/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/locks/test_locks_10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:46:23,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:46:23,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:46:23,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:46:23,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:46:23,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:46:23,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:46:23,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:46:23,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:46:23,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:46:23,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:46:23,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:46:23,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:46:23,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:46:23,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:46:23,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:46:23,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:46:23,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:46:23,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:46:23,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:46:23,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:46:23,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:46:23,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:46:23,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:46:23,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 05:46:23,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:46:23,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:46:23,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:46:23,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:46:23,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:46:23,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:46:23,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:46:23,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:46:23,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:46:23,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:46:23,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:46:23,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:46:23,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:46:23,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:46:23,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:46:23,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:46:23,665 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:46:23,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:46:23,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:46:23,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:46:23,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:46:23,666 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:46:23,666 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:46:23,666 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:46:23,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:46:23,667 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:46:23,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:46:23,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:46:23,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:46:23,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:46:23,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:46:23,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:46:23,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:46:23,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:46:23,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:46:23,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:46:23,669 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:46:24,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:46:24,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:46:24,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:46:24,183 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:46:24,184 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:46:24,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_10.c [2021-01-07 05:46:24,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8d33dab52/ec1d0c65d43341f2a49d3e91e79817a1/FLAG852b83d78 [2021-01-07 05:46:25,063 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:46:25,064 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_10.c [2021-01-07 05:46:25,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8d33dab52/ec1d0c65d43341f2a49d3e91e79817a1/FLAG852b83d78 [2021-01-07 05:46:25,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8d33dab52/ec1d0c65d43341f2a49d3e91e79817a1 [2021-01-07 05:46:25,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:46:25,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:46:25,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:25,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:46:25,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:46:25,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c104752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25, skipping insertion in model container [2021-01-07 05:46:25,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:46:25,444 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~cond~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] [2021-01-07 05:46:25,676 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_10.c[3901,3914] [2021-01-07 05:46:25,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:25,694 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~cond~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] left hand side expression in assignment: lhs: VariableLHS[~lk1~0,] left hand side expression in assignment: lhs: VariableLHS[~lk2~0,] left hand side expression in assignment: lhs: VariableLHS[~lk3~0,] left hand side expression in assignment: lhs: VariableLHS[~lk4~0,] left hand side expression in assignment: lhs: VariableLHS[~lk5~0,] left hand side expression in assignment: lhs: VariableLHS[~lk6~0,] left hand side expression in assignment: lhs: VariableLHS[~lk7~0,] left hand side expression in assignment: lhs: VariableLHS[~lk8~0,] left hand side expression in assignment: lhs: VariableLHS[~lk9~0,] left hand side expression in assignment: lhs: VariableLHS[~lk10~0,] [2021-01-07 05:46:25,724 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_10.c[3901,3914] [2021-01-07 05:46:25,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:25,744 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:46:25,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25 WrapperNode [2021-01-07 05:46:25,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:25,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:25,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:46:25,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:46:25,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:25,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:46:25,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:46:25,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:46:25,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... [2021-01-07 05:46:25,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:46:25,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:46:25,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:46:25,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:46:25,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:46:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:46:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:46:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:46:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:46:26,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:46:26,626 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-01-07 05:46:26,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:26 BoogieIcfgContainer [2021-01-07 05:46:26,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:46:26,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:46:26,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:46:26,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:46:26,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:46:25" (1/3) ... [2021-01-07 05:46:26,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19779d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:26, skipping insertion in model container [2021-01-07 05:46:26,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:25" (2/3) ... [2021-01-07 05:46:26,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19779d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:26, skipping insertion in model container [2021-01-07 05:46:26,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:26" (3/3) ... [2021-01-07 05:46:26,649 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_10.c [2021-01-07 05:46:26,656 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:46:26,662 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-07 05:46:26,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-07 05:46:26,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:46:26,722 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:46:26,722 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:46:26,722 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:46:26,722 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:46:26,722 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:46:26,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:46:26,723 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:46:26,741 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2021-01-07 05:46:26,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-07 05:46:26,749 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:26,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-07 05:46:26,751 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:26,757 INFO L82 PathProgramCache]: Analyzing trace with hash 28703467, now seen corresponding path program 1 times [2021-01-07 05:46:26,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:26,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972347675] [2021-01-07 05:46:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:26,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:26,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972347675] [2021-01-07 05:46:26,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:26,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:26,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340890767] [2021-01-07 05:46:26,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 05:46:26,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:26,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 05:46:26,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:46:26,968 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2021-01-07 05:46:26,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:26,988 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2021-01-07 05:46:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 05:46:26,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-01-07 05:46:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,001 INFO L225 Difference]: With dead ends: 41 [2021-01-07 05:46:27,001 INFO L226 Difference]: Without dead ends: 39 [2021-01-07 05:46:27,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:46:27,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-01-07 05:46:27,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-01-07 05:46:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-01-07 05:46:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 68 transitions. [2021-01-07 05:46:27,046 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 68 transitions. Word has length 5 [2021-01-07 05:46:27,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:27,047 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 68 transitions. [2021-01-07 05:46:27,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 05:46:27,047 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 68 transitions. [2021-01-07 05:46:27,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-07 05:46:27,047 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:27,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-07 05:46:27,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:46:27,048 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:27,049 INFO L82 PathProgramCache]: Analyzing trace with hash 889697963, now seen corresponding path program 1 times [2021-01-07 05:46:27,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:27,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466367947] [2021-01-07 05:46:27,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:27,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:27,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466367947] [2021-01-07 05:46:27,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:27,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:27,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554150169] [2021-01-07 05:46:27,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:27,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:27,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:27,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,108 INFO L87 Difference]: Start difference. First operand 39 states and 68 transitions. Second operand 3 states. [2021-01-07 05:46:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:27,121 INFO L93 Difference]: Finished difference Result 38 states and 67 transitions. [2021-01-07 05:46:27,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:27,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-01-07 05:46:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,123 INFO L225 Difference]: With dead ends: 38 [2021-01-07 05:46:27,123 INFO L226 Difference]: Without dead ends: 36 [2021-01-07 05:46:27,127 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 [2021-01-07 05:46:27,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-01-07 05:46:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-01-07 05:46:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-01-07 05:46:27,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 65 transitions. [2021-01-07 05:46:27,139 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 65 transitions. Word has length 6 [2021-01-07 05:46:27,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:27,140 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 65 transitions. [2021-01-07 05:46:27,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:27,140 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 65 transitions. [2021-01-07 05:46:27,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:46:27,141 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:27,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:27,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:46:27,142 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:27,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:27,143 INFO L82 PathProgramCache]: Analyzing trace with hash 153349273, now seen corresponding path program 1 times [2021-01-07 05:46:27,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:27,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844339714] [2021-01-07 05:46:27,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:27,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844339714] [2021-01-07 05:46:27,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:27,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:27,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894716727] [2021-01-07 05:46:27,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:27,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:27,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:27,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,241 INFO L87 Difference]: Start difference. First operand 36 states and 65 transitions. Second operand 3 states. [2021-01-07 05:46:27,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:27,265 INFO L93 Difference]: Finished difference Result 69 states and 125 transitions. [2021-01-07 05:46:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:27,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-07 05:46:27,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,267 INFO L225 Difference]: With dead ends: 69 [2021-01-07 05:46:27,267 INFO L226 Difference]: Without dead ends: 69 [2021-01-07 05:46:27,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-01-07 05:46:27,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 47. [2021-01-07 05:46:27,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-01-07 05:46:27,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 86 transitions. [2021-01-07 05:46:27,278 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 86 transitions. Word has length 17 [2021-01-07 05:46:27,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:27,278 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 86 transitions. [2021-01-07 05:46:27,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 86 transitions. [2021-01-07 05:46:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:46:27,280 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:27,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:27,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:46:27,280 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:27,281 INFO L82 PathProgramCache]: Analyzing trace with hash -433456741, now seen corresponding path program 1 times [2021-01-07 05:46:27,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:27,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018563266] [2021-01-07 05:46:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:27,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018563266] [2021-01-07 05:46:27,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:27,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:27,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930250799] [2021-01-07 05:46:27,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:27,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:27,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:27,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,344 INFO L87 Difference]: Start difference. First operand 47 states and 86 transitions. Second operand 3 states. [2021-01-07 05:46:27,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:27,381 INFO L93 Difference]: Finished difference Result 69 states and 123 transitions. [2021-01-07 05:46:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:27,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-07 05:46:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,384 INFO L225 Difference]: With dead ends: 69 [2021-01-07 05:46:27,384 INFO L226 Difference]: Without dead ends: 69 [2021-01-07 05:46:27,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-01-07 05:46:27,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-01-07 05:46:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2021-01-07 05:46:27,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 122 transitions. [2021-01-07 05:46:27,400 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 122 transitions. Word has length 17 [2021-01-07 05:46:27,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:27,401 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 122 transitions. [2021-01-07 05:46:27,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:27,401 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 122 transitions. [2021-01-07 05:46:27,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:46:27,402 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:27,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:27,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:46:27,403 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:27,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:27,405 INFO L82 PathProgramCache]: Analyzing trace with hash 459073515, now seen corresponding path program 1 times [2021-01-07 05:46:27,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:27,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454420525] [2021-01-07 05:46:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:27,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454420525] [2021-01-07 05:46:27,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:27,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:27,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136084294] [2021-01-07 05:46:27,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:27,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:27,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:27,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,514 INFO L87 Difference]: Start difference. First operand 67 states and 122 transitions. Second operand 3 states. [2021-01-07 05:46:27,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:27,532 INFO L93 Difference]: Finished difference Result 72 states and 125 transitions. [2021-01-07 05:46:27,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:27,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-01-07 05:46:27,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,534 INFO L225 Difference]: With dead ends: 72 [2021-01-07 05:46:27,534 INFO L226 Difference]: Without dead ends: 72 [2021-01-07 05:46:27,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-01-07 05:46:27,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2021-01-07 05:46:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2021-01-07 05:46:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 124 transitions. [2021-01-07 05:46:27,548 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 124 transitions. Word has length 18 [2021-01-07 05:46:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:27,549 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 124 transitions. [2021-01-07 05:46:27,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 124 transitions. [2021-01-07 05:46:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:46:27,550 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:27,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:27,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 05:46:27,551 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:27,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:27,551 INFO L82 PathProgramCache]: Analyzing trace with hash -552043735, now seen corresponding path program 1 times [2021-01-07 05:46:27,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:27,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983611043] [2021-01-07 05:46:27,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:27,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983611043] [2021-01-07 05:46:27,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:27,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:27,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870685428] [2021-01-07 05:46:27,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:27,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:27,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:27,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,602 INFO L87 Difference]: Start difference. First operand 70 states and 124 transitions. Second operand 3 states. [2021-01-07 05:46:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:27,633 INFO L93 Difference]: Finished difference Result 131 states and 234 transitions. [2021-01-07 05:46:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:27,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-01-07 05:46:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,637 INFO L225 Difference]: With dead ends: 131 [2021-01-07 05:46:27,638 INFO L226 Difference]: Without dead ends: 131 [2021-01-07 05:46:27,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-01-07 05:46:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 93. [2021-01-07 05:46:27,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2021-01-07 05:46:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 165 transitions. [2021-01-07 05:46:27,669 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 165 transitions. Word has length 18 [2021-01-07 05:46:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:27,670 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 165 transitions. [2021-01-07 05:46:27,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:27,670 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 165 transitions. [2021-01-07 05:46:27,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:46:27,671 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:27,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:27,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-07 05:46:27,674 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:27,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:27,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1138849749, now seen corresponding path program 1 times [2021-01-07 05:46:27,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:27,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170741166] [2021-01-07 05:46:27,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:27,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170741166] [2021-01-07 05:46:27,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:27,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:27,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82570298] [2021-01-07 05:46:27,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:27,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:27,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:27,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,746 INFO L87 Difference]: Start difference. First operand 93 states and 165 transitions. Second operand 3 states. [2021-01-07 05:46:27,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:27,766 INFO L93 Difference]: Finished difference Result 133 states and 232 transitions. [2021-01-07 05:46:27,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:27,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-01-07 05:46:27,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,768 INFO L225 Difference]: With dead ends: 133 [2021-01-07 05:46:27,768 INFO L226 Difference]: Without dead ends: 133 [2021-01-07 05:46:27,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-01-07 05:46:27,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2021-01-07 05:46:27,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-01-07 05:46:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 231 transitions. [2021-01-07 05:46:27,781 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 231 transitions. Word has length 18 [2021-01-07 05:46:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:27,782 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 231 transitions. [2021-01-07 05:46:27,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 231 transitions. [2021-01-07 05:46:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-07 05:46:27,783 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:27,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:27,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 05:46:27,784 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:27,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:27,785 INFO L82 PathProgramCache]: Analyzing trace with hash 66727088, now seen corresponding path program 1 times [2021-01-07 05:46:27,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:27,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744076951] [2021-01-07 05:46:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:27,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744076951] [2021-01-07 05:46:27,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:27,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:27,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918963469] [2021-01-07 05:46:27,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:27,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:27,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:27,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,865 INFO L87 Difference]: Start difference. First operand 131 states and 231 transitions. Second operand 3 states. [2021-01-07 05:46:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:27,895 INFO L93 Difference]: Finished difference Result 135 states and 232 transitions. [2021-01-07 05:46:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:27,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-01-07 05:46:27,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,897 INFO L225 Difference]: With dead ends: 135 [2021-01-07 05:46:27,899 INFO L226 Difference]: Without dead ends: 135 [2021-01-07 05:46:27,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-01-07 05:46:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2021-01-07 05:46:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-01-07 05:46:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 231 transitions. [2021-01-07 05:46:27,925 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 231 transitions. Word has length 19 [2021-01-07 05:46:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:27,926 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 231 transitions. [2021-01-07 05:46:27,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:27,926 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 231 transitions. [2021-01-07 05:46:27,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-07 05:46:27,928 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:27,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:27,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-07 05:46:27,929 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:27,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:27,930 INFO L82 PathProgramCache]: Analyzing trace with hash -944390162, now seen corresponding path program 1 times [2021-01-07 05:46:27,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:27,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402072604] [2021-01-07 05:46:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:27,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402072604] [2021-01-07 05:46:27,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:27,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:27,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167578828] [2021-01-07 05:46:27,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:27,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:27,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:27,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,971 INFO L87 Difference]: Start difference. First operand 133 states and 231 transitions. Second operand 3 states. [2021-01-07 05:46:27,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:27,989 INFO L93 Difference]: Finished difference Result 255 states and 436 transitions. [2021-01-07 05:46:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:27,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-01-07 05:46:27,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:27,992 INFO L225 Difference]: With dead ends: 255 [2021-01-07 05:46:27,992 INFO L226 Difference]: Without dead ends: 255 [2021-01-07 05:46:27,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:27,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-01-07 05:46:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2021-01-07 05:46:28,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2021-01-07 05:46:28,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 435 transitions. [2021-01-07 05:46:28,008 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 435 transitions. Word has length 19 [2021-01-07 05:46:28,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,009 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 435 transitions. [2021-01-07 05:46:28,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,009 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 435 transitions. [2021-01-07 05:46:28,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-07 05:46:28,011 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:28,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-07 05:46:28,011 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,012 INFO L82 PathProgramCache]: Analyzing trace with hash -357584148, now seen corresponding path program 1 times [2021-01-07 05:46:28,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654846602] [2021-01-07 05:46:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654846602] [2021-01-07 05:46:28,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988276992] [2021-01-07 05:46:28,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,101 INFO L87 Difference]: Start difference. First operand 253 states and 435 transitions. Second operand 3 states. [2021-01-07 05:46:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,126 INFO L93 Difference]: Finished difference Result 319 states and 552 transitions. [2021-01-07 05:46:28,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-01-07 05:46:28,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,133 INFO L225 Difference]: With dead ends: 319 [2021-01-07 05:46:28,133 INFO L226 Difference]: Without dead ends: 319 [2021-01-07 05:46:28,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-01-07 05:46:28,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 253. [2021-01-07 05:46:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2021-01-07 05:46:28,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 431 transitions. [2021-01-07 05:46:28,155 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 431 transitions. Word has length 19 [2021-01-07 05:46:28,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,155 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 431 transitions. [2021-01-07 05:46:28,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,156 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 431 transitions. [2021-01-07 05:46:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-07 05:46:28,157 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,158 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] [2021-01-07 05:46:28,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-07 05:46:28,158 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,159 INFO L82 PathProgramCache]: Analyzing trace with hash 788890080, now seen corresponding path program 1 times [2021-01-07 05:46:28,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507292293] [2021-01-07 05:46:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507292293] [2021-01-07 05:46:28,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864421753] [2021-01-07 05:46:28,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,192 INFO L87 Difference]: Start difference. First operand 253 states and 431 transitions. Second operand 3 states. [2021-01-07 05:46:28,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,206 INFO L93 Difference]: Finished difference Result 467 states and 800 transitions. [2021-01-07 05:46:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2021-01-07 05:46:28,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,210 INFO L225 Difference]: With dead ends: 467 [2021-01-07 05:46:28,211 INFO L226 Difference]: Without dead ends: 467 [2021-01-07 05:46:28,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-01-07 05:46:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 353. [2021-01-07 05:46:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2021-01-07 05:46:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 591 transitions. [2021-01-07 05:46:28,223 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 591 transitions. Word has length 20 [2021-01-07 05:46:28,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,224 INFO L481 AbstractCegarLoop]: Abstraction has 353 states and 591 transitions. [2021-01-07 05:46:28,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 591 transitions. [2021-01-07 05:46:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-07 05:46:28,226 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,227 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] [2021-01-07 05:46:28,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-07 05:46:28,227 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,228 INFO L82 PathProgramCache]: Analyzing trace with hash 202084066, now seen corresponding path program 1 times [2021-01-07 05:46:28,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184696817] [2021-01-07 05:46:28,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184696817] [2021-01-07 05:46:28,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844871056] [2021-01-07 05:46:28,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,262 INFO L87 Difference]: Start difference. First operand 353 states and 591 transitions. Second operand 3 states. [2021-01-07 05:46:28,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,283 INFO L93 Difference]: Finished difference Result 491 states and 812 transitions. [2021-01-07 05:46:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2021-01-07 05:46:28,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,289 INFO L225 Difference]: With dead ends: 491 [2021-01-07 05:46:28,289 INFO L226 Difference]: Without dead ends: 491 [2021-01-07 05:46:28,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-01-07 05:46:28,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 489. [2021-01-07 05:46:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2021-01-07 05:46:28,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 811 transitions. [2021-01-07 05:46:28,303 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 811 transitions. Word has length 20 [2021-01-07 05:46:28,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,303 INFO L481 AbstractCegarLoop]: Abstraction has 489 states and 811 transitions. [2021-01-07 05:46:28,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,304 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 811 transitions. [2021-01-07 05:46:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-07 05:46:28,306 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,306 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] [2021-01-07 05:46:28,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-07 05:46:28,307 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1313996925, now seen corresponding path program 1 times [2021-01-07 05:46:28,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751193369] [2021-01-07 05:46:28,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751193369] [2021-01-07 05:46:28,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097010933] [2021-01-07 05:46:28,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,370 INFO L87 Difference]: Start difference. First operand 489 states and 811 transitions. Second operand 3 states. [2021-01-07 05:46:28,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,390 INFO L93 Difference]: Finished difference Result 503 states and 820 transitions. [2021-01-07 05:46:28,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-01-07 05:46:28,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,395 INFO L225 Difference]: With dead ends: 503 [2021-01-07 05:46:28,396 INFO L226 Difference]: Without dead ends: 503 [2021-01-07 05:46:28,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-01-07 05:46:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 501. [2021-01-07 05:46:28,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2021-01-07 05:46:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 819 transitions. [2021-01-07 05:46:28,415 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 819 transitions. Word has length 21 [2021-01-07 05:46:28,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,417 INFO L481 AbstractCegarLoop]: Abstraction has 501 states and 819 transitions. [2021-01-07 05:46:28,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,419 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 819 transitions. [2021-01-07 05:46:28,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-07 05:46:28,422 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,422 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] [2021-01-07 05:46:28,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-07 05:46:28,422 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1969853121, now seen corresponding path program 1 times [2021-01-07 05:46:28,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874638410] [2021-01-07 05:46:28,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874638410] [2021-01-07 05:46:28,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220226878] [2021-01-07 05:46:28,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,469 INFO L87 Difference]: Start difference. First operand 501 states and 819 transitions. Second operand 3 states. [2021-01-07 05:46:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,488 INFO L93 Difference]: Finished difference Result 903 states and 1484 transitions. [2021-01-07 05:46:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-01-07 05:46:28,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,495 INFO L225 Difference]: With dead ends: 903 [2021-01-07 05:46:28,495 INFO L226 Difference]: Without dead ends: 903 [2021-01-07 05:46:28,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2021-01-07 05:46:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 709. [2021-01-07 05:46:28,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2021-01-07 05:46:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 1131 transitions. [2021-01-07 05:46:28,517 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 1131 transitions. Word has length 21 [2021-01-07 05:46:28,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,518 INFO L481 AbstractCegarLoop]: Abstraction has 709 states and 1131 transitions. [2021-01-07 05:46:28,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 1131 transitions. [2021-01-07 05:46:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-07 05:46:28,520 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,520 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] [2021-01-07 05:46:28,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-07 05:46:28,521 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1383047107, now seen corresponding path program 1 times [2021-01-07 05:46:28,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866688517] [2021-01-07 05:46:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866688517] [2021-01-07 05:46:28,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799324292] [2021-01-07 05:46:28,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,578 INFO L87 Difference]: Start difference. First operand 709 states and 1131 transitions. Second operand 3 states. [2021-01-07 05:46:28,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,597 INFO L93 Difference]: Finished difference Result 967 states and 1524 transitions. [2021-01-07 05:46:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-01-07 05:46:28,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,603 INFO L225 Difference]: With dead ends: 967 [2021-01-07 05:46:28,604 INFO L226 Difference]: Without dead ends: 967 [2021-01-07 05:46:28,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2021-01-07 05:46:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2021-01-07 05:46:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2021-01-07 05:46:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1523 transitions. [2021-01-07 05:46:28,629 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1523 transitions. Word has length 21 [2021-01-07 05:46:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,629 INFO L481 AbstractCegarLoop]: Abstraction has 965 states and 1523 transitions. [2021-01-07 05:46:28,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1523 transitions. [2021-01-07 05:46:28,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:28,631 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,632 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] [2021-01-07 05:46:28,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-07 05:46:28,632 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,633 INFO L82 PathProgramCache]: Analyzing trace with hash 936119319, now seen corresponding path program 1 times [2021-01-07 05:46:28,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869912659] [2021-01-07 05:46:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869912659] [2021-01-07 05:46:28,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489544614] [2021-01-07 05:46:28,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,677 INFO L87 Difference]: Start difference. First operand 965 states and 1523 transitions. Second operand 3 states. [2021-01-07 05:46:28,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,705 INFO L93 Difference]: Finished difference Result 983 states and 1524 transitions. [2021-01-07 05:46:28,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:28,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,712 INFO L225 Difference]: With dead ends: 983 [2021-01-07 05:46:28,712 INFO L226 Difference]: Without dead ends: 983 [2021-01-07 05:46:28,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2021-01-07 05:46:28,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 981. [2021-01-07 05:46:28,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2021-01-07 05:46:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1523 transitions. [2021-01-07 05:46:28,755 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1523 transitions. Word has length 22 [2021-01-07 05:46:28,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,757 INFO L481 AbstractCegarLoop]: Abstraction has 981 states and 1523 transitions. [2021-01-07 05:46:28,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,757 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1523 transitions. [2021-01-07 05:46:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:28,759 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,759 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] [2021-01-07 05:46:28,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-07 05:46:28,759 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,760 INFO L82 PathProgramCache]: Analyzing trace with hash -74997931, now seen corresponding path program 1 times [2021-01-07 05:46:28,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394891281] [2021-01-07 05:46:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394891281] [2021-01-07 05:46:28,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717839804] [2021-01-07 05:46:28,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,797 INFO L87 Difference]: Start difference. First operand 981 states and 1523 transitions. Second operand 3 states. [2021-01-07 05:46:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,820 INFO L93 Difference]: Finished difference Result 1735 states and 2708 transitions. [2021-01-07 05:46:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,831 INFO L225 Difference]: With dead ends: 1735 [2021-01-07 05:46:28,831 INFO L226 Difference]: Without dead ends: 1735 [2021-01-07 05:46:28,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-01-07 05:46:28,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1413. [2021-01-07 05:46:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1413 states. [2021-01-07 05:46:28,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 2131 transitions. [2021-01-07 05:46:28,874 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 2131 transitions. Word has length 22 [2021-01-07 05:46:28,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:28,875 INFO L481 AbstractCegarLoop]: Abstraction has 1413 states and 2131 transitions. [2021-01-07 05:46:28,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:28,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 2131 transitions. [2021-01-07 05:46:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:28,878 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:28,878 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] [2021-01-07 05:46:28,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-07 05:46:28,879 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:28,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:28,879 INFO L82 PathProgramCache]: Analyzing trace with hash -661803945, now seen corresponding path program 1 times [2021-01-07 05:46:28,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:28,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266945986] [2021-01-07 05:46:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:28,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266945986] [2021-01-07 05:46:28,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:28,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:28,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644236668] [2021-01-07 05:46:28,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:28,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:28,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:28,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,920 INFO L87 Difference]: Start difference. First operand 1413 states and 2131 transitions. Second operand 3 states. [2021-01-07 05:46:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:28,942 INFO L93 Difference]: Finished difference Result 1895 states and 2820 transitions. [2021-01-07 05:46:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:28,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:28,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:28,952 INFO L225 Difference]: With dead ends: 1895 [2021-01-07 05:46:28,953 INFO L226 Difference]: Without dead ends: 1895 [2021-01-07 05:46:28,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2021-01-07 05:46:28,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1893. [2021-01-07 05:46:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2021-01-07 05:46:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2819 transitions. [2021-01-07 05:46:29,007 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2819 transitions. Word has length 22 [2021-01-07 05:46:29,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:29,007 INFO L481 AbstractCegarLoop]: Abstraction has 1893 states and 2819 transitions. [2021-01-07 05:46:29,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:29,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2819 transitions. [2021-01-07 05:46:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-07 05:46:29,010 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:29,010 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] [2021-01-07 05:46:29,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-07 05:46:29,010 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:29,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:29,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1970246488, now seen corresponding path program 1 times [2021-01-07 05:46:29,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:29,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377337780] [2021-01-07 05:46:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:29,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377337780] [2021-01-07 05:46:29,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:29,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:29,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459200982] [2021-01-07 05:46:29,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:29,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:29,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:29,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,054 INFO L87 Difference]: Start difference. First operand 1893 states and 2819 transitions. Second operand 3 states. [2021-01-07 05:46:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:29,093 INFO L93 Difference]: Finished difference Result 1927 states and 2820 transitions. [2021-01-07 05:46:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:29,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-01-07 05:46:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:29,103 INFO L225 Difference]: With dead ends: 1927 [2021-01-07 05:46:29,104 INFO L226 Difference]: Without dead ends: 1927 [2021-01-07 05:46:29,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2021-01-07 05:46:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1925. [2021-01-07 05:46:29,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1925 states. [2021-01-07 05:46:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2819 transitions. [2021-01-07 05:46:29,149 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2819 transitions. Word has length 23 [2021-01-07 05:46:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:29,149 INFO L481 AbstractCegarLoop]: Abstraction has 1925 states and 2819 transitions. [2021-01-07 05:46:29,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:29,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2819 transitions. [2021-01-07 05:46:29,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-07 05:46:29,153 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:29,153 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] [2021-01-07 05:46:29,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-07 05:46:29,154 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:29,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:29,154 INFO L82 PathProgramCache]: Analyzing trace with hash 959129238, now seen corresponding path program 1 times [2021-01-07 05:46:29,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:29,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105679872] [2021-01-07 05:46:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:29,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105679872] [2021-01-07 05:46:29,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:29,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:29,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325306243] [2021-01-07 05:46:29,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:29,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:29,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:29,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,193 INFO L87 Difference]: Start difference. First operand 1925 states and 2819 transitions. Second operand 3 states. [2021-01-07 05:46:29,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:29,221 INFO L93 Difference]: Finished difference Result 3335 states and 4900 transitions. [2021-01-07 05:46:29,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:29,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-01-07 05:46:29,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:29,238 INFO L225 Difference]: With dead ends: 3335 [2021-01-07 05:46:29,238 INFO L226 Difference]: Without dead ends: 3335 [2021-01-07 05:46:29,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2021-01-07 05:46:29,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 2821. [2021-01-07 05:46:29,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2821 states. [2021-01-07 05:46:29,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4003 transitions. [2021-01-07 05:46:29,316 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4003 transitions. Word has length 23 [2021-01-07 05:46:29,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:29,317 INFO L481 AbstractCegarLoop]: Abstraction has 2821 states and 4003 transitions. [2021-01-07 05:46:29,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:29,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4003 transitions. [2021-01-07 05:46:29,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-07 05:46:29,322 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:29,322 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] [2021-01-07 05:46:29,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-07 05:46:29,322 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:29,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:29,323 INFO L82 PathProgramCache]: Analyzing trace with hash 372323224, now seen corresponding path program 1 times [2021-01-07 05:46:29,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:29,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025726132] [2021-01-07 05:46:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:29,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025726132] [2021-01-07 05:46:29,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:29,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:29,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064556411] [2021-01-07 05:46:29,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:29,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:29,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:29,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,360 INFO L87 Difference]: Start difference. First operand 2821 states and 4003 transitions. Second operand 3 states. [2021-01-07 05:46:29,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:29,408 INFO L93 Difference]: Finished difference Result 3719 states and 5188 transitions. [2021-01-07 05:46:29,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:29,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-01-07 05:46:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:29,427 INFO L225 Difference]: With dead ends: 3719 [2021-01-07 05:46:29,427 INFO L226 Difference]: Without dead ends: 3719 [2021-01-07 05:46:29,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2021-01-07 05:46:29,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3717. [2021-01-07 05:46:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3717 states. [2021-01-07 05:46:29,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5187 transitions. [2021-01-07 05:46:29,518 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5187 transitions. Word has length 23 [2021-01-07 05:46:29,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:29,518 INFO L481 AbstractCegarLoop]: Abstraction has 3717 states and 5187 transitions. [2021-01-07 05:46:29,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5187 transitions. [2021-01-07 05:46:29,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-07 05:46:29,523 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:29,523 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] [2021-01-07 05:46:29,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-07 05:46:29,523 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:29,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:29,524 INFO L82 PathProgramCache]: Analyzing trace with hash -331549300, now seen corresponding path program 1 times [2021-01-07 05:46:29,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:29,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004879026] [2021-01-07 05:46:29,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:29,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004879026] [2021-01-07 05:46:29,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:29,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:29,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452028282] [2021-01-07 05:46:29,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:29,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:29,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:29,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,554 INFO L87 Difference]: Start difference. First operand 3717 states and 5187 transitions. Second operand 3 states. [2021-01-07 05:46:29,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:29,586 INFO L93 Difference]: Finished difference Result 3783 states and 5188 transitions. [2021-01-07 05:46:29,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:29,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-01-07 05:46:29,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:29,605 INFO L225 Difference]: With dead ends: 3783 [2021-01-07 05:46:29,606 INFO L226 Difference]: Without dead ends: 3783 [2021-01-07 05:46:29,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3783 states. [2021-01-07 05:46:29,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3783 to 3781. [2021-01-07 05:46:29,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3781 states. [2021-01-07 05:46:29,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 5187 transitions. [2021-01-07 05:46:29,694 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 5187 transitions. Word has length 24 [2021-01-07 05:46:29,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:29,695 INFO L481 AbstractCegarLoop]: Abstraction has 3781 states and 5187 transitions. [2021-01-07 05:46:29,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:29,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 5187 transitions. [2021-01-07 05:46:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-07 05:46:29,702 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:29,702 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] [2021-01-07 05:46:29,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-07 05:46:29,703 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:29,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1342666550, now seen corresponding path program 1 times [2021-01-07 05:46:29,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:29,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553036646] [2021-01-07 05:46:29,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:29,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553036646] [2021-01-07 05:46:29,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:29,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:29,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139536975] [2021-01-07 05:46:29,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:29,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:29,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:29,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,733 INFO L87 Difference]: Start difference. First operand 3781 states and 5187 transitions. Second operand 3 states. [2021-01-07 05:46:29,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:29,777 INFO L93 Difference]: Finished difference Result 6407 states and 8772 transitions. [2021-01-07 05:46:29,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:29,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-01-07 05:46:29,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:29,822 INFO L225 Difference]: With dead ends: 6407 [2021-01-07 05:46:29,823 INFO L226 Difference]: Without dead ends: 6407 [2021-01-07 05:46:29,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:29,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6407 states. [2021-01-07 05:46:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6407 to 5637. [2021-01-07 05:46:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5637 states. [2021-01-07 05:46:29,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5637 states to 5637 states and 7491 transitions. [2021-01-07 05:46:29,982 INFO L78 Accepts]: Start accepts. Automaton has 5637 states and 7491 transitions. Word has length 24 [2021-01-07 05:46:29,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:29,982 INFO L481 AbstractCegarLoop]: Abstraction has 5637 states and 7491 transitions. [2021-01-07 05:46:29,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:29,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5637 states and 7491 transitions. [2021-01-07 05:46:29,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-07 05:46:29,991 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:29,991 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] [2021-01-07 05:46:29,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-07 05:46:29,991 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:29,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:29,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1929472564, now seen corresponding path program 1 times [2021-01-07 05:46:29,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:29,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335675955] [2021-01-07 05:46:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:30,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:30,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335675955] [2021-01-07 05:46:30,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:30,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:30,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526954347] [2021-01-07 05:46:30,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:30,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:30,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:30,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:30,021 INFO L87 Difference]: Start difference. First operand 5637 states and 7491 transitions. Second operand 3 states. [2021-01-07 05:46:30,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:30,076 INFO L93 Difference]: Finished difference Result 7303 states and 9476 transitions. [2021-01-07 05:46:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:30,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-01-07 05:46:30,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:30,094 INFO L225 Difference]: With dead ends: 7303 [2021-01-07 05:46:30,094 INFO L226 Difference]: Without dead ends: 7303 [2021-01-07 05:46:30,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7303 states. [2021-01-07 05:46:30,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7303 to 7301. [2021-01-07 05:46:30,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7301 states. [2021-01-07 05:46:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 9475 transitions. [2021-01-07 05:46:30,289 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 9475 transitions. Word has length 24 [2021-01-07 05:46:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:30,290 INFO L481 AbstractCegarLoop]: Abstraction has 7301 states and 9475 transitions. [2021-01-07 05:46:30,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 9475 transitions. [2021-01-07 05:46:30,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:46:30,298 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:30,299 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] [2021-01-07 05:46:30,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-07 05:46:30,299 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:30,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:30,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1327225645, now seen corresponding path program 1 times [2021-01-07 05:46:30,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:30,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795540086] [2021-01-07 05:46:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:30,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795540086] [2021-01-07 05:46:30,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:30,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:30,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147471738] [2021-01-07 05:46:30,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:30,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:30,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:30,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:30,325 INFO L87 Difference]: Start difference. First operand 7301 states and 9475 transitions. Second operand 3 states. [2021-01-07 05:46:30,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:30,364 INFO L93 Difference]: Finished difference Result 7431 states and 9476 transitions. [2021-01-07 05:46:30,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:30,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-01-07 05:46:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:30,381 INFO L225 Difference]: With dead ends: 7431 [2021-01-07 05:46:30,382 INFO L226 Difference]: Without dead ends: 7431 [2021-01-07 05:46:30,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:30,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7431 states. [2021-01-07 05:46:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7431 to 7429. [2021-01-07 05:46:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7429 states. [2021-01-07 05:46:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7429 states to 7429 states and 9475 transitions. [2021-01-07 05:46:30,524 INFO L78 Accepts]: Start accepts. Automaton has 7429 states and 9475 transitions. Word has length 25 [2021-01-07 05:46:30,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:30,525 INFO L481 AbstractCegarLoop]: Abstraction has 7429 states and 9475 transitions. [2021-01-07 05:46:30,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7429 states and 9475 transitions. [2021-01-07 05:46:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:46:30,535 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:30,536 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] [2021-01-07 05:46:30,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-07 05:46:30,536 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:30,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:30,537 INFO L82 PathProgramCache]: Analyzing trace with hash 316108395, now seen corresponding path program 1 times [2021-01-07 05:46:30,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:30,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096746869] [2021-01-07 05:46:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:30,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096746869] [2021-01-07 05:46:30,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:30,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:30,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535888768] [2021-01-07 05:46:30,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:30,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:30,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:30,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:30,560 INFO L87 Difference]: Start difference. First operand 7429 states and 9475 transitions. Second operand 3 states. [2021-01-07 05:46:30,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:30,698 INFO L93 Difference]: Finished difference Result 12295 states and 15492 transitions. [2021-01-07 05:46:30,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:30,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-01-07 05:46:30,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:30,731 INFO L225 Difference]: With dead ends: 12295 [2021-01-07 05:46:30,731 INFO L226 Difference]: Without dead ends: 12295 [2021-01-07 05:46:30,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:30,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12295 states. [2021-01-07 05:46:30,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12295 to 11269. [2021-01-07 05:46:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11269 states. [2021-01-07 05:46:30,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11269 states to 11269 states and 13955 transitions. [2021-01-07 05:46:30,979 INFO L78 Accepts]: Start accepts. Automaton has 11269 states and 13955 transitions. Word has length 25 [2021-01-07 05:46:30,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:30,979 INFO L481 AbstractCegarLoop]: Abstraction has 11269 states and 13955 transitions. [2021-01-07 05:46:30,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 11269 states and 13955 transitions. [2021-01-07 05:46:30,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:46:30,994 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:30,994 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] [2021-01-07 05:46:30,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-07 05:46:30,995 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:30,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:30,995 INFO L82 PathProgramCache]: Analyzing trace with hash -270697619, now seen corresponding path program 1 times [2021-01-07 05:46:30,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:30,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118992540] [2021-01-07 05:46:30,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:31,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118992540] [2021-01-07 05:46:31,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:31,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:31,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61764180] [2021-01-07 05:46:31,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:31,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:31,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:31,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:31,016 INFO L87 Difference]: Start difference. First operand 11269 states and 13955 transitions. Second operand 3 states. [2021-01-07 05:46:31,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:31,121 INFO L93 Difference]: Finished difference Result 14343 states and 17156 transitions. [2021-01-07 05:46:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:31,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-01-07 05:46:31,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:31,151 INFO L225 Difference]: With dead ends: 14343 [2021-01-07 05:46:31,151 INFO L226 Difference]: Without dead ends: 14343 [2021-01-07 05:46:31,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:31,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14343 states. [2021-01-07 05:46:31,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14343 to 14341. [2021-01-07 05:46:31,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14341 states. [2021-01-07 05:46:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14341 states to 14341 states and 17155 transitions. [2021-01-07 05:46:31,560 INFO L78 Accepts]: Start accepts. Automaton has 14341 states and 17155 transitions. Word has length 25 [2021-01-07 05:46:31,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:31,561 INFO L481 AbstractCegarLoop]: Abstraction has 14341 states and 17155 transitions. [2021-01-07 05:46:31,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:31,561 INFO L276 IsEmpty]: Start isEmpty. Operand 14341 states and 17155 transitions. [2021-01-07 05:46:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-07 05:46:31,578 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:31,578 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] [2021-01-07 05:46:31,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-07 05:46:31,579 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:31,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:31,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1209641729, now seen corresponding path program 1 times [2021-01-07 05:46:31,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:31,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294117908] [2021-01-07 05:46:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:31,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294117908] [2021-01-07 05:46:31,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:31,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:31,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66859049] [2021-01-07 05:46:31,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:31,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:31,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:31,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:31,602 INFO L87 Difference]: Start difference. First operand 14341 states and 17155 transitions. Second operand 3 states. [2021-01-07 05:46:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:31,676 INFO L93 Difference]: Finished difference Result 14599 states and 17156 transitions. [2021-01-07 05:46:31,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:31,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-01-07 05:46:31,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:31,708 INFO L225 Difference]: With dead ends: 14599 [2021-01-07 05:46:31,709 INFO L226 Difference]: Without dead ends: 14599 [2021-01-07 05:46:31,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:31,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2021-01-07 05:46:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 14597. [2021-01-07 05:46:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14597 states. [2021-01-07 05:46:32,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14597 states to 14597 states and 17155 transitions. [2021-01-07 05:46:32,058 INFO L78 Accepts]: Start accepts. Automaton has 14597 states and 17155 transitions. Word has length 26 [2021-01-07 05:46:32,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:32,058 INFO L481 AbstractCegarLoop]: Abstraction has 14597 states and 17155 transitions. [2021-01-07 05:46:32,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:32,058 INFO L276 IsEmpty]: Start isEmpty. Operand 14597 states and 17155 transitions. [2021-01-07 05:46:32,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-07 05:46:32,074 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:32,074 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] [2021-01-07 05:46:32,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-07 05:46:32,074 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:32,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:32,075 INFO L82 PathProgramCache]: Analyzing trace with hash 198524479, now seen corresponding path program 1 times [2021-01-07 05:46:32,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:32,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931563581] [2021-01-07 05:46:32,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:32,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931563581] [2021-01-07 05:46:32,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:32,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:32,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571844851] [2021-01-07 05:46:32,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:32,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:32,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:32,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:32,095 INFO L87 Difference]: Start difference. First operand 14597 states and 17155 transitions. Second operand 3 states. [2021-01-07 05:46:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:32,281 INFO L93 Difference]: Finished difference Result 23557 states and 26883 transitions. [2021-01-07 05:46:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:32,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-01-07 05:46:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:32,336 INFO L225 Difference]: With dead ends: 23557 [2021-01-07 05:46:32,336 INFO L226 Difference]: Without dead ends: 23557 [2021-01-07 05:46:32,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:32,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23557 states. [2021-01-07 05:46:32,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23557 to 22533. [2021-01-07 05:46:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22533 states. [2021-01-07 05:46:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22533 states to 22533 states and 25859 transitions. [2021-01-07 05:46:32,977 INFO L78 Accepts]: Start accepts. Automaton has 22533 states and 25859 transitions. Word has length 26 [2021-01-07 05:46:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:32,977 INFO L481 AbstractCegarLoop]: Abstraction has 22533 states and 25859 transitions. [2021-01-07 05:46:32,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:32,977 INFO L276 IsEmpty]: Start isEmpty. Operand 22533 states and 25859 transitions. [2021-01-07 05:46:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-07 05:46:33,042 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:33,042 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] [2021-01-07 05:46:33,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-07 05:46:33,043 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:33,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:33,043 INFO L82 PathProgramCache]: Analyzing trace with hash -388281535, now seen corresponding path program 1 times [2021-01-07 05:46:33,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:33,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066464145] [2021-01-07 05:46:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:33,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066464145] [2021-01-07 05:46:33,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:33,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:33,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895865904] [2021-01-07 05:46:33,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:33,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:33,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:33,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:33,065 INFO L87 Difference]: Start difference. First operand 22533 states and 25859 transitions. Second operand 3 states. [2021-01-07 05:46:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:33,153 INFO L93 Difference]: Finished difference Result 28163 states and 30722 transitions. [2021-01-07 05:46:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:33,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-01-07 05:46:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:33,154 INFO L225 Difference]: With dead ends: 28163 [2021-01-07 05:46:33,154 INFO L226 Difference]: Without dead ends: 0 [2021-01-07 05:46:33,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:33,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-07 05:46:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-07 05:46:33,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-07 05:46:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-07 05:46:33,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-01-07 05:46:33,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:33,155 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-07 05:46:33,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:33,156 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-07 05:46:33,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-07 05:46:33,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-07 05:46:33,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:46:33 BoogieIcfgContainer [2021-01-07 05:46:33,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:46:33,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:46:33,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:46:33,163 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:46:33,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:26" (3/4) ... [2021-01-07 05:46:33,167 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-07 05:46:33,182 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-01-07 05:46:33,182 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-07 05:46:33,183 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-01-07 05:46:33,183 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-07 05:46:33,236 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/locks/test_locks_10.c-witness.graphml [2021-01-07 05:46:33,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:46:33,238 INFO L168 Benchmark]: Toolchain (without parser) took 7848.18 ms. Allocated memory was 151.0 MB in the beginning and 520.1 MB in the end (delta: 369.1 MB). Free memory was 126.3 MB in the beginning and 286.8 MB in the end (delta: -160.5 MB). Peak memory consumption was 209.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:33,239 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:46:33,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.54 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 115.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:33,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.34 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:33,240 INFO L168 Benchmark]: Boogie Preprocessor took 30.20 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 112.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:33,241 INFO L168 Benchmark]: RCFGBuilder took 800.19 ms. Allocated memory is still 151.0 MB. Free memory was 112.6 MB in the beginning and 125.4 MB in the end (delta: -12.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:33,241 INFO L168 Benchmark]: TraceAbstraction took 6527.55 ms. Allocated memory was 151.0 MB in the beginning and 520.1 MB in the end (delta: 369.1 MB). Free memory was 124.9 MB in the beginning and 290.5 MB in the end (delta: -165.6 MB). Peak memory consumption was 205.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:33,241 INFO L168 Benchmark]: Witness Printer took 73.75 ms. Allocated memory is still 520.1 MB. Free memory was 290.5 MB in the beginning and 286.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:33,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 353.54 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 115.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.34 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.20 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 112.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 800.19 ms. Allocated memory is still 151.0 MB. Free memory was 112.6 MB in the beginning and 125.4 MB in the end (delta: -12.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6527.55 ms. Allocated memory was 151.0 MB in the beginning and 520.1 MB in the end (delta: 369.1 MB). Free memory was 124.9 MB in the beginning and 290.5 MB in the end (delta: -165.6 MB). Peak memory consumption was 205.1 MB. Max. memory is 8.0 GB. * Witness Printer took 73.75 ms. Allocated memory is still 520.1 MB. Free memory was 290.5 MB in the beginning and 286.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 163]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 30, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2433 SDtfs, 1207 SDslu, 1529 SDs, 0 SdLazy, 150 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22533occurred in iteration=29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 30 MinimizatonAttempts, 4124 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 619 NumberOfCodeBlocks, 619 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 589 ConstructedInterpolants, 0 QuantifiedInterpolants, 26029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 0/0 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 proved your program to be correct! Received shutdown request...