/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:21:27,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:21:27,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:21:27,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:21:27,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:21:27,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:21:27,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:21:27,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:21:27,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:21:27,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:21:27,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:21:27,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:21:27,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:21:27,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:21:27,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:21:27,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:21:27,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:21:27,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:21:27,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:21:27,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:21:27,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:21:27,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:21:27,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:21:27,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:21:27,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 19:21:27,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 19:21:27,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 19:21:27,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 19:21:27,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 19:21:27,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 19:21:27,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:21:27,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:21:27,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:21:27,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:21:27,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:21:27,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:21:27,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:21:27,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:21:27,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:21:27,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:21:27,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:21:27,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:21:27,480 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:21:27,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:21:27,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:21:27,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:21:27,486 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:21:27,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:21:27,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:21:27,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:21:27,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:21:27,488 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:21:27,489 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:21:27,489 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:21:27,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:21:27,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:21:27,490 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:21:27,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:21:27,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:21:27,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:21:27,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:21:27,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:21:27,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:21:27,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:21:27,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:21:27,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:21:27,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:21:27,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:21:27,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:21:27,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:21:27,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:21:27,920 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:21:27,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i [2020-12-22 19:21:28,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f590b8c5/1b0aa454bed446a2bbef9dcb3b8890ba/FLAG59a5d5836 [2020-12-22 19:21:28,682 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:21:28,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i [2020-12-22 19:21:28,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f590b8c5/1b0aa454bed446a2bbef9dcb3b8890ba/FLAG59a5d5836 [2020-12-22 19:21:28,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f590b8c5/1b0aa454bed446a2bbef9dcb3b8890ba [2020-12-22 19:21:28,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:21:28,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:21:28,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:21:28,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:21:28,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:21:28,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:21:28" (1/1) ... [2020-12-22 19:21:28,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b348a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:28, skipping insertion in model container [2020-12-22 19:21:28,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:21:28" (1/1) ... [2020-12-22 19:21:28,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:21:29,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:21:29,382 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22665,22678] [2020-12-22 19:21:29,387 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22735,22748] [2020-12-22 19:21:29,388 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22799,22812] [2020-12-22 19:21:29,389 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22894,22907] [2020-12-22 19:21:29,391 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22966,22979] [2020-12-22 19:21:29,393 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[23105,23118] [2020-12-22 19:21:29,394 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[23179,23192] [2020-12-22 19:21:29,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:21:29,412 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:21:29,455 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22665,22678] [2020-12-22 19:21:29,457 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22735,22748] [2020-12-22 19:21:29,458 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22799,22812] [2020-12-22 19:21:29,459 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22894,22907] [2020-12-22 19:21:29,460 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22966,22979] [2020-12-22 19:21:29,462 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[23105,23118] [2020-12-22 19:21:29,463 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[23179,23192] [2020-12-22 19:21:29,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:21:29,529 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:21:29,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29 WrapperNode [2020-12-22 19:21:29,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:21:29,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:21:29,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:21:29,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:21:29,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:21:29,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:21:29,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:21:29,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:21:29,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (1/1) ... [2020-12-22 19:21:29,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:21:29,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:21:29,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:21:29,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:21:29,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (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 [2020-12-22 19:21:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 19:21:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 19:21:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 19:21:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 19:21:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:21:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 19:21:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 19:21:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 19:21:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:21:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:21:30,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:21:30,590 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2020-12-22 19:21:30,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:21:30 BoogieIcfgContainer [2020-12-22 19:21:30,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:21:30,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:21:30,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:21:30,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:21:30,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:21:28" (1/3) ... [2020-12-22 19:21:30,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353439e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:21:30, skipping insertion in model container [2020-12-22 19:21:30,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:21:29" (2/3) ... [2020-12-22 19:21:30,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353439e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:21:30, skipping insertion in model container [2020-12-22 19:21:30,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:21:30" (3/3) ... [2020-12-22 19:21:30,611 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-12-22 19:21:30,619 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:21:30,630 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2020-12-22 19:21:30,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2020-12-22 19:21:30,698 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:21:30,699 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:21:30,699 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:21:30,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:21:30,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:21:30,700 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:21:30,700 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:21:30,700 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:21:30,744 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-12-22 19:21:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 19:21:30,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:30,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 19:21:30,756 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:30,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-22 19:21:30,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:30,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628263801] [2020-12-22 19:21:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:31,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:31,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628263801] [2020-12-22 19:21:31,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:31,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:21:31,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323277391] [2020-12-22 19:21:31,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:21:31,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:31,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:21:31,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:21:31,054 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 3 states. [2020-12-22 19:21:31,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:31,302 INFO L93 Difference]: Finished difference Result 191 states and 197 transitions. [2020-12-22 19:21:31,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:21:31,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 19:21:31,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:31,317 INFO L225 Difference]: With dead ends: 191 [2020-12-22 19:21:31,317 INFO L226 Difference]: Without dead ends: 187 [2020-12-22 19:21:31,319 INFO L677 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 [2020-12-22 19:21:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-12-22 19:21:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 159. [2020-12-22 19:21:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-12-22 19:21:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 164 transitions. [2020-12-22 19:21:31,371 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 164 transitions. Word has length 3 [2020-12-22 19:21:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:31,389 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 164 transitions. [2020-12-22 19:21:31,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:21:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 164 transitions. [2020-12-22 19:21:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 19:21:31,390 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:31,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 19:21:31,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:21:31,391 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:31,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:31,392 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-22 19:21:31,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:31,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344301654] [2020-12-22 19:21:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:31,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344301654] [2020-12-22 19:21:31,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:31,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:21:31,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620926211] [2020-12-22 19:21:31,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:21:31,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:31,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:21:31,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:21:31,506 INFO L87 Difference]: Start difference. First operand 159 states and 164 transitions. Second operand 3 states. [2020-12-22 19:21:31,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:31,643 INFO L93 Difference]: Finished difference Result 156 states and 161 transitions. [2020-12-22 19:21:31,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:21:31,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 19:21:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:31,645 INFO L225 Difference]: With dead ends: 156 [2020-12-22 19:21:31,646 INFO L226 Difference]: Without dead ends: 156 [2020-12-22 19:21:31,647 INFO L677 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 [2020-12-22 19:21:31,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-22 19:21:31,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-12-22 19:21:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-22 19:21:31,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 161 transitions. [2020-12-22 19:21:31,662 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 161 transitions. Word has length 3 [2020-12-22 19:21:31,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:31,663 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 161 transitions. [2020-12-22 19:21:31,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:21:31,663 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 161 transitions. [2020-12-22 19:21:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 19:21:31,663 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:31,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:31,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:21:31,664 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:31,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:31,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1803026981, now seen corresponding path program 1 times [2020-12-22 19:21:31,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:31,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194846909] [2020-12-22 19:21:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:31,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194846909] [2020-12-22 19:21:31,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:31,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:21:31,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811200227] [2020-12-22 19:21:31,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:21:31,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:31,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:21:31,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:21:31,751 INFO L87 Difference]: Start difference. First operand 156 states and 161 transitions. Second operand 3 states. [2020-12-22 19:21:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:31,877 INFO L93 Difference]: Finished difference Result 155 states and 160 transitions. [2020-12-22 19:21:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:21:31,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-22 19:21:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:31,879 INFO L225 Difference]: With dead ends: 155 [2020-12-22 19:21:31,879 INFO L226 Difference]: Without dead ends: 155 [2020-12-22 19:21:31,880 INFO L677 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 [2020-12-22 19:21:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-12-22 19:21:31,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 151. [2020-12-22 19:21:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-12-22 19:21:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 158 transitions. [2020-12-22 19:21:31,891 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 158 transitions. Word has length 7 [2020-12-22 19:21:31,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:31,891 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 158 transitions. [2020-12-22 19:21:31,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:21:31,892 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 158 transitions. [2020-12-22 19:21:31,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 19:21:31,892 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:31,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:31,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 19:21:31,893 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:31,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1803026982, now seen corresponding path program 1 times [2020-12-22 19:21:31,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:31,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531345320] [2020-12-22 19:21:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:31,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531345320] [2020-12-22 19:21:31,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:31,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:21:31,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195153357] [2020-12-22 19:21:31,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:21:31,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:31,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:21:31,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:21:31,944 INFO L87 Difference]: Start difference. First operand 151 states and 158 transitions. Second operand 3 states. [2020-12-22 19:21:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:32,069 INFO L93 Difference]: Finished difference Result 168 states and 174 transitions. [2020-12-22 19:21:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:21:32,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-22 19:21:32,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:32,071 INFO L225 Difference]: With dead ends: 168 [2020-12-22 19:21:32,072 INFO L226 Difference]: Without dead ends: 168 [2020-12-22 19:21:32,072 INFO L677 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 [2020-12-22 19:21:32,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-22 19:21:32,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 155. [2020-12-22 19:21:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-22 19:21:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 162 transitions. [2020-12-22 19:21:32,083 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 162 transitions. Word has length 7 [2020-12-22 19:21:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:32,083 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 162 transitions. [2020-12-22 19:21:32,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:21:32,083 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 162 transitions. [2020-12-22 19:21:32,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 19:21:32,084 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:32,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:32,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 19:21:32,085 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:32,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:32,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1253214510, now seen corresponding path program 1 times [2020-12-22 19:21:32,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:32,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191837929] [2020-12-22 19:21:32,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:32,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191837929] [2020-12-22 19:21:32,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:32,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:21:32,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550305951] [2020-12-22 19:21:32,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:21:32,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:32,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:21:32,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:21:32,206 INFO L87 Difference]: Start difference. First operand 155 states and 162 transitions. Second operand 4 states. [2020-12-22 19:21:32,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:32,427 INFO L93 Difference]: Finished difference Result 156 states and 164 transitions. [2020-12-22 19:21:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:21:32,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 19:21:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:32,429 INFO L225 Difference]: With dead ends: 156 [2020-12-22 19:21:32,429 INFO L226 Difference]: Without dead ends: 156 [2020-12-22 19:21:32,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:32,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-22 19:21:32,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 142. [2020-12-22 19:21:32,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-22 19:21:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2020-12-22 19:21:32,437 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 13 [2020-12-22 19:21:32,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:32,437 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2020-12-22 19:21:32,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:21:32,438 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2020-12-22 19:21:32,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 19:21:32,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:32,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:32,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 19:21:32,439 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:32,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:32,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1253214511, now seen corresponding path program 1 times [2020-12-22 19:21:32,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:32,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647224980] [2020-12-22 19:21:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:32,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647224980] [2020-12-22 19:21:32,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:32,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:21:32,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709481049] [2020-12-22 19:21:32,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:21:32,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:32,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:21:32,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:21:32,537 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand 4 states. [2020-12-22 19:21:32,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:32,771 INFO L93 Difference]: Finished difference Result 180 states and 190 transitions. [2020-12-22 19:21:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:21:32,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 19:21:32,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:32,774 INFO L225 Difference]: With dead ends: 180 [2020-12-22 19:21:32,775 INFO L226 Difference]: Without dead ends: 180 [2020-12-22 19:21:32,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:32,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-22 19:21:32,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 151. [2020-12-22 19:21:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-12-22 19:21:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 163 transitions. [2020-12-22 19:21:32,799 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 163 transitions. Word has length 13 [2020-12-22 19:21:32,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:32,803 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 163 transitions. [2020-12-22 19:21:32,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:21:32,804 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 163 transitions. [2020-12-22 19:21:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 19:21:32,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:32,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:32,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 19:21:32,805 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:32,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:32,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1748301425, now seen corresponding path program 1 times [2020-12-22 19:21:32,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:32,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723927347] [2020-12-22 19:21:32,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:32,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723927347] [2020-12-22 19:21:32,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:32,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:21:32,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102685980] [2020-12-22 19:21:32,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:21:32,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:32,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:21:32,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:32,930 INFO L87 Difference]: Start difference. First operand 151 states and 163 transitions. Second operand 5 states. [2020-12-22 19:21:33,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:33,175 INFO L93 Difference]: Finished difference Result 205 states and 221 transitions. [2020-12-22 19:21:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:21:33,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 19:21:33,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:33,177 INFO L225 Difference]: With dead ends: 205 [2020-12-22 19:21:33,178 INFO L226 Difference]: Without dead ends: 205 [2020-12-22 19:21:33,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:21:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-12-22 19:21:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 150. [2020-12-22 19:21:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-12-22 19:21:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 161 transitions. [2020-12-22 19:21:33,184 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 161 transitions. Word has length 15 [2020-12-22 19:21:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:33,184 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 161 transitions. [2020-12-22 19:21:33,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:21:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 161 transitions. [2020-12-22 19:21:33,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 19:21:33,185 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:33,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:33,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 19:21:33,186 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:33,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1748301426, now seen corresponding path program 1 times [2020-12-22 19:21:33,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:33,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237671757] [2020-12-22 19:21:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:33,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:33,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237671757] [2020-12-22 19:21:33,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:33,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:21:33,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852931136] [2020-12-22 19:21:33,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:21:33,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:33,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:21:33,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:33,305 INFO L87 Difference]: Start difference. First operand 150 states and 161 transitions. Second operand 5 states. [2020-12-22 19:21:33,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:33,600 INFO L93 Difference]: Finished difference Result 228 states and 245 transitions. [2020-12-22 19:21:33,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:21:33,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 19:21:33,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:33,602 INFO L225 Difference]: With dead ends: 228 [2020-12-22 19:21:33,603 INFO L226 Difference]: Without dead ends: 228 [2020-12-22 19:21:33,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:21:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-12-22 19:21:33,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 149. [2020-12-22 19:21:33,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-22 19:21:33,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 159 transitions. [2020-12-22 19:21:33,608 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 159 transitions. Word has length 15 [2020-12-22 19:21:33,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:33,609 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 159 transitions. [2020-12-22 19:21:33,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:21:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 159 transitions. [2020-12-22 19:21:33,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 19:21:33,609 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:33,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:33,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 19:21:33,610 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:33,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:33,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1748352159, now seen corresponding path program 1 times [2020-12-22 19:21:33,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:33,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494861072] [2020-12-22 19:21:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:33,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:33,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494861072] [2020-12-22 19:21:33,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:33,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:21:33,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259101134] [2020-12-22 19:21:33,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:21:33,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:33,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:21:33,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:33,654 INFO L87 Difference]: Start difference. First operand 149 states and 159 transitions. Second operand 5 states. [2020-12-22 19:21:33,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:33,868 INFO L93 Difference]: Finished difference Result 190 states and 199 transitions. [2020-12-22 19:21:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:21:33,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 19:21:33,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:33,871 INFO L225 Difference]: With dead ends: 190 [2020-12-22 19:21:33,871 INFO L226 Difference]: Without dead ends: 190 [2020-12-22 19:21:33,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:21:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-12-22 19:21:33,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 147. [2020-12-22 19:21:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-22 19:21:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 155 transitions. [2020-12-22 19:21:33,877 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 155 transitions. Word has length 15 [2020-12-22 19:21:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:33,877 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 155 transitions. [2020-12-22 19:21:33,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:21:33,878 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 155 transitions. [2020-12-22 19:21:33,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 19:21:33,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:33,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:33,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 19:21:33,879 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:33,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:33,880 INFO L82 PathProgramCache]: Analyzing trace with hash 94836804, now seen corresponding path program 1 times [2020-12-22 19:21:33,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:33,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225245284] [2020-12-22 19:21:33,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:34,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:34,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225245284] [2020-12-22 19:21:34,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:34,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 19:21:34,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24180028] [2020-12-22 19:21:34,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:21:34,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:34,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:21:34,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:21:34,053 INFO L87 Difference]: Start difference. First operand 147 states and 155 transitions. Second operand 8 states. [2020-12-22 19:21:34,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:34,426 INFO L93 Difference]: Finished difference Result 201 states and 213 transitions. [2020-12-22 19:21:34,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:21:34,426 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-12-22 19:21:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:34,430 INFO L225 Difference]: With dead ends: 201 [2020-12-22 19:21:34,430 INFO L226 Difference]: Without dead ends: 201 [2020-12-22 19:21:34,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:21:34,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-12-22 19:21:34,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 152. [2020-12-22 19:21:34,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-12-22 19:21:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 160 transitions. [2020-12-22 19:21:34,440 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 160 transitions. Word has length 18 [2020-12-22 19:21:34,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:34,440 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 160 transitions. [2020-12-22 19:21:34,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:21:34,440 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 160 transitions. [2020-12-22 19:21:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 19:21:34,441 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:34,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:34,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 19:21:34,441 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:34,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:34,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1089995469, now seen corresponding path program 1 times [2020-12-22 19:21:34,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:34,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087179245] [2020-12-22 19:21:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:34,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087179245] [2020-12-22 19:21:34,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:34,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 19:21:34,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906080274] [2020-12-22 19:21:34,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:21:34,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:34,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:21:34,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:21:34,544 INFO L87 Difference]: Start difference. First operand 152 states and 160 transitions. Second operand 9 states. [2020-12-22 19:21:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:35,013 INFO L93 Difference]: Finished difference Result 151 states and 159 transitions. [2020-12-22 19:21:35,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:21:35,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-12-22 19:21:35,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:35,017 INFO L225 Difference]: With dead ends: 151 [2020-12-22 19:21:35,017 INFO L226 Difference]: Without dead ends: 151 [2020-12-22 19:21:35,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-22 19:21:35,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-22 19:21:35,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2020-12-22 19:21:35,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-12-22 19:21:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 159 transitions. [2020-12-22 19:21:35,025 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 159 transitions. Word has length 19 [2020-12-22 19:21:35,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:35,025 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 159 transitions. [2020-12-22 19:21:35,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:21:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 159 transitions. [2020-12-22 19:21:35,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 19:21:35,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:35,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:35,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 19:21:35,027 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:35,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1089995468, now seen corresponding path program 1 times [2020-12-22 19:21:35,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:35,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252455360] [2020-12-22 19:21:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:35,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252455360] [2020-12-22 19:21:35,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:35,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 19:21:35,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850603111] [2020-12-22 19:21:35,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:21:35,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:35,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:21:35,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:21:35,205 INFO L87 Difference]: Start difference. First operand 151 states and 159 transitions. Second operand 10 states. [2020-12-22 19:21:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:36,016 INFO L93 Difference]: Finished difference Result 168 states and 177 transitions. [2020-12-22 19:21:36,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 19:21:36,017 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-12-22 19:21:36,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:36,018 INFO L225 Difference]: With dead ends: 168 [2020-12-22 19:21:36,018 INFO L226 Difference]: Without dead ends: 168 [2020-12-22 19:21:36,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2020-12-22 19:21:36,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-22 19:21:36,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 155. [2020-12-22 19:21:36,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-22 19:21:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 167 transitions. [2020-12-22 19:21:36,024 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 167 transitions. Word has length 19 [2020-12-22 19:21:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:36,024 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 167 transitions. [2020-12-22 19:21:36,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:21:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 167 transitions. [2020-12-22 19:21:36,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 19:21:36,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:36,026 INFO L422 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] [2020-12-22 19:21:36,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 19:21:36,026 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:36,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:36,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1403311798, now seen corresponding path program 1 times [2020-12-22 19:21:36,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:36,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481906456] [2020-12-22 19:21:36,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:36,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481906456] [2020-12-22 19:21:36,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:36,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:21:36,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103572811] [2020-12-22 19:21:36,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:21:36,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:36,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:21:36,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:21:36,090 INFO L87 Difference]: Start difference. First operand 155 states and 167 transitions. Second operand 4 states. [2020-12-22 19:21:36,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:36,209 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-12-22 19:21:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:21:36,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-22 19:21:36,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:36,211 INFO L225 Difference]: With dead ends: 156 [2020-12-22 19:21:36,211 INFO L226 Difference]: Without dead ends: 156 [2020-12-22 19:21:36,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:36,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-22 19:21:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 153. [2020-12-22 19:21:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-12-22 19:21:36,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 164 transitions. [2020-12-22 19:21:36,217 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 164 transitions. Word has length 25 [2020-12-22 19:21:36,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:36,217 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 164 transitions. [2020-12-22 19:21:36,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:21:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 164 transitions. [2020-12-22 19:21:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 19:21:36,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:36,219 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:36,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 19:21:36,219 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:36,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:36,220 INFO L82 PathProgramCache]: Analyzing trace with hash 321723501, now seen corresponding path program 1 times [2020-12-22 19:21:36,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:36,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486118923] [2020-12-22 19:21:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:36,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486118923] [2020-12-22 19:21:36,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119749201] [2020-12-22 19:21:36,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:21:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:36,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-22 19:21:36,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:21:36,560 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:21:36,561 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,572 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,578 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:21:36,579 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,584 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,585 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,585 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2020-12-22 19:21:36,616 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-12-22 19:21:36,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,631 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2020-12-22 19:21:36,634 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,639 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,640 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,650 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,655 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-12-22 19:21:36,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,666 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2020-12-22 19:21:36,668 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,673 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,674 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,688 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,691 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,691 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:51, output treesize:33 [2020-12-22 19:21:36,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,762 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-22 19:21:36,769 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,780 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,788 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-22 19:21:36,791 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,798 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,799 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,799 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:33 [2020-12-22 19:21:36,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:36,863 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2020-12-22 19:21:36,866 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,873 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,877 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-22 19:21:36,877 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2020-12-22 19:21:36,879 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,883 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:36,884 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:36,884 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2020-12-22 19:21:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:36,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:21:36,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2020-12-22 19:21:36,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898474182] [2020-12-22 19:21:36,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:21:36,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:36,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:21:36,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:21:36,897 INFO L87 Difference]: Start difference. First operand 153 states and 164 transitions. Second operand 8 states. [2020-12-22 19:21:37,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:37,282 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2020-12-22 19:21:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 19:21:37,283 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-12-22 19:21:37,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:37,284 INFO L225 Difference]: With dead ends: 204 [2020-12-22 19:21:37,284 INFO L226 Difference]: Without dead ends: 204 [2020-12-22 19:21:37,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:21:37,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-12-22 19:21:37,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 160. [2020-12-22 19:21:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-12-22 19:21:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 172 transitions. [2020-12-22 19:21:37,290 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 172 transitions. Word has length 25 [2020-12-22 19:21:37,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:37,291 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 172 transitions. [2020-12-22 19:21:37,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:21:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 172 transitions. [2020-12-22 19:21:37,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 19:21:37,292 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:37,292 INFO L422 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] [2020-12-22 19:21:37,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 19:21:37,508 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:37,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:37,509 INFO L82 PathProgramCache]: Analyzing trace with hash 279705248, now seen corresponding path program 1 times [2020-12-22 19:21:37,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:37,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538302620] [2020-12-22 19:21:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:37,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538302620] [2020-12-22 19:21:37,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:37,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 19:21:37,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335876362] [2020-12-22 19:21:37,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:21:37,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:37,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:21:37,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:37,653 INFO L87 Difference]: Start difference. First operand 160 states and 172 transitions. Second operand 5 states. [2020-12-22 19:21:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:37,795 INFO L93 Difference]: Finished difference Result 163 states and 173 transitions. [2020-12-22 19:21:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:21:37,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-12-22 19:21:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:37,797 INFO L225 Difference]: With dead ends: 163 [2020-12-22 19:21:37,797 INFO L226 Difference]: Without dead ends: 163 [2020-12-22 19:21:37,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:21:37,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-12-22 19:21:37,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 159. [2020-12-22 19:21:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-12-22 19:21:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2020-12-22 19:21:37,805 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 25 [2020-12-22 19:21:37,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:37,805 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2020-12-22 19:21:37,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:21:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2020-12-22 19:21:37,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 19:21:37,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:37,814 INFO L422 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] [2020-12-22 19:21:37,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 19:21:37,816 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:37,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:37,817 INFO L82 PathProgramCache]: Analyzing trace with hash 700013510, now seen corresponding path program 1 times [2020-12-22 19:21:37,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:37,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526724381] [2020-12-22 19:21:37,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:37,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526724381] [2020-12-22 19:21:37,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:37,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:21:37,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882157705] [2020-12-22 19:21:37,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:21:37,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:37,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:21:37,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:37,904 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand 5 states. [2020-12-22 19:21:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:38,126 INFO L93 Difference]: Finished difference Result 233 states and 248 transitions. [2020-12-22 19:21:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:21:38,126 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-22 19:21:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:38,128 INFO L225 Difference]: With dead ends: 233 [2020-12-22 19:21:38,128 INFO L226 Difference]: Without dead ends: 233 [2020-12-22 19:21:38,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:21:38,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-22 19:21:38,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 158. [2020-12-22 19:21:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-22 19:21:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2020-12-22 19:21:38,134 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 26 [2020-12-22 19:21:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:38,135 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2020-12-22 19:21:38,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:21:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2020-12-22 19:21:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 19:21:38,136 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:38,137 INFO L422 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] [2020-12-22 19:21:38,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 19:21:38,137 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:38,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:38,138 INFO L82 PathProgramCache]: Analyzing trace with hash 700013511, now seen corresponding path program 1 times [2020-12-22 19:21:38,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:38,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269852639] [2020-12-22 19:21:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:38,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269852639] [2020-12-22 19:21:38,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:38,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:21:38,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322696046] [2020-12-22 19:21:38,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:21:38,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:38,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:21:38,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:38,251 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand 5 states. [2020-12-22 19:21:38,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:38,542 INFO L93 Difference]: Finished difference Result 259 states and 275 transitions. [2020-12-22 19:21:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:21:38,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-22 19:21:38,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:38,544 INFO L225 Difference]: With dead ends: 259 [2020-12-22 19:21:38,544 INFO L226 Difference]: Without dead ends: 259 [2020-12-22 19:21:38,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:21:38,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-12-22 19:21:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 157. [2020-12-22 19:21:38,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-12-22 19:21:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 167 transitions. [2020-12-22 19:21:38,550 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 167 transitions. Word has length 26 [2020-12-22 19:21:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:38,550 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 167 transitions. [2020-12-22 19:21:38,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:21:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 167 transitions. [2020-12-22 19:21:38,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 19:21:38,551 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:38,551 INFO L422 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] [2020-12-22 19:21:38,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 19:21:38,551 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:38,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:38,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1145877006, now seen corresponding path program 1 times [2020-12-22 19:21:38,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:38,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248084807] [2020-12-22 19:21:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:38,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248084807] [2020-12-22 19:21:38,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:38,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:21:38,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135650947] [2020-12-22 19:21:38,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:21:38,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:38,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:21:38,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:21:38,602 INFO L87 Difference]: Start difference. First operand 157 states and 167 transitions. Second operand 4 states. [2020-12-22 19:21:38,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:38,720 INFO L93 Difference]: Finished difference Result 156 states and 165 transitions. [2020-12-22 19:21:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:21:38,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-12-22 19:21:38,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:38,722 INFO L225 Difference]: With dead ends: 156 [2020-12-22 19:21:38,722 INFO L226 Difference]: Without dead ends: 156 [2020-12-22 19:21:38,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:21:38,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-22 19:21:38,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2020-12-22 19:21:38,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-22 19:21:38,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 164 transitions. [2020-12-22 19:21:38,727 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 164 transitions. Word has length 28 [2020-12-22 19:21:38,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:38,727 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 164 transitions. [2020-12-22 19:21:38,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:21:38,727 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 164 transitions. [2020-12-22 19:21:38,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 19:21:38,728 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:38,728 INFO L422 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] [2020-12-22 19:21:38,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 19:21:38,728 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:38,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:38,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1676045002, now seen corresponding path program 1 times [2020-12-22 19:21:38,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:38,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173333910] [2020-12-22 19:21:38,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:38,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:38,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173333910] [2020-12-22 19:21:38,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:38,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 19:21:38,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694816399] [2020-12-22 19:21:38,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 19:21:38,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:38,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 19:21:38,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:21:38,866 INFO L87 Difference]: Start difference. First operand 155 states and 164 transitions. Second operand 12 states. [2020-12-22 19:21:39,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:39,479 INFO L93 Difference]: Finished difference Result 172 states and 180 transitions. [2020-12-22 19:21:39,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-22 19:21:39,480 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-12-22 19:21:39,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:39,481 INFO L225 Difference]: With dead ends: 172 [2020-12-22 19:21:39,482 INFO L226 Difference]: Without dead ends: 172 [2020-12-22 19:21:39,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2020-12-22 19:21:39,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-22 19:21:39,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 155. [2020-12-22 19:21:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-22 19:21:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 163 transitions. [2020-12-22 19:21:39,487 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 163 transitions. Word has length 30 [2020-12-22 19:21:39,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:39,487 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 163 transitions. [2020-12-22 19:21:39,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 19:21:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 163 transitions. [2020-12-22 19:21:39,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 19:21:39,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:39,488 INFO L422 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] [2020-12-22 19:21:39,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 19:21:39,489 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:39,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:39,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1299331192, now seen corresponding path program 1 times [2020-12-22 19:21:39,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:39,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158464141] [2020-12-22 19:21:39,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:39,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158464141] [2020-12-22 19:21:39,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:39,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 19:21:39,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499120138] [2020-12-22 19:21:39,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:21:39,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:39,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:21:39,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:21:39,581 INFO L87 Difference]: Start difference. First operand 155 states and 163 transitions. Second operand 8 states. [2020-12-22 19:21:39,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:39,929 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2020-12-22 19:21:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:21:39,929 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-12-22 19:21:39,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:39,930 INFO L225 Difference]: With dead ends: 155 [2020-12-22 19:21:39,930 INFO L226 Difference]: Without dead ends: 155 [2020-12-22 19:21:39,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:21:39,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-12-22 19:21:39,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 154. [2020-12-22 19:21:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-22 19:21:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 162 transitions. [2020-12-22 19:21:39,935 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 162 transitions. Word has length 30 [2020-12-22 19:21:39,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:39,935 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 162 transitions. [2020-12-22 19:21:39,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:21:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 162 transitions. [2020-12-22 19:21:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 19:21:39,936 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:39,936 INFO L422 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] [2020-12-22 19:21:39,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 19:21:39,937 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:39,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:39,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1299331191, now seen corresponding path program 1 times [2020-12-22 19:21:39,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:39,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283695661] [2020-12-22 19:21:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:40,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:40,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283695661] [2020-12-22 19:21:40,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:21:40,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 19:21:40,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727321652] [2020-12-22 19:21:40,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:21:40,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:40,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:21:40,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:21:40,053 INFO L87 Difference]: Start difference. First operand 154 states and 162 transitions. Second operand 9 states. [2020-12-22 19:21:40,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:40,538 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2020-12-22 19:21:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:21:40,539 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-12-22 19:21:40,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:40,540 INFO L225 Difference]: With dead ends: 150 [2020-12-22 19:21:40,541 INFO L226 Difference]: Without dead ends: 150 [2020-12-22 19:21:40,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-12-22 19:21:40,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-12-22 19:21:40,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 139. [2020-12-22 19:21:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-12-22 19:21:40,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 146 transitions. [2020-12-22 19:21:40,546 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 146 transitions. Word has length 30 [2020-12-22 19:21:40,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:40,546 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 146 transitions. [2020-12-22 19:21:40,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:21:40,546 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 146 transitions. [2020-12-22 19:21:40,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 19:21:40,547 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:40,547 INFO L422 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] [2020-12-22 19:21:40,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 19:21:40,548 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:40,550 INFO L82 PathProgramCache]: Analyzing trace with hash 556853368, now seen corresponding path program 1 times [2020-12-22 19:21:40,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:40,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366706215] [2020-12-22 19:21:40,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:40,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:40,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366706215] [2020-12-22 19:21:40,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077567191] [2020-12-22 19:21:40,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:21:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:40,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 19:21:40,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:21:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:21:40,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:21:40,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2020-12-22 19:21:40,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193748261] [2020-12-22 19:21:40,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:21:40,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:40,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:21:40,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:21:40,763 INFO L87 Difference]: Start difference. First operand 139 states and 146 transitions. Second operand 3 states. [2020-12-22 19:21:40,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:40,802 INFO L93 Difference]: Finished difference Result 141 states and 148 transitions. [2020-12-22 19:21:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:21:40,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-22 19:21:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:40,804 INFO L225 Difference]: With dead ends: 141 [2020-12-22 19:21:40,804 INFO L226 Difference]: Without dead ends: 141 [2020-12-22 19:21:40,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:21:40,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-12-22 19:21:40,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-12-22 19:21:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-22 19:21:40,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2020-12-22 19:21:40,809 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 31 [2020-12-22 19:21:40,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:40,809 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2020-12-22 19:21:40,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:21:40,809 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2020-12-22 19:21:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:21:40,810 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:40,810 INFO L422 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] [2020-12-22 19:21:41,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:21:41,026 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:41,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1734815685, now seen corresponding path program 1 times [2020-12-22 19:21:41,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:41,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108198817] [2020-12-22 19:21:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:41,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:41,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108198817] [2020-12-22 19:21:41,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23122161] [2020-12-22 19:21:41,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:21:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:41,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 19:21:41,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:21:41,218 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-12-22 19:21:41,219 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,221 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:41,222 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,222 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-12-22 19:21:41,250 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-12-22 19:21:41,251 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,253 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:41,254 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,254 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2020-12-22 19:21:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:21:41,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:21:41,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2020-12-22 19:21:41,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258649406] [2020-12-22 19:21:41,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:21:41,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:41,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:21:41,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:21:41,274 INFO L87 Difference]: Start difference. First operand 141 states and 148 transitions. Second operand 4 states. [2020-12-22 19:21:41,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:41,367 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2020-12-22 19:21:41,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:21:41,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-12-22 19:21:41,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:41,368 INFO L225 Difference]: With dead ends: 150 [2020-12-22 19:21:41,368 INFO L226 Difference]: Without dead ends: 150 [2020-12-22 19:21:41,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:21:41,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-12-22 19:21:41,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2020-12-22 19:21:41,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-12-22 19:21:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 151 transitions. [2020-12-22 19:21:41,373 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 151 transitions. Word has length 33 [2020-12-22 19:21:41,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:41,374 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 151 transitions. [2020-12-22 19:21:41,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:21:41,374 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2020-12-22 19:21:41,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 19:21:41,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:41,375 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:21:41,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-22 19:21:41,589 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:41,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:41,591 INFO L82 PathProgramCache]: Analyzing trace with hash 443489849, now seen corresponding path program 1 times [2020-12-22 19:21:41,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:41,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844354920] [2020-12-22 19:21:41,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:21:41,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844354920] [2020-12-22 19:21:41,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241267575] [2020-12-22 19:21:41,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:21:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:21:41,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-22 19:21:41,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:21:41,823 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:21:41,824 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,828 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:41,832 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 19:21:41,833 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,836 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:41,837 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,837 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2020-12-22 19:21:41,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:41,852 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-22 19:21:41,854 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,861 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:41,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:41,866 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-22 19:21:41,869 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,876 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:41,877 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,877 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:33 [2020-12-22 19:21:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:41,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:41,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:41,924 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-22 19:21:41,929 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,939 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:41,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:41,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:41,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:41,948 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-22 19:21:41,956 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,963 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:41,963 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:41,964 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:33 [2020-12-22 19:21:42,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:21:42,019 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2020-12-22 19:21:42,021 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:42,028 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:42,031 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-22 19:21:42,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2020-12-22 19:21:42,035 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:21:42,038 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:21:42,039 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:21:42,039 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2020-12-22 19:21:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 19:21:42,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:21:42,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 10 [2020-12-22 19:21:42,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405274894] [2020-12-22 19:21:42,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:21:42,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:21:42,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:21:42,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:21:42,060 INFO L87 Difference]: Start difference. First operand 144 states and 151 transitions. Second operand 10 states. [2020-12-22 19:21:42,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:21:42,750 INFO L93 Difference]: Finished difference Result 197 states and 207 transitions. [2020-12-22 19:21:42,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 19:21:42,751 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-12-22 19:21:42,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:21:42,752 INFO L225 Difference]: With dead ends: 197 [2020-12-22 19:21:42,752 INFO L226 Difference]: Without dead ends: 197 [2020-12-22 19:21:42,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2020-12-22 19:21:42,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-12-22 19:21:42,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 155. [2020-12-22 19:21:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-22 19:21:42,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 164 transitions. [2020-12-22 19:21:42,758 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 164 transitions. Word has length 34 [2020-12-22 19:21:42,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:21:42,758 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 164 transitions. [2020-12-22 19:21:42,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:21:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 164 transitions. [2020-12-22 19:21:42,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 19:21:42,759 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:21:42,759 INFO L422 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] [2020-12-22 19:21:42,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:21:42,975 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 19:21:42,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:21:42,976 INFO L82 PathProgramCache]: Analyzing trace with hash 863283081, now seen corresponding path program 1 times [2020-12-22 19:21:42,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:21:42,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949474540] [2020-12-22 19:21:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:21:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 19:21:43,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 19:21:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 19:21:43,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 19:21:43,070 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 19:21:43,071 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 19:21:43,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 19:21:43,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 07:21:43 BoogieIcfgContainer [2020-12-22 19:21:43,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 19:21:43,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 19:21:43,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 19:21:43,153 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 19:21:43,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:21:30" (3/4) ... [2020-12-22 19:21:43,158 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 19:21:43,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 19:21:43,159 INFO L168 Benchmark]: Toolchain (without parser) took 14182.27 ms. Allocated memory was 152.0 MB in the beginning and 274.7 MB in the end (delta: 122.7 MB). Free memory was 126.5 MB in the beginning and 172.2 MB in the end (delta: -45.7 MB). Peak memory consumption was 78.4 MB. Max. memory is 8.0 GB. [2020-12-22 19:21:43,159 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 152.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:21:43,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.79 ms. Allocated memory is still 152.0 MB. Free memory was 126.3 MB in the beginning and 103.0 MB in the end (delta: 23.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:21:43,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.12 ms. Allocated memory is still 152.0 MB. Free memory was 103.0 MB in the beginning and 100.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:21:43,160 INFO L168 Benchmark]: Boogie Preprocessor took 98.05 ms. Allocated memory is still 152.0 MB. Free memory was 100.9 MB in the beginning and 134.5 MB in the end (delta: -33.6 MB). Peak memory consumption was 3.9 MB. Max. memory is 8.0 GB. [2020-12-22 19:21:43,161 INFO L168 Benchmark]: RCFGBuilder took 883.15 ms. Allocated memory is still 152.0 MB. Free memory was 134.5 MB in the beginning and 89.4 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:21:43,161 INFO L168 Benchmark]: TraceAbstraction took 12551.46 ms. Allocated memory was 152.0 MB in the beginning and 274.7 MB in the end (delta: 122.7 MB). Free memory was 88.9 MB in the beginning and 172.2 MB in the end (delta: -83.3 MB). Peak memory consumption was 39.9 MB. Max. memory is 8.0 GB. [2020-12-22 19:21:43,162 INFO L168 Benchmark]: Witness Printer took 5.43 ms. Allocated memory is still 274.7 MB. Free memory is still 172.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:21:43,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 152.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 548.79 ms. Allocated memory is still 152.0 MB. Free memory was 126.3 MB in the beginning and 103.0 MB in the end (delta: 23.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 77.12 ms. Allocated memory is still 152.0 MB. Free memory was 103.0 MB in the beginning and 100.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 98.05 ms. Allocated memory is still 152.0 MB. Free memory was 100.9 MB in the beginning and 134.5 MB in the end (delta: -33.6 MB). Peak memory consumption was 3.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 883.15 ms. Allocated memory is still 152.0 MB. Free memory was 134.5 MB in the beginning and 89.4 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12551.46 ms. Allocated memory was 152.0 MB in the beginning and 274.7 MB in the end (delta: 122.7 MB). Free memory was 88.9 MB in the beginning and 172.2 MB in the end (delta: -83.3 MB). Peak memory consumption was 39.9 MB. Max. memory is 8.0 GB. * Witness Printer took 5.43 ms. Allocated memory is still 274.7 MB. Free memory is still 172.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 996]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 996. Possible FailurePath: [L998] struct TSLL* null = malloc(sizeof(struct TSLL)); [L999] null->next = ((void*)0) [L1000] null->prev = ((void*)0) [L1001] null->colour = BLACK [L1003] struct TSLL* list = malloc(sizeof(struct TSLL)); [L1004] list->next = null [L1005] list->prev = null [L1006] list->colour = BLACK [L1008] struct TSLL* end = list; [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1037] end = null [L1038] end = list [L1041] COND FALSE !(!(null != end)) [L1042] EXPR end->colour [L1042] COND FALSE !(!(BLACK == end->colour)) [L1043] COND TRUE null != end [L1045] EXPR end->colour [L1045] COND FALSE !(RED == end->colour) [L1052] EXPR end->next [L1052] end = end->next [L1043] COND FALSE !(null != end) [L1056] COND TRUE null != list [L1058] EXPR list->colour [L1058] COND FALSE !(RED == list->colour) [L1067] EXPR list->next [L1067] end = list->next [L1068] free(list) [L1068] free(list) [L1068] free(list) [L1069] list = end [L1056] COND FALSE !(null != list) [L1073] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 164 locations, 77 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.3s, OverallIterations: 25, TraceHistogramMax: 2, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2362 SDtfs, 3278 SDslu, 4261 SDs, 0 SdLazy, 6149 SolverSat, 299 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 152 SyntacticMatches, 6 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 24 MinimizatonAttempts, 633 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 648 NumberOfCodeBlocks, 648 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 585 ConstructedInterpolants, 0 QuantifiedInterpolants, 110655 SizeOfPredicates, 16 NumberOfNonLiveVariables, 636 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 28 InterpolantComputations, 22 PerfectInterpolantSequences, 7/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...