/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_13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:46:31,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:46:31,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:46:31,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:46:31,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:46:31,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:46:31,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:46:31,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:46:31,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:46:31,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:46:31,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:46:31,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:46:31,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:46:31,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:46:31,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:46:31,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:46:31,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:46:31,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:46:31,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:46:31,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:46:31,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:46:31,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:46:31,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:46:31,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:46:31,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 05:46:31,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 05:46:31,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 05:46:31,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 05:46:31,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 05:46:31,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 05:46:31,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:46:31,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:46:31,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:46:31,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:46:31,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:46:31,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:46:31,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:46:31,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:46:31,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:46:31,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:46:31,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:46:31,802 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 05:46:31,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:46:31,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:46:31,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:46:31,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:46:31,832 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:46:31,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:46:31,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:46:31,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:46:31,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:46:31,834 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:46:31,834 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:46:31,835 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:46:31,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:46:31,835 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:46:31,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:46:31,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:46:31,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:46:31,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:46:31,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:46:31,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:46:31,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:46:31,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:46:31,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:46:31,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:46:31,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:46:32,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:46:32,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:46:32,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:46:32,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:46:32,299 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:46:32,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_13.c [2021-01-07 05:46:32,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/cfdda49bb/5ba07fbd70984e2d8a51f37f9c779cef/FLAGe0002fe9f [2021-01-07 05:46:33,128 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:46:33,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/locks/test_locks_13.c [2021-01-07 05:46:33,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/cfdda49bb/5ba07fbd70984e2d8a51f37f9c779cef/FLAGe0002fe9f [2021-01-07 05:46:33,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/cfdda49bb/5ba07fbd70984e2d8a51f37f9c779cef [2021-01-07 05:46:33,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:46:33,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:46:33,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:33,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:46:33,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:46:33,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16de1bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33, skipping insertion in model container [2021-01-07 05:46:33,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:46:33,523 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[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] 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[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] 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[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] [2021-01-07 05:46:33,713 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_13.c[4936,4949] [2021-01-07 05:46:33,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:33,730 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[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] 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[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] 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[~lk11~0,] left hand side expression in assignment: lhs: VariableLHS[~lk12~0,] left hand side expression in assignment: lhs: VariableLHS[~lk13~0,] [2021-01-07 05:46:33,764 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_13.c[4936,4949] [2021-01-07 05:46:33,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:33,785 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:46:33,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33 WrapperNode [2021-01-07 05:46:33,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:33,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:33,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:46:33,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:46:33,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:33,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:46:33,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:46:33,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:46:33,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (1/1) ... [2021-01-07 05:46:33,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:46:33,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:46:33,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:46:33,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:46:33,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (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 05:46:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:46:34,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:46:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:46:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:46:34,468 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:46:34,468 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-01-07 05:46:34,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:34 BoogieIcfgContainer [2021-01-07 05:46:34,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:46:34,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:46:34,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:46:34,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:46:34,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:46:33" (1/3) ... [2021-01-07 05:46:34,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f862fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:34, skipping insertion in model container [2021-01-07 05:46:34,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:33" (2/3) ... [2021-01-07 05:46:34,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f862fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:34, skipping insertion in model container [2021-01-07 05:46:34,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:34" (3/3) ... [2021-01-07 05:46:34,492 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_13.c [2021-01-07 05:46:34,511 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:46:34,522 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-07 05:46:34,574 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-07 05:46:34,614 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:46:34,614 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:46:34,614 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:46:34,615 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:46:34,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:46:34,615 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:46:34,615 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:46:34,615 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:46:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2021-01-07 05:46:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-07 05:46:34,641 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:34,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-07 05:46:34,642 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:34,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:34,649 INFO L82 PathProgramCache]: Analyzing trace with hash 28705099, now seen corresponding path program 1 times [2021-01-07 05:46:34,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:34,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400850478] [2021-01-07 05:46:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:34,901 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 05:46:34,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400850478] [2021-01-07 05:46:34,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:34,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:34,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340312282] [2021-01-07 05:46:34,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 05:46:34,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:34,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 05:46:34,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:46:34,937 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2021-01-07 05:46:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:34,964 INFO L93 Difference]: Finished difference Result 50 states and 88 transitions. [2021-01-07 05:46:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 05:46:34,965 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-01-07 05:46:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:34,977 INFO L225 Difference]: With dead ends: 50 [2021-01-07 05:46:34,977 INFO L226 Difference]: Without dead ends: 48 [2021-01-07 05:46:34,979 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 05:46:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-01-07 05:46:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-01-07 05:46:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-01-07 05:46:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 86 transitions. [2021-01-07 05:46:35,051 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 86 transitions. Word has length 5 [2021-01-07 05:46:35,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:35,051 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 86 transitions. [2021-01-07 05:46:35,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 05:46:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 86 transitions. [2021-01-07 05:46:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-07 05:46:35,052 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:35,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-07 05:46:35,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:46:35,054 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:35,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:35,057 INFO L82 PathProgramCache]: Analyzing trace with hash 889699595, now seen corresponding path program 1 times [2021-01-07 05:46:35,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:35,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644488809] [2021-01-07 05:46:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:35,187 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 05:46:35,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644488809] [2021-01-07 05:46:35,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:35,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:35,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985097603] [2021-01-07 05:46:35,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:35,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:35,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:35,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:35,197 INFO L87 Difference]: Start difference. First operand 48 states and 86 transitions. Second operand 3 states. [2021-01-07 05:46:35,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:35,232 INFO L93 Difference]: Finished difference Result 47 states and 85 transitions. [2021-01-07 05:46:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:35,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-01-07 05:46:35,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:35,236 INFO L225 Difference]: With dead ends: 47 [2021-01-07 05:46:35,236 INFO L226 Difference]: Without dead ends: 45 [2021-01-07 05:46:35,238 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 05:46:35,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-01-07 05:46:35,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-01-07 05:46:35,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-01-07 05:46:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 83 transitions. [2021-01-07 05:46:35,256 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 83 transitions. Word has length 6 [2021-01-07 05:46:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:35,257 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 83 transitions. [2021-01-07 05:46:35,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 83 transitions. [2021-01-07 05:46:35,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-07 05:46:35,263 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:35,264 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 05:46:35,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:46:35,265 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:35,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:35,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1359894467, now seen corresponding path program 1 times [2021-01-07 05:46:35,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:35,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868651247] [2021-01-07 05:46:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:35,399 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 05:46:35,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868651247] [2021-01-07 05:46:35,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:35,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:35,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992376095] [2021-01-07 05:46:35,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:35,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:35,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:35,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:35,406 INFO L87 Difference]: Start difference. First operand 45 states and 83 transitions. Second operand 3 states. [2021-01-07 05:46:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:35,455 INFO L93 Difference]: Finished difference Result 87 states and 161 transitions. [2021-01-07 05:46:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:35,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2021-01-07 05:46:35,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:35,457 INFO L225 Difference]: With dead ends: 87 [2021-01-07 05:46:35,458 INFO L226 Difference]: Without dead ends: 87 [2021-01-07 05:46:35,458 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 05:46:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-01-07 05:46:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 59. [2021-01-07 05:46:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-01-07 05:46:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 110 transitions. [2021-01-07 05:46:35,480 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 110 transitions. Word has length 20 [2021-01-07 05:46:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:35,480 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 110 transitions. [2021-01-07 05:46:35,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:35,486 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 110 transitions. [2021-01-07 05:46:35,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-07 05:46:35,487 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:35,487 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 05:46:35,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:46:35,488 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:35,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1914004475, now seen corresponding path program 1 times [2021-01-07 05:46:35,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:35,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293191836] [2021-01-07 05:46:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:35,578 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 05:46:35,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293191836] [2021-01-07 05:46:35,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:35,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:35,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144676352] [2021-01-07 05:46:35,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:35,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:35,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:35,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:35,581 INFO L87 Difference]: Start difference. First operand 59 states and 110 transitions. Second operand 3 states. [2021-01-07 05:46:35,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:35,604 INFO L93 Difference]: Finished difference Result 87 states and 159 transitions. [2021-01-07 05:46:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:35,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2021-01-07 05:46:35,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:35,607 INFO L225 Difference]: With dead ends: 87 [2021-01-07 05:46:35,607 INFO L226 Difference]: Without dead ends: 87 [2021-01-07 05:46:35,608 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 05:46:35,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-01-07 05:46:35,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2021-01-07 05:46:35,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-01-07 05:46:35,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 158 transitions. [2021-01-07 05:46:35,626 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 158 transitions. Word has length 20 [2021-01-07 05:46:35,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:35,626 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 158 transitions. [2021-01-07 05:46:35,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:35,626 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 158 transitions. [2021-01-07 05:46:35,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-07 05:46:35,630 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:35,630 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 05:46:35,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:46:35,630 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:35,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:35,632 INFO L82 PathProgramCache]: Analyzing trace with hash 793156859, now seen corresponding path program 1 times [2021-01-07 05:46:35,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:35,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382417753] [2021-01-07 05:46:35,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:35,726 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 05:46:35,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382417753] [2021-01-07 05:46:35,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:35,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:35,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939561018] [2021-01-07 05:46:35,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:35,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:35,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:35,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:35,735 INFO L87 Difference]: Start difference. First operand 85 states and 158 transitions. Second operand 3 states. [2021-01-07 05:46:35,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:35,766 INFO L93 Difference]: Finished difference Result 90 states and 161 transitions. [2021-01-07 05:46:35,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:35,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-01-07 05:46:35,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:35,768 INFO L225 Difference]: With dead ends: 90 [2021-01-07 05:46:35,768 INFO L226 Difference]: Without dead ends: 90 [2021-01-07 05:46:35,769 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 05:46:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-01-07 05:46:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2021-01-07 05:46:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-01-07 05:46:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 160 transitions. [2021-01-07 05:46:35,788 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 160 transitions. Word has length 21 [2021-01-07 05:46:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:35,789 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 160 transitions. [2021-01-07 05:46:35,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:35,793 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 160 transitions. [2021-01-07 05:46:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-07 05:46:35,794 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:35,794 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 05:46:35,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 05:46:35,798 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:35,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:35,799 INFO L82 PathProgramCache]: Analyzing trace with hash -795191043, now seen corresponding path program 1 times [2021-01-07 05:46:35,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:35,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211135082] [2021-01-07 05:46:35,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:35,843 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 05:46:35,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211135082] [2021-01-07 05:46:35,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:35,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:35,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708452234] [2021-01-07 05:46:35,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:35,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:35,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:35,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:35,846 INFO L87 Difference]: Start difference. First operand 88 states and 160 transitions. Second operand 3 states. [2021-01-07 05:46:35,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:35,864 INFO L93 Difference]: Finished difference Result 167 states and 306 transitions. [2021-01-07 05:46:35,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:35,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-01-07 05:46:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:35,867 INFO L225 Difference]: With dead ends: 167 [2021-01-07 05:46:35,868 INFO L226 Difference]: Without dead ends: 167 [2021-01-07 05:46:35,868 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 05:46:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-01-07 05:46:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 117. [2021-01-07 05:46:35,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2021-01-07 05:46:35,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 213 transitions. [2021-01-07 05:46:35,878 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 213 transitions. Word has length 21 [2021-01-07 05:46:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:35,878 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 213 transitions. [2021-01-07 05:46:35,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 213 transitions. [2021-01-07 05:46:35,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-07 05:46:35,880 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:35,880 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 05:46:35,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-07 05:46:35,881 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:35,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:35,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1816259397, now seen corresponding path program 1 times [2021-01-07 05:46:35,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:35,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475465345] [2021-01-07 05:46:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:35,916 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 05:46:35,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475465345] [2021-01-07 05:46:35,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:35,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:35,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222458739] [2021-01-07 05:46:35,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:35,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:35,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:35,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:35,919 INFO L87 Difference]: Start difference. First operand 117 states and 213 transitions. Second operand 3 states. [2021-01-07 05:46:35,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:35,936 INFO L93 Difference]: Finished difference Result 169 states and 304 transitions. [2021-01-07 05:46:35,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:35,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-01-07 05:46:35,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:35,939 INFO L225 Difference]: With dead ends: 169 [2021-01-07 05:46:35,939 INFO L226 Difference]: Without dead ends: 169 [2021-01-07 05:46:35,940 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 05:46:35,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-01-07 05:46:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2021-01-07 05:46:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2021-01-07 05:46:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 303 transitions. [2021-01-07 05:46:35,955 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 303 transitions. Word has length 21 [2021-01-07 05:46:35,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:35,955 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 303 transitions. [2021-01-07 05:46:35,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 303 transitions. [2021-01-07 05:46:35,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:35,958 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:35,958 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 05:46:35,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 05:46:35,959 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:35,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:35,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1119094160, now seen corresponding path program 1 times [2021-01-07 05:46:35,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:35,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860915396] [2021-01-07 05:46:35,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,030 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 05:46:36,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860915396] [2021-01-07 05:46:36,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241736483] [2021-01-07 05:46:36,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,036 INFO L87 Difference]: Start difference. First operand 167 states and 303 transitions. Second operand 3 states. [2021-01-07 05:46:36,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,057 INFO L93 Difference]: Finished difference Result 171 states and 304 transitions. [2021-01-07 05:46:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:36,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,060 INFO L225 Difference]: With dead ends: 171 [2021-01-07 05:46:36,060 INFO L226 Difference]: Without dead ends: 171 [2021-01-07 05:46:36,061 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 05:46:36,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-01-07 05:46:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2021-01-07 05:46:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-01-07 05:46:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 303 transitions. [2021-01-07 05:46:36,082 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 303 transitions. Word has length 22 [2021-01-07 05:46:36,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,084 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 303 transitions. [2021-01-07 05:46:36,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,085 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 303 transitions. [2021-01-07 05:46:36,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:36,086 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,086 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 05:46:36,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-07 05:46:36,087 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,092 INFO L82 PathProgramCache]: Analyzing trace with hash -469253742, now seen corresponding path program 1 times [2021-01-07 05:46:36,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328543821] [2021-01-07 05:46:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,134 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 05:46:36,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328543821] [2021-01-07 05:46:36,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566711743] [2021-01-07 05:46:36,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,137 INFO L87 Difference]: Start difference. First operand 169 states and 303 transitions. Second operand 3 states. [2021-01-07 05:46:36,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,153 INFO L93 Difference]: Finished difference Result 327 states and 580 transitions. [2021-01-07 05:46:36,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,155 INFO L225 Difference]: With dead ends: 327 [2021-01-07 05:46:36,156 INFO L226 Difference]: Without dead ends: 327 [2021-01-07 05:46:36,156 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 05:46:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-01-07 05:46:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2021-01-07 05:46:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2021-01-07 05:46:36,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 579 transitions. [2021-01-07 05:46:36,165 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 579 transitions. Word has length 22 [2021-01-07 05:46:36,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,165 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 579 transitions. [2021-01-07 05:46:36,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 579 transitions. [2021-01-07 05:46:36,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:46:36,167 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,168 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 05:46:36,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-07 05:46:36,168 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,169 INFO L82 PathProgramCache]: Analyzing trace with hash 551814612, now seen corresponding path program 1 times [2021-01-07 05:46:36,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565441937] [2021-01-07 05:46:36,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,194 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 05:46:36,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565441937] [2021-01-07 05:46:36,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571920817] [2021-01-07 05:46:36,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,197 INFO L87 Difference]: Start difference. First operand 325 states and 579 transitions. Second operand 3 states. [2021-01-07 05:46:36,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,209 INFO L93 Difference]: Finished difference Result 415 states and 744 transitions. [2021-01-07 05:46:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-07 05:46:36,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,212 INFO L225 Difference]: With dead ends: 415 [2021-01-07 05:46:36,213 INFO L226 Difference]: Without dead ends: 415 [2021-01-07 05:46:36,213 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 05:46:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-01-07 05:46:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 325. [2021-01-07 05:46:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2021-01-07 05:46:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 575 transitions. [2021-01-07 05:46:36,222 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 575 transitions. Word has length 22 [2021-01-07 05:46:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,222 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 575 transitions. [2021-01-07 05:46:36,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 575 transitions. [2021-01-07 05:46:36,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-07 05:46:36,224 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,224 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 05:46:36,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-07 05:46:36,225 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1661751056, now seen corresponding path program 1 times [2021-01-07 05:46:36,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126729967] [2021-01-07 05:46:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,250 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 05:46:36,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126729967] [2021-01-07 05:46:36,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721166691] [2021-01-07 05:46:36,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,253 INFO L87 Difference]: Start difference. First operand 325 states and 575 transitions. Second operand 3 states. [2021-01-07 05:46:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,267 INFO L93 Difference]: Finished difference Result 611 states and 1088 transitions. [2021-01-07 05:46:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-01-07 05:46:36,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,272 INFO L225 Difference]: With dead ends: 611 [2021-01-07 05:46:36,272 INFO L226 Difference]: Without dead ends: 611 [2021-01-07 05:46:36,272 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 05:46:36,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2021-01-07 05:46:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 449. [2021-01-07 05:46:36,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2021-01-07 05:46:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 783 transitions. [2021-01-07 05:46:36,285 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 783 transitions. Word has length 23 [2021-01-07 05:46:36,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,285 INFO L481 AbstractCegarLoop]: Abstraction has 449 states and 783 transitions. [2021-01-07 05:46:36,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 783 transitions. [2021-01-07 05:46:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-07 05:46:36,287 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,287 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 05:46:36,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-07 05:46:36,288 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1612147886, now seen corresponding path program 1 times [2021-01-07 05:46:36,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475927703] [2021-01-07 05:46:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,312 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 05:46:36,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475927703] [2021-01-07 05:46:36,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915638299] [2021-01-07 05:46:36,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,315 INFO L87 Difference]: Start difference. First operand 449 states and 783 transitions. Second operand 3 states. [2021-01-07 05:46:36,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,329 INFO L93 Difference]: Finished difference Result 635 states and 1100 transitions. [2021-01-07 05:46:36,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-01-07 05:46:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,335 INFO L225 Difference]: With dead ends: 635 [2021-01-07 05:46:36,335 INFO L226 Difference]: Without dead ends: 635 [2021-01-07 05:46:36,335 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 05:46:36,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2021-01-07 05:46:36,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 633. [2021-01-07 05:46:36,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2021-01-07 05:46:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1099 transitions. [2021-01-07 05:46:36,352 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1099 transitions. Word has length 23 [2021-01-07 05:46:36,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,352 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 1099 transitions. [2021-01-07 05:46:36,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,352 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1099 transitions. [2021-01-07 05:46:36,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-07 05:46:36,354 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,354 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 05:46:36,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-07 05:46:36,355 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,356 INFO L82 PathProgramCache]: Analyzing trace with hash 25538215, now seen corresponding path program 1 times [2021-01-07 05:46:36,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686770428] [2021-01-07 05:46:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,402 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 05:46:36,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686770428] [2021-01-07 05:46:36,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876767200] [2021-01-07 05:46:36,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,405 INFO L87 Difference]: Start difference. First operand 633 states and 1099 transitions. Second operand 3 states. [2021-01-07 05:46:36,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,422 INFO L93 Difference]: Finished difference Result 647 states and 1108 transitions. [2021-01-07 05:46:36,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-01-07 05:46:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,426 INFO L225 Difference]: With dead ends: 647 [2021-01-07 05:46:36,426 INFO L226 Difference]: Without dead ends: 647 [2021-01-07 05:46:36,432 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 05:46:36,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2021-01-07 05:46:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2021-01-07 05:46:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2021-01-07 05:46:36,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1107 transitions. [2021-01-07 05:46:36,450 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1107 transitions. Word has length 24 [2021-01-07 05:46:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,451 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 1107 transitions. [2021-01-07 05:46:36,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1107 transitions. [2021-01-07 05:46:36,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-07 05:46:36,454 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,454 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 05:46:36,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-07 05:46:36,455 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1562809687, now seen corresponding path program 1 times [2021-01-07 05:46:36,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659769306] [2021-01-07 05:46:36,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,500 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 05:46:36,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659769306] [2021-01-07 05:46:36,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165487148] [2021-01-07 05:46:36,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,504 INFO L87 Difference]: Start difference. First operand 645 states and 1107 transitions. Second operand 3 states. [2021-01-07 05:46:36,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,527 INFO L93 Difference]: Finished difference Result 1191 states and 2060 transitions. [2021-01-07 05:46:36,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-01-07 05:46:36,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,535 INFO L225 Difference]: With dead ends: 1191 [2021-01-07 05:46:36,535 INFO L226 Difference]: Without dead ends: 1191 [2021-01-07 05:46:36,536 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 05:46:36,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2021-01-07 05:46:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 901. [2021-01-07 05:46:36,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 901 states. [2021-01-07 05:46:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1515 transitions. [2021-01-07 05:46:36,559 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1515 transitions. Word has length 24 [2021-01-07 05:46:36,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,561 INFO L481 AbstractCegarLoop]: Abstraction has 901 states and 1515 transitions. [2021-01-07 05:46:36,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,562 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1515 transitions. [2021-01-07 05:46:36,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-07 05:46:36,563 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,563 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 05:46:36,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-07 05:46:36,564 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1711089255, now seen corresponding path program 1 times [2021-01-07 05:46:36,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922897590] [2021-01-07 05:46:36,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,597 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 05:46:36,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922897590] [2021-01-07 05:46:36,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15313874] [2021-01-07 05:46:36,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,600 INFO L87 Difference]: Start difference. First operand 901 states and 1515 transitions. Second operand 3 states. [2021-01-07 05:46:36,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,625 INFO L93 Difference]: Finished difference Result 1255 states and 2100 transitions. [2021-01-07 05:46:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-01-07 05:46:36,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,632 INFO L225 Difference]: With dead ends: 1255 [2021-01-07 05:46:36,632 INFO L226 Difference]: Without dead ends: 1255 [2021-01-07 05:46:36,635 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 05:46:36,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-01-07 05:46:36,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1253. [2021-01-07 05:46:36,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2021-01-07 05:46:36,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2099 transitions. [2021-01-07 05:46:36,687 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2099 transitions. Word has length 24 [2021-01-07 05:46:36,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,687 INFO L481 AbstractCegarLoop]: Abstraction has 1253 states and 2099 transitions. [2021-01-07 05:46:36,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2099 transitions. [2021-01-07 05:46:36,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:46:36,689 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,690 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 05:46:36,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-07 05:46:36,690 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1202246301, now seen corresponding path program 1 times [2021-01-07 05:46:36,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050404562] [2021-01-07 05:46:36,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,716 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 05:46:36,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050404562] [2021-01-07 05:46:36,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65220293] [2021-01-07 05:46:36,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,719 INFO L87 Difference]: Start difference. First operand 1253 states and 2099 transitions. Second operand 3 states. [2021-01-07 05:46:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,738 INFO L93 Difference]: Finished difference Result 1271 states and 2100 transitions. [2021-01-07 05:46:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-01-07 05:46:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,745 INFO L225 Difference]: With dead ends: 1271 [2021-01-07 05:46:36,745 INFO L226 Difference]: Without dead ends: 1271 [2021-01-07 05:46:36,746 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 05:46:36,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2021-01-07 05:46:36,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1269. [2021-01-07 05:46:36,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1269 states. [2021-01-07 05:46:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2099 transitions. [2021-01-07 05:46:36,782 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2099 transitions. Word has length 25 [2021-01-07 05:46:36,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,782 INFO L481 AbstractCegarLoop]: Abstraction has 1269 states and 2099 transitions. [2021-01-07 05:46:36,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2099 transitions. [2021-01-07 05:46:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:46:36,784 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,785 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 05:46:36,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-07 05:46:36,785 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1504373093, now seen corresponding path program 1 times [2021-01-07 05:46:36,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687894334] [2021-01-07 05:46:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,807 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 05:46:36,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687894334] [2021-01-07 05:46:36,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896419493] [2021-01-07 05:46:36,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,810 INFO L87 Difference]: Start difference. First operand 1269 states and 2099 transitions. Second operand 3 states. [2021-01-07 05:46:36,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,834 INFO L93 Difference]: Finished difference Result 2311 states and 3860 transitions. [2021-01-07 05:46:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-01-07 05:46:36,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,846 INFO L225 Difference]: With dead ends: 2311 [2021-01-07 05:46:36,846 INFO L226 Difference]: Without dead ends: 2311 [2021-01-07 05:46:36,847 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 05:46:36,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2021-01-07 05:46:36,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 1797. [2021-01-07 05:46:36,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2021-01-07 05:46:36,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2899 transitions. [2021-01-07 05:46:36,896 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2899 transitions. Word has length 25 [2021-01-07 05:46:36,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:36,896 INFO L481 AbstractCegarLoop]: Abstraction has 1797 states and 2899 transitions. [2021-01-07 05:46:36,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:36,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2899 transitions. [2021-01-07 05:46:36,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:46:36,899 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:36,899 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 05:46:36,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-07 05:46:36,900 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:36,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:36,900 INFO L82 PathProgramCache]: Analyzing trace with hash 483304739, now seen corresponding path program 1 times [2021-01-07 05:46:36,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:36,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350691210] [2021-01-07 05:46:36,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:36,922 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 05:46:36,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350691210] [2021-01-07 05:46:36,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:36,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:36,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364394342] [2021-01-07 05:46:36,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:36,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:36,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:36,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:36,925 INFO L87 Difference]: Start difference. First operand 1797 states and 2899 transitions. Second operand 3 states. [2021-01-07 05:46:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:36,947 INFO L93 Difference]: Finished difference Result 2471 states and 3972 transitions. [2021-01-07 05:46:36,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:36,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-01-07 05:46:36,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:36,960 INFO L225 Difference]: With dead ends: 2471 [2021-01-07 05:46:36,961 INFO L226 Difference]: Without dead ends: 2471 [2021-01-07 05:46:36,961 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 05:46:36,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2021-01-07 05:46:37,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2469. [2021-01-07 05:46:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2469 states. [2021-01-07 05:46:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3971 transitions. [2021-01-07 05:46:37,021 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3971 transitions. Word has length 25 [2021-01-07 05:46:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:37,021 INFO L481 AbstractCegarLoop]: Abstraction has 2469 states and 3971 transitions. [2021-01-07 05:46:37,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3971 transitions. [2021-01-07 05:46:37,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-07 05:46:37,024 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:37,024 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 05:46:37,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-07 05:46:37,025 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:37,026 INFO L82 PathProgramCache]: Analyzing trace with hash -608860292, now seen corresponding path program 1 times [2021-01-07 05:46:37,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:37,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280261185] [2021-01-07 05:46:37,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:37,048 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 05:46:37,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280261185] [2021-01-07 05:46:37,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:37,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:37,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020685548] [2021-01-07 05:46:37,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:37,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:37,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:37,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:37,051 INFO L87 Difference]: Start difference. First operand 2469 states and 3971 transitions. Second operand 3 states. [2021-01-07 05:46:37,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:37,075 INFO L93 Difference]: Finished difference Result 2503 states and 3972 transitions. [2021-01-07 05:46:37,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:37,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-01-07 05:46:37,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:37,088 INFO L225 Difference]: With dead ends: 2503 [2021-01-07 05:46:37,089 INFO L226 Difference]: Without dead ends: 2503 [2021-01-07 05:46:37,089 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 05:46:37,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2021-01-07 05:46:37,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2501. [2021-01-07 05:46:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2501 states. [2021-01-07 05:46:37,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3971 transitions. [2021-01-07 05:46:37,170 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3971 transitions. Word has length 26 [2021-01-07 05:46:37,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:37,170 INFO L481 AbstractCegarLoop]: Abstraction has 2501 states and 3971 transitions. [2021-01-07 05:46:37,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:37,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3971 transitions. [2021-01-07 05:46:37,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-07 05:46:37,174 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:37,174 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 05:46:37,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-07 05:46:37,175 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:37,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:37,175 INFO L82 PathProgramCache]: Analyzing trace with hash 2097759102, now seen corresponding path program 1 times [2021-01-07 05:46:37,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:37,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738045073] [2021-01-07 05:46:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:37,196 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 05:46:37,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738045073] [2021-01-07 05:46:37,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:37,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:37,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768157561] [2021-01-07 05:46:37,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:37,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:37,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:37,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:37,198 INFO L87 Difference]: Start difference. First operand 2501 states and 3971 transitions. Second operand 3 states. [2021-01-07 05:46:37,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:37,232 INFO L93 Difference]: Finished difference Result 4487 states and 7204 transitions. [2021-01-07 05:46:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:37,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-01-07 05:46:37,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:37,255 INFO L225 Difference]: With dead ends: 4487 [2021-01-07 05:46:37,255 INFO L226 Difference]: Without dead ends: 4487 [2021-01-07 05:46:37,256 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 05:46:37,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2021-01-07 05:46:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 3589. [2021-01-07 05:46:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3589 states. [2021-01-07 05:46:37,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 5539 transitions. [2021-01-07 05:46:37,363 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 5539 transitions. Word has length 26 [2021-01-07 05:46:37,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:37,364 INFO L481 AbstractCegarLoop]: Abstraction has 3589 states and 5539 transitions. [2021-01-07 05:46:37,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:37,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 5539 transitions. [2021-01-07 05:46:37,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-07 05:46:37,369 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:37,369 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 05:46:37,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-07 05:46:37,370 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:37,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:37,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1076690748, now seen corresponding path program 1 times [2021-01-07 05:46:37,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:37,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941552613] [2021-01-07 05:46:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:37,391 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 05:46:37,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941552613] [2021-01-07 05:46:37,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:37,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:37,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719546854] [2021-01-07 05:46:37,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:37,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:37,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:37,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:37,393 INFO L87 Difference]: Start difference. First operand 3589 states and 5539 transitions. Second operand 3 states. [2021-01-07 05:46:37,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:37,452 INFO L93 Difference]: Finished difference Result 4871 states and 7492 transitions. [2021-01-07 05:46:37,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:37,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-01-07 05:46:37,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:37,478 INFO L225 Difference]: With dead ends: 4871 [2021-01-07 05:46:37,479 INFO L226 Difference]: Without dead ends: 4871 [2021-01-07 05:46:37,479 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 05:46:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2021-01-07 05:46:37,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 4869. [2021-01-07 05:46:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4869 states. [2021-01-07 05:46:37,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 7491 transitions. [2021-01-07 05:46:37,626 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 7491 transitions. Word has length 26 [2021-01-07 05:46:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:37,626 INFO L481 AbstractCegarLoop]: Abstraction has 4869 states and 7491 transitions. [2021-01-07 05:46:37,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:37,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 7491 transitions. [2021-01-07 05:46:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-07 05:46:37,632 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:37,632 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, 1, 1, 1, 1, 1] [2021-01-07 05:46:37,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-07 05:46:37,633 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:37,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:37,633 INFO L82 PathProgramCache]: Analyzing trace with hash 606237144, now seen corresponding path program 1 times [2021-01-07 05:46:37,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:37,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839412940] [2021-01-07 05:46:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:37,654 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 05:46:37,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839412940] [2021-01-07 05:46:37,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:37,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:37,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686596854] [2021-01-07 05:46:37,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:37,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:37,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:37,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:37,656 INFO L87 Difference]: Start difference. First operand 4869 states and 7491 transitions. Second operand 3 states. [2021-01-07 05:46:37,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:37,686 INFO L93 Difference]: Finished difference Result 4935 states and 7492 transitions. [2021-01-07 05:46:37,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:37,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-01-07 05:46:37,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:37,700 INFO L225 Difference]: With dead ends: 4935 [2021-01-07 05:46:37,701 INFO L226 Difference]: Without dead ends: 4935 [2021-01-07 05:46:37,701 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 05:46:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2021-01-07 05:46:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4933. [2021-01-07 05:46:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4933 states. [2021-01-07 05:46:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4933 states to 4933 states and 7491 transitions. [2021-01-07 05:46:37,806 INFO L78 Accepts]: Start accepts. Automaton has 4933 states and 7491 transitions. Word has length 27 [2021-01-07 05:46:37,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:37,806 INFO L481 AbstractCegarLoop]: Abstraction has 4933 states and 7491 transitions. [2021-01-07 05:46:37,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:37,806 INFO L276 IsEmpty]: Start isEmpty. Operand 4933 states and 7491 transitions. [2021-01-07 05:46:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-07 05:46:37,811 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:37,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:37,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-07 05:46:37,812 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:37,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:37,813 INFO L82 PathProgramCache]: Analyzing trace with hash -982110758, now seen corresponding path program 1 times [2021-01-07 05:46:37,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:37,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906691187] [2021-01-07 05:46:37,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:37,832 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 05:46:37,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906691187] [2021-01-07 05:46:37,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:37,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:37,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986042526] [2021-01-07 05:46:37,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:37,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:37,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:37,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:37,834 INFO L87 Difference]: Start difference. First operand 4933 states and 7491 transitions. Second operand 3 states. [2021-01-07 05:46:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:37,894 INFO L93 Difference]: Finished difference Result 8711 states and 13380 transitions. [2021-01-07 05:46:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:37,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-01-07 05:46:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:37,916 INFO L225 Difference]: With dead ends: 8711 [2021-01-07 05:46:37,916 INFO L226 Difference]: Without dead ends: 8711 [2021-01-07 05:46:37,916 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 05:46:37,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8711 states. [2021-01-07 05:46:38,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8711 to 7173. [2021-01-07 05:46:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7173 states. [2021-01-07 05:46:38,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7173 states to 7173 states and 10563 transitions. [2021-01-07 05:46:38,132 INFO L78 Accepts]: Start accepts. Automaton has 7173 states and 10563 transitions. Word has length 27 [2021-01-07 05:46:38,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:38,133 INFO L481 AbstractCegarLoop]: Abstraction has 7173 states and 10563 transitions. [2021-01-07 05:46:38,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:38,133 INFO L276 IsEmpty]: Start isEmpty. Operand 7173 states and 10563 transitions. [2021-01-07 05:46:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-07 05:46:38,143 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:38,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:38,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-07 05:46:38,144 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:38,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:38,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2003179112, now seen corresponding path program 1 times [2021-01-07 05:46:38,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:38,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193551556] [2021-01-07 05:46:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:38,185 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 05:46:38,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193551556] [2021-01-07 05:46:38,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:38,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:38,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935895762] [2021-01-07 05:46:38,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:38,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:38,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:38,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:38,187 INFO L87 Difference]: Start difference. First operand 7173 states and 10563 transitions. Second operand 3 states. [2021-01-07 05:46:38,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:38,258 INFO L93 Difference]: Finished difference Result 9607 states and 14084 transitions. [2021-01-07 05:46:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:38,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-01-07 05:46:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:38,279 INFO L225 Difference]: With dead ends: 9607 [2021-01-07 05:46:38,280 INFO L226 Difference]: Without dead ends: 9607 [2021-01-07 05:46:38,280 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 05:46:38,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2021-01-07 05:46:38,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9605. [2021-01-07 05:46:38,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9605 states. [2021-01-07 05:46:38,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9605 states to 9605 states and 14083 transitions. [2021-01-07 05:46:38,545 INFO L78 Accepts]: Start accepts. Automaton has 9605 states and 14083 transitions. Word has length 27 [2021-01-07 05:46:38,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:38,545 INFO L481 AbstractCegarLoop]: Abstraction has 9605 states and 14083 transitions. [2021-01-07 05:46:38,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:38,545 INFO L276 IsEmpty]: Start isEmpty. Operand 9605 states and 14083 transitions. [2021-01-07 05:46:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-07 05:46:38,556 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:38,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:38,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-07 05:46:38,557 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:38,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash -380447663, now seen corresponding path program 1 times [2021-01-07 05:46:38,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:38,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397076894] [2021-01-07 05:46:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:38,576 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 05:46:38,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397076894] [2021-01-07 05:46:38,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:38,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:38,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122180930] [2021-01-07 05:46:38,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:38,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:38,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:38,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:38,578 INFO L87 Difference]: Start difference. First operand 9605 states and 14083 transitions. Second operand 3 states. [2021-01-07 05:46:38,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:38,625 INFO L93 Difference]: Finished difference Result 9735 states and 14084 transitions. [2021-01-07 05:46:38,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:38,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-07 05:46:38,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:38,649 INFO L225 Difference]: With dead ends: 9735 [2021-01-07 05:46:38,649 INFO L226 Difference]: Without dead ends: 9735 [2021-01-07 05:46:38,650 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 05:46:38,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9735 states. [2021-01-07 05:46:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9735 to 9733. [2021-01-07 05:46:38,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9733 states. [2021-01-07 05:46:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9733 states to 9733 states and 14083 transitions. [2021-01-07 05:46:38,918 INFO L78 Accepts]: Start accepts. Automaton has 9733 states and 14083 transitions. Word has length 28 [2021-01-07 05:46:38,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:38,918 INFO L481 AbstractCegarLoop]: Abstraction has 9733 states and 14083 transitions. [2021-01-07 05:46:38,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 9733 states and 14083 transitions. [2021-01-07 05:46:38,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-07 05:46:38,929 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:38,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:38,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-07 05:46:38,929 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:38,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:38,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1968795565, now seen corresponding path program 1 times [2021-01-07 05:46:38,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:38,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048107660] [2021-01-07 05:46:38,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:38,948 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 05:46:38,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048107660] [2021-01-07 05:46:38,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:38,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:38,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793666269] [2021-01-07 05:46:38,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:38,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:38,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:38,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:38,950 INFO L87 Difference]: Start difference. First operand 9733 states and 14083 transitions. Second operand 3 states. [2021-01-07 05:46:39,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:39,019 INFO L93 Difference]: Finished difference Result 16903 states and 24708 transitions. [2021-01-07 05:46:39,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:39,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-07 05:46:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:39,060 INFO L225 Difference]: With dead ends: 16903 [2021-01-07 05:46:39,060 INFO L226 Difference]: Without dead ends: 16903 [2021-01-07 05:46:39,060 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 05:46:39,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16903 states. [2021-01-07 05:46:39,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16903 to 14341. [2021-01-07 05:46:39,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14341 states. [2021-01-07 05:46:39,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14341 states to 14341 states and 20099 transitions. [2021-01-07 05:46:39,442 INFO L78 Accepts]: Start accepts. Automaton has 14341 states and 20099 transitions. Word has length 28 [2021-01-07 05:46:39,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:39,442 INFO L481 AbstractCegarLoop]: Abstraction has 14341 states and 20099 transitions. [2021-01-07 05:46:39,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 14341 states and 20099 transitions. [2021-01-07 05:46:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-07 05:46:39,462 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:39,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:39,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-07 05:46:39,466 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:39,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:39,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1305103377, now seen corresponding path program 1 times [2021-01-07 05:46:39,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:39,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565157353] [2021-01-07 05:46:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:39,488 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 05:46:39,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565157353] [2021-01-07 05:46:39,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:39,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:39,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817001134] [2021-01-07 05:46:39,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:39,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:39,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:39,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:39,657 INFO L87 Difference]: Start difference. First operand 14341 states and 20099 transitions. Second operand 3 states. [2021-01-07 05:46:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:39,740 INFO L93 Difference]: Finished difference Result 18951 states and 26372 transitions. [2021-01-07 05:46:39,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:39,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-01-07 05:46:39,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:39,784 INFO L225 Difference]: With dead ends: 18951 [2021-01-07 05:46:39,784 INFO L226 Difference]: Without dead ends: 18951 [2021-01-07 05:46:39,784 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 05:46:39,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18951 states. [2021-01-07 05:46:40,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18951 to 18949. [2021-01-07 05:46:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18949 states. [2021-01-07 05:46:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18949 states to 18949 states and 26371 transitions. [2021-01-07 05:46:40,378 INFO L78 Accepts]: Start accepts. Automaton has 18949 states and 26371 transitions. Word has length 28 [2021-01-07 05:46:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:40,378 INFO L481 AbstractCegarLoop]: Abstraction has 18949 states and 26371 transitions. [2021-01-07 05:46:40,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 18949 states and 26371 transitions. [2021-01-07 05:46:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-07 05:46:40,400 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:40,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:40,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-07 05:46:40,401 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:40,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:40,402 INFO L82 PathProgramCache]: Analyzing trace with hash -902905267, now seen corresponding path program 1 times [2021-01-07 05:46:40,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:40,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16468223] [2021-01-07 05:46:40,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:40,422 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 05:46:40,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16468223] [2021-01-07 05:46:40,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:40,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:40,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118214057] [2021-01-07 05:46:40,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:40,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:40,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:40,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:40,425 INFO L87 Difference]: Start difference. First operand 18949 states and 26371 transitions. Second operand 3 states. [2021-01-07 05:46:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:40,501 INFO L93 Difference]: Finished difference Result 19207 states and 26372 transitions. [2021-01-07 05:46:40,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:40,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2021-01-07 05:46:40,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:40,543 INFO L225 Difference]: With dead ends: 19207 [2021-01-07 05:46:40,543 INFO L226 Difference]: Without dead ends: 19207 [2021-01-07 05:46:40,544 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 05:46:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19207 states. [2021-01-07 05:46:40,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19207 to 19205. [2021-01-07 05:46:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19205 states. [2021-01-07 05:46:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19205 states to 19205 states and 26371 transitions. [2021-01-07 05:46:41,065 INFO L78 Accepts]: Start accepts. Automaton has 19205 states and 26371 transitions. Word has length 29 [2021-01-07 05:46:41,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:41,065 INFO L481 AbstractCegarLoop]: Abstraction has 19205 states and 26371 transitions. [2021-01-07 05:46:41,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:41,065 INFO L276 IsEmpty]: Start isEmpty. Operand 19205 states and 26371 transitions. [2021-01-07 05:46:41,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-07 05:46:41,091 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:41,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:41,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-07 05:46:41,095 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:41,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:41,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1803714127, now seen corresponding path program 1 times [2021-01-07 05:46:41,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:41,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193360591] [2021-01-07 05:46:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:41,118 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 05:46:41,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193360591] [2021-01-07 05:46:41,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:41,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:41,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281078913] [2021-01-07 05:46:41,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:41,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:41,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:41,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:41,120 INFO L87 Difference]: Start difference. First operand 19205 states and 26371 transitions. Second operand 3 states. [2021-01-07 05:46:41,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:41,248 INFO L93 Difference]: Finished difference Result 32775 states and 45316 transitions. [2021-01-07 05:46:41,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:41,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2021-01-07 05:46:41,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:41,419 INFO L225 Difference]: With dead ends: 32775 [2021-01-07 05:46:41,419 INFO L226 Difference]: Without dead ends: 32775 [2021-01-07 05:46:41,421 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 05:46:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32775 states. [2021-01-07 05:46:42,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32775 to 28677. [2021-01-07 05:46:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28677 states. [2021-01-07 05:46:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28677 states to 28677 states and 38147 transitions. [2021-01-07 05:46:42,109 INFO L78 Accepts]: Start accepts. Automaton has 28677 states and 38147 transitions. Word has length 29 [2021-01-07 05:46:42,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:42,109 INFO L481 AbstractCegarLoop]: Abstraction has 28677 states and 38147 transitions. [2021-01-07 05:46:42,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 28677 states and 38147 transitions. [2021-01-07 05:46:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-07 05:46:42,158 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:42,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:42,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-07 05:46:42,159 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:42,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:42,160 INFO L82 PathProgramCache]: Analyzing trace with hash 782645773, now seen corresponding path program 1 times [2021-01-07 05:46:42,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:42,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944514604] [2021-01-07 05:46:42,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:42,178 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 05:46:42,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944514604] [2021-01-07 05:46:42,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:42,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:42,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620308786] [2021-01-07 05:46:42,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:42,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:42,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:42,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:42,181 INFO L87 Difference]: Start difference. First operand 28677 states and 38147 transitions. Second operand 3 states. [2021-01-07 05:46:42,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:42,310 INFO L93 Difference]: Finished difference Result 37383 states and 49156 transitions. [2021-01-07 05:46:42,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:42,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2021-01-07 05:46:42,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:42,531 INFO L225 Difference]: With dead ends: 37383 [2021-01-07 05:46:42,531 INFO L226 Difference]: Without dead ends: 37383 [2021-01-07 05:46:42,536 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 05:46:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37383 states. [2021-01-07 05:46:43,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37383 to 37381. [2021-01-07 05:46:43,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37381 states. [2021-01-07 05:46:43,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37381 states to 37381 states and 49155 transitions. [2021-01-07 05:46:43,433 INFO L78 Accepts]: Start accepts. Automaton has 37381 states and 49155 transitions. Word has length 29 [2021-01-07 05:46:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:43,434 INFO L481 AbstractCegarLoop]: Abstraction has 37381 states and 49155 transitions. [2021-01-07 05:46:43,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:43,434 INFO L276 IsEmpty]: Start isEmpty. Operand 37381 states and 49155 transitions. [2021-01-07 05:46:43,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-07 05:46:43,461 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:43,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:43,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-07 05:46:43,461 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:43,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:43,462 INFO L82 PathProgramCache]: Analyzing trace with hash 80778534, now seen corresponding path program 1 times [2021-01-07 05:46:43,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:43,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565689389] [2021-01-07 05:46:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:43,479 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 05:46:43,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565689389] [2021-01-07 05:46:43,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:43,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:43,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287859585] [2021-01-07 05:46:43,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:43,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:43,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:43,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:43,482 INFO L87 Difference]: Start difference. First operand 37381 states and 49155 transitions. Second operand 3 states. [2021-01-07 05:46:43,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:43,612 INFO L93 Difference]: Finished difference Result 37895 states and 49156 transitions. [2021-01-07 05:46:43,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:43,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-01-07 05:46:43,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:43,667 INFO L225 Difference]: With dead ends: 37895 [2021-01-07 05:46:43,667 INFO L226 Difference]: Without dead ends: 37895 [2021-01-07 05:46:43,668 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 05:46:43,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37895 states. [2021-01-07 05:46:44,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37895 to 37893. [2021-01-07 05:46:44,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37893 states. [2021-01-07 05:46:44,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37893 states to 37893 states and 49155 transitions. [2021-01-07 05:46:44,415 INFO L78 Accepts]: Start accepts. Automaton has 37893 states and 49155 transitions. Word has length 30 [2021-01-07 05:46:44,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:44,416 INFO L481 AbstractCegarLoop]: Abstraction has 37893 states and 49155 transitions. [2021-01-07 05:46:44,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:44,416 INFO L276 IsEmpty]: Start isEmpty. Operand 37893 states and 49155 transitions. [2021-01-07 05:46:44,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-07 05:46:44,436 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:44,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:44,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-07 05:46:44,437 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:44,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:44,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1507569368, now seen corresponding path program 1 times [2021-01-07 05:46:44,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:44,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783156472] [2021-01-07 05:46:44,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:44,456 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 05:46:44,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783156472] [2021-01-07 05:46:44,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:44,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:44,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912400755] [2021-01-07 05:46:44,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:44,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:44,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:44,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:44,458 INFO L87 Difference]: Start difference. First operand 37893 states and 49155 transitions. Second operand 3 states. [2021-01-07 05:46:44,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:44,841 INFO L93 Difference]: Finished difference Result 73735 states and 92164 transitions. [2021-01-07 05:46:44,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:44,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-01-07 05:46:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:44,958 INFO L225 Difference]: With dead ends: 73735 [2021-01-07 05:46:44,959 INFO L226 Difference]: Without dead ends: 73735 [2021-01-07 05:46:44,959 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 05:46:45,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73735 states. [2021-01-07 05:46:46,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73735 to 73733. [2021-01-07 05:46:46,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73733 states. [2021-01-07 05:46:46,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73733 states to 73733 states and 92163 transitions. [2021-01-07 05:46:46,145 INFO L78 Accepts]: Start accepts. Automaton has 73733 states and 92163 transitions. Word has length 30 [2021-01-07 05:46:46,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:46,146 INFO L481 AbstractCegarLoop]: Abstraction has 73733 states and 92163 transitions. [2021-01-07 05:46:46,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:46,146 INFO L276 IsEmpty]: Start isEmpty. Operand 73733 states and 92163 transitions. [2021-01-07 05:46:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-07 05:46:46,194 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:46,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:46,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-07 05:46:46,195 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:46,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:46,196 INFO L82 PathProgramCache]: Analyzing trace with hash -486501014, now seen corresponding path program 1 times [2021-01-07 05:46:46,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:46,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645650678] [2021-01-07 05:46:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:46,223 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 05:46:46,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645650678] [2021-01-07 05:46:46,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:46,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:46,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559401445] [2021-01-07 05:46:46,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:46,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:46,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:46,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:46,225 INFO L87 Difference]: Start difference. First operand 73733 states and 92163 transitions. Second operand 3 states. [2021-01-07 05:46:46,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:46,853 INFO L93 Difference]: Finished difference Result 79879 states and 101380 transitions. [2021-01-07 05:46:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:46,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-01-07 05:46:46,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:46,976 INFO L225 Difference]: With dead ends: 79879 [2021-01-07 05:46:46,977 INFO L226 Difference]: Without dead ends: 79879 [2021-01-07 05:46:46,977 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 05:46:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79879 states. [2021-01-07 05:46:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79879 to 73733. [2021-01-07 05:46:48,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73733 states. [2021-01-07 05:46:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73733 states to 73733 states and 91139 transitions. [2021-01-07 05:46:48,310 INFO L78 Accepts]: Start accepts. Automaton has 73733 states and 91139 transitions. Word has length 30 [2021-01-07 05:46:48,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:48,311 INFO L481 AbstractCegarLoop]: Abstraction has 73733 states and 91139 transitions. [2021-01-07 05:46:48,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:48,311 INFO L276 IsEmpty]: Start isEmpty. Operand 73733 states and 91139 transitions. [2021-01-07 05:46:48,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-07 05:46:48,357 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:48,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:48,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-07 05:46:48,357 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:48,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:48,358 INFO L82 PathProgramCache]: Analyzing trace with hash 510205634, now seen corresponding path program 1 times [2021-01-07 05:46:48,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:48,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612823854] [2021-01-07 05:46:48,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:48,378 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 05:46:48,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612823854] [2021-01-07 05:46:48,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:48,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:48,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159988772] [2021-01-07 05:46:48,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:48,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:48,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:48,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:48,380 INFO L87 Difference]: Start difference. First operand 73733 states and 91139 transitions. Second operand 3 states. [2021-01-07 05:46:49,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:49,127 INFO L93 Difference]: Finished difference Result 121863 states and 149508 transitions. [2021-01-07 05:46:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:49,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2021-01-07 05:46:49,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:49,354 INFO L225 Difference]: With dead ends: 121863 [2021-01-07 05:46:49,354 INFO L226 Difference]: Without dead ends: 121863 [2021-01-07 05:46:49,355 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 05:46:49,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121863 states. [2021-01-07 05:46:50,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121863 to 113669. [2021-01-07 05:46:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113669 states. [2021-01-07 05:46:51,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113669 states to 113669 states and 137219 transitions. [2021-01-07 05:46:51,356 INFO L78 Accepts]: Start accepts. Automaton has 113669 states and 137219 transitions. Word has length 31 [2021-01-07 05:46:51,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:51,356 INFO L481 AbstractCegarLoop]: Abstraction has 113669 states and 137219 transitions. [2021-01-07 05:46:51,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:51,356 INFO L276 IsEmpty]: Start isEmpty. Operand 113669 states and 137219 transitions. [2021-01-07 05:46:51,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-07 05:46:51,442 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:51,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:51,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-07 05:46:51,443 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:51,443 INFO L82 PathProgramCache]: Analyzing trace with hash -510862720, now seen corresponding path program 1 times [2021-01-07 05:46:51,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:51,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562036867] [2021-01-07 05:46:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:51,462 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 05:46:51,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562036867] [2021-01-07 05:46:51,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:51,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:51,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404682302] [2021-01-07 05:46:51,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:51,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:51,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:51,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:51,465 INFO L87 Difference]: Start difference. First operand 113669 states and 137219 transitions. Second operand 3 states. [2021-01-07 05:46:51,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:51,785 INFO L93 Difference]: Finished difference Result 144391 states and 169988 transitions. [2021-01-07 05:46:51,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:51,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2021-01-07 05:46:51,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:51,938 INFO L225 Difference]: With dead ends: 144391 [2021-01-07 05:46:51,939 INFO L226 Difference]: Without dead ends: 144391 [2021-01-07 05:46:51,939 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 05:46:51,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144391 states. [2021-01-07 05:46:54,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144391 to 144389. [2021-01-07 05:46:54,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144389 states. [2021-01-07 05:46:54,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144389 states to 144389 states and 169987 transitions. [2021-01-07 05:46:54,762 INFO L78 Accepts]: Start accepts. Automaton has 144389 states and 169987 transitions. Word has length 31 [2021-01-07 05:46:54,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:54,762 INFO L481 AbstractCegarLoop]: Abstraction has 144389 states and 169987 transitions. [2021-01-07 05:46:54,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:54,762 INFO L276 IsEmpty]: Start isEmpty. Operand 144389 states and 169987 transitions. [2021-01-07 05:46:54,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-07 05:46:54,872 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:54,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:54,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-07 05:46:54,873 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:54,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1363278403, now seen corresponding path program 1 times [2021-01-07 05:46:54,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:54,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270121864] [2021-01-07 05:46:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:54,910 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 05:46:54,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270121864] [2021-01-07 05:46:54,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:54,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:54,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767445440] [2021-01-07 05:46:54,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:54,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:54,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:54,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:54,914 INFO L87 Difference]: Start difference. First operand 144389 states and 169987 transitions. Second operand 3 states. [2021-01-07 05:46:55,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:55,300 INFO L93 Difference]: Finished difference Result 147463 states and 172036 transitions. [2021-01-07 05:46:55,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:55,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-01-07 05:46:55,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:55,465 INFO L225 Difference]: With dead ends: 147463 [2021-01-07 05:46:55,465 INFO L226 Difference]: Without dead ends: 147463 [2021-01-07 05:46:55,466 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 05:46:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147463 states. [2021-01-07 05:46:57,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147463 to 147461. [2021-01-07 05:46:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147461 states. [2021-01-07 05:46:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147461 states to 147461 states and 172035 transitions. [2021-01-07 05:46:58,335 INFO L78 Accepts]: Start accepts. Automaton has 147461 states and 172035 transitions. Word has length 32 [2021-01-07 05:46:58,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:58,336 INFO L481 AbstractCegarLoop]: Abstraction has 147461 states and 172035 transitions. [2021-01-07 05:46:58,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand 147461 states and 172035 transitions. [2021-01-07 05:46:58,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-07 05:46:58,504 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:58,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:46:58,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-07 05:46:58,504 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:46:58,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:58,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1343340991, now seen corresponding path program 1 times [2021-01-07 05:46:58,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:58,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244710309] [2021-01-07 05:46:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:58,523 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 05:46:58,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244710309] [2021-01-07 05:46:58,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:58,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:46:58,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198119982] [2021-01-07 05:46:58,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:58,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:58,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:58,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:58,528 INFO L87 Difference]: Start difference. First operand 147461 states and 172035 transitions. Second operand 3 states. [2021-01-07 05:46:59,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:59,575 INFO L93 Difference]: Finished difference Result 237573 states and 270339 transitions. [2021-01-07 05:46:59,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:59,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-01-07 05:46:59,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:59,958 INFO L225 Difference]: With dead ends: 237573 [2021-01-07 05:46:59,958 INFO L226 Difference]: Without dead ends: 237573 [2021-01-07 05:46:59,959 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 05:47:00,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237573 states. [2021-01-07 05:47:02,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237573 to 229381. [2021-01-07 05:47:02,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229381 states. [2021-01-07 05:47:03,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229381 states to 229381 states and 262147 transitions. [2021-01-07 05:47:03,586 INFO L78 Accepts]: Start accepts. Automaton has 229381 states and 262147 transitions. Word has length 32 [2021-01-07 05:47:03,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:03,586 INFO L481 AbstractCegarLoop]: Abstraction has 229381 states and 262147 transitions. [2021-01-07 05:47:03,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:47:03,586 INFO L276 IsEmpty]: Start isEmpty. Operand 229381 states and 262147 transitions. [2021-01-07 05:47:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-07 05:47:03,769 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:47:03,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:47:03,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-07 05:47:03,769 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-01-07 05:47:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:47:03,770 INFO L82 PathProgramCache]: Analyzing trace with hash 322272637, now seen corresponding path program 1 times [2021-01-07 05:47:03,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:47:03,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784146150] [2021-01-07 05:47:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:47:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:03,794 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 05:47:03,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784146150] [2021-01-07 05:47:03,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:47:03,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:47:03,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673072298] [2021-01-07 05:47:03,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:47:03,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:47:03,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:47:03,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:47:03,796 INFO L87 Difference]: Start difference. First operand 229381 states and 262147 transitions. Second operand 3 states. [2021-01-07 05:47:05,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:47:05,115 INFO L93 Difference]: Finished difference Result 286723 states and 315394 transitions. [2021-01-07 05:47:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:47:05,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-01-07 05:47:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:47:05,116 INFO L225 Difference]: With dead ends: 286723 [2021-01-07 05:47:05,116 INFO L226 Difference]: Without dead ends: 0 [2021-01-07 05:47:05,116 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 05:47:05,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-07 05:47:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-07 05:47:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-07 05:47:05,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-07 05:47:05,117 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-01-07 05:47:05,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:05,117 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-07 05:47:05,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:47:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-07 05:47:05,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-07 05:47:05,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-01-07 05:47:05,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:47:05 BoogieIcfgContainer [2021-01-07 05:47:05,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:47:05,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:47:05,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:47:05,124 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:47:05,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:34" (3/4) ... [2021-01-07 05:47:05,129 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-07 05:47:05,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-01-07 05:47:05,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-07 05:47:05,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-01-07 05:47:05,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-07 05:47:05,207 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/locks/test_locks_13.c-witness.graphml [2021-01-07 05:47:05,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:47:05,210 INFO L168 Benchmark]: Toolchain (without parser) took 31746.64 ms. Allocated memory was 151.0 MB in the beginning and 7.8 GB in the end (delta: 7.7 GB). Free memory was 125.8 MB in the beginning and 4.9 GB in the end (delta: -4.8 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. [2021-01-07 05:47:05,210 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:47:05,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.75 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 114.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:05,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.69 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 112.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:05,211 INFO L168 Benchmark]: Boogie Preprocessor took 64.29 ms. Allocated memory is still 151.0 MB. Free memory was 112.9 MB in the beginning and 111.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:05,212 INFO L168 Benchmark]: RCFGBuilder took 552.31 ms. Allocated memory is still 151.0 MB. Free memory was 111.5 MB in the beginning and 121.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:05,212 INFO L168 Benchmark]: TraceAbstraction took 30647.43 ms. Allocated memory was 151.0 MB in the beginning and 7.8 GB in the end (delta: 7.7 GB). Free memory was 120.9 MB in the beginning and 4.9 GB in the end (delta: -4.8 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. [2021-01-07 05:47:05,213 INFO L168 Benchmark]: Witness Printer took 83.34 ms. Allocated memory is still 7.8 GB. Free memory was 4.9 GB in the beginning and 4.9 GB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:05,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 319.75 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 114.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 62.69 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 112.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.29 ms. Allocated memory is still 151.0 MB. Free memory was 112.9 MB in the beginning and 111.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 552.31 ms. Allocated memory is still 151.0 MB. Free memory was 111.5 MB in the beginning and 121.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 30647.43 ms. Allocated memory was 151.0 MB in the beginning and 7.8 GB in the end (delta: 7.7 GB). Free memory was 120.9 MB in the beginning and 4.9 GB in the end (delta: -4.8 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. * Witness Printer took 83.34 ms. Allocated memory is still 7.8 GB. Free memory was 4.9 GB in the beginning and 4.9 GB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 205]: 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, 50 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.5s, OverallIterations: 38, TraceHistogramMax: 1, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3966 SDtfs, 2002 SDslu, 2564 SDs, 0 SdLazy, 192 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229381occurred in iteration=37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 19.3s AutomataMinimizationTime, 38 MinimizatonAttempts, 32806 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 913 ConstructedInterpolants, 0 QuantifiedInterpolants, 50713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 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...