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-0217_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:52:39,328 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:52:39,331 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:52:39,348 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:52:39,348 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:52:39,349 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:52:39,351 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:52:39,354 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:52:39,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:52:39,357 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:52:39,364 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:52:39,364 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:52:39,367 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:52:39,368 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:52:39,372 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:52:39,373 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:52:39,374 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:52:39,376 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:52:39,382 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:52:39,384 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:52:39,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:52:39,388 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:52:39,391 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:52:39,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:52:39,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:52:39,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:52:39,394 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:52:39,395 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:52:39,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:52:39,399 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:52:39,399 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:52:39,400 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:52:39,400 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:52:39,400 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:52:39,402 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:52:39,403 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:52:39,403 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 14:52:39,418 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:52:39,418 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:52:39,419 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:52:39,420 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:52:39,420 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:52:39,420 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:52:39,420 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:52:39,420 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:52:39,421 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:52:39,421 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:52:39,421 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:52:39,421 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:52:39,421 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:52:39,421 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:52:39,422 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:52:39,422 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:52:39,422 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:52:39,422 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:52:39,422 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:52:39,423 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:52:39,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:52:39,423 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:52:39,423 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:52:39,423 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:52:39,424 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:52:39,424 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 14:52:39,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:52:39,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:52:39,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:52:39,506 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:52:39,506 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:52:39,507 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0217_1_true-valid-memsafety.i [2018-10-10 14:52:39,860 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0470ad57b/e081e8a15d8e4041a8b8ea72c332846f/FLAG1d3a752f2 [2018-10-10 14:52:40,145 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:52:40,145 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/test-0217_1_true-valid-memsafety.i [2018-10-10 14:52:40,168 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0470ad57b/e081e8a15d8e4041a8b8ea72c332846f/FLAG1d3a752f2 [2018-10-10 14:52:40,187 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0470ad57b/e081e8a15d8e4041a8b8ea72c332846f [2018-10-10 14:52:40,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:52:40,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:52:40,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:52:40,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:52:40,204 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:52:40,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ef79e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40, skipping insertion in model container [2018-10-10 14:52:40,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:52:40,285 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:52:40,576 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:52:40,591 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:52:40,683 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:52:40,768 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:52:40,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40 WrapperNode [2018-10-10 14:52:40,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:52:40,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:52:40,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:52:40,770 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:52:40,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:52:40,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:52:40,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:52:40,862 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:52:40,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:40,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:41,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (1/1) ... [2018-10-10 14:52:41,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:52:41,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:52:41,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:52:41,009 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:52:41,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (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 14:52:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:52:41,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:52:43,559 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:52:43,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:52:43 BoogieIcfgContainer [2018-10-10 14:52:43,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:52:43,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:52:43,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:52:43,565 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:52:43,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:52:40" (1/3) ... [2018-10-10 14:52:43,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1c6054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:52:43, skipping insertion in model container [2018-10-10 14:52:43,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:52:40" (2/3) ... [2018-10-10 14:52:43,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1c6054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:52:43, skipping insertion in model container [2018-10-10 14:52:43,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:52:43" (3/3) ... [2018-10-10 14:52:43,569 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0217_1_true-valid-memsafety.i [2018-10-10 14:52:43,579 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:52:43,588 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2018-10-10 14:52:43,606 INFO L257 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2018-10-10 14:52:43,633 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:52:43,634 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:52:43,634 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:52:43,634 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:52:43,634 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:52:43,635 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:52:43,635 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:52:43,635 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:52:43,635 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:52:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states. [2018-10-10 14:52:43,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-10 14:52:43,683 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:43,684 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:52:43,688 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:43,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:43,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1597552760, now seen corresponding path program 1 times [2018-10-10 14:52:43,697 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:43,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:43,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:43,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:43,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:43,996 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 14:52:43,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:43,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:52:44,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:52:44,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:52:44,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:52:44,024 INFO L87 Difference]: Start difference. First operand 637 states. Second operand 5 states. [2018-10-10 14:52:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:45,610 INFO L93 Difference]: Finished difference Result 1241 states and 1290 transitions. [2018-10-10 14:52:45,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:52:45,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-10-10 14:52:45,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:45,642 INFO L225 Difference]: With dead ends: 1241 [2018-10-10 14:52:45,642 INFO L226 Difference]: Without dead ends: 1225 [2018-10-10 14:52:45,644 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:52:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2018-10-10 14:52:45,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 627. [2018-10-10 14:52:45,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2018-10-10 14:52:45,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 650 transitions. [2018-10-10 14:52:45,754 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 650 transitions. Word has length 19 [2018-10-10 14:52:45,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:45,755 INFO L481 AbstractCegarLoop]: Abstraction has 627 states and 650 transitions. [2018-10-10 14:52:45,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:52:45,755 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 650 transitions. [2018-10-10 14:52:45,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-10 14:52:45,757 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:45,757 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] [2018-10-10 14:52:45,760 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:45,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:45,761 INFO L82 PathProgramCache]: Analyzing trace with hash 2015472043, now seen corresponding path program 1 times [2018-10-10 14:52:45,762 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:45,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:45,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:45,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:45,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:46,081 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 14:52:46,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:46,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:52:46,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:52:46,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:52:46,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:46,084 INFO L87 Difference]: Start difference. First operand 627 states and 650 transitions. Second operand 7 states. [2018-10-10 14:52:47,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:47,108 INFO L93 Difference]: Finished difference Result 957 states and 994 transitions. [2018-10-10 14:52:47,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:52:47,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-10 14:52:47,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:47,114 INFO L225 Difference]: With dead ends: 957 [2018-10-10 14:52:47,114 INFO L226 Difference]: Without dead ends: 957 [2018-10-10 14:52:47,115 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:52:47,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2018-10-10 14:52:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 626. [2018-10-10 14:52:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2018-10-10 14:52:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 649 transitions. [2018-10-10 14:52:47,143 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 649 transitions. Word has length 20 [2018-10-10 14:52:47,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:47,143 INFO L481 AbstractCegarLoop]: Abstraction has 626 states and 649 transitions. [2018-10-10 14:52:47,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:52:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 649 transitions. [2018-10-10 14:52:47,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-10 14:52:47,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:47,145 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] [2018-10-10 14:52:47,147 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:47,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:47,147 INFO L82 PathProgramCache]: Analyzing trace with hash -327165807, now seen corresponding path program 1 times [2018-10-10 14:52:47,148 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:47,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:47,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:47,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:47,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:47,300 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 14:52:47,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:47,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:52:47,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:52:47,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:52:47,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:52:47,303 INFO L87 Difference]: Start difference. First operand 626 states and 649 transitions. Second operand 7 states. [2018-10-10 14:52:48,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:48,113 INFO L93 Difference]: Finished difference Result 1256 states and 1307 transitions. [2018-10-10 14:52:48,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:52:48,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-10-10 14:52:48,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:48,122 INFO L225 Difference]: With dead ends: 1256 [2018-10-10 14:52:48,122 INFO L226 Difference]: Without dead ends: 1256 [2018-10-10 14:52:48,123 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:52:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2018-10-10 14:52:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 625. [2018-10-10 14:52:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-10-10 14:52:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 648 transitions. [2018-10-10 14:52:48,142 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 648 transitions. Word has length 30 [2018-10-10 14:52:48,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:48,142 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 648 transitions. [2018-10-10 14:52:48,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:52:48,142 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 648 transitions. [2018-10-10 14:52:48,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-10 14:52:48,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:48,145 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] [2018-10-10 14:52:48,148 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:48,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:48,148 INFO L82 PathProgramCache]: Analyzing trace with hash -480759378, now seen corresponding path program 1 times [2018-10-10 14:52:48,148 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:48,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:48,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:48,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:48,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:48,247 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 14:52:48,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:48,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:52:48,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 14:52:48,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 14:52:48,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:52:48,249 INFO L87 Difference]: Start difference. First operand 625 states and 648 transitions. Second operand 4 states. [2018-10-10 14:52:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:48,586 INFO L93 Difference]: Finished difference Result 1205 states and 1250 transitions. [2018-10-10 14:52:48,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:52:48,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-10-10 14:52:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:48,593 INFO L225 Difference]: With dead ends: 1205 [2018-10-10 14:52:48,593 INFO L226 Difference]: Without dead ends: 1205 [2018-10-10 14:52:48,594 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:52:48,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2018-10-10 14:52:48,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 628. [2018-10-10 14:52:48,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2018-10-10 14:52:48,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 651 transitions. [2018-10-10 14:52:48,612 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 651 transitions. Word has length 60 [2018-10-10 14:52:48,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:48,613 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 651 transitions. [2018-10-10 14:52:48,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 14:52:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 651 transitions. [2018-10-10 14:52:48,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-10 14:52:48,615 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:48,615 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] [2018-10-10 14:52:48,617 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:48,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:48,618 INFO L82 PathProgramCache]: Analyzing trace with hash 182202577, now seen corresponding path program 1 times [2018-10-10 14:52:48,618 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:48,618 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:48,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:48,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:48,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:48,948 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 14:52:48,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:48,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:52:48,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:52:48,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:52:48,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:52:48,950 INFO L87 Difference]: Start difference. First operand 628 states and 651 transitions. Second operand 5 states. [2018-10-10 14:52:50,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:50,588 INFO L93 Difference]: Finished difference Result 1432 states and 1497 transitions. [2018-10-10 14:52:50,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:52:50,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2018-10-10 14:52:50,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:50,599 INFO L225 Difference]: With dead ends: 1432 [2018-10-10 14:52:50,599 INFO L226 Difference]: Without dead ends: 1432 [2018-10-10 14:52:50,600 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:52:50,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2018-10-10 14:52:50,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 731. [2018-10-10 14:52:50,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2018-10-10 14:52:50,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 768 transitions. [2018-10-10 14:52:50,622 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 768 transitions. Word has length 62 [2018-10-10 14:52:50,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:50,623 INFO L481 AbstractCegarLoop]: Abstraction has 731 states and 768 transitions. [2018-10-10 14:52:50,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:52:50,623 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 768 transitions. [2018-10-10 14:52:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-10 14:52:50,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:50,625 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 14:52:50,627 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:50,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:50,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1353313366, now seen corresponding path program 1 times [2018-10-10 14:52:50,627 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:50,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:50,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:50,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:50,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:50,977 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 14:52:50,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:50,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:52:50,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:52:50,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:52:50,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:52:50,979 INFO L87 Difference]: Start difference. First operand 731 states and 768 transitions. Second operand 8 states. [2018-10-10 14:52:51,629 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 14:52:52,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:52,691 INFO L93 Difference]: Finished difference Result 1118 states and 1169 transitions. [2018-10-10 14:52:52,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:52:52,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2018-10-10 14:52:52,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:52,698 INFO L225 Difference]: With dead ends: 1118 [2018-10-10 14:52:52,698 INFO L226 Difference]: Without dead ends: 1118 [2018-10-10 14:52:52,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:52:52,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2018-10-10 14:52:52,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 967. [2018-10-10 14:52:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2018-10-10 14:52:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1045 transitions. [2018-10-10 14:52:52,719 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1045 transitions. Word has length 63 [2018-10-10 14:52:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:52,719 INFO L481 AbstractCegarLoop]: Abstraction has 967 states and 1045 transitions. [2018-10-10 14:52:52,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:52:52,719 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1045 transitions. [2018-10-10 14:52:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-10 14:52:52,720 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:52,721 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 14:52:52,722 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:52,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:52,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1767744918, now seen corresponding path program 1 times [2018-10-10 14:52:52,723 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:52,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:52,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:52,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:52,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:52,997 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 14:52:52,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:52,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:52:52,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:52:52,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:52:52,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:52:52,999 INFO L87 Difference]: Start difference. First operand 967 states and 1045 transitions. Second operand 8 states. [2018-10-10 14:52:53,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:53,691 INFO L93 Difference]: Finished difference Result 1117 states and 1168 transitions. [2018-10-10 14:52:53,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:52:53,692 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2018-10-10 14:52:53,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:53,698 INFO L225 Difference]: With dead ends: 1117 [2018-10-10 14:52:53,698 INFO L226 Difference]: Without dead ends: 1117 [2018-10-10 14:52:53,699 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:52:53,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2018-10-10 14:52:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 967. [2018-10-10 14:52:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2018-10-10 14:52:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1045 transitions. [2018-10-10 14:52:53,718 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1045 transitions. Word has length 63 [2018-10-10 14:52:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:53,718 INFO L481 AbstractCegarLoop]: Abstraction has 967 states and 1045 transitions. [2018-10-10 14:52:53,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:52:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1045 transitions. [2018-10-10 14:52:53,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-10 14:52:53,720 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:53,720 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] [2018-10-10 14:52:53,722 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:53,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:53,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1666427423, now seen corresponding path program 1 times [2018-10-10 14:52:53,722 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:53,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:53,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:53,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:53,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:53,811 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 14:52:53,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:53,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:52:53,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:52:53,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:52:53,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:52:53,813 INFO L87 Difference]: Start difference. First operand 967 states and 1045 transitions. Second operand 3 states. [2018-10-10 14:52:54,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:54,471 INFO L93 Difference]: Finished difference Result 1160 states and 1237 transitions. [2018-10-10 14:52:54,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:52:54,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2018-10-10 14:52:54,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:54,484 INFO L225 Difference]: With dead ends: 1160 [2018-10-10 14:52:54,484 INFO L226 Difference]: Without dead ends: 1158 [2018-10-10 14:52:54,485 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:52:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2018-10-10 14:52:54,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 978. [2018-10-10 14:52:54,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2018-10-10 14:52:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1056 transitions. [2018-10-10 14:52:54,500 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1056 transitions. Word has length 75 [2018-10-10 14:52:54,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:54,501 INFO L481 AbstractCegarLoop]: Abstraction has 978 states and 1056 transitions. [2018-10-10 14:52:54,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:52:54,501 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1056 transitions. [2018-10-10 14:52:54,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-10 14:52:54,502 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:54,503 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] [2018-10-10 14:52:54,509 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:54,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:54,509 INFO L82 PathProgramCache]: Analyzing trace with hash -119612996, now seen corresponding path program 1 times [2018-10-10 14:52:54,509 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:54,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:54,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:54,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:54,615 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 14:52:54,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:54,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:52:54,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:52:54,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:52:54,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:52:54,618 INFO L87 Difference]: Start difference. First operand 978 states and 1056 transitions. Second operand 3 states. [2018-10-10 14:52:54,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:54,761 INFO L93 Difference]: Finished difference Result 1287 states and 1343 transitions. [2018-10-10 14:52:54,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:52:54,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2018-10-10 14:52:54,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:54,765 INFO L225 Difference]: With dead ends: 1287 [2018-10-10 14:52:54,766 INFO L226 Difference]: Without dead ends: 1261 [2018-10-10 14:52:54,766 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:52:54,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2018-10-10 14:52:54,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 956. [2018-10-10 14:52:54,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 956 states. [2018-10-10 14:52:54,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1030 transitions. [2018-10-10 14:52:54,781 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1030 transitions. Word has length 76 [2018-10-10 14:52:54,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:54,781 INFO L481 AbstractCegarLoop]: Abstraction has 956 states and 1030 transitions. [2018-10-10 14:52:54,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:52:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1030 transitions. [2018-10-10 14:52:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-10 14:52:54,783 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:54,783 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] [2018-10-10 14:52:54,784 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:54,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:54,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1654993476, now seen corresponding path program 1 times [2018-10-10 14:52:54,785 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:54,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:54,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:54,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:54,864 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 14:52:54,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:54,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:52:54,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:52:54,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:52:54,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:52:54,865 INFO L87 Difference]: Start difference. First operand 956 states and 1030 transitions. Second operand 3 states. [2018-10-10 14:52:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:54,917 INFO L93 Difference]: Finished difference Result 959 states and 1033 transitions. [2018-10-10 14:52:54,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:52:54,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2018-10-10 14:52:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:54,921 INFO L225 Difference]: With dead ends: 959 [2018-10-10 14:52:54,921 INFO L226 Difference]: Without dead ends: 959 [2018-10-10 14:52:54,922 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:52:54,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2018-10-10 14:52:54,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2018-10-10 14:52:54,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2018-10-10 14:52:54,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1033 transitions. [2018-10-10 14:52:54,934 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1033 transitions. Word has length 84 [2018-10-10 14:52:54,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:54,934 INFO L481 AbstractCegarLoop]: Abstraction has 959 states and 1033 transitions. [2018-10-10 14:52:54,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:52:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1033 transitions. [2018-10-10 14:52:54,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-10 14:52:54,935 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:54,936 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] [2018-10-10 14:52:54,937 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:54,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:54,938 INFO L82 PathProgramCache]: Analyzing trace with hash 375781511, now seen corresponding path program 1 times [2018-10-10 14:52:54,938 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:54,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:54,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:54,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:55,087 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 14:52:55,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:55,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:52:55,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 14:52:55,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 14:52:55,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:52:55,089 INFO L87 Difference]: Start difference. First operand 959 states and 1033 transitions. Second operand 4 states. [2018-10-10 14:52:55,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:55,151 INFO L93 Difference]: Finished difference Result 1466 states and 1557 transitions. [2018-10-10 14:52:55,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:52:55,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2018-10-10 14:52:55,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:55,157 INFO L225 Difference]: With dead ends: 1466 [2018-10-10 14:52:55,157 INFO L226 Difference]: Without dead ends: 1466 [2018-10-10 14:52:55,158 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:52:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2018-10-10 14:52:55,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 962. [2018-10-10 14:52:55,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2018-10-10 14:52:55,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1034 transitions. [2018-10-10 14:52:55,173 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1034 transitions. Word has length 86 [2018-10-10 14:52:55,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:55,174 INFO L481 AbstractCegarLoop]: Abstraction has 962 states and 1034 transitions. [2018-10-10 14:52:55,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 14:52:55,174 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1034 transitions. [2018-10-10 14:52:55,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-10 14:52:55,176 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:55,176 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] [2018-10-10 14:52:55,177 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:55,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:55,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1036311478, now seen corresponding path program 1 times [2018-10-10 14:52:55,181 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:55,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:55,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:55,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:55,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:55,830 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 14:52:55,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:55,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:52:55,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:52:55,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:52:55,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:52:55,831 INFO L87 Difference]: Start difference. First operand 962 states and 1034 transitions. Second operand 9 states. [2018-10-10 14:52:57,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:57,816 INFO L93 Difference]: Finished difference Result 1688 states and 1790 transitions. [2018-10-10 14:52:57,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 14:52:57,817 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2018-10-10 14:52:57,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:57,823 INFO L225 Difference]: With dead ends: 1688 [2018-10-10 14:52:57,823 INFO L226 Difference]: Without dead ends: 1688 [2018-10-10 14:52:57,824 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2018-10-10 14:52:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2018-10-10 14:52:57,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1006. [2018-10-10 14:52:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2018-10-10 14:52:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1082 transitions. [2018-10-10 14:52:57,839 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1082 transitions. Word has length 88 [2018-10-10 14:52:57,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:57,839 INFO L481 AbstractCegarLoop]: Abstraction has 1006 states and 1082 transitions. [2018-10-10 14:52:57,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:52:57,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1082 transitions. [2018-10-10 14:52:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-10 14:52:57,840 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:57,840 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] [2018-10-10 14:52:57,841 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:57,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:57,841 INFO L82 PathProgramCache]: Analyzing trace with hash -2060884231, now seen corresponding path program 1 times [2018-10-10 14:52:57,841 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:57,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:57,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:57,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:57,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:52:58,079 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 14:52:58,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:52:58,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-10 14:52:58,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 14:52:58,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 14:52:58,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:52:58,081 INFO L87 Difference]: Start difference. First operand 1006 states and 1082 transitions. Second operand 11 states. [2018-10-10 14:52:59,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:52:59,955 INFO L93 Difference]: Finished difference Result 1229 states and 1284 transitions. [2018-10-10 14:52:59,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:52:59,956 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2018-10-10 14:52:59,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:52:59,960 INFO L225 Difference]: With dead ends: 1229 [2018-10-10 14:52:59,960 INFO L226 Difference]: Without dead ends: 1229 [2018-10-10 14:52:59,961 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2018-10-10 14:52:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-10-10 14:52:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1006. [2018-10-10 14:52:59,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2018-10-10 14:52:59,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1075 transitions. [2018-10-10 14:52:59,977 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1075 transitions. Word has length 89 [2018-10-10 14:52:59,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:52:59,977 INFO L481 AbstractCegarLoop]: Abstraction has 1006 states and 1075 transitions. [2018-10-10 14:52:59,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 14:52:59,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1075 transitions. [2018-10-10 14:52:59,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-10 14:52:59,978 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:52:59,979 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] [2018-10-10 14:52:59,979 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:52:59,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:52:59,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1687447392, now seen corresponding path program 1 times [2018-10-10 14:52:59,980 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:52:59,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:52:59,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:59,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:52:59,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:52:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:00,370 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-10 14:53:00,556 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-10-10 14:53:00,764 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 14:53:00,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:00,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-10 14:53:00,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 14:53:00,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 14:53:00,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:53:00,766 INFO L87 Difference]: Start difference. First operand 1006 states and 1075 transitions. Second operand 11 states. [2018-10-10 14:53:02,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:02,055 INFO L93 Difference]: Finished difference Result 1230 states and 1283 transitions. [2018-10-10 14:53:02,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:53:02,055 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2018-10-10 14:53:02,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:02,061 INFO L225 Difference]: With dead ends: 1230 [2018-10-10 14:53:02,061 INFO L226 Difference]: Without dead ends: 1230 [2018-10-10 14:53:02,062 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2018-10-10 14:53:02,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2018-10-10 14:53:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1006. [2018-10-10 14:53:02,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2018-10-10 14:53:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1071 transitions. [2018-10-10 14:53:02,073 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1071 transitions. Word has length 101 [2018-10-10 14:53:02,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:02,074 INFO L481 AbstractCegarLoop]: Abstraction has 1006 states and 1071 transitions. [2018-10-10 14:53:02,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 14:53:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1071 transitions. [2018-10-10 14:53:02,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-10 14:53:02,075 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:02,075 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] [2018-10-10 14:53:02,076 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:02,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:02,076 INFO L82 PathProgramCache]: Analyzing trace with hash 564367002, now seen corresponding path program 1 times [2018-10-10 14:53:02,076 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:02,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:02,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:02,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:02,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:02,843 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 14:53:02,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:02,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 14:53:02,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 14:53:02,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 14:53:02,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-10 14:53:02,844 INFO L87 Difference]: Start difference. First operand 1006 states and 1071 transitions. Second operand 12 states. [2018-10-10 14:53:05,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:05,422 INFO L93 Difference]: Finished difference Result 2652 states and 2790 transitions. [2018-10-10 14:53:05,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-10 14:53:05,427 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2018-10-10 14:53:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:05,434 INFO L225 Difference]: With dead ends: 2652 [2018-10-10 14:53:05,434 INFO L226 Difference]: Without dead ends: 2652 [2018-10-10 14:53:05,435 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2018-10-10 14:53:05,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2018-10-10 14:53:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 1103. [2018-10-10 14:53:05,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2018-10-10 14:53:05,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1176 transitions. [2018-10-10 14:53:05,450 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1176 transitions. Word has length 106 [2018-10-10 14:53:05,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:05,450 INFO L481 AbstractCegarLoop]: Abstraction has 1103 states and 1176 transitions. [2018-10-10 14:53:05,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 14:53:05,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1176 transitions. [2018-10-10 14:53:05,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-10 14:53:05,451 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:05,452 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] [2018-10-10 14:53:05,452 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:05,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:05,452 INFO L82 PathProgramCache]: Analyzing trace with hash 315508080, now seen corresponding path program 1 times [2018-10-10 14:53:05,453 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:05,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:05,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:05,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:05,454 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 14:53:06,130 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 14:53:06,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:06,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-10-10 14:53:06,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-10 14:53:06,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-10 14:53:06,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2018-10-10 14:53:06,132 INFO L87 Difference]: Start difference. First operand 1103 states and 1176 transitions. Second operand 22 states. [2018-10-10 14:53:07,389 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2018-10-10 14:53:07,826 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-10 14:53:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:13,497 INFO L93 Difference]: Finished difference Result 3224 states and 3374 transitions. [2018-10-10 14:53:13,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-10-10 14:53:13,498 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 107 [2018-10-10 14:53:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:13,508 INFO L225 Difference]: With dead ends: 3224 [2018-10-10 14:53:13,508 INFO L226 Difference]: Without dead ends: 3224 [2018-10-10 14:53:13,509 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=400, Invalid=1670, Unknown=0, NotChecked=0, Total=2070 [2018-10-10 14:53:13,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3224 states. [2018-10-10 14:53:13,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3224 to 1157. [2018-10-10 14:53:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2018-10-10 14:53:13,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1234 transitions. [2018-10-10 14:53:13,528 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1234 transitions. Word has length 107 [2018-10-10 14:53:13,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:13,528 INFO L481 AbstractCegarLoop]: Abstraction has 1157 states and 1234 transitions. [2018-10-10 14:53:13,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-10 14:53:13,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1234 transitions. [2018-10-10 14:53:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-10 14:53:13,529 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:13,529 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] [2018-10-10 14:53:13,530 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:13,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:13,530 INFO L82 PathProgramCache]: Analyzing trace with hash 36907770, now seen corresponding path program 1 times [2018-10-10 14:53:13,530 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:13,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:13,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:13,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:13,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:13,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:13,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:13,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 14:53:13,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:53:13,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:53:13,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:53:13,717 INFO L87 Difference]: Start difference. First operand 1157 states and 1234 transitions. Second operand 9 states. [2018-10-10 14:53:14,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:14,014 INFO L93 Difference]: Finished difference Result 1178 states and 1227 transitions. [2018-10-10 14:53:14,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-10 14:53:14,015 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2018-10-10 14:53:14,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:14,018 INFO L225 Difference]: With dead ends: 1178 [2018-10-10 14:53:14,018 INFO L226 Difference]: Without dead ends: 1178 [2018-10-10 14:53:14,019 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2018-10-10 14:53:14,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2018-10-10 14:53:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1097. [2018-10-10 14:53:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2018-10-10 14:53:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1164 transitions. [2018-10-10 14:53:14,029 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1164 transitions. Word has length 107 [2018-10-10 14:53:14,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:14,029 INFO L481 AbstractCegarLoop]: Abstraction has 1097 states and 1164 transitions. [2018-10-10 14:53:14,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:53:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1164 transitions. [2018-10-10 14:53:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-10 14:53:14,030 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:14,030 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] [2018-10-10 14:53:14,030 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:14,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:14,031 INFO L82 PathProgramCache]: Analyzing trace with hash -972028425, now seen corresponding path program 1 times [2018-10-10 14:53:14,031 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:14,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:14,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:14,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:14,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:14,862 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 14:53:14,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:14,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-10-10 14:53:14,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-10 14:53:14,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-10 14:53:14,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2018-10-10 14:53:14,864 INFO L87 Difference]: Start difference. First operand 1097 states and 1164 transitions. Second operand 19 states. [2018-10-10 14:53:18,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:18,191 INFO L93 Difference]: Finished difference Result 1727 states and 1793 transitions. [2018-10-10 14:53:18,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-10 14:53:18,192 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 127 [2018-10-10 14:53:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:18,198 INFO L225 Difference]: With dead ends: 1727 [2018-10-10 14:53:18,198 INFO L226 Difference]: Without dead ends: 1727 [2018-10-10 14:53:18,198 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=517, Invalid=1739, Unknown=0, NotChecked=0, Total=2256 [2018-10-10 14:53:18,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2018-10-10 14:53:18,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 931. [2018-10-10 14:53:18,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2018-10-10 14:53:18,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 972 transitions. [2018-10-10 14:53:18,208 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 972 transitions. Word has length 127 [2018-10-10 14:53:18,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:18,208 INFO L481 AbstractCegarLoop]: Abstraction has 931 states and 972 transitions. [2018-10-10 14:53:18,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-10 14:53:18,209 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 972 transitions. [2018-10-10 14:53:18,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-10 14:53:18,210 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:18,210 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] [2018-10-10 14:53:18,210 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:18,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:18,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1876543143, now seen corresponding path program 1 times [2018-10-10 14:53:18,211 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:18,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:18,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:18,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:18,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:19,046 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2018-10-10 14:53:19,396 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 14:53:19,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:19,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-10-10 14:53:19,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-10 14:53:19,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-10 14:53:19,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2018-10-10 14:53:19,398 INFO L87 Difference]: Start difference. First operand 931 states and 972 transitions. Second operand 22 states. [2018-10-10 14:53:20,229 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-10-10 14:53:20,635 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2018-10-10 14:53:20,988 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-10-10 14:53:21,203 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2018-10-10 14:53:21,501 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2018-10-10 14:53:21,737 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-10-10 14:53:22,022 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2018-10-10 14:53:22,288 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2018-10-10 14:53:22,554 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-10-10 14:53:22,826 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2018-10-10 14:53:23,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:23,719 INFO L93 Difference]: Finished difference Result 1015 states and 1048 transitions. [2018-10-10 14:53:23,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-10-10 14:53:23,719 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 128 [2018-10-10 14:53:23,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:23,724 INFO L225 Difference]: With dead ends: 1015 [2018-10-10 14:53:23,724 INFO L226 Difference]: Without dead ends: 1015 [2018-10-10 14:53:23,725 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 0 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=530, Invalid=1540, Unknown=0, NotChecked=0, Total=2070 [2018-10-10 14:53:23,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2018-10-10 14:53:23,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 960. [2018-10-10 14:53:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2018-10-10 14:53:23,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 999 transitions. [2018-10-10 14:53:23,733 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 999 transitions. Word has length 128 [2018-10-10 14:53:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:23,733 INFO L481 AbstractCegarLoop]: Abstraction has 960 states and 999 transitions. [2018-10-10 14:53:23,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-10 14:53:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 999 transitions. [2018-10-10 14:53:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-10 14:53:23,734 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:23,734 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:23,735 INFO L424 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:23,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:23,735 INFO L82 PathProgramCache]: Analyzing trace with hash 706279726, now seen corresponding path program 1 times [2018-10-10 14:53:23,735 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:23,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:23,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:23,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:23,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:23,999 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 14:53:23,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:24,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:53:24,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:53:24,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:53:24,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:53:24,001 INFO L87 Difference]: Start difference. First operand 960 states and 999 transitions. Second operand 6 states. [2018-10-10 14:53:24,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:24,602 INFO L93 Difference]: Finished difference Result 1262 states and 1313 transitions. [2018-10-10 14:53:24,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:53:24,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-10-10 14:53:24,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:24,608 INFO L225 Difference]: With dead ends: 1262 [2018-10-10 14:53:24,608 INFO L226 Difference]: Without dead ends: 1262 [2018-10-10 14:53:24,608 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-10 14:53:24,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2018-10-10 14:53:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 958. [2018-10-10 14:53:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 958 states. [2018-10-10 14:53:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 997 transitions. [2018-10-10 14:53:24,618 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 997 transitions. Word has length 136 [2018-10-10 14:53:24,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:24,618 INFO L481 AbstractCegarLoop]: Abstraction has 958 states and 997 transitions. [2018-10-10 14:53:24,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:53:24,619 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 997 transitions. [2018-10-10 14:53:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-10 14:53:24,619 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:24,619 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] [2018-10-10 14:53:24,620 INFO L424 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:24,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:24,620 INFO L82 PathProgramCache]: Analyzing trace with hash 419835327, now seen corresponding path program 1 times [2018-10-10 14:53:24,620 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:24,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:24,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:24,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:24,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:25,022 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-10 14:53:25,222 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-10-10 14:53:25,461 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-10-10 14:53:25,832 WARN L178 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 9 [2018-10-10 14:53:26,306 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-10-10 14:53:26,621 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-10-10 14:53:26,663 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 14:53:26,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:26,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:53:26,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:53:26,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:53:26,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:53:26,665 INFO L87 Difference]: Start difference. First operand 958 states and 997 transitions. Second operand 9 states. [2018-10-10 14:53:27,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:27,199 INFO L93 Difference]: Finished difference Result 964 states and 998 transitions. [2018-10-10 14:53:27,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:53:27,200 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 137 [2018-10-10 14:53:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:27,205 INFO L225 Difference]: With dead ends: 964 [2018-10-10 14:53:27,205 INFO L226 Difference]: Without dead ends: 964 [2018-10-10 14:53:27,206 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:53:27,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2018-10-10 14:53:27,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 957. [2018-10-10 14:53:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2018-10-10 14:53:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 996 transitions. [2018-10-10 14:53:27,214 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 996 transitions. Word has length 137 [2018-10-10 14:53:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:27,215 INFO L481 AbstractCegarLoop]: Abstraction has 957 states and 996 transitions. [2018-10-10 14:53:27,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:53:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 996 transitions. [2018-10-10 14:53:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-10 14:53:27,216 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:27,216 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] [2018-10-10 14:53:27,216 INFO L424 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:27,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:27,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1595106220, now seen corresponding path program 1 times [2018-10-10 14:53:27,217 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:27,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:27,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:27,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:27,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:28,430 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 14:53:28,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:28,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2018-10-10 14:53:28,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-10 14:53:28,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-10 14:53:28,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2018-10-10 14:53:28,432 INFO L87 Difference]: Start difference. First operand 957 states and 996 transitions. Second operand 23 states. [2018-10-10 14:53:29,837 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2018-10-10 14:53:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:32,916 INFO L93 Difference]: Finished difference Result 2515 states and 2603 transitions. [2018-10-10 14:53:32,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-10-10 14:53:32,918 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 146 [2018-10-10 14:53:32,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:32,925 INFO L225 Difference]: With dead ends: 2515 [2018-10-10 14:53:32,925 INFO L226 Difference]: Without dead ends: 2515 [2018-10-10 14:53:32,927 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1257, Invalid=3435, Unknown=0, NotChecked=0, Total=4692 [2018-10-10 14:53:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2018-10-10 14:53:32,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 1022. [2018-10-10 14:53:32,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1022 states. [2018-10-10 14:53:32,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1070 transitions. [2018-10-10 14:53:32,944 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1070 transitions. Word has length 146 [2018-10-10 14:53:32,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:32,944 INFO L481 AbstractCegarLoop]: Abstraction has 1022 states and 1070 transitions. [2018-10-10 14:53:32,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-10-10 14:53:32,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1070 transitions. [2018-10-10 14:53:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-10 14:53:32,946 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:32,946 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] [2018-10-10 14:53:32,947 INFO L424 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:32,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:32,948 INFO L82 PathProgramCache]: Analyzing trace with hash 581403480, now seen corresponding path program 1 times [2018-10-10 14:53:32,948 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:32,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:32,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:32,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:32,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:33,242 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 14:53:33,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:33,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-10 14:53:33,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 14:53:33,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 14:53:33,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:53:33,244 INFO L87 Difference]: Start difference. First operand 1022 states and 1070 transitions. Second operand 9 states. [2018-10-10 14:53:33,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:33,699 INFO L93 Difference]: Finished difference Result 1031 states and 1073 transitions. [2018-10-10 14:53:33,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:53:33,700 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 149 [2018-10-10 14:53:33,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:33,703 INFO L225 Difference]: With dead ends: 1031 [2018-10-10 14:53:33,703 INFO L226 Difference]: Without dead ends: 1031 [2018-10-10 14:53:33,704 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:53:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2018-10-10 14:53:33,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1021. [2018-10-10 14:53:33,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2018-10-10 14:53:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1068 transitions. [2018-10-10 14:53:33,715 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1068 transitions. Word has length 149 [2018-10-10 14:53:33,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:33,715 INFO L481 AbstractCegarLoop]: Abstraction has 1021 states and 1068 transitions. [2018-10-10 14:53:33,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 14:53:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1068 transitions. [2018-10-10 14:53:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-10 14:53:33,716 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:33,716 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:33,716 INFO L424 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:33,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:33,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2095423632, now seen corresponding path program 1 times [2018-10-10 14:53:33,717 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:33,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:33,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:33,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:33,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:34,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:34,078 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:53:34,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:34,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:34,328 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:34,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:34,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-10-10 14:53:34,414 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_#t~short26's outvar occurs in several conjuncts [(let ((.cse0 (< v_ULTIMATE.start_main_~i~0_3 3))) (or (and (not .cse0) (not |v_ULTIMATE.start_main_#t~short26_2|)) (and |v_ULTIMATE.start_main_#t~short26_2| .cse0)))] at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.addStatementsAndVariables(PathProgramDumper.java:634) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructTransitionStatements(PathProgramDumper.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.processTransition(PathProgramDumper.java:521) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructProcedureStatements(PathProgramDumper.java:489) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructNewImplementation(PathProgramDumper.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.(PathProgramDumper.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.doDump(PathProgramDumpController.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.reportPathProgram(PathProgramDumpController.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-10 14:53:34,421 INFO L168 Benchmark]: Toolchain (without parser) took 54219.76 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -971.8 MB). Peak memory consumption was 265.0 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:34,422 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:34,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.12 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:34,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:34,423 INFO L168 Benchmark]: Boogie Preprocessor took 147.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -828.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:34,426 INFO L168 Benchmark]: RCFGBuilder took 2551.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 121.0 MB). Peak memory consumption was 121.0 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:34,427 INFO L168 Benchmark]: TraceAbstraction took 50856.09 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 496.0 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -306.8 MB). Peak memory consumption was 189.2 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:34,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 569.12 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 91.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -828.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2551.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 121.0 MB). Peak memory consumption was 121.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50856.09 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 496.0 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -306.8 MB). Peak memory consumption was 189.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_#t~short26's outvar occurs in several conjuncts [(let ((.cse0 (< v_ULTIMATE.start_main_~i~0_3 3))) (or (and (not .cse0) (not |v_ULTIMATE.start_main_#t~short26_2|)) (and |v_ULTIMATE.start_main_#t~short26_2| .cse0)))] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_#t~short26's outvar occurs in several conjuncts [(let ((.cse0 (< v_ULTIMATE.start_main_~i~0_3 3))) (or (and (not .cse0) (not |v_ULTIMATE.start_main_#t~short26_2|)) (and |v_ULTIMATE.start_main_#t~short26_2| .cse0)))]: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...