./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_12.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12c3feea735c5360de013afbcf9aaa3880d39f75cbb7661493cccf003151044d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:07:18,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:07:18,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:07:18,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:07:18,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:07:18,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:07:18,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:07:18,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:07:18,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:07:18,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:07:18,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:07:18,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:07:18,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:07:18,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:07:18,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:07:18,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:07:18,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:07:18,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:07:18,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:07:18,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:07:18,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:07:18,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:07:18,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:07:18,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:07:18,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:07:18,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:07:18,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:07:18,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:07:18,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:07:18,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:07:18,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:07:18,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:07:18,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:07:18,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:07:18,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:07:18,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:07:18,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:07:18,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:07:18,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:07:18,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:07:18,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:07:18,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:07:18,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:07:18,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:07:18,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:07:18,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:07:18,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:07:18,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:07:18,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:07:18,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:07:18,969 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:07:18,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:07:18,970 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:07:18,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:07:18,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:07:18,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:07:18,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:07:18,970 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:07:18,971 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:07:18,971 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:07:18,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:07:18,971 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:07:18,971 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:07:18,971 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:07:18,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:07:18,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:07:18,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:07:18,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:07:18,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:07:18,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:07:18,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:07:18,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:07:18,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:07:18,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12c3feea735c5360de013afbcf9aaa3880d39f75cbb7661493cccf003151044d [2021-12-15 14:07:19,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:07:19,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:07:19,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:07:19,211 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:07:19,212 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:07:19,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_12.c [2021-12-15 14:07:19,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a69bc83/53af0ce6cf5c43a682a1d5d855e21deb/FLAGf51c9cd20 [2021-12-15 14:07:19,611 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:07:19,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_12.c [2021-12-15 14:07:19,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a69bc83/53af0ce6cf5c43a682a1d5d855e21deb/FLAGf51c9cd20 [2021-12-15 14:07:19,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a69bc83/53af0ce6cf5c43a682a1d5d855e21deb [2021-12-15 14:07:19,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:07:19,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:07:19,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:07:19,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:07:19,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:07:19,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e0d4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19, skipping insertion in model container [2021-12-15 14:07:19,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:07:19,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:07:19,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_12.c[4591,4604] [2021-12-15 14:07:19,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:07:19,865 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:07:19,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_12.c[4591,4604] [2021-12-15 14:07:19,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:07:19,907 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:07:19,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19 WrapperNode [2021-12-15 14:07:19,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:07:19,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:07:19,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:07:19,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:07:19,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,960 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 160 [2021-12-15 14:07:19,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:07:19,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:07:19,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:07:19,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:07:19,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:19,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:07:19,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:07:19,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:07:19,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:07:19,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (1/1) ... [2021-12-15 14:07:20,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:07:20,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:07:20,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 14:07:20,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 14:07:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:07:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:07:20,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:07:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 14:07:20,117 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:07:20,118 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:07:20,350 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 14:07:20,354 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 14:07:20,355 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 14:07:20,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:07:20 BoogieIcfgContainer [2021-12-15 14:07:20,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 14:07:20,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 14:07:20,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 14:07:20,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 14:07:20,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 02:07:19" (1/3) ... [2021-12-15 14:07:20,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3baa6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:07:20, skipping insertion in model container [2021-12-15 14:07:20,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:19" (2/3) ... [2021-12-15 14:07:20,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3baa6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:07:20, skipping insertion in model container [2021-12-15 14:07:20,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:07:20" (3/3) ... [2021-12-15 14:07:20,374 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_12.c [2021-12-15 14:07:20,377 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 14:07:20,377 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 14:07:20,418 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 14:07:20,425 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 14:07:20,426 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-15 14:07:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 46 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-15 14:07:20,441 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:20,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-15 14:07:20,442 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:20,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:20,446 INFO L85 PathProgramCache]: Analyzing trace with hash 28704555, now seen corresponding path program 1 times [2021-12-15 14:07:20,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:20,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454092800] [2021-12-15 14:07:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:20,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:20,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:20,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454092800] [2021-12-15 14:07:20,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454092800] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:20,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:20,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 14:07:20,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228589103] [2021-12-15 14:07:20,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:20,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 14:07:20,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:20,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 14:07:20,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 14:07:20,598 INFO L87 Difference]: Start difference. First operand has 47 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 46 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:20,612 INFO L93 Difference]: Finished difference Result 47 states and 82 transitions. [2021-12-15 14:07:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 14:07:20,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-15 14:07:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:20,620 INFO L225 Difference]: With dead ends: 47 [2021-12-15 14:07:20,620 INFO L226 Difference]: Without dead ends: 45 [2021-12-15 14:07:20,622 INFO L932 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 [2021-12-15 14:07:20,626 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:20,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:20,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-15 14:07:20,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-12-15 14:07:20,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 44 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 80 transitions. [2021-12-15 14:07:20,653 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 80 transitions. Word has length 5 [2021-12-15 14:07:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:20,654 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 80 transitions. [2021-12-15 14:07:20,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 80 transitions. [2021-12-15 14:07:20,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-15 14:07:20,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:20,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-15 14:07:20,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 14:07:20,656 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash 889699051, now seen corresponding path program 1 times [2021-12-15 14:07:20,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:20,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611116437] [2021-12-15 14:07:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:20,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:20,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:20,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:20,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611116437] [2021-12-15 14:07:20,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611116437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:20,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:20,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 14:07:20,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059119375] [2021-12-15 14:07:20,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:20,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:20,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:20,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:20,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:20,728 INFO L87 Difference]: Start difference. First operand 45 states and 80 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:20,737 INFO L93 Difference]: Finished difference Result 44 states and 79 transitions. [2021-12-15 14:07:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:20,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-15 14:07:20,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:20,739 INFO L225 Difference]: With dead ends: 44 [2021-12-15 14:07:20,739 INFO L226 Difference]: Without dead ends: 42 [2021-12-15 14:07:20,742 INFO L932 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 [2021-12-15 14:07:20,744 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 74 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:20,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:20,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-15 14:07:20,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-15 14:07:20,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 41 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 77 transitions. [2021-12-15 14:07:20,755 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 77 transitions. Word has length 6 [2021-12-15 14:07:20,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:20,756 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 77 transitions. [2021-12-15 14:07:20,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,756 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 77 transitions. [2021-12-15 14:07:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-15 14:07:20,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:20,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:20,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 14:07:20,758 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:20,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1341605783, now seen corresponding path program 1 times [2021-12-15 14:07:20,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:20,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030135552] [2021-12-15 14:07:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:20,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:20,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:20,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030135552] [2021-12-15 14:07:20,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030135552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:20,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:20,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:20,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388089355] [2021-12-15 14:07:20,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:20,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:20,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:20,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:20,804 INFO L87 Difference]: Start difference. First operand 42 states and 77 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:20,843 INFO L93 Difference]: Finished difference Result 81 states and 149 transitions. [2021-12-15 14:07:20,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:20,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-15 14:07:20,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:20,846 INFO L225 Difference]: With dead ends: 81 [2021-12-15 14:07:20,846 INFO L226 Difference]: Without dead ends: 81 [2021-12-15 14:07:20,847 INFO L932 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 [2021-12-15 14:07:20,851 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 58 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:20,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 151 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-15 14:07:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2021-12-15 14:07:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 54 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 102 transitions. [2021-12-15 14:07:20,878 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 102 transitions. Word has length 19 [2021-12-15 14:07:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:20,878 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 102 transitions. [2021-12-15 14:07:20,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,879 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 102 transitions. [2021-12-15 14:07:20,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-15 14:07:20,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:20,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:20,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 14:07:20,880 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:20,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:20,881 INFO L85 PathProgramCache]: Analyzing trace with hash 61742105, now seen corresponding path program 1 times [2021-12-15 14:07:20,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:20,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613964664] [2021-12-15 14:07:20,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:20,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:20,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:20,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613964664] [2021-12-15 14:07:20,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613964664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:20,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:20,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:20,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194977414] [2021-12-15 14:07:20,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:20,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:20,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:20,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:20,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:20,935 INFO L87 Difference]: Start difference. First operand 55 states and 102 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:20,964 INFO L93 Difference]: Finished difference Result 81 states and 147 transitions. [2021-12-15 14:07:20,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:20,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-15 14:07:20,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:20,966 INFO L225 Difference]: With dead ends: 81 [2021-12-15 14:07:20,967 INFO L226 Difference]: Without dead ends: 81 [2021-12-15 14:07:20,967 INFO L932 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 [2021-12-15 14:07:20,968 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 58 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:20,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 171 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:20,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-15 14:07:20,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2021-12-15 14:07:20,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.8717948717948718) internal successors, (146), 78 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 146 transitions. [2021-12-15 14:07:20,978 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 146 transitions. Word has length 19 [2021-12-15 14:07:20,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:20,978 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 146 transitions. [2021-12-15 14:07:20,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 146 transitions. [2021-12-15 14:07:20,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-15 14:07:20,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:20,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:20,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 14:07:20,980 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:20,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:20,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1359680987, now seen corresponding path program 1 times [2021-12-15 14:07:20,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:20,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565425551] [2021-12-15 14:07:20,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:20,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565425551] [2021-12-15 14:07:21,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565425551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297016569] [2021-12-15 14:07:21,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,036 INFO L87 Difference]: Start difference. First operand 79 states and 146 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,052 INFO L93 Difference]: Finished difference Result 84 states and 149 transitions. [2021-12-15 14:07:21,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-15 14:07:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,054 INFO L225 Difference]: With dead ends: 84 [2021-12-15 14:07:21,054 INFO L226 Difference]: Without dead ends: 84 [2021-12-15 14:07:21,054 INFO L932 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 [2021-12-15 14:07:21,055 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 60 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 192 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-12-15 14:07:21,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2021-12-15 14:07:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.8271604938271604) internal successors, (148), 81 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 148 transitions. [2021-12-15 14:07:21,070 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 148 transitions. Word has length 20 [2021-12-15 14:07:21,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,070 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 148 transitions. [2021-12-15 14:07:21,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 148 transitions. [2021-12-15 14:07:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-15 14:07:21,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:21,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 14:07:21,075 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1914217955, now seen corresponding path program 1 times [2021-12-15 14:07:21,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132059768] [2021-12-15 14:07:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132059768] [2021-12-15 14:07:21,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132059768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290259052] [2021-12-15 14:07:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,136 INFO L87 Difference]: Start difference. First operand 82 states and 148 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,148 INFO L93 Difference]: Finished difference Result 155 states and 282 transitions. [2021-12-15 14:07:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-15 14:07:21,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,149 INFO L225 Difference]: With dead ends: 155 [2021-12-15 14:07:21,149 INFO L226 Difference]: Without dead ends: 155 [2021-12-15 14:07:21,149 INFO L932 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 [2021-12-15 14:07:21,150 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 55 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 149 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-15 14:07:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 109. [2021-12-15 14:07:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.8240740740740742) internal successors, (197), 108 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 197 transitions. [2021-12-15 14:07:21,163 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 197 transitions. Word has length 20 [2021-12-15 14:07:21,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,164 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 197 transitions. [2021-12-15 14:07:21,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,164 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 197 transitions. [2021-12-15 14:07:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-15 14:07:21,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:21,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 14:07:21,165 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash 634354277, now seen corresponding path program 1 times [2021-12-15 14:07:21,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742860494] [2021-12-15 14:07:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742860494] [2021-12-15 14:07:21,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742860494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690210310] [2021-12-15 14:07:21,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,216 INFO L87 Difference]: Start difference. First operand 109 states and 197 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,231 INFO L93 Difference]: Finished difference Result 157 states and 280 transitions. [2021-12-15 14:07:21,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-15 14:07:21,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,233 INFO L225 Difference]: With dead ends: 157 [2021-12-15 14:07:21,233 INFO L226 Difference]: Without dead ends: 157 [2021-12-15 14:07:21,233 INFO L932 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 [2021-12-15 14:07:21,235 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 57 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 172 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-12-15 14:07:21,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2021-12-15 14:07:21,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.8116883116883118) internal successors, (279), 154 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 279 transitions. [2021-12-15 14:07:21,242 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 279 transitions. Word has length 20 [2021-12-15 14:07:21,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,242 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 279 transitions. [2021-12-15 14:07:21,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 279 transitions. [2021-12-15 14:07:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 14:07:21,246 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:21,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 14:07:21,246 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,247 INFO L85 PathProgramCache]: Analyzing trace with hash -788572498, now seen corresponding path program 1 times [2021-12-15 14:07:21,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891879631] [2021-12-15 14:07:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891879631] [2021-12-15 14:07:21,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891879631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577832472] [2021-12-15 14:07:21,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,287 INFO L87 Difference]: Start difference. First operand 155 states and 279 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,296 INFO L93 Difference]: Finished difference Result 159 states and 280 transitions. [2021-12-15 14:07:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-15 14:07:21,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,298 INFO L225 Difference]: With dead ends: 159 [2021-12-15 14:07:21,298 INFO L226 Difference]: Without dead ends: 159 [2021-12-15 14:07:21,298 INFO L932 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 [2021-12-15 14:07:21,298 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 59 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 188 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-12-15 14:07:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2021-12-15 14:07:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 1.7884615384615385) internal successors, (279), 156 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2021-12-15 14:07:21,301 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 21 [2021-12-15 14:07:21,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,302 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2021-12-15 14:07:21,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2021-12-15 14:07:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 14:07:21,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:21,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 14:07:21,304 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1809640852, now seen corresponding path program 1 times [2021-12-15 14:07:21,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627473006] [2021-12-15 14:07:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627473006] [2021-12-15 14:07:21,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627473006] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022729560] [2021-12-15 14:07:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,345 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,354 INFO L93 Difference]: Finished difference Result 303 states and 532 transitions. [2021-12-15 14:07:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-15 14:07:21,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,357 INFO L225 Difference]: With dead ends: 303 [2021-12-15 14:07:21,357 INFO L226 Difference]: Without dead ends: 303 [2021-12-15 14:07:21,357 INFO L932 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 [2021-12-15 14:07:21,358 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 57 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 151 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-12-15 14:07:21,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2021-12-15 14:07:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.77) internal successors, (531), 300 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 531 transitions. [2021-12-15 14:07:21,362 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 531 transitions. Word has length 21 [2021-12-15 14:07:21,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,363 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 531 transitions. [2021-12-15 14:07:21,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,363 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 531 transitions. [2021-12-15 14:07:21,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 14:07:21,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:21,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 14:07:21,364 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,365 INFO L85 PathProgramCache]: Analyzing trace with hash -529777174, now seen corresponding path program 1 times [2021-12-15 14:07:21,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684659262] [2021-12-15 14:07:21,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684659262] [2021-12-15 14:07:21,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684659262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4096674] [2021-12-15 14:07:21,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,403 INFO L87 Difference]: Start difference. First operand 301 states and 531 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,411 INFO L93 Difference]: Finished difference Result 383 states and 680 transitions. [2021-12-15 14:07:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-15 14:07:21,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,412 INFO L225 Difference]: With dead ends: 383 [2021-12-15 14:07:21,413 INFO L226 Difference]: Without dead ends: 383 [2021-12-15 14:07:21,413 INFO L932 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 [2021-12-15 14:07:21,413 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 52 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 206 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-12-15 14:07:21,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 301. [2021-12-15 14:07:21,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.7566666666666666) internal successors, (527), 300 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 527 transitions. [2021-12-15 14:07:21,419 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 527 transitions. Word has length 21 [2021-12-15 14:07:21,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,419 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 527 transitions. [2021-12-15 14:07:21,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,419 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 527 transitions. [2021-12-15 14:07:21,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-15 14:07:21,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,420 INFO L514 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] [2021-12-15 14:07:21,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 14:07:21,420 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,421 INFO L85 PathProgramCache]: Analyzing trace with hash -264078182, now seen corresponding path program 1 times [2021-12-15 14:07:21,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508036132] [2021-12-15 14:07:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508036132] [2021-12-15 14:07:21,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508036132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994616294] [2021-12-15 14:07:21,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,438 INFO L87 Difference]: Start difference. First operand 301 states and 527 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,445 INFO L93 Difference]: Finished difference Result 563 states and 992 transitions. [2021-12-15 14:07:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-15 14:07:21,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,447 INFO L225 Difference]: With dead ends: 563 [2021-12-15 14:07:21,448 INFO L226 Difference]: Without dead ends: 563 [2021-12-15 14:07:21,448 INFO L932 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 [2021-12-15 14:07:21,448 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 49 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 145 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2021-12-15 14:07:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 417. [2021-12-15 14:07:21,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 416 states have (on average 1.7283653846153846) internal successors, (719), 416 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 719 transitions. [2021-12-15 14:07:21,454 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 719 transitions. Word has length 22 [2021-12-15 14:07:21,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,455 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 719 transitions. [2021-12-15 14:07:21,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 719 transitions. [2021-12-15 14:07:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-15 14:07:21,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,456 INFO L514 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] [2021-12-15 14:07:21,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 14:07:21,456 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1543941860, now seen corresponding path program 1 times [2021-12-15 14:07:21,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615178794] [2021-12-15 14:07:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615178794] [2021-12-15 14:07:21,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615178794] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762161853] [2021-12-15 14:07:21,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,472 INFO L87 Difference]: Start difference. First operand 417 states and 719 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,480 INFO L93 Difference]: Finished difference Result 587 states and 1004 transitions. [2021-12-15 14:07:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-15 14:07:21,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,483 INFO L225 Difference]: With dead ends: 587 [2021-12-15 14:07:21,483 INFO L226 Difference]: Without dead ends: 587 [2021-12-15 14:07:21,483 INFO L932 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 [2021-12-15 14:07:21,484 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 55 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 174 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-12-15 14:07:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2021-12-15 14:07:21,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 584 states have (on average 1.7174657534246576) internal successors, (1003), 584 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1003 transitions. [2021-12-15 14:07:21,492 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1003 transitions. Word has length 22 [2021-12-15 14:07:21,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,493 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 1003 transitions. [2021-12-15 14:07:21,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1003 transitions. [2021-12-15 14:07:21,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-15 14:07:21,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,495 INFO L514 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] [2021-12-15 14:07:21,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 14:07:21,495 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,496 INFO L85 PathProgramCache]: Analyzing trace with hash 403724673, now seen corresponding path program 1 times [2021-12-15 14:07:21,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029454553] [2021-12-15 14:07:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029454553] [2021-12-15 14:07:21,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029454553] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122583869] [2021-12-15 14:07:21,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,514 INFO L87 Difference]: Start difference. First operand 585 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,522 INFO L93 Difference]: Finished difference Result 599 states and 1012 transitions. [2021-12-15 14:07:21,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-15 14:07:21,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,524 INFO L225 Difference]: With dead ends: 599 [2021-12-15 14:07:21,524 INFO L226 Difference]: Without dead ends: 599 [2021-12-15 14:07:21,524 INFO L932 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 [2021-12-15 14:07:21,525 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 57 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 180 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-12-15 14:07:21,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 597. [2021-12-15 14:07:21,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 596 states have (on average 1.6963087248322148) internal successors, (1011), 596 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1011 transitions. [2021-12-15 14:07:21,542 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1011 transitions. Word has length 23 [2021-12-15 14:07:21,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,542 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 1011 transitions. [2021-12-15 14:07:21,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,542 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1011 transitions. [2021-12-15 14:07:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-15 14:07:21,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,543 INFO L514 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] [2021-12-15 14:07:21,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 14:07:21,544 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash -617343681, now seen corresponding path program 1 times [2021-12-15 14:07:21,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841809457] [2021-12-15 14:07:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841809457] [2021-12-15 14:07:21,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841809457] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935116063] [2021-12-15 14:07:21,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,569 INFO L87 Difference]: Start difference. First operand 597 states and 1011 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,578 INFO L93 Difference]: Finished difference Result 1095 states and 1868 transitions. [2021-12-15 14:07:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-15 14:07:21,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,582 INFO L225 Difference]: With dead ends: 1095 [2021-12-15 14:07:21,582 INFO L226 Difference]: Without dead ends: 1095 [2021-12-15 14:07:21,582 INFO L932 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 [2021-12-15 14:07:21,582 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 143 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2021-12-15 14:07:21,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 837. [2021-12-15 14:07:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.6590909090909092) internal successors, (1387), 836 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1387 transitions. [2021-12-15 14:07:21,595 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1387 transitions. Word has length 23 [2021-12-15 14:07:21,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,596 INFO L470 AbstractCegarLoop]: Abstraction has 837 states and 1387 transitions. [2021-12-15 14:07:21,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1387 transitions. [2021-12-15 14:07:21,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-15 14:07:21,597 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,597 INFO L514 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] [2021-12-15 14:07:21,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 14:07:21,598 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1897207359, now seen corresponding path program 1 times [2021-12-15 14:07:21,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085310598] [2021-12-15 14:07:21,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085310598] [2021-12-15 14:07:21,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085310598] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680401862] [2021-12-15 14:07:21,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,620 INFO L87 Difference]: Start difference. First operand 837 states and 1387 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,631 INFO L93 Difference]: Finished difference Result 1159 states and 1908 transitions. [2021-12-15 14:07:21,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-15 14:07:21,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,635 INFO L225 Difference]: With dead ends: 1159 [2021-12-15 14:07:21,635 INFO L226 Difference]: Without dead ends: 1159 [2021-12-15 14:07:21,636 INFO L932 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 [2021-12-15 14:07:21,637 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 54 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 175 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2021-12-15 14:07:21,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1157. [2021-12-15 14:07:21,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.6496539792387543) internal successors, (1907), 1156 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1907 transitions. [2021-12-15 14:07:21,653 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1907 transitions. Word has length 23 [2021-12-15 14:07:21,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,654 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1907 transitions. [2021-12-15 14:07:21,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1907 transitions. [2021-12-15 14:07:21,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-15 14:07:21,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,655 INFO L514 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] [2021-12-15 14:07:21,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 14:07:21,655 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1957570863, now seen corresponding path program 1 times [2021-12-15 14:07:21,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367396726] [2021-12-15 14:07:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367396726] [2021-12-15 14:07:21,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367396726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574301048] [2021-12-15 14:07:21,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,672 INFO L87 Difference]: Start difference. First operand 1157 states and 1907 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,681 INFO L93 Difference]: Finished difference Result 1175 states and 1908 transitions. [2021-12-15 14:07:21,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-15 14:07:21,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,684 INFO L225 Difference]: With dead ends: 1175 [2021-12-15 14:07:21,684 INFO L226 Difference]: Without dead ends: 1175 [2021-12-15 14:07:21,684 INFO L932 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 [2021-12-15 14:07:21,684 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 56 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 176 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2021-12-15 14:07:21,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1173. [2021-12-15 14:07:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 1.6271331058020477) internal successors, (1907), 1172 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1907 transitions. [2021-12-15 14:07:21,699 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1907 transitions. Word has length 24 [2021-12-15 14:07:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,699 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1907 transitions. [2021-12-15 14:07:21,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1907 transitions. [2021-12-15 14:07:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-15 14:07:21,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,700 INFO L514 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] [2021-12-15 14:07:21,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 14:07:21,701 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1316328079, now seen corresponding path program 1 times [2021-12-15 14:07:21,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239628846] [2021-12-15 14:07:21,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239628846] [2021-12-15 14:07:21,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239628846] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443299370] [2021-12-15 14:07:21,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,715 INFO L87 Difference]: Start difference. First operand 1173 states and 1907 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,729 INFO L93 Difference]: Finished difference Result 2119 states and 3476 transitions. [2021-12-15 14:07:21,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-15 14:07:21,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,734 INFO L225 Difference]: With dead ends: 2119 [2021-12-15 14:07:21,734 INFO L226 Difference]: Without dead ends: 2119 [2021-12-15 14:07:21,736 INFO L932 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 [2021-12-15 14:07:21,736 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 43 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 141 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2021-12-15 14:07:21,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1669. [2021-12-15 14:07:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1668 states have (on average 1.5845323741007193) internal successors, (2643), 1668 states have internal predecessors, (2643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2643 transitions. [2021-12-15 14:07:21,775 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2643 transitions. Word has length 24 [2021-12-15 14:07:21,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,776 INFO L470 AbstractCegarLoop]: Abstraction has 1669 states and 2643 transitions. [2021-12-15 14:07:21,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2643 transitions. [2021-12-15 14:07:21,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-15 14:07:21,778 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,778 INFO L514 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] [2021-12-15 14:07:21,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 14:07:21,778 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,779 INFO L85 PathProgramCache]: Analyzing trace with hash 36464401, now seen corresponding path program 1 times [2021-12-15 14:07:21,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763383763] [2021-12-15 14:07:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763383763] [2021-12-15 14:07:21,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763383763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989336972] [2021-12-15 14:07:21,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,793 INFO L87 Difference]: Start difference. First operand 1669 states and 2643 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,806 INFO L93 Difference]: Finished difference Result 2279 states and 3588 transitions. [2021-12-15 14:07:21,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-15 14:07:21,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,812 INFO L225 Difference]: With dead ends: 2279 [2021-12-15 14:07:21,812 INFO L226 Difference]: Without dead ends: 2279 [2021-12-15 14:07:21,813 INFO L932 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 [2021-12-15 14:07:21,813 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 53 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 176 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2021-12-15 14:07:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2277. [2021-12-15 14:07:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2276 states have (on average 1.5760105448154658) internal successors, (3587), 2276 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 3587 transitions. [2021-12-15 14:07:21,846 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 3587 transitions. Word has length 24 [2021-12-15 14:07:21,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,846 INFO L470 AbstractCegarLoop]: Abstraction has 2277 states and 3587 transitions. [2021-12-15 14:07:21,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 3587 transitions. [2021-12-15 14:07:21,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 14:07:21,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,849 INFO L514 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] [2021-12-15 14:07:21,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 14:07:21,849 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2143288106, now seen corresponding path program 1 times [2021-12-15 14:07:21,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11304951] [2021-12-15 14:07:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11304951] [2021-12-15 14:07:21,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11304951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046916501] [2021-12-15 14:07:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,864 INFO L87 Difference]: Start difference. First operand 2277 states and 3587 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,877 INFO L93 Difference]: Finished difference Result 2311 states and 3588 transitions. [2021-12-15 14:07:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-15 14:07:21,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,883 INFO L225 Difference]: With dead ends: 2311 [2021-12-15 14:07:21,883 INFO L226 Difference]: Without dead ends: 2311 [2021-12-15 14:07:21,883 INFO L932 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 [2021-12-15 14:07:21,884 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 55 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 172 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2021-12-15 14:07:21,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2309. [2021-12-15 14:07:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2308 states have (on average 1.5541594454072791) internal successors, (3587), 2308 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3587 transitions. [2021-12-15 14:07:21,914 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3587 transitions. Word has length 25 [2021-12-15 14:07:21,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:21,915 INFO L470 AbstractCegarLoop]: Abstraction has 2309 states and 3587 transitions. [2021-12-15 14:07:21,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3587 transitions. [2021-12-15 14:07:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 14:07:21,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:21,917 INFO L514 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] [2021-12-15 14:07:21,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 14:07:21,917 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:21,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:21,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1130610836, now seen corresponding path program 1 times [2021-12-15 14:07:21,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:21,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443827508] [2021-12-15 14:07:21,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:21,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:21,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:21,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443827508] [2021-12-15 14:07:21,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443827508] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:21,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:21,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:21,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752706350] [2021-12-15 14:07:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:21,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:21,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:21,932 INFO L87 Difference]: Start difference. First operand 2309 states and 3587 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:21,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:21,949 INFO L93 Difference]: Finished difference Result 4103 states and 6436 transitions. [2021-12-15 14:07:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-15 14:07:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:21,959 INFO L225 Difference]: With dead ends: 4103 [2021-12-15 14:07:21,959 INFO L226 Difference]: Without dead ends: 4103 [2021-12-15 14:07:21,960 INFO L932 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 [2021-12-15 14:07:21,960 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 40 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:21,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 139 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:21,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2021-12-15 14:07:22,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 3333. [2021-12-15 14:07:22,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3332 states have (on average 1.508703481392557) internal successors, (5027), 3332 states have internal predecessors, (5027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 5027 transitions. [2021-12-15 14:07:22,042 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 5027 transitions. Word has length 25 [2021-12-15 14:07:22,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:22,042 INFO L470 AbstractCegarLoop]: Abstraction has 3333 states and 5027 transitions. [2021-12-15 14:07:22,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 5027 transitions. [2021-12-15 14:07:22,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 14:07:22,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:22,046 INFO L514 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] [2021-12-15 14:07:22,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 14:07:22,046 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:22,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash -149252842, now seen corresponding path program 1 times [2021-12-15 14:07:22,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:22,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245671294] [2021-12-15 14:07:22,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:22,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:22,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:22,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:22,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245671294] [2021-12-15 14:07:22,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245671294] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:22,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:22,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:22,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263124843] [2021-12-15 14:07:22,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:22,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:22,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:22,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:22,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:22,084 INFO L87 Difference]: Start difference. First operand 3333 states and 5027 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:22,104 INFO L93 Difference]: Finished difference Result 4487 states and 6724 transitions. [2021-12-15 14:07:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:22,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-15 14:07:22,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:22,116 INFO L225 Difference]: With dead ends: 4487 [2021-12-15 14:07:22,116 INFO L226 Difference]: Without dead ends: 4487 [2021-12-15 14:07:22,117 INFO L932 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 [2021-12-15 14:07:22,118 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 52 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:22,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 177 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:22,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2021-12-15 14:07:22,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 4485. [2021-12-15 14:07:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4485 states, 4484 states have (on average 1.4993309545049063) internal successors, (6723), 4484 states have internal predecessors, (6723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 6723 transitions. [2021-12-15 14:07:22,185 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 6723 transitions. Word has length 25 [2021-12-15 14:07:22,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:22,186 INFO L470 AbstractCegarLoop]: Abstraction has 4485 states and 6723 transitions. [2021-12-15 14:07:22,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 6723 transitions. [2021-12-15 14:07:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-15 14:07:22,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:22,189 INFO L514 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] [2021-12-15 14:07:22,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 14:07:22,190 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:22,190 INFO L85 PathProgramCache]: Analyzing trace with hash 689412294, now seen corresponding path program 1 times [2021-12-15 14:07:22,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:22,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562617483] [2021-12-15 14:07:22,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:22,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:22,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:22,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562617483] [2021-12-15 14:07:22,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562617483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:22,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:22,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:22,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752840790] [2021-12-15 14:07:22,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:22,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:22,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:22,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:22,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:22,207 INFO L87 Difference]: Start difference. First operand 4485 states and 6723 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:22,228 INFO L93 Difference]: Finished difference Result 4551 states and 6724 transitions. [2021-12-15 14:07:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:22,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-15 14:07:22,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:22,250 INFO L225 Difference]: With dead ends: 4551 [2021-12-15 14:07:22,250 INFO L226 Difference]: Without dead ends: 4551 [2021-12-15 14:07:22,252 INFO L932 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 [2021-12-15 14:07:22,252 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 54 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:22,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 168 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:22,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2021-12-15 14:07:22,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 4549. [2021-12-15 14:07:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4549 states, 4548 states have (on average 1.4782321899736148) internal successors, (6723), 4548 states have internal predecessors, (6723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4549 states to 4549 states and 6723 transitions. [2021-12-15 14:07:22,338 INFO L78 Accepts]: Start accepts. Automaton has 4549 states and 6723 transitions. Word has length 26 [2021-12-15 14:07:22,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:22,338 INFO L470 AbstractCegarLoop]: Abstraction has 4549 states and 6723 transitions. [2021-12-15 14:07:22,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4549 states and 6723 transitions. [2021-12-15 14:07:22,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-15 14:07:22,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:22,342 INFO L514 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] [2021-12-15 14:07:22,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-15 14:07:22,343 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:22,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:22,343 INFO L85 PathProgramCache]: Analyzing trace with hash -331656060, now seen corresponding path program 1 times [2021-12-15 14:07:22,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:22,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137550885] [2021-12-15 14:07:22,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:22,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:22,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:22,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137550885] [2021-12-15 14:07:22,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137550885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:22,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:22,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:22,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963240685] [2021-12-15 14:07:22,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:22,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:22,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:22,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:22,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:22,368 INFO L87 Difference]: Start difference. First operand 4549 states and 6723 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:22,396 INFO L93 Difference]: Finished difference Result 7943 states and 11844 transitions. [2021-12-15 14:07:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:22,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-15 14:07:22,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:22,408 INFO L225 Difference]: With dead ends: 7943 [2021-12-15 14:07:22,408 INFO L226 Difference]: Without dead ends: 7943 [2021-12-15 14:07:22,408 INFO L932 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 [2021-12-15 14:07:22,409 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 37 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:22,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 137 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:22,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2021-12-15 14:07:22,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 6661. [2021-12-15 14:07:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6661 states, 6660 states have (on average 1.4322822822822823) internal successors, (9539), 6660 states have internal predecessors, (9539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6661 states to 6661 states and 9539 transitions. [2021-12-15 14:07:22,554 INFO L78 Accepts]: Start accepts. Automaton has 6661 states and 9539 transitions. Word has length 26 [2021-12-15 14:07:22,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:22,554 INFO L470 AbstractCegarLoop]: Abstraction has 6661 states and 9539 transitions. [2021-12-15 14:07:22,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 6661 states and 9539 transitions. [2021-12-15 14:07:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-15 14:07:22,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:22,561 INFO L514 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] [2021-12-15 14:07:22,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-15 14:07:22,561 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1611519738, now seen corresponding path program 1 times [2021-12-15 14:07:22,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:22,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857334589] [2021-12-15 14:07:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:22,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:22,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:22,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857334589] [2021-12-15 14:07:22,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857334589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:22,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:22,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:22,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509208008] [2021-12-15 14:07:22,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:22,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:22,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:22,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:22,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:22,583 INFO L87 Difference]: Start difference. First operand 6661 states and 9539 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:22,621 INFO L93 Difference]: Finished difference Result 8839 states and 12548 transitions. [2021-12-15 14:07:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:22,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-15 14:07:22,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:22,634 INFO L225 Difference]: With dead ends: 8839 [2021-12-15 14:07:22,634 INFO L226 Difference]: Without dead ends: 8839 [2021-12-15 14:07:22,635 INFO L932 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 [2021-12-15 14:07:22,636 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 51 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:22,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 178 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8839 states. [2021-12-15 14:07:22,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8839 to 8837. [2021-12-15 14:07:22,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8837 states, 8836 states have (on average 1.4199864191942055) internal successors, (12547), 8836 states have internal predecessors, (12547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8837 states to 8837 states and 12547 transitions. [2021-12-15 14:07:22,780 INFO L78 Accepts]: Start accepts. Automaton has 8837 states and 12547 transitions. Word has length 26 [2021-12-15 14:07:22,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:22,780 INFO L470 AbstractCegarLoop]: Abstraction has 8837 states and 12547 transitions. [2021-12-15 14:07:22,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,780 INFO L276 IsEmpty]: Start isEmpty. Operand 8837 states and 12547 transitions. [2021-12-15 14:07:22,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-15 14:07:22,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:22,787 INFO L514 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] [2021-12-15 14:07:22,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-15 14:07:22,787 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:22,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:22,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1691188181, now seen corresponding path program 1 times [2021-12-15 14:07:22,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:22,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757864786] [2021-12-15 14:07:22,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:22,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:22,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:22,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757864786] [2021-12-15 14:07:22,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757864786] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:22,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:22,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:22,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004912340] [2021-12-15 14:07:22,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:22,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:22,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:22,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:22,809 INFO L87 Difference]: Start difference. First operand 8837 states and 12547 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:22,847 INFO L93 Difference]: Finished difference Result 8967 states and 12548 transitions. [2021-12-15 14:07:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:22,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-15 14:07:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:22,859 INFO L225 Difference]: With dead ends: 8967 [2021-12-15 14:07:22,859 INFO L226 Difference]: Without dead ends: 8967 [2021-12-15 14:07:22,859 INFO L932 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 [2021-12-15 14:07:22,860 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 53 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:22,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 164 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:22,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8967 states. [2021-12-15 14:07:22,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8967 to 8965. [2021-12-15 14:07:22,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8965 states, 8964 states have (on average 1.3997099509147701) internal successors, (12547), 8964 states have internal predecessors, (12547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8965 states to 8965 states and 12547 transitions. [2021-12-15 14:07:22,992 INFO L78 Accepts]: Start accepts. Automaton has 8965 states and 12547 transitions. Word has length 27 [2021-12-15 14:07:22,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:22,992 INFO L470 AbstractCegarLoop]: Abstraction has 8965 states and 12547 transitions. [2021-12-15 14:07:22,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:22,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8965 states and 12547 transitions. [2021-12-15 14:07:23,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-15 14:07:23,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:23,002 INFO L514 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] [2021-12-15 14:07:23,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-15 14:07:23,002 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:23,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:23,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1582710761, now seen corresponding path program 1 times [2021-12-15 14:07:23,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:23,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384664910] [2021-12-15 14:07:23,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:23,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:23,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:23,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384664910] [2021-12-15 14:07:23,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384664910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:23,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:23,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:23,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085671076] [2021-12-15 14:07:23,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:23,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:23,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:23,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:23,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:23,019 INFO L87 Difference]: Start difference. First operand 8965 states and 12547 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:23,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:23,058 INFO L93 Difference]: Finished difference Result 15367 states and 21636 transitions. [2021-12-15 14:07:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-15 14:07:23,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:23,082 INFO L225 Difference]: With dead ends: 15367 [2021-12-15 14:07:23,083 INFO L226 Difference]: Without dead ends: 15367 [2021-12-15 14:07:23,083 INFO L932 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 [2021-12-15 14:07:23,084 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 34 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:23,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:23,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15367 states. [2021-12-15 14:07:23,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15367 to 13317. [2021-12-15 14:07:23,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13317 states, 13316 states have (on average 1.3555872634424753) internal successors, (18051), 13316 states have internal predecessors, (18051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:23,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13317 states to 13317 states and 18051 transitions. [2021-12-15 14:07:23,291 INFO L78 Accepts]: Start accepts. Automaton has 13317 states and 18051 transitions. Word has length 27 [2021-12-15 14:07:23,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:23,291 INFO L470 AbstractCegarLoop]: Abstraction has 13317 states and 18051 transitions. [2021-12-15 14:07:23,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 13317 states and 18051 transitions. [2021-12-15 14:07:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-15 14:07:23,302 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:23,302 INFO L514 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] [2021-12-15 14:07:23,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-15 14:07:23,303 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:23,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:23,303 INFO L85 PathProgramCache]: Analyzing trace with hash 302847083, now seen corresponding path program 1 times [2021-12-15 14:07:23,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:23,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390438908] [2021-12-15 14:07:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:23,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:23,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:23,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390438908] [2021-12-15 14:07:23,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390438908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:23,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:23,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:23,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247643925] [2021-12-15 14:07:23,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:23,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:23,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:23,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:23,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:23,321 INFO L87 Difference]: Start difference. First operand 13317 states and 18051 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:23,446 INFO L93 Difference]: Finished difference Result 17415 states and 23300 transitions. [2021-12-15 14:07:23,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:23,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-15 14:07:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:23,468 INFO L225 Difference]: With dead ends: 17415 [2021-12-15 14:07:23,468 INFO L226 Difference]: Without dead ends: 17415 [2021-12-15 14:07:23,469 INFO L932 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 [2021-12-15 14:07:23,469 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 50 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:23,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 179 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 14:07:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2021-12-15 14:07:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 17413. [2021-12-15 14:07:23,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17413 states, 17412 states have (on average 1.3381001608086378) internal successors, (23299), 17412 states have internal predecessors, (23299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17413 states to 17413 states and 23299 transitions. [2021-12-15 14:07:23,694 INFO L78 Accepts]: Start accepts. Automaton has 17413 states and 23299 transitions. Word has length 27 [2021-12-15 14:07:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:23,694 INFO L470 AbstractCegarLoop]: Abstraction has 17413 states and 23299 transitions. [2021-12-15 14:07:23,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:23,694 INFO L276 IsEmpty]: Start isEmpty. Operand 17413 states and 23299 transitions. [2021-12-15 14:07:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-15 14:07:23,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:23,707 INFO L514 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] [2021-12-15 14:07:23,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-15 14:07:23,707 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1819608763, now seen corresponding path program 1 times [2021-12-15 14:07:23,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:23,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351797626] [2021-12-15 14:07:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:23,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:23,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:23,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:23,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351797626] [2021-12-15 14:07:23,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351797626] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:23,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:23,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:23,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969379580] [2021-12-15 14:07:23,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:23,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:23,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:23,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:23,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:23,724 INFO L87 Difference]: Start difference. First operand 17413 states and 23299 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:23,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:23,878 INFO L93 Difference]: Finished difference Result 17671 states and 23300 transitions. [2021-12-15 14:07:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:23,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-15 14:07:23,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:23,904 INFO L225 Difference]: With dead ends: 17671 [2021-12-15 14:07:23,905 INFO L226 Difference]: Without dead ends: 17671 [2021-12-15 14:07:23,905 INFO L932 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 [2021-12-15 14:07:23,905 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 52 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:23,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 160 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17671 states. [2021-12-15 14:07:24,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17671 to 17669. [2021-12-15 14:07:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17669 states, 17668 states have (on average 1.318711795336201) internal successors, (23299), 17668 states have internal predecessors, (23299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17669 states to 17669 states and 23299 transitions. [2021-12-15 14:07:24,281 INFO L78 Accepts]: Start accepts. Automaton has 17669 states and 23299 transitions. Word has length 28 [2021-12-15 14:07:24,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:24,281 INFO L470 AbstractCegarLoop]: Abstraction has 17669 states and 23299 transitions. [2021-12-15 14:07:24,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand 17669 states and 23299 transitions. [2021-12-15 14:07:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-15 14:07:24,290 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:24,290 INFO L514 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] [2021-12-15 14:07:24,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-15 14:07:24,290 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:24,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:24,291 INFO L85 PathProgramCache]: Analyzing trace with hash 798540409, now seen corresponding path program 1 times [2021-12-15 14:07:24,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:24,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345231180] [2021-12-15 14:07:24,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:24,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:24,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:24,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345231180] [2021-12-15 14:07:24,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345231180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:24,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:24,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:24,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847148880] [2021-12-15 14:07:24,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:24,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:24,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:24,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:24,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:24,314 INFO L87 Difference]: Start difference. First operand 17669 states and 23299 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:24,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:24,370 INFO L93 Difference]: Finished difference Result 29703 states and 39172 transitions. [2021-12-15 14:07:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:24,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-15 14:07:24,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:24,412 INFO L225 Difference]: With dead ends: 29703 [2021-12-15 14:07:24,412 INFO L226 Difference]: Without dead ends: 29703 [2021-12-15 14:07:24,413 INFO L932 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 [2021-12-15 14:07:24,413 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 31 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:24,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 133 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:24,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29703 states. [2021-12-15 14:07:24,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29703 to 26629. [2021-12-15 14:07:24,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26629 states, 26628 states have (on average 1.2787667117320114) internal successors, (34051), 26628 states have internal predecessors, (34051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26629 states to 26629 states and 34051 transitions. [2021-12-15 14:07:24,745 INFO L78 Accepts]: Start accepts. Automaton has 26629 states and 34051 transitions. Word has length 28 [2021-12-15 14:07:24,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:24,745 INFO L470 AbstractCegarLoop]: Abstraction has 26629 states and 34051 transitions. [2021-12-15 14:07:24,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 26629 states and 34051 transitions. [2021-12-15 14:07:24,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-15 14:07:24,784 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:24,784 INFO L514 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] [2021-12-15 14:07:24,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-15 14:07:24,784 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:24,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:24,785 INFO L85 PathProgramCache]: Analyzing trace with hash -481323269, now seen corresponding path program 1 times [2021-12-15 14:07:24,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:24,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402721096] [2021-12-15 14:07:24,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:24,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:24,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:24,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402721096] [2021-12-15 14:07:24,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402721096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:24,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:24,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:24,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765738698] [2021-12-15 14:07:24,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:24,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:24,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:24,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:24,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:24,813 INFO L87 Difference]: Start difference. First operand 26629 states and 34051 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:24,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:24,935 INFO L93 Difference]: Finished difference Result 34311 states and 43012 transitions. [2021-12-15 14:07:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-15 14:07:24,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:25,046 INFO L225 Difference]: With dead ends: 34311 [2021-12-15 14:07:25,047 INFO L226 Difference]: Without dead ends: 34311 [2021-12-15 14:07:25,047 INFO L932 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 [2021-12-15 14:07:25,048 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 49 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:25,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 180 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:25,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34311 states. [2021-12-15 14:07:25,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34311 to 34309. [2021-12-15 14:07:25,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34309 states, 34308 states have (on average 1.2536726128016789) internal successors, (43011), 34308 states have internal predecessors, (43011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:25,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34309 states to 34309 states and 43011 transitions. [2021-12-15 14:07:25,713 INFO L78 Accepts]: Start accepts. Automaton has 34309 states and 43011 transitions. Word has length 28 [2021-12-15 14:07:25,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:25,713 INFO L470 AbstractCegarLoop]: Abstraction has 34309 states and 43011 transitions. [2021-12-15 14:07:25,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:25,713 INFO L276 IsEmpty]: Start isEmpty. Operand 34309 states and 43011 transitions. [2021-12-15 14:07:25,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-15 14:07:25,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:25,728 INFO L514 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] [2021-12-15 14:07:25,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-15 14:07:25,728 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:25,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1014835328, now seen corresponding path program 1 times [2021-12-15 14:07:25,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:25,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907216507] [2021-12-15 14:07:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:25,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:25,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:25,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907216507] [2021-12-15 14:07:25,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907216507] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:25,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:25,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:25,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426834486] [2021-12-15 14:07:25,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:25,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:25,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:25,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:25,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:25,750 INFO L87 Difference]: Start difference. First operand 34309 states and 43011 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:25,824 INFO L93 Difference]: Finished difference Result 34823 states and 43012 transitions. [2021-12-15 14:07:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:25,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-12-15 14:07:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:25,868 INFO L225 Difference]: With dead ends: 34823 [2021-12-15 14:07:25,868 INFO L226 Difference]: Without dead ends: 34823 [2021-12-15 14:07:25,869 INFO L932 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 [2021-12-15 14:07:25,870 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 51 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:25,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 156 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34823 states. [2021-12-15 14:07:26,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34823 to 34821. [2021-12-15 14:07:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34821 states, 34820 states have (on average 1.23523836875359) internal successors, (43011), 34820 states have internal predecessors, (43011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34821 states to 34821 states and 43011 transitions. [2021-12-15 14:07:26,493 INFO L78 Accepts]: Start accepts. Automaton has 34821 states and 43011 transitions. Word has length 29 [2021-12-15 14:07:26,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:26,493 INFO L470 AbstractCegarLoop]: Abstraction has 34821 states and 43011 transitions. [2021-12-15 14:07:26,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:26,493 INFO L276 IsEmpty]: Start isEmpty. Operand 34821 states and 43011 transitions. [2021-12-15 14:07:26,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-15 14:07:26,506 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:26,506 INFO L514 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] [2021-12-15 14:07:26,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-15 14:07:26,506 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:26,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:26,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2035903682, now seen corresponding path program 1 times [2021-12-15 14:07:26,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:26,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303217372] [2021-12-15 14:07:26,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:26,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:26,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:26,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:26,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303217372] [2021-12-15 14:07:26,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303217372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:26,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:26,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:26,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043550946] [2021-12-15 14:07:26,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:26,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:26,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:26,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:26,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:26,519 INFO L87 Difference]: Start difference. First operand 34821 states and 43011 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:26,632 INFO L93 Difference]: Finished difference Result 67591 states and 79876 transitions. [2021-12-15 14:07:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:26,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-12-15 14:07:26,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:26,707 INFO L225 Difference]: With dead ends: 67591 [2021-12-15 14:07:26,707 INFO L226 Difference]: Without dead ends: 67591 [2021-12-15 14:07:26,707 INFO L932 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 [2021-12-15 14:07:26,708 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 49 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:26,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 151 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67591 states. [2021-12-15 14:07:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67591 to 67589. [2021-12-15 14:07:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67589 states, 67588 states have (on average 1.1817926259099247) internal successors, (79875), 67588 states have internal predecessors, (79875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67589 states to 67589 states and 79875 transitions. [2021-12-15 14:07:27,522 INFO L78 Accepts]: Start accepts. Automaton has 67589 states and 79875 transitions. Word has length 29 [2021-12-15 14:07:27,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:27,523 INFO L470 AbstractCegarLoop]: Abstraction has 67589 states and 79875 transitions. [2021-12-15 14:07:27,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:27,523 INFO L276 IsEmpty]: Start isEmpty. Operand 67589 states and 79875 transitions. [2021-12-15 14:07:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-15 14:07:27,559 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:27,562 INFO L514 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] [2021-12-15 14:07:27,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-15 14:07:27,562 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:27,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:27,563 INFO L85 PathProgramCache]: Analyzing trace with hash -756040004, now seen corresponding path program 1 times [2021-12-15 14:07:27,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:27,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432583156] [2021-12-15 14:07:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:27,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:27,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:27,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432583156] [2021-12-15 14:07:27,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432583156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:27,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:27,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:27,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88930692] [2021-12-15 14:07:27,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:27,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:27,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:27,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:27,583 INFO L87 Difference]: Start difference. First operand 67589 states and 79875 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:27,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:27,757 INFO L93 Difference]: Finished difference Result 71687 states and 84996 transitions. [2021-12-15 14:07:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:27,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-12-15 14:07:27,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:28,033 INFO L225 Difference]: With dead ends: 71687 [2021-12-15 14:07:28,034 INFO L226 Difference]: Without dead ends: 71687 [2021-12-15 14:07:28,034 INFO L932 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 [2021-12-15 14:07:28,035 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 28 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:28,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:28,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71687 states. [2021-12-15 14:07:28,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71687 to 67589. [2021-12-15 14:07:28,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67589 states, 67588 states have (on average 1.166642007456945) internal successors, (78851), 67588 states have internal predecessors, (78851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:28,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67589 states to 67589 states and 78851 transitions. [2021-12-15 14:07:28,783 INFO L78 Accepts]: Start accepts. Automaton has 67589 states and 78851 transitions. Word has length 29 [2021-12-15 14:07:28,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:28,784 INFO L470 AbstractCegarLoop]: Abstraction has 67589 states and 78851 transitions. [2021-12-15 14:07:28,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:28,784 INFO L276 IsEmpty]: Start isEmpty. Operand 67589 states and 78851 transitions. [2021-12-15 14:07:28,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-15 14:07:28,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:28,821 INFO L514 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] [2021-12-15 14:07:28,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-15 14:07:28,822 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:28,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:28,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1311711408, now seen corresponding path program 1 times [2021-12-15 14:07:28,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:28,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228074141] [2021-12-15 14:07:28,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:28,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:28,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:28,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:28,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228074141] [2021-12-15 14:07:28,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228074141] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:28,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:28,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:28,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943311874] [2021-12-15 14:07:28,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:28,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:28,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:28,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:28,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:28,840 INFO L87 Difference]: Start difference. First operand 67589 states and 78851 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:29,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:29,256 INFO L93 Difference]: Finished difference Result 109573 states and 124931 transitions. [2021-12-15 14:07:29,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:29,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-15 14:07:29,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:29,399 INFO L225 Difference]: With dead ends: 109573 [2021-12-15 14:07:29,399 INFO L226 Difference]: Without dead ends: 109573 [2021-12-15 14:07:29,400 INFO L932 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 [2021-12-15 14:07:29,400 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 24 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:29,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 128 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:29,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109573 states. [2021-12-15 14:07:30,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109573 to 105477. [2021-12-15 14:07:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105477 states, 105476 states have (on average 1.1456160643179492) internal successors, (120835), 105476 states have internal predecessors, (120835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105477 states to 105477 states and 120835 transitions. [2021-12-15 14:07:31,088 INFO L78 Accepts]: Start accepts. Automaton has 105477 states and 120835 transitions. Word has length 30 [2021-12-15 14:07:31,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:31,088 INFO L470 AbstractCegarLoop]: Abstraction has 105477 states and 120835 transitions. [2021-12-15 14:07:31,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand 105477 states and 120835 transitions. [2021-12-15 14:07:31,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-15 14:07:31,152 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:31,152 INFO L514 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] [2021-12-15 14:07:31,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-15 14:07:31,152 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:31,152 INFO L85 PathProgramCache]: Analyzing trace with hash 31847730, now seen corresponding path program 1 times [2021-12-15 14:07:31,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:31,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457354913] [2021-12-15 14:07:31,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:31,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:31,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:31,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457354913] [2021-12-15 14:07:31,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457354913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:31,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:31,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:31,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043876633] [2021-12-15 14:07:31,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:31,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:31,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:31,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:31,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:31,173 INFO L87 Difference]: Start difference. First operand 105477 states and 120835 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:31,421 INFO L93 Difference]: Finished difference Result 132099 states and 145410 transitions. [2021-12-15 14:07:31,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:31,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-15 14:07:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:31,422 INFO L225 Difference]: With dead ends: 132099 [2021-12-15 14:07:31,422 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 14:07:31,422 INFO L932 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 [2021-12-15 14:07:31,423 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 46 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:31,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 180 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:31,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 14:07:31,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 14:07:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 14:07:31,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-12-15 14:07:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:31,424 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 14:07:31,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 14:07:31,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 14:07:31,426 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-12-15 14:07:31,427 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-12-15 14:07:31,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-15 14:07:31,429 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:31,429 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 14:07:31,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 02:07:31 BoogieIcfgContainer [2021-12-15 14:07:31,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 14:07:31,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 14:07:31,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 14:07:31,431 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 14:07:31,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:07:20" (3/4) ... [2021-12-15 14:07:31,433 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 14:07:31,440 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-12-15 14:07:31,440 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 14:07:31,441 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-15 14:07:31,441 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 14:07:31,465 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 14:07:31,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 14:07:31,465 INFO L158 Benchmark]: Toolchain (without parser) took 11825.98ms. Allocated memory was 111.1MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 82.7MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2021-12-15 14:07:31,465 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory was 68.5MB in the beginning and 68.5MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:07:31,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.67ms. Allocated memory was 111.1MB in the beginning and 144.7MB in the end (delta: 33.6MB). Free memory was 82.7MB in the beginning and 119.1MB in the end (delta: -36.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:07:31,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.04ms. Allocated memory is still 144.7MB. Free memory was 119.1MB in the beginning and 117.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:07:31,466 INFO L158 Benchmark]: Boogie Preprocessor took 15.00ms. Allocated memory is still 144.7MB. Free memory was 117.6MB in the beginning and 116.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:07:31,466 INFO L158 Benchmark]: RCFGBuilder took 391.58ms. Allocated memory is still 144.7MB. Free memory was 116.1MB in the beginning and 102.3MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 14:07:31,466 INFO L158 Benchmark]: TraceAbstraction took 11061.94ms. Allocated memory was 144.7MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 101.7MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2021-12-15 14:07:31,467 INFO L158 Benchmark]: Witness Printer took 33.72ms. Allocated memory is still 9.3GB. Free memory was 8.0GB in the beginning and 8.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 14:07:31,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory was 68.5MB in the beginning and 68.5MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.67ms. Allocated memory was 111.1MB in the beginning and 144.7MB in the end (delta: 33.6MB). Free memory was 82.7MB in the beginning and 119.1MB in the end (delta: -36.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.04ms. Allocated memory is still 144.7MB. Free memory was 119.1MB in the beginning and 117.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.00ms. Allocated memory is still 144.7MB. Free memory was 117.6MB in the beginning and 116.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.58ms. Allocated memory is still 144.7MB. Free memory was 116.1MB in the beginning and 102.3MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11061.94ms. Allocated memory was 144.7MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 101.7MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 33.72ms. Allocated memory is still 9.3GB. Free memory was 8.0GB in the beginning and 8.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 191]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 35, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1699 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1699 mSDsluCounter, 5554 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2170 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 3384 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105477occurred in iteration=34, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 35 MinimizatonAttempts, 16418 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 787 ConstructedInterpolants, 0 QuantifiedInterpolants, 1719 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-15 14:07:31,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE