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/list-ext-properties/test-0019_1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:52:21,997 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:52:21,999 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:52:22,016 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:52:22,016 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:52:22,017 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:52:22,019 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:52:22,020 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:52:22,022 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:52:22,023 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:52:22,024 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:52:22,024 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:52:22,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:52:22,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:52:22,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:52:22,028 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:52:22,029 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:52:22,030 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:52:22,032 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:52:22,034 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:52:22,035 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:52:22,036 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:52:22,039 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:52:22,039 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:52:22,039 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:52:22,040 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:52:22,041 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:52:22,042 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:52:22,043 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:52:22,044 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:52:22,044 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:52:22,045 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:52:22,045 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:52:22,045 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:52:22,046 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:52:22,047 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:52:22,047 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 14:52:22,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:52:22,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:52:22,069 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:52:22,069 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:52:22,069 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:52:22,069 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:52:22,070 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:52:22,070 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:52:22,070 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:52:22,070 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:52:22,070 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:52:22,071 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:52:22,071 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:52:22,071 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:52:22,071 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:52:22,071 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:52:22,072 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:52:22,072 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:52:22,072 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:52:22,072 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:52:22,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:52:22,073 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:52:22,073 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:52:22,073 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:52:22,073 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:52:22,073 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 14:52:22,119 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:52:22,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:52:22,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:52:22,143 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:52:22,144 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:52:22,145 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0019_1_true-valid-memsafety_true-termination.i [2018-10-10 14:52:22,464 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5cea31b6/c583e75502bc49d2921be2d78f3a5a8d/FLAG78e80219b [2018-10-10 14:52:22,695 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:52:22,696 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/test-0019_1_true-valid-memsafety_true-termination.i [2018-10-10 14:52:22,713 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5cea31b6/c583e75502bc49d2921be2d78f3a5a8d/FLAG78e80219b [2018-10-10 14:52:22,731 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5cea31b6/c583e75502bc49d2921be2d78f3a5a8d [2018-10-10 14:52:22,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:52:22,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:52:22,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:52:22,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:52:22,749 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:52:22,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:52:22" (1/1) ... [2018-10-10 14:52:22,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376b48b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:22, skipping insertion in model container [2018-10-10 14:52:22,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:52:22" (1/1) ... [2018-10-10 14:52:22,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:52:22,829 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:52:23,137 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:52:23,148 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:52:23,212 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:52:23,275 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:52:23,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23 WrapperNode [2018-10-10 14:52:23,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:52:23,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:52:23,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:52:23,277 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:52:23,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:52:23,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:52:23,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:52:23,370 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:52:23,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (1/1) ... [2018-10-10 14:52:23,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:52:23,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:52:23,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:52:23,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:52:23,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (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 14:52:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:52:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:52:24,828 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:52:24,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:52:24 BoogieIcfgContainer [2018-10-10 14:52:24,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:52:24,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:52:24,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:52:24,834 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:52:24,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:52:22" (1/3) ... [2018-10-10 14:52:24,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e26a9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:52:24, skipping insertion in model container [2018-10-10 14:52:24,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:23" (2/3) ... [2018-10-10 14:52:24,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e26a9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:52:24, skipping insertion in model container [2018-10-10 14:52:24,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:52:24" (3/3) ... [2018-10-10 14:52:24,838 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_1_true-valid-memsafety_true-termination.i [2018-10-10 14:52:24,847 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:52:24,856 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2018-10-10 14:52:24,873 INFO L257 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2018-10-10 14:52:24,900 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:52:24,901 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:52:24,901 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:52:24,901 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:52:24,902 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:52:24,902 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:52:24,902 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:52:24,902 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:52:24,903 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:52:24,926 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2018-10-10 14:52:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-10 14:52:24,936 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:24,937 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:52:24,944 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:24,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:24,952 INFO L82 PathProgramCache]: Analyzing trace with hash -151080746, now seen corresponding path program 1 times [2018-10-10 14:52:24,953 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:24,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:25,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:25,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:25,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:25,517 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 14:52:25,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:25,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:52:25,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:52:25,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:52:25,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:52:25,547 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 9 states. [2018-10-10 14:52:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:27,151 INFO L93 Difference]: Finished difference Result 293 states and 293 transitions. [2018-10-10 14:52:27,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-10 14:52:27,152 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2018-10-10 14:52:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:27,167 INFO L225 Difference]: With dead ends: 293 [2018-10-10 14:52:27,167 INFO L226 Difference]: Without dead ends: 288 [2018-10-10 14:52:27,169 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2018-10-10 14:52:27,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-10-10 14:52:27,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2018-10-10 14:52:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2018-10-10 14:52:27,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 288 transitions. [2018-10-10 14:52:27,234 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 288 transitions. Word has length 40 [2018-10-10 14:52:27,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:27,235 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 288 transitions. [2018-10-10 14:52:27,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:52:27,235 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 288 transitions. [2018-10-10 14:52:27,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-10 14:52:27,237 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:27,237 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:52:27,238 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:27,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:27,238 INFO L82 PathProgramCache]: Analyzing trace with hash -388535757, now seen corresponding path program 1 times [2018-10-10 14:52:27,239 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:27,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:27,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:27,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:27,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:27,679 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 14:52:27,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:27,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 14:52:27,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 14:52:27,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 14:52:27,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:52:27,683 INFO L87 Difference]: Start difference. First operand 288 states and 288 transitions. Second operand 13 states. [2018-10-10 14:52:29,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:29,814 INFO L93 Difference]: Finished difference Result 287 states and 287 transitions. [2018-10-10 14:52:29,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-10 14:52:29,815 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-10-10 14:52:29,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:29,819 INFO L225 Difference]: With dead ends: 287 [2018-10-10 14:52:29,819 INFO L226 Difference]: Without dead ends: 287 [2018-10-10 14:52:29,820 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2018-10-10 14:52:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-10-10 14:52:29,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2018-10-10 14:52:29,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2018-10-10 14:52:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 287 transitions. [2018-10-10 14:52:29,840 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 287 transitions. Word has length 41 [2018-10-10 14:52:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:29,841 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 287 transitions. [2018-10-10 14:52:29,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 14:52:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 287 transitions. [2018-10-10 14:52:29,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-10 14:52:29,843 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:29,844 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, 1, 1] [2018-10-10 14:52:29,845 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:29,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:29,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1485732897, now seen corresponding path program 1 times [2018-10-10 14:52:29,845 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:29,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:29,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:29,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:29,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:30,315 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 14:52:30,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:30,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-10-10 14:52:30,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 14:52:30,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 14:52:30,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2018-10-10 14:52:30,317 INFO L87 Difference]: Start difference. First operand 287 states and 287 transitions. Second operand 15 states. [2018-10-10 14:52:32,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:32,105 INFO L93 Difference]: Finished difference Result 286 states and 286 transitions. [2018-10-10 14:52:32,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-10-10 14:52:32,106 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2018-10-10 14:52:32,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:32,109 INFO L225 Difference]: With dead ends: 286 [2018-10-10 14:52:32,109 INFO L226 Difference]: Without dead ends: 286 [2018-10-10 14:52:32,112 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=258, Invalid=1074, Unknown=0, NotChecked=0, Total=1332 [2018-10-10 14:52:32,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-10-10 14:52:32,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2018-10-10 14:52:32,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2018-10-10 14:52:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2018-10-10 14:52:32,135 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 63 [2018-10-10 14:52:32,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:32,136 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2018-10-10 14:52:32,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 14:52:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2018-10-10 14:52:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-10 14:52:32,139 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:32,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:52:32,143 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:32,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:32,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1132782108, now seen corresponding path program 1 times [2018-10-10 14:52:32,144 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:32,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:32,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:32,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:32,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:32,286 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 14:52:32,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:32,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:52:32,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:52:32,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:52:32,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:52:32,288 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand 6 states. [2018-10-10 14:52:32,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:32,630 INFO L93 Difference]: Finished difference Result 284 states and 284 transitions. [2018-10-10 14:52:32,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:52:32,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2018-10-10 14:52:32,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:32,634 INFO L225 Difference]: With dead ends: 284 [2018-10-10 14:52:32,634 INFO L226 Difference]: Without dead ends: 284 [2018-10-10 14:52:32,634 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:32,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-10-10 14:52:32,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2018-10-10 14:52:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2018-10-10 14:52:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 284 transitions. [2018-10-10 14:52:32,644 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 284 transitions. Word has length 71 [2018-10-10 14:52:32,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:32,645 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 284 transitions. [2018-10-10 14:52:32,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:52:32,645 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 284 transitions. [2018-10-10 14:52:32,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-10 14:52:32,647 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:32,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:52:32,648 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:32,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:32,649 INFO L82 PathProgramCache]: Analyzing trace with hash -756506872, now seen corresponding path program 1 times [2018-10-10 14:52:32,649 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:32,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:32,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:32,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:32,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:32,893 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 14:52:32,894 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:32,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:52:32,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:52:32,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:52:32,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:52:32,895 INFO L87 Difference]: Start difference. First operand 284 states and 284 transitions. Second operand 10 states. [2018-10-10 14:52:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:33,520 INFO L93 Difference]: Finished difference Result 283 states and 283 transitions. [2018-10-10 14:52:33,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-10 14:52:33,520 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2018-10-10 14:52:33,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:33,522 INFO L225 Difference]: With dead ends: 283 [2018-10-10 14:52:33,523 INFO L226 Difference]: Without dead ends: 283 [2018-10-10 14:52:33,523 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-10-10 14:52:33,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-10-10 14:52:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2018-10-10 14:52:33,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2018-10-10 14:52:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 283 transitions. [2018-10-10 14:52:33,530 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 283 transitions. Word has length 72 [2018-10-10 14:52:33,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:33,531 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 283 transitions. [2018-10-10 14:52:33,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:52:33,531 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 283 transitions. [2018-10-10 14:52:33,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-10 14:52:33,532 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:33,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:52:33,533 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:33,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:33,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1301491410, now seen corresponding path program 1 times [2018-10-10 14:52:33,534 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:33,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:33,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:33,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:33,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:34,460 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 14:52:34,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:34,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-10-10 14:52:34,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-10 14:52:34,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-10 14:52:34,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2018-10-10 14:52:34,461 INFO L87 Difference]: Start difference. First operand 283 states and 283 transitions. Second operand 19 states. [2018-10-10 14:52:36,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:36,948 INFO L93 Difference]: Finished difference Result 282 states and 282 transitions. [2018-10-10 14:52:36,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-10 14:52:36,949 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 82 [2018-10-10 14:52:36,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:36,952 INFO L225 Difference]: With dead ends: 282 [2018-10-10 14:52:36,952 INFO L226 Difference]: Without dead ends: 282 [2018-10-10 14:52:36,954 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=551, Invalid=1705, Unknown=0, NotChecked=0, Total=2256 [2018-10-10 14:52:36,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2018-10-10 14:52:36,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2018-10-10 14:52:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-10-10 14:52:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 282 transitions. [2018-10-10 14:52:36,960 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 282 transitions. Word has length 82 [2018-10-10 14:52:36,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:36,961 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 282 transitions. [2018-10-10 14:52:36,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-10 14:52:36,961 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 282 transitions. [2018-10-10 14:52:36,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-10 14:52:36,962 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:36,963 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, 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 14:52:36,963 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:36,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:36,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1691527925, now seen corresponding path program 1 times [2018-10-10 14:52:36,964 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:36,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:36,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:36,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:36,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:37,639 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 14:52:37,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:37,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-10-10 14:52:37,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-10 14:52:37,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-10 14:52:37,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2018-10-10 14:52:37,640 INFO L87 Difference]: Start difference. First operand 282 states and 282 transitions. Second operand 23 states. [2018-10-10 14:52:38,291 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-10-10 14:52:38,462 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-10 14:52:39,177 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2018-10-10 14:52:39,861 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2018-10-10 14:52:40,024 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2018-10-10 14:52:40,199 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2018-10-10 14:52:41,103 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2018-10-10 14:52:42,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:42,048 INFO L93 Difference]: Finished difference Result 281 states and 281 transitions. [2018-10-10 14:52:42,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-10 14:52:42,052 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 83 [2018-10-10 14:52:42,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:42,054 INFO L225 Difference]: With dead ends: 281 [2018-10-10 14:52:42,054 INFO L226 Difference]: Without dead ends: 281 [2018-10-10 14:52:42,055 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=670, Invalid=2192, Unknown=0, NotChecked=0, Total=2862 [2018-10-10 14:52:42,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2018-10-10 14:52:42,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2018-10-10 14:52:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-10-10 14:52:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 281 transitions. [2018-10-10 14:52:42,061 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 281 transitions. Word has length 83 [2018-10-10 14:52:42,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:42,062 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 281 transitions. [2018-10-10 14:52:42,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-10-10 14:52:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 281 transitions. [2018-10-10 14:52:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-10 14:52:42,063 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:42,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:42,065 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:42,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:42,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1203050417, now seen corresponding path program 1 times [2018-10-10 14:52:42,065 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:42,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:42,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:42,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:42,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:42,489 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 14:52:42,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:42,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-10 14:52:42,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 14:52:42,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 14:52:42,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:52:42,494 INFO L87 Difference]: Start difference. First operand 281 states and 281 transitions. Second operand 11 states. [2018-10-10 14:52:43,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:43,162 INFO L93 Difference]: Finished difference Result 280 states and 280 transitions. [2018-10-10 14:52:43,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 14:52:43,163 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2018-10-10 14:52:43,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:43,165 INFO L225 Difference]: With dead ends: 280 [2018-10-10 14:52:43,165 INFO L226 Difference]: Without dead ends: 280 [2018-10-10 14:52:43,165 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2018-10-10 14:52:43,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2018-10-10 14:52:43,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2018-10-10 14:52:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2018-10-10 14:52:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 280 transitions. [2018-10-10 14:52:43,170 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 280 transitions. Word has length 93 [2018-10-10 14:52:43,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:43,171 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 280 transitions. [2018-10-10 14:52:43,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 14:52:43,171 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 280 transitions. [2018-10-10 14:52:43,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-10-10 14:52:43,173 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:43,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:43,174 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:43,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:43,174 INFO L82 PathProgramCache]: Analyzing trace with hash -395933129, now seen corresponding path program 1 times [2018-10-10 14:52:43,174 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:43,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:43,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:43,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:43,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:43,869 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 14:52:43,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:43,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-10-10 14:52:43,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 14:52:43,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 14:52:43,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-10-10 14:52:43,871 INFO L87 Difference]: Start difference. First operand 280 states and 280 transitions. Second operand 15 states. [2018-10-10 14:52:44,993 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-10-10 14:52:45,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:45,414 INFO L93 Difference]: Finished difference Result 279 states and 279 transitions. [2018-10-10 14:52:45,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-10 14:52:45,415 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2018-10-10 14:52:45,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:45,417 INFO L225 Difference]: With dead ends: 279 [2018-10-10 14:52:45,417 INFO L226 Difference]: Without dead ends: 279 [2018-10-10 14:52:45,418 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=381, Invalid=879, Unknown=0, NotChecked=0, Total=1260 [2018-10-10 14:52:45,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-10-10 14:52:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2018-10-10 14:52:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2018-10-10 14:52:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 279 transitions. [2018-10-10 14:52:45,422 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 279 transitions. Word has length 103 [2018-10-10 14:52:45,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:45,423 INFO L481 AbstractCegarLoop]: Abstraction has 279 states and 279 transitions. [2018-10-10 14:52:45,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 14:52:45,423 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 279 transitions. [2018-10-10 14:52:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-10 14:52:45,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:45,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:45,425 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:45,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:45,425 INFO L82 PathProgramCache]: Analyzing trace with hash 610975035, now seen corresponding path program 1 times [2018-10-10 14:52:45,426 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:45,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:45,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:45,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:45,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:46,039 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 14:52:46,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:46,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-10 14:52:46,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-10 14:52:46,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-10 14:52:46,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2018-10-10 14:52:46,041 INFO L87 Difference]: Start difference. First operand 279 states and 279 transitions. Second operand 17 states. [2018-10-10 14:52:47,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:47,538 INFO L93 Difference]: Finished difference Result 278 states and 278 transitions. [2018-10-10 14:52:47,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-10 14:52:47,538 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2018-10-10 14:52:47,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:47,540 INFO L225 Difference]: With dead ends: 278 [2018-10-10 14:52:47,540 INFO L226 Difference]: Without dead ends: 278 [2018-10-10 14:52:47,541 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=464, Invalid=1018, Unknown=0, NotChecked=0, Total=1482 [2018-10-10 14:52:47,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-10-10 14:52:47,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-10-10 14:52:47,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-10-10 14:52:47,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 278 transitions. [2018-10-10 14:52:47,546 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 278 transitions. Word has length 104 [2018-10-10 14:52:47,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:47,547 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 278 transitions. [2018-10-10 14:52:47,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-10 14:52:47,547 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 278 transitions. [2018-10-10 14:52:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-10 14:52:47,548 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:47,548 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:47,549 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:47,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:47,550 INFO L82 PathProgramCache]: Analyzing trace with hash -845431903, now seen corresponding path program 1 times [2018-10-10 14:52:47,550 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:47,550 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:47,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:47,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:47,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:47,684 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 14:52:47,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:47,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:52:47,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:52:47,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:52:47,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:52:47,685 INFO L87 Difference]: Start difference. First operand 278 states and 278 transitions. Second operand 8 states. [2018-10-10 14:52:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:48,003 INFO L93 Difference]: Finished difference Result 276 states and 276 transitions. [2018-10-10 14:52:48,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:52:48,004 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 114 [2018-10-10 14:52:48,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:48,005 INFO L225 Difference]: With dead ends: 276 [2018-10-10 14:52:48,006 INFO L226 Difference]: Without dead ends: 276 [2018-10-10 14:52:48,006 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:52:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2018-10-10 14:52:48,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2018-10-10 14:52:48,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2018-10-10 14:52:48,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 276 transitions. [2018-10-10 14:52:48,012 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 276 transitions. Word has length 114 [2018-10-10 14:52:48,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:48,012 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 276 transitions. [2018-10-10 14:52:48,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:52:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 276 transitions. [2018-10-10 14:52:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-10 14:52:48,013 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:48,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:48,015 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:48,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:48,015 INFO L82 PathProgramCache]: Analyzing trace with hash -438585057, now seen corresponding path program 1 times [2018-10-10 14:52:48,015 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:48,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:48,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:48,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:48,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:48,682 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 14:52:48,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:48,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:52:48,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 14:52:48,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 14:52:48,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:52:48,683 INFO L87 Difference]: Start difference. First operand 276 states and 276 transitions. Second operand 10 states. [2018-10-10 14:52:49,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:49,127 INFO L93 Difference]: Finished difference Result 275 states and 275 transitions. [2018-10-10 14:52:49,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 14:52:49,128 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 115 [2018-10-10 14:52:49,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:49,129 INFO L225 Difference]: With dead ends: 275 [2018-10-10 14:52:49,129 INFO L226 Difference]: Without dead ends: 275 [2018-10-10 14:52:49,130 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2018-10-10 14:52:49,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-10-10 14:52:49,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2018-10-10 14:52:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-10-10 14:52:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 275 transitions. [2018-10-10 14:52:49,135 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 275 transitions. Word has length 115 [2018-10-10 14:52:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:49,135 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 275 transitions. [2018-10-10 14:52:49,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 14:52:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 275 transitions. [2018-10-10 14:52:49,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-10 14:52:49,136 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:49,137 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:49,138 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:49,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:49,138 INFO L82 PathProgramCache]: Analyzing trace with hash 2102876965, now seen corresponding path program 1 times [2018-10-10 14:52:49,138 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:49,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:49,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:49,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:49,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:49,466 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 14:52:49,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:49,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 14:52:49,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 14:52:49,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 14:52:49,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:52:49,467 INFO L87 Difference]: Start difference. First operand 275 states and 275 transitions. Second operand 13 states. [2018-10-10 14:52:50,464 WARN L178 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2018-10-10 14:52:50,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:50,756 INFO L93 Difference]: Finished difference Result 274 states and 274 transitions. [2018-10-10 14:52:50,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-10 14:52:50,756 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2018-10-10 14:52:50,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:50,758 INFO L225 Difference]: With dead ends: 274 [2018-10-10 14:52:50,759 INFO L226 Difference]: Without dead ends: 274 [2018-10-10 14:52:50,759 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2018-10-10 14:52:50,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-10-10 14:52:50,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2018-10-10 14:52:50,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2018-10-10 14:52:50,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 274 transitions. [2018-10-10 14:52:50,764 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 274 transitions. Word has length 125 [2018-10-10 14:52:50,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:50,764 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 274 transitions. [2018-10-10 14:52:50,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 14:52:50,765 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 274 transitions. [2018-10-10 14:52:50,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-10 14:52:50,766 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:50,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:50,767 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:50,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:50,767 INFO L82 PathProgramCache]: Analyzing trace with hash -237027531, now seen corresponding path program 1 times [2018-10-10 14:52:50,767 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:50,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:50,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:50,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:50,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:50,868 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 14:52:50,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:50,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:52:50,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:52:50,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:52:50,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:52:50,870 INFO L87 Difference]: Start difference. First operand 274 states and 274 transitions. Second operand 5 states. [2018-10-10 14:52:51,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:51,100 INFO L93 Difference]: Finished difference Result 272 states and 272 transitions. [2018-10-10 14:52:51,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 14:52:51,101 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2018-10-10 14:52:51,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:51,102 INFO L225 Difference]: With dead ends: 272 [2018-10-10 14:52:51,103 INFO L226 Difference]: Without dead ends: 272 [2018-10-10 14:52:51,103 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:52:51,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-10-10 14:52:51,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2018-10-10 14:52:51,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2018-10-10 14:52:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 272 transitions. [2018-10-10 14:52:51,108 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 272 transitions. Word has length 150 [2018-10-10 14:52:51,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:51,109 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 272 transitions. [2018-10-10 14:52:51,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:52:51,109 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 272 transitions. [2018-10-10 14:52:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-10 14:52:51,110 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:51,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:51,111 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:51,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:51,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1242081331, now seen corresponding path program 1 times [2018-10-10 14:52:51,112 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:51,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:51,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:51,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:51,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:51,296 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 14:52:51,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:51,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:52:51,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:52:51,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:52:51,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:51,298 INFO L87 Difference]: Start difference. First operand 272 states and 272 transitions. Second operand 7 states. [2018-10-10 14:52:51,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:51,513 INFO L93 Difference]: Finished difference Result 271 states and 271 transitions. [2018-10-10 14:52:51,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:52:51,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2018-10-10 14:52:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:51,516 INFO L225 Difference]: With dead ends: 271 [2018-10-10 14:52:51,516 INFO L226 Difference]: Without dead ends: 271 [2018-10-10 14:52:51,516 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:52:51,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-10-10 14:52:51,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2018-10-10 14:52:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-10-10 14:52:51,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 271 transitions. [2018-10-10 14:52:51,521 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 271 transitions. Word has length 151 [2018-10-10 14:52:51,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:51,521 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 271 transitions. [2018-10-10 14:52:51,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:52:51,522 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 271 transitions. [2018-10-10 14:52:51,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-10-10 14:52:51,523 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:51,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:51,524 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:51,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:51,524 INFO L82 PathProgramCache]: Analyzing trace with hash -618718663, now seen corresponding path program 1 times [2018-10-10 14:52:51,524 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:51,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:51,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:51,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:51,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:51,661 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 14:52:51,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:51,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:52:51,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:52:51,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:52:51,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:51,663 INFO L87 Difference]: Start difference. First operand 271 states and 271 transitions. Second operand 7 states. [2018-10-10 14:52:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:51,893 INFO L93 Difference]: Finished difference Result 270 states and 270 transitions. [2018-10-10 14:52:51,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:52:51,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2018-10-10 14:52:51,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:51,895 INFO L225 Difference]: With dead ends: 270 [2018-10-10 14:52:51,896 INFO L226 Difference]: Without dead ends: 270 [2018-10-10 14:52:51,896 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:52:51,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2018-10-10 14:52:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2018-10-10 14:52:51,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-10-10 14:52:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 270 transitions. [2018-10-10 14:52:51,901 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 270 transitions. Word has length 161 [2018-10-10 14:52:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:51,901 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 270 transitions. [2018-10-10 14:52:51,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:52:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 270 transitions. [2018-10-10 14:52:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-10-10 14:52:51,902 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:51,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:51,903 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:51,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:51,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1688036286, now seen corresponding path program 1 times [2018-10-10 14:52:51,904 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:51,904 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:51,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:51,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:51,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:52,058 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 14:52:52,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:52,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:52:52,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:52:52,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:52:52,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:52:52,060 INFO L87 Difference]: Start difference. First operand 270 states and 270 transitions. Second operand 6 states. [2018-10-10 14:52:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:52,269 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2018-10-10 14:52:52,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:52:52,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-10-10 14:52:52,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:52,272 INFO L225 Difference]: With dead ends: 268 [2018-10-10 14:52:52,273 INFO L226 Difference]: Without dead ends: 268 [2018-10-10 14:52:52,273 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:52,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2018-10-10 14:52:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2018-10-10 14:52:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-10-10 14:52:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 268 transitions. [2018-10-10 14:52:52,277 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 268 transitions. Word has length 169 [2018-10-10 14:52:52,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:52,278 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 268 transitions. [2018-10-10 14:52:52,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:52:52,278 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 268 transitions. [2018-10-10 14:52:52,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-10 14:52:52,279 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:52,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:52,280 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:52,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:52,280 INFO L82 PathProgramCache]: Analyzing trace with hash 789517537, now seen corresponding path program 1 times [2018-10-10 14:52:52,280 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:52,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:52,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:52,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:52,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:52,742 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-10-10 14:52:52,977 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2018-10-10 14:52:53,014 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 14:52:53,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:53,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:52:53,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:52:53,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:52:53,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:52:53,015 INFO L87 Difference]: Start difference. First operand 268 states and 268 transitions. Second operand 8 states. [2018-10-10 14:52:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:53,267 INFO L93 Difference]: Finished difference Result 267 states and 267 transitions. [2018-10-10 14:52:53,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 14:52:53,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2018-10-10 14:52:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:53,269 INFO L225 Difference]: With dead ends: 267 [2018-10-10 14:52:53,269 INFO L226 Difference]: Without dead ends: 267 [2018-10-10 14:52:53,270 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:52:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-10-10 14:52:53,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2018-10-10 14:52:53,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2018-10-10 14:52:53,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 267 transitions. [2018-10-10 14:52:53,274 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 267 transitions. Word has length 170 [2018-10-10 14:52:53,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:53,274 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 267 transitions. [2018-10-10 14:52:53,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:52:53,275 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 267 transitions. [2018-10-10 14:52:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-10-10 14:52:53,275 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:53,276 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:53,276 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:53,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:53,277 INFO L82 PathProgramCache]: Analyzing trace with hash 340635528, now seen corresponding path program 1 times [2018-10-10 14:52:53,277 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:53,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:53,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:53,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:53,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:53,496 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 14:52:53,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:53,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:52:53,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:52:53,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:52:53,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:52:53,498 INFO L87 Difference]: Start difference. First operand 267 states and 267 transitions. Second operand 8 states. [2018-10-10 14:52:53,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:53,694 INFO L93 Difference]: Finished difference Result 266 states and 266 transitions. [2018-10-10 14:52:53,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:52:53,694 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2018-10-10 14:52:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:53,697 INFO L225 Difference]: With dead ends: 266 [2018-10-10 14:52:53,697 INFO L226 Difference]: Without dead ends: 266 [2018-10-10 14:52:53,697 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:52:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-10-10 14:52:53,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2018-10-10 14:52:53,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-10-10 14:52:53,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 266 transitions. [2018-10-10 14:52:53,701 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 266 transitions. Word has length 182 [2018-10-10 14:52:53,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:53,702 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 266 transitions. [2018-10-10 14:52:53,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:52:53,702 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 266 transitions. [2018-10-10 14:52:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-10 14:52:53,703 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:53,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:53,704 INFO L424 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:53,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:53,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1501558708, now seen corresponding path program 1 times [2018-10-10 14:52:53,705 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:53,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:53,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:53,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:53,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:54,662 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 14:52:54,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:54,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-10-10 14:52:54,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-10 14:52:54,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-10 14:52:54,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2018-10-10 14:52:54,664 INFO L87 Difference]: Start difference. First operand 266 states and 266 transitions. Second operand 26 states. [2018-10-10 14:52:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:57,851 INFO L93 Difference]: Finished difference Result 264 states and 264 transitions. [2018-10-10 14:52:57,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-10 14:52:57,852 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 193 [2018-10-10 14:52:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:57,854 INFO L225 Difference]: With dead ends: 264 [2018-10-10 14:52:57,854 INFO L226 Difference]: Without dead ends: 264 [2018-10-10 14:52:57,856 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2018-10-10 14:52:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-10-10 14:52:57,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2018-10-10 14:52:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-10-10 14:52:57,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 264 transitions. [2018-10-10 14:52:57,859 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 264 transitions. Word has length 193 [2018-10-10 14:52:57,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:57,859 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 264 transitions. [2018-10-10 14:52:57,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-10 14:52:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 264 transitions. [2018-10-10 14:52:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-10 14:52:57,860 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:57,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:57,860 INFO L424 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:57,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:57,861 INFO L82 PathProgramCache]: Analyzing trace with hash 696320559, now seen corresponding path program 1 times [2018-10-10 14:52:57,861 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:57,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:57,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:57,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:57,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:59,142 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 14:52:59,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:59,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2018-10-10 14:52:59,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-10-10 14:52:59,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-10-10 14:52:59,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=807, Unknown=0, NotChecked=0, Total=870 [2018-10-10 14:52:59,144 INFO L87 Difference]: Start difference. First operand 264 states and 264 transitions. Second operand 30 states. [2018-10-10 14:53:00,977 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2018-10-10 14:53:02,866 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-10-10 14:53:03,384 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2018-10-10 14:53:03,630 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2018-10-10 14:53:03,833 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2018-10-10 14:53:04,058 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2018-10-10 14:53:04,247 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2018-10-10 14:53:04,430 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2018-10-10 14:53:04,668 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2018-10-10 14:53:04,889 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2018-10-10 14:53:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:05,429 INFO L93 Difference]: Finished difference Result 263 states and 263 transitions. [2018-10-10 14:53:05,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-10-10 14:53:05,430 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 194 [2018-10-10 14:53:05,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:05,432 INFO L225 Difference]: With dead ends: 263 [2018-10-10 14:53:05,432 INFO L226 Difference]: Without dead ends: 263 [2018-10-10 14:53:05,434 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=656, Invalid=3900, Unknown=0, NotChecked=0, Total=4556 [2018-10-10 14:53:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-10-10 14:53:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2018-10-10 14:53:05,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-10-10 14:53:05,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 263 transitions. [2018-10-10 14:53:05,438 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 263 transitions. Word has length 194 [2018-10-10 14:53:05,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:05,438 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 263 transitions. [2018-10-10 14:53:05,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-10-10 14:53:05,438 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 263 transitions. [2018-10-10 14:53:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-10 14:53:05,439 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:05,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:05,440 INFO L424 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:05,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:05,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1057386034, now seen corresponding path program 1 times [2018-10-10 14:53:05,440 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:05,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:05,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:05,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:05,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:06,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:06,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-10-10 14:53:06,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-10 14:53:06,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-10 14:53:06,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2018-10-10 14:53:06,488 INFO L87 Difference]: Start difference. First operand 263 states and 263 transitions. Second operand 26 states. [2018-10-10 14:53:09,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:09,332 INFO L93 Difference]: Finished difference Result 262 states and 262 transitions. [2018-10-10 14:53:09,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-10 14:53:09,335 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 203 [2018-10-10 14:53:09,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:09,337 INFO L225 Difference]: With dead ends: 262 [2018-10-10 14:53:09,337 INFO L226 Difference]: Without dead ends: 262 [2018-10-10 14:53:09,339 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=708, Invalid=2952, Unknown=0, NotChecked=0, Total=3660 [2018-10-10 14:53:09,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-10-10 14:53:09,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2018-10-10 14:53:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-10-10 14:53:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 262 transitions. [2018-10-10 14:53:09,342 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 262 transitions. Word has length 203 [2018-10-10 14:53:09,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:09,343 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 262 transitions. [2018-10-10 14:53:09,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-10 14:53:09,343 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 262 transitions. [2018-10-10 14:53:09,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-10-10 14:53:09,343 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:09,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:09,344 INFO L424 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:09,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:09,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1580771051, now seen corresponding path program 1 times [2018-10-10 14:53:09,344 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:09,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:09,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:09,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:09,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:10,600 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2018-10-10 14:53:10,816 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 25 [2018-10-10 14:53:12,388 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-10 14:53:13,611 WARN L178 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2018-10-10 14:53:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:14,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:14,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2018-10-10 14:53:14,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-10-10 14:53:14,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-10-10 14:53:14,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=3597, Unknown=0, NotChecked=0, Total=3782 [2018-10-10 14:53:14,499 INFO L87 Difference]: Start difference. First operand 262 states and 262 transitions. Second operand 62 states. [2018-10-10 14:53:16,097 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2018-10-10 14:53:16,349 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2018-10-10 14:53:17,333 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-10 14:53:17,592 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2018-10-10 14:53:17,898 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2018-10-10 14:53:18,266 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-10 14:53:18,587 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2018-10-10 14:53:18,920 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2018-10-10 14:53:19,433 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2018-10-10 14:53:19,776 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2018-10-10 14:53:20,285 WARN L178 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2018-10-10 14:53:20,728 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2018-10-10 14:53:21,104 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 86 [2018-10-10 14:53:21,569 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2018-10-10 14:53:21,935 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 85 [2018-10-10 14:53:22,417 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2018-10-10 14:53:22,780 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 85 [2018-10-10 14:53:23,155 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 87 [2018-10-10 14:53:23,554 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 84 [2018-10-10 14:53:23,920 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 86 [2018-10-10 14:53:24,399 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 84 [2018-10-10 14:53:24,774 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 86 [2018-10-10 14:53:25,287 WARN L178 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 84 [2018-10-10 14:53:25,664 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 86 [2018-10-10 14:53:26,054 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 91 [2018-10-10 14:53:26,480 WARN L178 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 93 [2018-10-10 14:53:26,979 WARN L178 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 90 [2018-10-10 14:53:27,376 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 96 [2018-10-10 14:53:27,872 WARN L178 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2018-10-10 14:53:28,392 WARN L178 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 115 [2018-10-10 14:53:28,968 WARN L178 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2018-10-10 14:53:29,450 WARN L178 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 127 [2018-10-10 14:53:29,897 WARN L178 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 119 [2018-10-10 14:53:31,005 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-10 14:53:31,554 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2018-10-10 14:53:31,772 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-10-10 14:53:32,001 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-10-10 14:53:32,341 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-10 14:53:32,592 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-10 14:53:32,881 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-10 14:53:33,332 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2018-10-10 14:53:33,615 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2018-10-10 14:53:33,917 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2018-10-10 14:53:34,160 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2018-10-10 14:53:34,468 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2018-10-10 14:53:34,872 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2018-10-10 14:53:35,197 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2018-10-10 14:53:35,694 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2018-10-10 14:53:36,046 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 100 [2018-10-10 14:53:36,357 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2018-10-10 14:53:36,708 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-10-10 14:53:37,261 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2018-10-10 14:53:37,881 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2018-10-10 14:53:38,386 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-10 14:53:38,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:38,485 INFO L93 Difference]: Finished difference Result 260 states and 260 transitions. [2018-10-10 14:53:38,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-10-10 14:53:38,485 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 204 [2018-10-10 14:53:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:38,487 INFO L225 Difference]: With dead ends: 260 [2018-10-10 14:53:38,487 INFO L226 Difference]: Without dead ends: 260 [2018-10-10 14:53:38,492 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3934 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=2080, Invalid=16826, Unknown=0, NotChecked=0, Total=18906 [2018-10-10 14:53:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-10-10 14:53:38,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2018-10-10 14:53:38,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2018-10-10 14:53:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 260 transitions. [2018-10-10 14:53:38,496 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 260 transitions. Word has length 204 [2018-10-10 14:53:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:38,496 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 260 transitions. [2018-10-10 14:53:38,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-10-10 14:53:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 260 transitions. [2018-10-10 14:53:38,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-10 14:53:38,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:38,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:38,498 INFO L424 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:38,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:38,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1765878555, now seen corresponding path program 1 times [2018-10-10 14:53:38,499 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:38,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:38,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:38,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:38,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:39,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:39,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-10-10 14:53:39,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-10 14:53:39,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-10 14:53:39,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2018-10-10 14:53:39,582 INFO L87 Difference]: Start difference. First operand 260 states and 260 transitions. Second operand 26 states. [2018-10-10 14:53:42,468 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-10-10 14:53:43,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:43,073 INFO L93 Difference]: Finished difference Result 259 states and 259 transitions. [2018-10-10 14:53:43,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-10 14:53:43,073 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 214 [2018-10-10 14:53:43,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:43,075 INFO L225 Difference]: With dead ends: 259 [2018-10-10 14:53:43,075 INFO L226 Difference]: Without dead ends: 259 [2018-10-10 14:53:43,077 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=802, Invalid=2980, Unknown=0, NotChecked=0, Total=3782 [2018-10-10 14:53:43,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-10-10 14:53:43,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2018-10-10 14:53:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2018-10-10 14:53:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 259 transitions. [2018-10-10 14:53:43,080 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 259 transitions. Word has length 214 [2018-10-10 14:53:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:43,081 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 259 transitions. [2018-10-10 14:53:43,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-10 14:53:43,081 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 259 transitions. [2018-10-10 14:53:43,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-10-10 14:53:43,082 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:43,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:43,082 INFO L424 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:43,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:43,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1130644341, now seen corresponding path program 1 times [2018-10-10 14:53:43,082 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:43,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:43,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:43,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:43,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:43,777 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-10-10 14:53:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:46,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:46,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2018-10-10 14:53:46,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-10-10 14:53:46,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-10-10 14:53:46,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=3139, Unknown=0, NotChecked=0, Total=3306 [2018-10-10 14:53:46,680 INFO L87 Difference]: Start difference. First operand 259 states and 259 transitions. Second operand 58 states. [2018-10-10 14:53:48,950 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-10-10 14:53:49,173 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2018-10-10 14:53:49,440 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2018-10-10 14:53:49,950 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2018-10-10 14:53:50,189 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2018-10-10 14:53:50,685 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2018-10-10 14:53:51,050 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2018-10-10 14:53:51,406 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2018-10-10 14:53:51,854 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2018-10-10 14:53:52,169 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2018-10-10 14:53:52,563 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2018-10-10 14:53:52,869 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2018-10-10 14:53:53,224 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2018-10-10 14:53:53,661 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 102 [2018-10-10 14:53:54,083 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 95 [2018-10-10 14:53:54,513 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2018-10-10 14:53:54,856 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2018-10-10 14:53:55,245 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2018-10-10 14:53:55,590 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2018-10-10 14:53:56,022 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2018-10-10 14:53:56,382 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2018-10-10 14:53:56,819 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2018-10-10 14:53:57,190 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2018-10-10 14:53:57,575 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2018-10-10 14:53:57,976 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 103 [2018-10-10 14:53:58,353 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 100 [2018-10-10 14:53:58,689 WARN L178 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2018-10-10 14:54:01,007 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-10 14:54:01,250 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-10-10 14:54:01,427 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-10-10 14:54:02,328 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-10-10 14:54:02,521 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-10-10 14:54:02,963 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-10-10 14:54:03,154 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2018-10-10 14:54:03,468 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2018-10-10 14:54:03,713 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-10 14:54:03,958 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2018-10-10 14:54:04,126 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-10 14:54:04,434 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2018-10-10 14:54:04,885 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-10 14:54:05,132 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-10-10 14:54:05,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:54:05,317 INFO L93 Difference]: Finished difference Result 263 states and 263 transitions. [2018-10-10 14:54:05,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-10-10 14:54:05,317 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 223 [2018-10-10 14:54:05,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:54:05,319 INFO L225 Difference]: With dead ends: 263 [2018-10-10 14:54:05,319 INFO L226 Difference]: Without dead ends: 263 [2018-10-10 14:54:05,323 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4591 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=2050, Invalid=17410, Unknown=0, NotChecked=0, Total=19460 [2018-10-10 14:54:05,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-10-10 14:54:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 258. [2018-10-10 14:54:05,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-10-10 14:54:05,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 258 transitions. [2018-10-10 14:54:05,327 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 258 transitions. Word has length 223 [2018-10-10 14:54:05,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:54:05,328 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 258 transitions. [2018-10-10 14:54:05,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-10-10 14:54:05,328 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 258 transitions. [2018-10-10 14:54:05,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-10-10 14:54:05,329 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:54:05,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:05,330 INFO L424 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:54:05,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:54:05,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1103281253, now seen corresponding path program 1 times [2018-10-10 14:54:05,331 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:54:05,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:54:05,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:54:05,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:54:05,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:54:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:54:09,406 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 14:54:09,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:54:09,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2018-10-10 14:54:09,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-10-10 14:54:09,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-10-10 14:54:09,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=3001, Unknown=0, NotChecked=0, Total=3192 [2018-10-10 14:54:09,408 INFO L87 Difference]: Start difference. First operand 258 states and 258 transitions. Second operand 57 states. [2018-10-10 14:54:12,490 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-10 14:54:12,681 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-10-10 14:54:12,934 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2018-10-10 14:54:13,165 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-10-10 14:54:13,565 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2018-10-10 14:54:13,766 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-10-10 14:54:13,999 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2018-10-10 14:54:14,318 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-10 14:54:14,548 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2018-10-10 14:54:14,802 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2018-10-10 14:54:15,077 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2018-10-10 14:54:15,360 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2018-10-10 14:54:15,726 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2018-10-10 14:54:15,994 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2018-10-10 14:54:16,211 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2018-10-10 14:54:16,526 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2018-10-10 14:54:16,926 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2018-10-10 14:54:17,204 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2018-10-10 14:54:17,512 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2018-10-10 14:54:17,883 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2018-10-10 14:54:18,171 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2018-10-10 14:54:18,469 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 92 [2018-10-10 14:54:18,802 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2018-10-10 14:54:19,184 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 105 [2018-10-10 14:54:19,444 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2018-10-10 14:54:19,701 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2018-10-10 14:54:19,945 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2018-10-10 14:54:20,223 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2018-10-10 14:54:20,524 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2018-10-10 14:54:20,823 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 104 [2018-10-10 14:54:21,216 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 106 [2018-10-10 14:54:21,584 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2018-10-10 14:54:21,925 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2018-10-10 14:54:23,378 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2018-10-10 14:54:23,618 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2018-10-10 14:54:23,963 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-10-10 14:54:24,195 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2018-10-10 14:54:24,435 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2018-10-10 14:54:24,696 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-10-10 14:54:24,905 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2018-10-10 14:54:25,150 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2018-10-10 14:54:25,526 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2018-10-10 14:54:25,768 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2018-10-10 14:54:26,020 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2018-10-10 14:54:26,294 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 116 [2018-10-10 14:54:26,545 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2018-10-10 14:54:26,824 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2018-10-10 14:54:27,267 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 120 [2018-10-10 14:54:27,567 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 123 [2018-10-10 14:54:27,861 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 122 [2018-10-10 14:54:28,271 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2018-10-10 14:54:28,562 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 121 [2018-10-10 14:54:28,849 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 123 [2018-10-10 14:54:29,256 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2018-10-10 14:54:29,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:54:29,688 INFO L93 Difference]: Finished difference Result 249 states and 248 transitions. [2018-10-10 14:54:29,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-10-10 14:54:29,688 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 232 [2018-10-10 14:54:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:54:29,691 INFO L225 Difference]: With dead ends: 249 [2018-10-10 14:54:29,691 INFO L226 Difference]: Without dead ends: 249 [2018-10-10 14:54:29,693 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4016 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=2237, Invalid=17223, Unknown=0, NotChecked=0, Total=19460 [2018-10-10 14:54:29,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-10-10 14:54:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2018-10-10 14:54:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-10-10 14:54:29,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 248 transitions. [2018-10-10 14:54:29,697 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 248 transitions. Word has length 232 [2018-10-10 14:54:29,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:54:29,697 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 248 transitions. [2018-10-10 14:54:29,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-10-10 14:54:29,697 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 248 transitions. [2018-10-10 14:54:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-10-10 14:54:29,698 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:54:29,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:29,699 INFO L424 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:54:29,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:54:29,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1274554191, now seen corresponding path program 1 times [2018-10-10 14:54:29,699 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:54:29,700 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:54:29,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:54:29,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:54:29,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:54:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:54:31,367 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-10-10 14:54:31,680 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 12 [2018-10-10 14:54:32,109 WARN L178 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 12 [2018-10-10 14:54:32,378 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 16 [2018-10-10 14:54:32,734 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 22 [2018-10-10 14:54:33,192 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 17 [2018-10-10 14:54:34,590 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 27 [2018-10-10 14:54:35,849 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 36 [2018-10-10 14:54:36,140 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 38 [2018-10-10 14:54:37,340 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 34 [2018-10-10 14:54:37,668 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2018-10-10 14:54:38,828 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2018-10-10 14:54:39,269 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2018-10-10 14:54:40,078 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2018-10-10 14:54:40,640 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2018-10-10 14:54:42,710 WARN L178 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2018-10-10 14:54:43,342 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2018-10-10 14:54:45,242 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 33 [2018-10-10 14:54:46,030 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 33 [2018-10-10 14:54:47,572 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 33 [2018-10-10 14:54:48,499 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 35 [2018-10-10 14:54:52,185 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 33 [2018-10-10 14:54:54,992 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 36 [2018-10-10 14:55:02,445 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 30 [2018-10-10 14:55:06,050 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2018-10-10 14:55:07,370 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 37 [2018-10-10 14:55:07,690 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 38 [2018-10-10 14:55:10,520 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 31 [2018-10-10 14:55:13,657 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 23 [2018-10-10 14:55:14,418 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 23 [2018-10-10 14:55:15,988 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 23 [2018-10-10 14:55:19,307 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 14:55:19,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:55:19,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2018-10-10 14:55:19,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-10-10 14:55:19,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-10-10 14:55:19,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=5835, Unknown=0, NotChecked=0, Total=6006 [2018-10-10 14:55:19,309 INFO L87 Difference]: Start difference. First operand 249 states and 248 transitions. Second operand 78 states. [2018-10-10 14:55:22,041 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-10-10 14:55:22,737 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-10-10 14:55:23,492 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2018-10-10 14:55:23,832 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-10-10 14:55:25,081 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-10-10 14:55:25,437 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-10-10 14:55:25,902 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2018-10-10 14:55:26,365 WARN L178 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2018-10-10 14:55:26,875 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-10 14:55:27,294 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-10 14:55:27,751 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-10-10 14:55:28,637 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2018-10-10 14:55:29,157 WARN L178 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2018-10-10 14:55:29,780 WARN L178 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2018-10-10 14:55:30,351 WARN L178 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 100 [2018-10-10 14:55:31,149 WARN L178 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2018-10-10 14:55:31,792 WARN L178 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2018-10-10 14:55:32,709 WARN L178 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2018-10-10 14:55:33,495 WARN L178 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 119 [2018-10-10 14:55:34,280 WARN L178 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 122 [2018-10-10 14:55:35,163 WARN L178 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 124 [2018-10-10 14:55:35,916 WARN L178 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2018-10-10 14:55:36,923 WARN L178 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 121 [2018-10-10 14:55:37,632 WARN L178 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 113 [2018-10-10 14:55:38,572 WARN L178 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 100 [2018-10-10 14:55:39,239 WARN L178 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 113 [2018-10-10 14:55:40,075 WARN L178 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 124 [2018-10-10 14:55:40,908 WARN L178 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 126 [2018-10-10 14:55:41,989 WARN L178 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 123 [2018-10-10 14:55:42,926 WARN L178 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 138 [2018-10-10 14:55:44,060 WARN L178 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 153 [2018-10-10 14:55:45,571 WARN L178 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2018-10-10 14:55:47,273 WARN L178 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 216 DAG size of output: 186 [2018-10-10 14:55:47,925 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-10-10 14:55:48,116 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2018-10-10 14:55:48,671 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-10-10 14:55:49,153 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2018-10-10 14:55:50,097 WARN L178 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2018-10-10 14:55:50,777 WARN L178 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2018-10-10 14:55:51,460 WARN L178 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 115 [2018-10-10 14:55:52,398 WARN L178 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2018-10-10 14:55:53,212 WARN L178 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2018-10-10 14:55:54,298 WARN L178 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 141 [2018-10-10 14:55:56,005 WARN L178 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 152 [2018-10-10 14:55:57,422 WARN L178 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 176 DAG size of output: 163 [2018-10-10 14:55:59,044 WARN L178 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 188 DAG size of output: 174 [2018-10-10 14:56:00,302 WARN L178 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 163 [2018-10-10 14:56:02,027 WARN L178 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 186 DAG size of output: 172 [2018-10-10 14:56:04,285 WARN L178 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 174 DAG size of output: 161 [2018-10-10 14:56:06,209 WARN L178 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 196 DAG size of output: 180 [2018-10-10 14:56:08,483 WARN L178 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 211 DAG size of output: 195 [2018-10-10 14:56:11,507 WARN L178 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 226 DAG size of output: 210 [2018-10-10 14:56:13,691 WARN L178 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 211 DAG size of output: 195 [2018-10-10 14:56:17,149 WARN L178 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 214 DAG size of output: 198 [2018-10-10 14:56:22,859 WARN L178 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 222 DAG size of output: 205 [2018-10-10 14:56:26,369 WARN L178 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 234 DAG size of output: 216 [2018-10-10 14:56:27,053 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2018-10-10 14:56:27,579 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2018-10-10 14:56:28,150 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2018-10-10 14:56:28,644 WARN L178 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 79 [2018-10-10 14:56:29,191 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 77 [2018-10-10 14:56:29,639 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2018-10-10 14:56:30,178 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2018-10-10 14:56:30,908 WARN L178 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 75 [2018-10-10 14:56:31,551 WARN L178 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2018-10-10 14:56:31,972 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2018-10-10 14:56:32,672 WARN L178 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2018-10-10 14:56:32,964 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-10 14:56:33,297 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-10-10 14:56:33,610 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2018-10-10 14:56:34,176 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2018-10-10 14:56:34,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:56:34,298 INFO L93 Difference]: Finished difference Result 248 states and 247 transitions. [2018-10-10 14:56:34,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-10-10 14:56:34,298 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 248 [2018-10-10 14:56:34,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:56:34,299 INFO L225 Difference]: With dead ends: 248 [2018-10-10 14:56:34,299 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 14:56:34,301 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 49 SyntacticMatches, 44 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5861 ImplicationChecksByTransitivity, 105.5s TimeCoverageRelationStatistics Valid=1557, Invalid=26499, Unknown=0, NotChecked=0, Total=28056 [2018-10-10 14:56:34,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 14:56:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 14:56:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 14:56:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 14:56:34,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2018-10-10 14:56:34,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:56:34,302 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 14:56:34,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-10-10 14:56:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 14:56:34,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 14:56:34,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:56:34 BoogieIcfgContainer [2018-10-10 14:56:34,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:56:34,309 INFO L168 Benchmark]: Toolchain (without parser) took 251566.26 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 943.7 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -600.0 MB). Peak memory consumption was 343.7 MB. Max. memory is 7.1 GB. [2018-10-10 14:56:34,310 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 14:56:34,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:56:34,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.52 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 14:56:34,311 INFO L168 Benchmark]: Boogie Preprocessor took 71.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:56:34,311 INFO L168 Benchmark]: RCFGBuilder took 1388.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -762.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2018-10-10 14:56:34,311 INFO L168 Benchmark]: TraceAbstraction took 249478.11 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 205.0 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 131.2 MB). Peak memory consumption was 336.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:56:34,313 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 531.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 92.52 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 71.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1388.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -762.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249478.11 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 205.0 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 131.2 MB). Peak memory consumption was 336.1 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: -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: 636]: free always succeeds For all program executions holds that free 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: 637]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 639]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: -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: 636]: free always succeeds For all program executions holds that free 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: 637]: free always succeeds For all program executions holds that free 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: -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 - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 295 locations, 33 error locations. SAFE Result, 249.4s OverallTime, 27 OverallIterations, 1 TraceHistogramMax, 174.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5335 SDtfs, 36546 SDslu, 40322 SDs, 0 SdLazy, 39892 SolverSat, 1107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1363 GetRequests, 101 SyntacticMatches, 59 SemanticMatches, 1203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22743 ImplicationChecksByTransitivity, 192.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 27 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 72.3s InterpolantComputationTime, 3800 NumberOfCodeBlocks, 3800 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3773 ConstructedInterpolants, 0 QuantifiedInterpolants, 9462843 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...