,958 INFO L226 Difference]: Without dead ends: 187 [2018-10-10 14:41:59,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2018-10-10 14:41:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-10-10 14:41:59,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 137. [2018-10-10 14:41:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-10-10 14:41:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 141 transitions. [2018-10-10 14:41:59,970 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 141 transitions. Word has length 54 [2018-10-10 14:41:59,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:59,971 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 141 transitions. [2018-10-10 14:41:59,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:41:59,971 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 141 transitions. [2018-10-10 14:41:59,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-10 14:41:59,973 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:59,974 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:59,974 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:41:59,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:59,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1005617340, now seen corresponding path program 1 times [2018-10-10 14:41:59,975 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:59,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:59,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:59,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:59,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:59,983 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:41:59,983 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:41:59,983 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:41:59,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:00,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:42:00,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:42:00,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:42:00,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:42:00,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:42:00,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:42:00,128 INFO L87 Difference]: Start difference. First operand 137 states and 141 transitions. Second operand 8 states. [2018-10-10 14:42:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:00,248 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2018-10-10 14:42:00,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 14:42:00,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-10-10 14:42:00,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:00,250 INFO L225 Difference]: With dead ends: 122 [2018-10-10 14:42:00,250 INFO L226 Difference]: Without dead ends: 122 [2018-10-10 14:42:00,251 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2018-10-10 14:42:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-10-10 14:42:00,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-10-10 14:42:00,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-10-10 14:42:00,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 125 transitions. [2018-10-10 14:42:00,259 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 125 transitions. Word has length 61 [2018-10-10 14:42:00,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:00,259 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 125 transitions. [2018-10-10 14:42:00,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:42:00,260 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 125 transitions. [2018-10-10 14:42:00,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-10 14:42:00,262 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:00,262 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:00,263 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:42:00,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:00,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1761259487, now seen corresponding path program 1 times [2018-10-10 14:42:00,263 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:00,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:00,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:00,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:00,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:00,271 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:42:00,271 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:42:00,271 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:42:00,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:00,323 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:42:00,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:42:00,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:42:00,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:42:00,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:42:00,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:42:00,571 INFO L87 Difference]: Start difference. First operand 122 states and 125 transitions. Second operand 5 states. [2018-10-10 14:42:00,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:00,978 INFO L93 Difference]: Finished difference Result 154 states and 157 transitions. [2018-10-10 14:42:00,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:42:00,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2018-10-10 14:42:00,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:00,981 INFO L225 Difference]: With dead ends: 154 [2018-10-10 14:42:00,981 INFO L226 Difference]: Without dead ends: 154 [2018-10-10 14:42:00,982 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:42:00,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-10-10 14:42:00,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 121. [2018-10-10 14:42:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-10-10 14:42:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 124 transitions. [2018-10-10 14:42:00,989 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 124 transitions. Word has length 71 [2018-10-10 14:42:00,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:00,990 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 124 transitions. [2018-10-10 14:42:00,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:42:00,990 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 124 transitions. [2018-10-10 14:42:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-10 14:42:00,992 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:00,993 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:00,993 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:42:00,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:00,994 INFO L82 PathProgramCache]: Analyzing trace with hash -610490720, now seen corresponding path program 1 times [2018-10-10 14:42:00,994 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:00,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:00,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:00,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:00,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:01,002 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:42:01,002 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:42:01,002 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:42:01,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:01,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:01,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:01,058 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,066 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-10-10 14:42:01,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:01,106 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,119 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-10-10 14:42:01,226 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:42:01,229 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:42:01,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-10-10 14:42:01,230 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,239 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,240 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:15 [2018-10-10 14:42:01,275 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 14 treesize of output 17 [2018-10-10 14:42:01,276 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:01,297 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:11 [2018-10-10 14:42:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:42:01,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 14:42:01,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-10 14:42:01,547 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/mult_array-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-10 14:42:01,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-10 14:42:01,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-10 14:42:01,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-10-10 14:42:01,553 INFO L87 Difference]: Start difference. First operand 121 states and 124 transitions. Second operand 17 states. [2018-10-10 14:42:03,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:03,601 INFO L93 Difference]: Finished difference Result 128 states and 131 transitions. [2018-10-10 14:42:03,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-10 14:42:03,602 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 71 [2018-10-10 14:42:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:03,603 INFO L225 Difference]: With dead ends: 128 [2018-10-10 14:42:03,604 INFO L226 Difference]: Without dead ends: 128 [2018-10-10 14:42:03,605 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=189, Invalid=867, Unknown=0, NotChecked=0, Total=1056 [2018-10-10 14:42:03,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-10-10 14:42:03,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 114. [2018-10-10 14:42:03,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-10-10 14:42:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 117 transitions. [2018-10-10 14:42:03,610 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 117 transitions. Word has length 71 [2018-10-10 14:42:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:03,610 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 117 transitions. [2018-10-10 14:42:03,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-10 14:42:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 117 transitions. [2018-10-10 14:42:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-10 14:42:03,613 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:03,613 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:03,613 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:42:03,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:03,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1235530904, now seen corresponding path program 1 times [2018-10-10 14:42:03,614 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:03,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:03,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:03,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:03,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:03,621 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:42:03,621 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:42:03,621 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:42:03,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:03,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:04,764 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-10 14:42:05,088 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-10 14:42:05,716 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 23 [2018-10-10 14:42:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:42:05,752 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 14:42:05,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-10 14:42:05,776 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/mult_array-alloca_true-valid-memsafety_true-termination.i_7.bpl [2018-10-10 14:42:05,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 14:42:05,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 14:42:05,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:42:05,779 INFO L87 Difference]: Start difference. First operand 114 states and 117 transitions. Second operand 13 states. [2018-10-10 14:42:06,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:06,942 INFO L93 Difference]: Finished difference Result 212 states and 216 transitions. [2018-10-10 14:42:06,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-10 14:42:06,942 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2018-10-10 14:42:06,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:06,944 INFO L225 Difference]: With dead ends: 212 [2018-10-10 14:42:06,944 INFO L226 Difference]: Without dead ends: 212 [2018-10-10 14:42:06,945 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2018-10-10 14:42:06,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-10-10 14:42:06,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 158. [2018-10-10 14:42:06,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-10-10 14:42:06,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 165 transitions. [2018-10-10 14:42:06,951 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 165 transitions. Word has length 72 [2018-10-10 14:42:06,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:06,951 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 165 transitions. [2018-10-10 14:42:06,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 14:42:06,951 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 165 transitions. [2018-10-10 14:42:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-10 14:42:06,953 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:06,953 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:06,954 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:42:06,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:06,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1355693790, now seen corresponding path program 1 times [2018-10-10 14:42:06,954 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:06,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:06,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:06,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:06,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:06,961 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:42:06,962 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:42:06,962 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:42:06,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:07,008 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:07,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:07,015 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:07,020 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:07,020 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-10 14:42:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:42:07,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:42:07,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:42:07,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:42:07,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:42:07,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:42:07,081 INFO L87 Difference]: Start difference. First operand 158 states and 165 transitions. Second operand 6 states. [2018-10-10 14:42:07,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:07,270 INFO L93 Difference]: Finished difference Result 157 states and 163 transitions. [2018-10-10 14:42:07,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:42:07,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2018-10-10 14:42:07,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:07,273 INFO L225 Difference]: With dead ends: 157 [2018-10-10 14:42:07,273 INFO L226 Difference]: Without dead ends: 157 [2018-10-10 14:42:07,274 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:42:07,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-10-10 14:42:07,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-10-10 14:42:07,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-10-10 14:42:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2018-10-10 14:42:07,278 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 82 [2018-10-10 14:42:07,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:07,278 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2018-10-10 14:42:07,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:42:07,278 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2018-10-10 14:42:07,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-10 14:42:07,280 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:07,280 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:07,280 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:42:07,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:07,281 INFO L82 PathProgramCache]: Analyzing trace with hash -923165304, now seen corresponding path program 1 times [2018-10-10 14:42:07,281 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:07,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:07,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:07,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:07,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:07,288 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:42:07,288 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:42:07,288 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:42:07,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:07,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:07,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:07,365 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:07,376 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:07,376 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:13 [2018-10-10 14:42:07,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:42:07,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:42:07,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:42:07,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:42:07,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:42:07,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:42:07,662 INFO L87 Difference]: Start difference. First operand 157 states and 163 transitions. Second operand 10 states. [2018-10-10 14:42:08,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:08,294 INFO L93 Difference]: Finished difference Result 275 states and 283 transitions. [2018-10-10 14:42:08,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 14:42:08,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2018-10-10 14:42:08,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:08,297 INFO L225 Difference]: With dead ends: 275 [2018-10-10 14:42:08,297 INFO L226 Difference]: Without dead ends: 275 [2018-10-10 14:42:08,298 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380 [2018-10-10 14:42:08,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-10-10 14:42:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 191. [2018-10-10 14:42:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-10-10 14:42:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 200 transitions. [2018-10-10 14:42:08,304 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 200 transitions. Word has length 83 [2018-10-10 14:42:08,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:08,304 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 200 transitions. [2018-10-10 14:42:08,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:42:08,304 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 200 transitions. [2018-10-10 14:42:08,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-10 14:42:08,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:08,306 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:08,306 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:42:08,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:08,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1581812733, now seen corresponding path program 1 times [2018-10-10 14:42:08,306 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:08,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:08,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:08,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:08,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:08,317 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:42:08,317 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:42:08,317 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:42:08,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:08,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:08,535 WARN L854 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_ULTIMATE.dealloc_~addr.base Int)) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid| ULTIMATE.start_ULTIMATE.dealloc_~addr.base 1))) (and (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_#t~malloc5.base| 1) ULTIMATE.start_ULTIMATE.dealloc_~addr.base 0)) (= (select |c_ULTIMATE.start_main_old_#valid| ULTIMATE.start_ULTIMATE.dealloc_~addr.base) 0) (= (select .cse0 |c_ULTIMATE.start_main_#t~malloc5.base|) 0)))) is different from true [2018-10-10 14:42:08,540 WARN L854 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_ULTIMATE.dealloc_~addr.base Int)) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid| ULTIMATE.start_ULTIMATE.dealloc_~addr.base 1))) (and (= |c_ULTIMATE.start_ULTIMATE.dealloc_old_#valid| (store (store .cse0 |c_ULTIMATE.start_main_#t~malloc5.base| 1) ULTIMATE.start_ULTIMATE.dealloc_~addr.base 0)) (= (select |c_ULTIMATE.start_main_old_#valid| ULTIMATE.start_ULTIMATE.dealloc_~addr.base) 0) (= (select .cse0 |c_ULTIMATE.start_main_#t~malloc5.base|) 0)))) is different from true [2018-10-10 14:42:08,544 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_subst_1 Int)) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid| v_subst_1 1))) (and (= (select .cse0 c_ULTIMATE.start_ULTIMATE.dealloc_~addr.base) 0) (= (select |c_ULTIMATE.start_main_old_#valid| v_subst_1) 0) (= |c_ULTIMATE.start_ULTIMATE.dealloc_old_#valid| (store (store .cse0 c_ULTIMATE.start_ULTIMATE.dealloc_~addr.base 1) v_subst_1 0))))) is different from true [2018-10-10 14:42:08,580 WARN L854 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_ULTIMATE.dealloc_~addr.base Int) (v_subst_1 Int)) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid| v_subst_1 1))) (and (= (select .cse0 ULTIMATE.start_ULTIMATE.dealloc_~addr.base) 0) (= |c_#valid| (store (store (store .cse0 ULTIMATE.start_ULTIMATE.dealloc_~addr.base 1) v_subst_1 0) ULTIMATE.start_ULTIMATE.dealloc_~addr.base 0)) (= (select |c_ULTIMATE.start_main_old_#valid| v_subst_1) 0)))) is different from true [2018-10-10 14:42:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:42:08,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:42:08,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-10 14:42:08,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-10 14:42:08,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-10 14:42:08,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=135, Unknown=4, NotChecked=100, Total=272 [2018-10-10 14:42:08,630 INFO L87 Difference]: Start difference. First operand 191 states and 200 transitions. Second operand 17 states. [2018-10-10 14:42:09,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:09,394 INFO L93 Difference]: Finished difference Result 190 states and 199 transitions. [2018-10-10 14:42:09,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-10 14:42:09,395 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 84 [2018-10-10 14:42:09,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:09,396 INFO L225 Difference]: With dead ends: 190 [2018-10-10 14:42:09,397 INFO L226 Difference]: Without dead ends: 174 [2018-10-10 14:42:09,398 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=498, Unknown=9, NotChecked=196, Total=812 [2018-10-10 14:42:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-10-10 14:42:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-10-10 14:42:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-10-10 14:42:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 180 transitions. [2018-10-10 14:42:09,402 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 180 transitions. Word has length 84 [2018-10-10 14:42:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:09,402 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 180 transitions. [2018-10-10 14:42:09,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-10 14:42:09,403 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 180 transitions. [2018-10-10 14:42:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-10 14:42:09,403 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:09,404 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:09,404 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:42:09,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:09,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1632083117, now seen corresponding path program 2 times [2018-10-10 14:42:09,405 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:09,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:09,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:09,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:42:09,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:09,412 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:42:09,412 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:42:09,412 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:42:09,421 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:42:09,441 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-10 14:42:09,441 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:42:09,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:09,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:09,466 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:09,473 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:09,474 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-10-10 14:42:09,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:09,498 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:09,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:09,508 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-10-10 14:42:09,632 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:42:09,633 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 14:42:09,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-10-10 14:42:09,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:09,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:09,643 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:18 [2018-10-10 14:42:09,669 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 14 treesize of output 17 [2018-10-10 14:42:09,669 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:09,678 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:09,679 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-10-10 14:42:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-10-10 14:42:09,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:42:09,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 14:42:09,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:42:09,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:42:09,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:42:09,854 INFO L87 Difference]: Start difference. First operand 174 states and 180 transitions. Second operand 14 states. [2018-10-10 14:42:10,314 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-10-10 14:42:10,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:10,774 INFO L93 Difference]: Finished difference Result 173 states and 178 transitions. [2018-10-10 14:42:10,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:42:10,774 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2018-10-10 14:42:10,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:10,776 INFO L225 Difference]: With dead ends: 173 [2018-10-10 14:42:10,776 INFO L226 Difference]: Without dead ends: 173 [2018-10-10 14:42:10,777 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2018-10-10 14:42:10,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-10-10 14:42:10,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 112. [2018-10-10 14:42:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-10 14:42:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 115 transitions. [2018-10-10 14:42:10,782 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 115 transitions. Word has length 89 [2018-10-10 14:42:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:10,782 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 115 transitions. [2018-10-10 14:42:10,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:42:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 115 transitions. [2018-10-10 14:42:10,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-10 14:42:10,784 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:42:10,784 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:42:10,784 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:42:10,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:42:10,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1877454028, now seen corresponding path program 1 times [2018-10-10 14:42:10,785 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:42:10,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:42:10,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:10,786 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-10 14:42:10,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:42:10,792 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-10 14:42:10,792 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-10 14:42:10,792 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-10 14:42:10,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-10 14:42:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:42:10,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:42:10,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 14:42:10,873 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 14:42:10,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 14:42:10,885 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:13 [2018-10-10 14:42:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 14:42:11,197 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 14:42:11,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-10 14:42:11,216 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/mult_array-alloca_true-valid-memsafety_true-termination.i_12.bpl [2018-10-10 14:42:11,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 14:42:11,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 14:42:11,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:42:11,218 INFO L87 Difference]: Start difference. First operand 112 states and 115 transitions. Second operand 13 states. [2018-10-10 14:42:12,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:42:12,208 INFO L93 Difference]: Finished difference Result 135 states and 138 transitions. [2018-10-10 14:42:12,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:42:12,209 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2018-10-10 14:42:12,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:42:12,209 INFO L225 Difference]: With dead ends: 135 [2018-10-10 14:42:12,209 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 14:42:12,210 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=459, Unknown=0, NotChecked=0, Total=650 [2018-10-10 14:42:12,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 14:42:12,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 14:42:12,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 14:42:12,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 14:42:12,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2018-10-10 14:42:12,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:42:12,212 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 14:42:12,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 14:42:12,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 14:42:12,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 14:42:12,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:42:12 BoogieIcfgContainer [2018-10-10 14:42:12,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:42:12,218 INFO L168 Benchmark]: Toolchain (without parser) took 18383.31 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:42:12,219 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:42:12,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:42:12,220 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.97 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:42:12,220 INFO L168 Benchmark]: Boogie Preprocessor took 29.87 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:42:12,220 INFO L168 Benchmark]: RCFGBuilder took 964.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2018-10-10 14:42:12,221 INFO L168 Benchmark]: TraceAbstraction took 16875.14 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 248.5 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -229.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:42:12,225 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 450.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.97 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 29.87 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 964.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16875.14 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 248.5 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -229.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 135 locations, 7 error locations. SAFE Result, 16.8s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 10.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1241 SDtfs, 4269 SDslu, 4669 SDs, 0 SdLazy, 2874 SolverSat, 62 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 981 GetRequests, 764 SyntacticMatches, 2 SemanticMatches, 215 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 340 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 883 NumberOfCodeBlocks, 849 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 871 ConstructedInterpolants, 107 QuantifiedInterpolants, 610836 SizeOfPredicates, 128 NumberOfNonLiveVariables, 1491 ConjunctsInSsa, 217 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 31/58 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...